1
|
Sharaf MA, Wang S, Mashrah MA, Xu Y, Haider O, He F. Outcomes that may affect implant and prosthesis survival and complications in maxillary fixed prosthesis supported by four or six implants: A systematic review and meta-analysis. Heliyon 2024; 10:e24365. [PMID: 38317918 PMCID: PMC10839890 DOI: 10.1016/j.heliyon.2024.e24365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 01/04/2024] [Accepted: 01/08/2024] [Indexed: 02/07/2024] Open
Abstract
Objective To investigate whether the clinical and radiographical outcomes are affected when four or six implants support the maxillary fixed complete denture (FCD). Materials and methods This study was registered on PROSPERO (CRD42021226432) and followed the PRISMA guidelines. The focused PICO question was, "For an edentulous maxillary patient rehabilitated with an implant-supported fixed prosthesis, do the clinical and radiographical outcomes differ when four or six implants support the prosthesis ". A thorough search of the relevant studies was designed and performed electronically. The survival rate of implant and prosthesis, marginal bone loss, and complications (mechanical and biological) were the primary outcomes, whereas implant distribution and using the surgical guide, follow-up, and framework material were evaluated as secondary outcomes. Results Out of 1099 articles initially retrieved, 53 clearly stated the outcomes of interest and were included in this study. There were no significant differences in implant and prosthesis survival, technical/mechanical complications, and biological complications between the 4-implant group (4-IG) and the 6-implant group (6-IG). However, marginal bone loss (MBL) was significantly higher in the 4-IG (p < 0.01). The surgical guide and follow-up period did not significantly affect implant/prosthesis survival. Additionally, using the CAD/CAM milled framework and anteroposterior implant distribution were associated with significantly higher implant survival in the 6-IG (p < 0.01). Conclusion The findings of this study indicated that having a greater number of implants, as seen in the 6-implant group, can lead to a decrease in technical and biological complications and reduce marginal bone loss. It is worth noting that factors such as using CAD/CAM frameworks and the anteroposterior distribution of implants were recognized as important in improving implant survival rates when more implants are present.
Collapse
Affiliation(s)
- Mufeed Ahmed Sharaf
- Department of Prosthodontics, College of Dentistry, Ibb University, Ibb, Yemen
| | - Siyuan Wang
- Department of Prosthodontics, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Mubarak Ahmed Mashrah
- Department of Implantology, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, Guangdong 510182, China
| | - Yangbo Xu
- Department of Prosthodontics, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Ohood Haider
- Department of Orthodontics, Medical Center of Stomatology, Second Xiangya Hospital, Central South University, Changsha, China
| | - Fuming He
- Department of Prosthodontics, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, Zhejiang, China
| |
Collapse
|
2
|
Viski IS, Lee JD, Scialabba R, Lee SJ. Retrieval of cement-retained zirconia implant-supported crowns with an Er,Cr:YSGG laser. J Prosthet Dent 2024:S0022-3913(23)00830-2. [PMID: 38184397 DOI: 10.1016/j.prosdent.2023.12.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 12/14/2023] [Accepted: 12/15/2023] [Indexed: 01/08/2024]
Abstract
STATEMENT OF PROBLEM Cement-retained implant-supported crowns can be challenging to retrieve from the abutment once technical or biological issues arise. Removal traditionally requires sectioning the crown with rotary instruments, which causes irreversible damage to the crown and potential damage to the periodontal apparatus stabilizing the implant. PURPOSE The purpose of this in vitro study was to evaluate an erbium, chromium-doped yttrium, scandium, gallium, and garnet (Er,Cr:YSGG) laser as a minimally invasive alternative for the retrieval of zirconia implant-supported crowns from titanium abutments. Time, temperature, and structural changes to the crown after retrieval were assessed. Appropriate laser parameters were established for this method of crown retrieval. MATERIAL AND METHODS Twenty zirconia crowns were milled for a maxillary left second premolar based on a CAD-CAM implant analog cast. Ten of these crowns were cemented with a noneugenol zinc oxide dental cement (group Temp) (n=10). The remaining 10 were cemented with a self-adhesive universal resin cement (group Resin) (n=10). Er,Cr:YSGG laser irradiation was performed with the Waterlase iPlus for 1-minute cycles. An attempt was made to remove the crown with a mechanical instrument after each cycle. A type K thermocouple continuously recorded temperature at the level of the abutment. For statistical comparison of decementation time and temperature, the Mann-Whitney test was used (α=.05). Scanning electron microscopy of the nonirradiated and the irradiated crowns was used for analysis of structural and dimensional changes. RESULTS A significant difference (P<.001) was found in the time ±standard deviation required to retrieve the crowns between group Temp (02:40 ±00:18 minutes:seconds) and group Resin (05:26 ±00:36 minutes:seconds). A significant difference (P<.001) was found in the mean ±standard deviation temperature recorded between group Temp (24.0 ±1.19 °C) and group Resin (25.7 ±0.66 °C). No structural changes to crowns were observed after irradiation. CONCLUSIONS Retrieval of cement-retained zirconia implant-supported crowns with an Er,Cr:YSGG laser is safe and efficient. Crowns luted with zinc oxide dental cement were retrieved significantly faster while maintaining a significantly lower average temperature than those luted with resin cement. Laser irradiation for decementation did not cause structural changes to zirconia implant-supported crowns.
Collapse
Affiliation(s)
- Ionut Sebastian Viski
- Graduate student, Advanced Graduate Prosthodontics, Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, Mass
| | - Jason D Lee
- Assistant professor, Advanced Graduate Prosthodontics, Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, Mass
| | - Rebecca Scialabba
- Graduate Dental student, Harvard School of Dental Medicine, Boston, Mass
| | - Sang J Lee
- Associate Professor, Advanced Graduate Prosthodontics, Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, Mass.
| |
Collapse
|
3
|
Mishra SK, Bhasmey SR, Chowdhary R. Complete-arch implant-supported fixed dental prostheses fabricated with PEEK and PEKK framework: a systematic review. Evid Based Dent 2023; 24:193. [PMID: 37674039 DOI: 10.1038/s41432-023-00928-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 08/08/2023] [Indexed: 09/08/2023]
Abstract
PURPOSE To evaluate the performance of complete-arch implant-supported fixed dental prostheses (FDPs) fabricated with polyetheretherketone (PEEK) and polyetherketoneketone (PEKK) framework in clinical cases. MATERIALS AND METHODS This systematic review followed the guidelines of Preferred Reporting Items for Systematic Reviews and Meta-Analyses and was registered in the International Prospective Register of Systematic Reviews with the number CRD42023399494. The electronic database PubMed, Cochrane Library and EBSCOhost were assessed for clinical research and reports on complete-arch implant-supported FDPs fabricated with PEEK and PEKK framework. Human studies with a minimum follow-up of 1 year and published in an English language were the only ones included. RESULTS The initial database and hand search provided 564 articles. Finally, 12 articles published between 2018 and 2022 were included in this systematic review. The mean follow-up ranged from 1 year to 6 years. The included studies reported 119 (114 PEEK, 5 PEKK) complete-arch implant-supported FDPs during 1 year follow-up. The cumulative survival rate of prostheses with PEEK as a framework was 97.3%. Prostheses fractures and complications were found with both PEEK and PEKK frameworks. No implant failure reported with both PEEK and PEKK prostheses. CONCLUSION In short-term follow-up, the complete-arch implant-supported FDPs with PEEK as a framework showed a good survival rate and acceptable health of the supporting tissues. The PEEK framework had shown adhesion issues as the most common prosthetic complication. Limited data were available on PEKK as framework material, so further long-term clinical trials are required.
Collapse
Affiliation(s)
- Sunil Kumar Mishra
- Department of Prosthodontics, Rama Dental College Hospital and Research Centre, Kanpur, Uttar Pradesh, India.
| | - Srinivas Rao Bhasmey
- Department of Prosthodontics, Gitam Dental College, Visakhapatnam, Andhra Pradesh, India
| | - Ramesh Chowdhary
- Department of Prosthodontics, Sri Siddhartha Dental College and Hospital, Tumkur, Karnataka, India
| |
Collapse
|
4
|
Nikellis T, Lampraki E, Romeo D, Tsigarida A, Barmak AB, Malamou C, Ercoli C, Papaspyridakos P, Kotsailidi EA, Chochlidakis K. Survival rates, patient satisfaction, and prosthetic complications of implant fixed complete dental prostheses: a 12-month prospective study. J Prosthodont 2023; 32:214-220. [PMID: 35964246 DOI: 10.1111/jopr.13593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 08/07/2022] [Indexed: 11/28/2022] Open
Abstract
PURPOSE To determine the survival rate, incidence of prosthetic complications, and patient satisfaction of implant fixed complete dental prostheses (IFCDPs) after a mean observation period of 1.4 years. MATERIALS AND METHODS Twenty-eight (28) eligible participants were recruited according to specific inclusion and exclusion criteria. The definitive metal-acrylic resin IFCDPs consisted of titanium bars veneered with acrylic resin and acrylic denture teeth. Prosthodontic complications, divided into major and minor, were monitored. Parameters such as gender, jaw location, bruxism, and occlusal scheme were evaluated. Moreover, a questionnaire was administered throughout the study to assess patient satisfaction. Poisson regression as well as repeated measures ANOVA were used for statistical analysis. RESULTS Fourteen (14) males and 14 females were enrolled and followed-up at 3, 6, and 12 months. All IFCDPs survived (100% survival rate). The most frequent minor complication was the loss of material used to close the screw access hole (20% out of total complications). The most frequent major complication was chipping of the acrylic denture teeth (77.14% out of total complications). Gender (p = 0.008) and bruxism (p = 0.030) were significant predictors for the total major complications (major wear and major chipping) while occlusal scheme was a significant predictor for major chipping events (p = 0.030). CONCLUSIONS While IFCDPs demonstrated high prosthetic survival rates, they also exhibited a high number of chipping events of the acrylic veneering material, especially in males, bruxers, and individuals with canine guidance occlusion. However, the occurrence of these prosthetic complications did not negatively affect patient satisfaction.
Collapse
Affiliation(s)
| | | | - Davide Romeo
- Eastman Institute for Oral Health, University of Rochester, Rochester, NY.,Advanced Oral Surgery Unit, Vita Salute University, San Raffaele Hospital, Milan, Italy
| | - Alexandra Tsigarida
- Department of Periodontology, Eastman Institute for Oral Health, University of Rochester, Rochester, NY
| | - Abdul Basir Barmak
- Eastman Institute for Oral Health, University of Rochester, Rochester, NY
| | | | - Carlo Ercoli
- Department of Periodontology, Eastman Institute for Oral Health, University of Rochester, Rochester, NY
| | - Panos Papaspyridakos
- Department of Periodontology, Eastman Institute for Oral Health, University of Rochester, Rochester, NY.,Department of Prosthodontics, Tufts School of Dental Medicine, Boston, MA
| | - Elli Anna Kotsailidi
- Department of Periodontology, Eastman Institute for Oral Health, University of Rochester, Rochester, NY
| | - Konstantinos Chochlidakis
- Department of Periodontology, Eastman Institute for Oral Health, University of Rochester, Rochester, NY
| |
Collapse
|
5
|
Vulović S, Popovac A, Radunović M, Petrović S, Todorović M, Milić-Lemić A. Microbial adhesion and viability on novel CAD/CAM framework materials for implant-supported hybrid prostheses. Eur J Oral Sci 2023; 131:e12911. [PMID: 36585796 DOI: 10.1111/eos.12911] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 12/15/2022] [Indexed: 01/01/2023]
Abstract
The aim of the study was to investigate the adhesion and viability of Streptococcus oralis and Candida albicans under in vitro conditions on CAD/CAM framework materials for implant-supported hybrid prostheses. Twenty-nine specimens were prepared from each of three different materials: ZR (zirconia), PEEK (polyether ether ketone) and CoCr4 (CoCr4 alloy). The experimental part included surface roughness (SR) and contact angle of water (CAW) measurements, followed by colony forming unit (CFU), cell viability assay and scanning electron microscopy (SEM) analyses of Strep. oralis and C. albicans biofilms on the materials' surfaces. Kruskal-Wallis and one-way analysis of variance (ANOVA) tests were used for differences between materials, and the correlation between measurements was estimated using Spearman's correlation coefficient. PEEK specimens revealed higher SR, CAW and CFU mean values, than ZR and CoCr4 specimens. Strong positive correlation was found between SR and CFU and between CAW and CFU for both microbial species. Cell viability assay revealed similar values for both species across materials. Higher numbers of Strep. oralis and C. albicans on PEEK specimens confirm the impact of the higher surface roughness and contact angle values on the microbial adhesion and describes PEEK as less desirable than ZR and CoCr4 from microbiological aspect.
Collapse
Affiliation(s)
- Stefan Vulović
- School of Dental Medicine, Department of Prosthodontics, University of Belgrade, Belgrade, Serbia
| | - Aleksandra Popovac
- School of Dental Medicine, Department of Prosthodontics, University of Belgrade, Belgrade, Serbia
| | - Milena Radunović
- School of Dental Medicine, Department of Microbiology and Immunology, University of Belgrade, Belgrade, Serbia
| | - Sanja Petrović
- School of Dental Medicine, Department of Microbiology and Immunology, University of Belgrade, Belgrade, Serbia
| | - Miloš Todorović
- School of Dental Medicine, Department of Pediatric and Preventive Dentistry, University of Belgrade, Belgrade, Serbia
| | - Aleksandra Milić-Lemić
- School of Dental Medicine, Department of Prosthodontics, University of Belgrade, Belgrade, Serbia
| |
Collapse
|
6
|
Rozov RA, Trezubov VN, Gerasimov AB, Azarin GS. [A prospective single-cohort study of implant-supported full-arch metal-ceramic prosthesis with gold-platinum alloy framework for treatment edentulous mandible in elderly patients: 15-year report]. STOMATOLOGIIA 2023; 102:22-27. [PMID: 37997309 DOI: 10.17116/stomat202310206122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2023]
Abstract
OBJECTIVE To study the effectiveness of implant-supported full-arch metal-ceramic prosthesis with gold-platinum alloy framework in elderly patients. MATERIALS AND METHODS The study included patients with complete and/or partial loss of teeth and terminal dentition. In 2007-2008, 354 implants were inserted in 27 patients. The age of the patients was 61.31±5.08 years. Mombelli index criteria (mBI [modified Sulcus Bleeding Index]) were used. The plaque index was determined using a modified Löe & Silness method. The state of the peri-implant bone (ΔMBL) was determined by a series of OPG. The Geriatric Oral Health Index (GOHAI) was used to assess oral health in the elderly. RESULTS Metal-ceramic full-arch implant prostheses with a gold-platinum alloy framework, based on a sufficient and optimal number of implants (6-8), showed high survival rate (100%) after 15 years. Marginal bone loss (ΔMBL) after 15 years was -1.44±1.27 mm. The survival rate of implants was 99.4%. Scores on the GOHAI scale were higher in patients after orthopedic rehabilitation (from 52.7±7.1 to 54.1±8.4, p<0.001). CONCLUSION After 15 years, all prostheses had mechanical defects, which at the same time allowed them to be used without restrictions. Screw fixation of full-arch implant prostheses, although it was associated with mechanical complications, nevertheless made it possible to perform surgical interventions in a timely manner and stop the development of inflammatory complications. Thus, we do not see any grounds for removing metal-ceramic prostheses and replacing them with new implant prostheses even after a 15-year period of operation. At the same time, it is necessary to take into account the reduction in the possibility of individual oral hygiene in elderly patients, as well as possible restrictions on self-visiting a dentist or dental hygienist.
Collapse
Affiliation(s)
- R A Rozov
- Academician I.P. Pavlov First St. Petersburg State Medical University of the Ministry of Healthcare of Russian Federation, St. Petersburg, Russia
- «City Dental Clinic No. 33», St. Petersburg, Russia
| | - V N Trezubov
- Academician I.P. Pavlov First St. Petersburg State Medical University of the Ministry of Healthcare of Russian Federation, St. Petersburg, Russia
| | | | - G S Azarin
- «City Dental Clinic No. 33», St. Petersburg, Russia
| |
Collapse
|
7
|
Laventure A, Lauwers L, Nicot R, Kyheng M, Ferri J, Raoul G. Autogenous bone grafting with conventional implants vs zygomatic implants for atrophic maxillae: a retrospective study of the oral health-related quality of life. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2022; 123:e782-e789. [PMID: 35817319 DOI: 10.1016/j.jormas.2022.06.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 06/19/2022] [Accepted: 06/20/2022] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Autogenous bone grafting (ABG)-combined or not with Le Fort I osteotomy (LFIO)-and zygomatic implants (ZI) are two reliable techniques for the fixed rehabilitation of atrophic maxillae. ZI allow a reduced treatment duration with no need to graft, immediate loading and in principle less morbidity. The aim of this retrospective study was to compare these two protocols on oral health-related quality of life (OHRQoL). We also discussed implant and prosthetic survival rates, and biological complications. MATERIAL AND METHODS All patients who benefited from ZI or ABG with conventional implants (CI) for a fixed maxillary rehabilitation, from November 2011 to April 2019, were included: 21 patients in the ABG group and 22 in the ZI group. OHRQoL was evaluated postoperatively by OHIP-14 questionnaire. RESULTS OHIP-14 median scores were respectively 6.5 (interquartile range [IQR] 2.0-13.0) and 6.0 (IQR 3.0-10.0) without significant difference (p = 0.97). Implant/prosthetic survival rates were 97.9%/100% and 97.1%/95.5%. Biological complications rates were 33.3% and 36.4% without significant difference (p = 0.83). DISCUSSION The type of surgery or prosthesis does not seem to affect final OHRQoL, implant and prosthetic survival rates or biological complications rates.
Collapse
Affiliation(s)
- Alexandre Laventure
- University of Lille, F-59000 Lille, France; Department of oral and maxillofacial surgery, Roger Salengro hospital, Lille university hospital, Boulevard du Professeur Émile Laine, F-59000 Lille, France.
| | - Ludovic Lauwers
- University of Lille, F-59000 Lille, France; Department of oral and maxillofacial surgery, Roger Salengro hospital, Lille university hospital, Boulevard du Professeur Émile Laine, F-59000 Lille, France; University of Lille, Lille university hospital, ULR 2694 - METRICS: évaluation des technologies de santé et des pratiques médicales, F-59000 Lille, France
| | - Romain Nicot
- University of Lille, F-59000 Lille, France; Department of oral and maxillofacial surgery, Roger Salengro hospital, Lille university hospital, Boulevard du Professeur Émile Laine, F-59000 Lille, France; Inserm, U1008, Controlled Drug Delivery Systems and Biomaterials, F-59000 Lille, France
| | - Maéva Kyheng
- University of Lille, F-59000 Lille, France; University of Lille, Lille university hospital, ULR 2694 - METRICS: évaluation des technologies de santé et des pratiques médicales, F-59000 Lille, France; Lille university hospital, department of biostatistics, F-59000 Lille, France
| | - Joël Ferri
- University of Lille, F-59000 Lille, France; Department of oral and maxillofacial surgery, Roger Salengro hospital, Lille university hospital, Boulevard du Professeur Émile Laine, F-59000 Lille, France; Inserm, U1008, Controlled Drug Delivery Systems and Biomaterials, F-59000 Lille, France
| | - Gwénaël Raoul
- University of Lille, F-59000 Lille, France; Department of oral and maxillofacial surgery, Roger Salengro hospital, Lille university hospital, Boulevard du Professeur Émile Laine, F-59000 Lille, France; Inserm, U1008, Controlled Drug Delivery Systems and Biomaterials, F-59000 Lille, France
| |
Collapse
|
8
|
Newaskar PS, Sonkesriya S, Singh R, Palekar U, Bagde H, Dhopte A. Evaluation and Comparison of Five-Year Survival of Tooth-Supported Porcelain Fused to Metal and All-Ceramic Multiple Unit Fixed Prostheses: A Systematic Review. Cureus 2022; 14:e30338. [PMID: 36407172 PMCID: PMC9663878 DOI: 10.7759/cureus.30338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 10/10/2022] [Indexed: 06/16/2023] Open
Abstract
The prosthesis must have good survival despite being functional for at least 5-10 years. This makes sure that the replacement of missing teeth does not become a repeated expense. Of 579 identified articles, 15 met the inclusion criteria for systematic review. Missing teeth replacement materials are divided into two groups: porcelain fused to metal and all ceramics. Data related to survival rates as well as the most common mode of failure is observed from both groups. It was observed that porcelain fused to metal prostheses had an approximately 99.5% survival rate and an approximately 92% survival rate for all-ceramic tooth-supported prostheses after five years of insertion. Porcelain-fused-to-metal (PFM) prostheses had a better survival rate after five years of insertion as compared to all-ceramic prostheses. Porcelain fused to metal should be the treatment of choice for dentists and patients when missing teeth need to be fixed.
Collapse
Affiliation(s)
- Prabha Shakya Newaskar
- Department of Prosthodontics, Rural Dental College, Pravara Institute of Medical Sciences - Deemed University (PIMS-DU), Loni, IND
| | - Subhash Sonkesriya
- Department of Prosthodontics, Government Dental College and Hospital, Indore, IND
| | - Rashmi Singh
- Department of Prosthodontics, Mansarovar Dental College, Hospital and Research Centre, Bhopal, IND
| | - Umesh Palekar
- Department of Prosthodontics, Rural Dental College, Pravara Institute of Medical Sciences - Deemed University (PIMS-DU), Loni, IND
| | - Hiroj Bagde
- Periodontology, Rama Dental College and Research Centre, Kanpur, IND
| | - Ashwini Dhopte
- Oral Medicine and Radiology, Rama Dental College and Research Centre, Kanpur, IND
| |
Collapse
|
9
|
Wang J, Wu P, Liu HL, Zhang L, Liu LP, Ma CF, Chen JH. Polyetheretherketone versus titanium CAD-CAM framework for implant-supported fixed complete dentures: a retrospective study with up to 5-year follow-up. J Prosthodont Res 2021; 66:279-287. [PMID: 34588401 DOI: 10.2186/jpr.jpr_d_20_00142] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
PURPOSE To evaluate the performance of polyetheretherketone (PEEK) versus titanium computer-aided designed and manufactured (CAD-CAM) framework for implant-supported fixed complete dentures (ISFCDs) with a follow-up for a duration of up to 5 years. METHODS Consecutively edentulous patients who underwent ISFCDs with a PEEK framework or titanium framework at one dental specialist center were included in this retrospective study. Implant/prosthesis survival rates, mechanical/biological complications, and bone and soft tissue parameters were analyzed. Overall survival was analyzed using Kaplan-Meier survival curves and the log-rank test. RESULTS Sixty ISFCDs (29 PEEK, 31 titanium) performed on 43 edentulous patients (331 implants) were included. An implant survival rate of 100% was obtained. There was no significant difference in the cumulative prosthesis survival rate between the PEEK (93.1%) and titanium groups (93.5%). The most common mechanical complications were fracture of the artificial veneer in both the PEEK (13.8%) and titanium (16.7%) groups. Bruxers had a higher prevalence of mechanical complications than non-bruxers (p<0.05). The biological complications included bleeding upon probing (13.8% for the PEEK group; 16.1% for the titanium group), soft tissue inflammation (3.4% for the PEEK group; 3.2% for the titanium group), and temporomandibular disorders (6.5% for the titanium group). The vertical bone loss was significantly lower in the PEEK group (0.70 mm) than in the titanium group (0.96 mm). Smokers had a significantly higher prevalence of biological complications than non-smokers. CONCLUSIONS Within the limitations of this study, ISFCDs with PEEK frameworks can provide good prognosis for edentulous patients, still requiring longer-term validation.
Collapse
Affiliation(s)
- Jing Wang
- National Clinical Research Center for Oral Diseases and State Key Laboratory of Military Stomatology and Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China.,Key Laboratory of Shaanxi Province for Craniofacial Precision Medical Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Peng Wu
- Department of Stomatology, Peking University People's Hospital, Beijing, China
| | | | - Ling Zhang
- National Clinical Research Center for Oral Diseases and State Key Laboratory of Military Stomatology and Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Li-Peng Liu
- National Clinical Research Center for Oral Diseases and State Key Laboratory of Military Stomatology and Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Chu-Fan Ma
- National Clinical Research Center for Oral Diseases and State Key Laboratory of Military Stomatology and Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China.,Air Force Medical Center, The Fourth Military Medical University, Beijing, China
| | - Ji-Hua Chen
- National Clinical Research Center for Oral Diseases and State Key Laboratory of Military Stomatology and Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| |
Collapse
|
10
|
Lopes A, de Araújo Nobre M, Ferro A, Moura Guedes C, Almeida R, Nunes M. Zygomatic Implants Placed in Immediate Function through Extra-Maxillary Surgical Technique and 45 to 60 Degrees Angulated Abutments for Full-Arch Rehabilitation of Extremely Atrophic Maxillae: Short-Term Outcome of a Retrospective Cohort. J Clin Med 2021; 10:jcm10163600. [PMID: 34441896 PMCID: PMC8397045 DOI: 10.3390/jcm10163600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 08/11/2021] [Accepted: 08/14/2021] [Indexed: 11/25/2022] Open
Abstract
The use of new devices for the rehabilitation of the severely atrophic maxillae needs validation. We aimed to report the short-term outcome of severely atrophic jaws rehabilitated with zygomatic implants with no implant head angulation placed extramaxillary in conjunction with standard implants. Forty-four patients were consecutively included with 77 zygomatic implants (31 abutments of 45 degrees and 46 abutments of 60 degrees) and 115 standard implants. Outcome measures were prosthetic survival, implant/abutment success, complications, modified plaque index (mPLI), modified bleeding index (mBI), mucosal seal efficacy evaluation (MSEE) >4 mm, and Zygomatic implants classification level (ZICL). Two patients (4.5%) were lost to follow-up. No prosthesis was lost; one patient lost one zygomatic implant; two angulated abutments of 60 degrees needed to be replaced in one patient due to an aesthetic complaint; rendering a cumulative success rate at 2-years of 95.3% and 95.9% using patient and implant/abutment as unit of analysis, respectively. Mechanical and biological complications occurred in 13 and six patients, respectively; all resolved. The median mPLI and mBI was 1; MSEE > 4 mm occurred in 17% and 21% of patients at 1- and 2-years, respectively; ZICL1 was registered in 80% of patients. The current protocol enabled good short-term outcomes.
Collapse
Affiliation(s)
- Armando Lopes
- Oral Surgery Department, Maló Clinic, Avenida dos Combatentes, 43, Piso 9, 1600-042 Lisboa, Portugal; (A.L.); (A.F.); (M.N.)
| | - Miguel de Araújo Nobre
- Research, Development and Education Department, Maló Clinic, Avenida dos Combatentes, 43, Piso 11, 1600-042 Lisboa, Portugal
- Correspondence: ; Tel.: +351-93-218-5661
| | - Ana Ferro
- Oral Surgery Department, Maló Clinic, Avenida dos Combatentes, 43, Piso 9, 1600-042 Lisboa, Portugal; (A.L.); (A.F.); (M.N.)
| | - Carlos Moura Guedes
- Prosthodontics Department, Maló Clinic, Avenida dos Combatentes, 43, Piso 10, 1600-042 Lisboa, Portugal; (C.M.G.); (R.A.)
| | - Ricardo Almeida
- Prosthodontics Department, Maló Clinic, Avenida dos Combatentes, 43, Piso 10, 1600-042 Lisboa, Portugal; (C.M.G.); (R.A.)
| | - Mariana Nunes
- Oral Surgery Department, Maló Clinic, Avenida dos Combatentes, 43, Piso 9, 1600-042 Lisboa, Portugal; (A.L.); (A.F.); (M.N.)
| |
Collapse
|
11
|
Haroun F, Ozan O. Evaluation of Stresses on Implant, Bone, and Restorative Materials Caused by Different Opposing Arch Materials in Hybrid Prosthetic Restorations Using the All-on-4 Technique. MATERIALS 2021; 14:ma14154308. [PMID: 34361502 PMCID: PMC8348490 DOI: 10.3390/ma14154308] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 07/17/2021] [Accepted: 07/28/2021] [Indexed: 12/17/2022]
Abstract
The long-term success of dental implants is greatly influenced by the use of appropriate materials while applying the “All-on-4” concept in the edentulous jaw. This study aims to evaluate the stress distribution in the “All-on-4” prosthesis across different material combinations using three-dimensional finite element analysis (FEA) and to evaluate which opposing arch material has destructive effects on which prosthetic material while offering certain recommendations to clinicians accordingly. Acrylic and ceramic-based hybrid prosthesis have been modelled on a rehabilitated maxilla using the “All-on-4” protocol. Using different materials and different supports in the opposing arch (natural tooth, and implant/ceramic, and acrylic), a multi-vectorial load has been applied. To measure stresses in bone, maximum and minimum principal stress values were calculated, while Von Mises stress values were obtained for prosthetic materials. Within a single group, the use of an acrylic implant-supported prosthesis as an antagonist to a full arch implant-supported prosthesis yielded lower maximum (Pmax) and minimum (Pmin) principal stresses in cortical bone. Between different groups, maxillary prosthesis with polyetheretherketone as framework material showed the lowest stress values among other maxillary prostheses. The use of rigid materials with higher moduli of elasticity may transfer higher stresses to the peri implant bone. Thus, the use of more flexible materials such as acrylic and polyetheretherketone could result in lower stresses, especially upon atrophic bones.
Collapse
Affiliation(s)
- Feras Haroun
- Correspondence: ; Tel.: +90-548-828-66-79 or +90-542-888-99-90 or +965-97170419
| | | |
Collapse
|
12
|
Framework Materials for Full-Arch Implant-Supported Rehabilitations: A Systematic Review of Clinical Studies. MATERIALS 2021; 14:ma14123251. [PMID: 34204681 PMCID: PMC8231547 DOI: 10.3390/ma14123251] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/03/2021] [Accepted: 06/08/2021] [Indexed: 12/24/2022]
Abstract
The purpose of this systematic review was to investigate the clinical outcomes of frameworks made of different materials in patients with implant-supported full-arch prostheses. A literature search was conducted on MEDLINE, Scopus and Cochrane Library, until the 1st of March 2021, with the following search terms: framework or substructure combined with "dental implants". The outcomes evaluated were: implant and prosthesis survival, bone resorption, biological and technical complications. The Cochrane Handbook for Systematic Reviews of Interventions was employed to assess the risk of bias in randomized clinical trials. The Newcastle-Ottawa quality assessment scale was used for non-randomized studies. In total, 924 records were evaluated for title and abstract, and 11 studies were included in the review: 4 clinical randomized trials and 7 cohort studies. The framework materials investigated were: gold alloy, titanium, silver-palladium alloy, zirconia and polymers including acrylic resin and carbon-fiber-reinforced composites. High implant and prosthetic cumulative survival rates were recorded by all included studies. Various materials and different fabrication techniques are now available as alternatives to traditional cast metal frameworks, for full-arch implant-supported rehabilitations. Further long-term studies are needed to validate the use of these materials and clarify their specific clinical indications and manufacturing protocols to optimize their clinical outcomes.
Collapse
|
13
|
Maiti S, Ponnanna AA, Rai N, Jessy P. Three-dimensional–printed malo bridge: Digital Fixed prosthesis for the partially edentulous maxilla. Contemp Clin Dent 2021; 12:451-453. [PMID: 35068849 PMCID: PMC8740785 DOI: 10.4103/ccd.ccd_456_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 07/17/2020] [Accepted: 02/03/2021] [Indexed: 11/04/2022] Open
Abstract
Screw-retained implant restorations have an advantage of predictable retention, retrievability, and lack of potentially retained subgingival cement. However, a few disadvantages exist such as need for precise placement of the implant for optimal and esthetic location of the screw access hole and obtaining passive fit. Malo bridge with customization of abutment can establish a precise patient's gingival architecture. It is the most esthetically advanced form of fixed prosthodontic rehabilitation for complete and partially edentulous patients. This prosthesis is combined with three-dimensional (3D)–printed computer-aided design and computer-aided manufacturing technology to gain the precise fit and added esthetics. It also has advantages such as elimination of screw access openings, makes it possible to remove and repair the fractured porcelain of the individual crown without removing the whole structure, excellent precision, avoids casting errors, light weight, reduced complexity of laboratory procedures, high definition of morphology, and time-consuming. This case report presents replacement of partially edentulous maxilla using 3D-printed Malo bridge.
Collapse
|
14
|
Alqurashi H, Khurshid Z, Syed AUY, Rashid Habib S, Rokaya D, Zafar MS. Polyetherketoneketone (PEKK): An emerging biomaterial for oral implants and dental prostheses. J Adv Res 2020; 28:87-95. [PMID: 33384878 PMCID: PMC7770505 DOI: 10.1016/j.jare.2020.09.004] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/29/2020] [Accepted: 09/08/2020] [Indexed: 12/16/2022] Open
Abstract
Polyetherketoneketone (PEKK) is a new evolving polymeric material. The present article comprehensively reviewed an overview of various applications of PEKK in prosthodontics and oral implantology, highlighting its prospects for clinical applications. PEKK biomaterials is an elastic material with good shock absorbance and fracture resistance and present ultra-high performance among all thermoplastic composites for excellent mechanical strength, chemical resistance, and high thermal stability. Available articles on PEKK for dental applications were reviewed from January 1957 to August 2020) using MEDLINE/PubMed, Web of Science, and ScienceDirect resources. PEKK presents suitable physical, mechanical, and chemical properties for applications in prosthodontics and oral implantology. PEKK has good potential for a wide range of dental applications, including tooth restorations, crowns, bridge, endoposts, denture framework, implant-supported fixed prosthesis, and dental implants. PEKK dental implants have shown lesser stress shielding compared to titanium for dental implant applications. Further modifications and improving material properties can result in broader applications in the field of dentistry. Long term evaluations are needed as PEKK is recently applied in dentistry, and there are limited studies published on PEKK.
Collapse
Affiliation(s)
- Hatim Alqurashi
- School of Clinical Dentistry, University of Sheffield, United Kingdom.,Department of Preventive Dental Sciences, School of Dentistry, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Zohaib Khurshid
- Department of Prosthodontics and Dental Implantology, College of Dentistry, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Azeem Ul Yaqin Syed
- Department of Prosthodontics and Dental Implantology, College of Dentistry, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Syed Rashid Habib
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia
| | - Dinesh Rokaya
- Department of Clinical Dentistry, Walailak University International College of Dentistry, Bangkok 10400, Thailand
| | - Muhammad Sohail Zafar
- Department of Restorative Dentistry, College of Dentistry, Taibah University, Madinah Al Munawwarah, Saudi Arabia.,Department of Dental Materials, Islamic International Dental College, Riphah International University, Islamabad 44000, Pakistan
| |
Collapse
|
15
|
Surface Characteristics and Color Stability of Gingiva-Colored Resin Composites. MATERIALS 2020; 13:ma13112540. [PMID: 32503174 PMCID: PMC7321486 DOI: 10.3390/ma13112540] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 05/10/2020] [Accepted: 06/01/2020] [Indexed: 11/30/2022]
Abstract
The purpose of this study was to investigate the surface characteristics and color stability of gingiva-colored composite restorative materials (Anaxgum—ANG, Ceramage—CMG and Gradia Gum—GRG). The microstructure, composition, degree of conversion (DC %) and 3D roughness (Sa, Sz, Sdr, Sc) were examined by LV-SEM/EDS, ATR-FTIR and optical profilometry, respectively. For the color stability (CIE L*, a*, b* system) and hardness (HV), measurements were performed at baseline and after 30 days storage in distilled water, coffee and red wine. The ANG and GRG contain prepolymerized particles in aromatic and aliphatic resin matrices, respectively, whereas CMG contains inorganic zirconia silicate/silica particles, in an aromatic resin matrix, with a smaller particle size and a higher surface area fraction. Urethane monomers were mainly identified in CMG and GRG. The DC% showed statistically insignificant differences between the materials. The same applied for the roughness parameters, except for the greatest Sdr in CMG. ANG showed a color difference (ΔE) of > 3.3 after immersion in all media, CMG in coffee and wine and GRG only in coffee. Sc was the only roughness parameter demonstrating correlations with the ΔL*, Δb* and ΔE*. The HV values showed insignificant differences between the storage conditions per material. There are important differences in the color stability of the materials tested, which were mostly affected by the roughness parameters due to variations in their microstructure.
Collapse
|
16
|
Papaspyridakos P, Chochlidakis K, Kang K, Chen Y, Alghfeli A, Kudara Y, Weber H. Digital Workflow for Implant Rehabilitation with Double Full‐Arch Monolithic Zirconia Prostheses. J Prosthodont 2020; 29:460-465. [DOI: 10.1111/jopr.13166] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 03/14/2020] [Accepted: 03/16/2020] [Indexed: 11/30/2022] Open
Affiliation(s)
- Panos Papaspyridakos
- Department of ProsthodonticsTufts University School of Dental Medicine Boston MA
- Department of ProsthodonticsUniversity of Rochester Eastman Institute for Oral Health Rochester NY
| | | | - Kiho Kang
- Department of ProsthodonticsTufts University School of Dental Medicine Boston MA
| | - Yo‐wei Chen
- Department of ProsthodonticsTufts University School of Dental Medicine Boston MA
| | - Abdulla Alghfeli
- Department of ProsthodonticsTufts University School of Dental Medicine Boston MA
| | - Yukio Kudara
- Department of ProsthodonticsTufts University School of Dental Medicine Boston MA
| | - Hans‐Peter Weber
- Department of ProsthodonticsTufts University School of Dental Medicine Boston MA
| |
Collapse
|
17
|
Sarkar N, Bose S. Controlled Delivery of Curcumin and Vitamin K2 from Hydroxyapatite-Coated Titanium Implant for Enhanced in Vitro Chemoprevention, Osteogenesis, and in Vivo Osseointegration. ACS APPLIED MATERIALS & INTERFACES 2020; 12:13644-13656. [PMID: 32013377 PMCID: PMC8015417 DOI: 10.1021/acsami.9b22474] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Successful repair of critical-sized tumor-resection defects, especially in load-bearing bones, still remains a major challenge in clinical orthopedics. Titanium (Ti) implants have been increasingly used in the past few decades because of titanium's suitable mechanical properties and biocompatibility; however, it shows insufficient integration with the surrounding bone. In this study, the plasma spray technique is utilized to form homogeneous hydroxyapatite (HA) coating on the surface of the Ti implant to enhance osseointegration at the tissue-implant interface. These coated implants are loaded with curcumin and vitamin K2 to introduce chemopreventive and osteogenesis ability via controlled release of these biomolecules. The synergistic effect of these two biomolecules showed enhanced in vitro osteoblast (hFOB) cell attachment and proliferation for 11 days. Moreover, these biomolecules showed lower in vitro osteosarcoma (MG-63) cell proliferation after 3, 7, and 11 days. An in vivo study was carried out to evaluate the bone bonded zone in a rat distal femur model at an early wound healing stage of 5 days. Modified Masson Goldner staining of the tissue-implant section showed improved contact between tissue and implant in dual drug-loaded HA-coated Ti implants compared to control implants. This work presents a successful fabrication of a mechanically competent functional Ti implant with the advantages of enhanced in vitro osteoblast proliferation, osteosarcoma inhibition, and in vivo osseointegration, indicating the potential for load-bearing bone-defect repair after tumor resection.
Collapse
Affiliation(s)
- Naboneeta Sarkar
- W. M. Keck Biomedical Materials Research Laboratory School of Mechanical and Materials Engineering Washington State University Pullman, Washington 99164, United States
| | - Susmita Bose
- W. M. Keck Biomedical Materials Research Laboratory School of Mechanical and Materials Engineering Washington State University Pullman, Washington 99164, United States
| |
Collapse
|
18
|
Shah K, Lee DJ. Fabricating a screw-retained, complete arch, fixed implant prosthesis using selective metal laser sintering: A clinical report. J Prosthet Dent 2020; 123:373-378. [PMID: 31307806 DOI: 10.1016/j.prosdent.2019.01.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2018] [Revised: 01/04/2019] [Accepted: 01/04/2019] [Indexed: 12/17/2022]
Abstract
In contemporary prosthodontic practice, implant-supported therapy has consistently resulted in high success rates, with satisfactory and predictable outcomes for completely edentulous patients. Of the several options, complete-arch, fixed screw-retained solutions are generally considered to be the preferred treatment solution. Screw retention offers advantages such as predictable retrievability and potentially easy prosthodontic maintenance, as well as excess cement not being a concern. However, implant mispositioning and malalignment may often necessitate the use of cement-retained prostheses. This clinical report describes a method of fabricating a complete-arch, implant screw-retained, double framework metal-ceramic prosthesis, despite the unfavorable implant positioning, by using selective direct metal laser sintering technology.
Collapse
Affiliation(s)
- Karnik Shah
- Private practice, Austin, Texas; Former Resident, Advanced Prosthodontics Program, Division of Restorative Sciences and Prosthodontics, The Ohio State University College of Dentistry, Columbus, Ohio.
| | - Damian J Lee
- Director and Assistant Professor, Advanced Prosthodontics Program, Division of Restorative Sciences and Prosthodontics, The Ohio State University College of Dentistry, Columbus, Ohio
| |
Collapse
|
19
|
Papaspyridakos P, Bordin TB, Kim YJ, El-Rafie K, Pagni SE, Natto ZS, Teixeira ER, Chochlidakis K, Weber HP. Technical Complications and Prosthesis Survival Rates with Implant-Supported Fixed Complete Dental Prostheses: A Retrospective Study with 1- to 12-Year Follow-Up. J Prosthodont 2019; 29:3-11. [PMID: 31650669 DOI: 10.1111/jopr.13119] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/07/2019] [Indexed: 11/27/2022] Open
Abstract
PURPOSE To report the rate of technical complications and prosthesis survival in a cohort of edentulous patients treated with implant-supported fixed complete dental prostheses (IFCDPs) after a mean observation period of at least 1 year. MATERIALS AND METHODS The single-visit examination included clinical and radiographic assessment, occlusal analysis, photographs and questionnaire assessing patient satisfaction in a cohort of 52 patients rehabilitated with 71 IFCDPs (supported by 457 implants). The IFCDPs were assessed for technical complications, number of implants and cantilever extension, retention type and prosthetic material type. Comparison was made between ceramic IFCDPs (Group 1) and metal-resin IFCDPs (Group 2). Kaplan-Meier survival curve analysis was carried out for assessment of prosthesis survival and was done for both Groups 1 and 2 separately. The Cox proportional hazard model was used for survival analysis, adjusting for a number of potential confounders, to evaluate the association between prosthesis survival and several risk factors such as type of opposing occlusion, nightguard use, and presence of bruxism. Responses to patient satisfaction questions were compared with Fisher's exact test. RESULTS Out of 71 edentulous arches (52 patients) restored with IFCDPs, 6 IFCDPs had failed, yielding a cumulative prosthesis survival rate of 91.6 % after a mean observation period of 5.2 years (range: 1-12 years) after definitive prosthesis insertion. Three IFCDPs were lost due to implant failures after 5.8 to 11 years of functional loading. Additionally, 3 metal-resin IFCDPs failed due to technical complications. Minor complications were the most frequent complications observed, namely wear of the prosthetic material (9.8% annual rate) being the most common, followed by decementation of cement-retained IFCDPs (2.9%), and loss of the screw access filing material of the screw-retained IFCDPs (2.7%). The most frequently observed major complication was fracture of the prosthetic material (1.9% annual rate), followed by fracture of occlusal screw (0.3%), and fracture of framework (0.3%). The annual rate of wear of prosthetic material was 7.3% for porcelain IFCDPs (n = 19/55) and 19.4% for metal-resin IFCDPs (n = 13/16), yielding a statistically significant difference between the 2 groups (p = 0.01). CONCLUSIONS After a mean exposure time of 5.2 years, 91.6% prosthesis survival rates were achieved (65 out of 71 IFCDPs). The most frequent minor technical complication was wear of the prosthetic material with estimated 5-year rate of 49.0%, while the most frequent major complication was fracture of the prosthetic material with estimated 5-year dental unit-based rate of 9.5%. The cumulative rates for "prosthesis free of minor complications" at 5- and 10-years were 60.5% (95% CI: 47.2-71.3%) and 8.9% (95% CI: 2.9-18.0%), respectively. The cumulative rates for "prosthesis free of major technical complications" at 5- and 10-years were 85.5% (95% CI: 73.0-92.5%) and 30.1% (95% CI: 12.0-50.6%), respectively. Presence of bruxism, and absence of a nightguard were associated with increased risk for chipping of the prosthetic material of the IFCDPs.
Collapse
Affiliation(s)
- Panos Papaspyridakos
- Division of Postgraduate Prosthodontics, Tufts University School of Dental Medicine, Boston, MA, USA.,Department of Prosthodontics, University of Rochester Eastman Institute for Oral Health, Rochester, NY, USA
| | - Thaisa Barizan Bordin
- Department of Prosthodontics, Tufts University School of Dental Medicine, Boston, MA, USA.,Department of Prosthodontics, Postgraduate Program in Dentistry, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Yong-Jeong Kim
- Division of Postgraduate Prosthodontics, Tufts University School of Dental Medicine, Boston, MA, USA
| | - Khaled El-Rafie
- Division of Postgraduate Prosthodontics, Tufts University School of Dental Medicine, Boston, MA, USA
| | - Sarah E Pagni
- Department of Public Health and Community Service, Tufts University School of Dental Medicine, Boston, MA, USA
| | - Zuhair S Natto
- Department of Dental Public Health, King Abdulaziz University, Jeddah, Saudi Arabia.,Department of Periodontology, Tufts University School of Dental Medicine, Boston, MA, USA
| | - Eduardo Rolim Teixeira
- Department of Prosthodontics, Postgraduate Program in Dentistry, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Konstantinos Chochlidakis
- Department of Prosthodontics, University of Rochester Eastman Institute for Oral Health, Rochester, NY, USA
| | - Hans-Peter Weber
- Department of Prosthodontics, Tufts University School of Dental Medicine, Boston, MA, USA
| |
Collapse
|
20
|
Using Er:YAG laser to remove lithium disilicate crowns from zirconia implant abutments: An in vitro study. PLoS One 2019; 14:e0223924. [PMID: 31689289 PMCID: PMC6830778 DOI: 10.1371/journal.pone.0223924] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 10/01/2019] [Indexed: 01/04/2023] Open
Abstract
Background When implants are restored with cement-retained restorations, prosthetic retrievability can be difficult and often requires sectioning using rotary instruments. Sometimes repeated removals of a cement-retained implant crown are needed such as for treatment of peri-implantitis or immediate implant provisionalization. The purpose of this study was to evaluate the effect of erbium-doped yttrium aluminum garnet (Er:YAG) laser as a non-invasive treatment modality to remove lithium disilicate crowns from zirconia implant abutments following long-term cementation, repetitive debonding and re-cementation, and short-term retrieval. Material and methods Twenty identical lithium disilicate crowns were cemented onto zirconia prefabricated abutments using composite resin cement. Ten cemented crowns were removed at 48 hours after cementation as a short-term group (ST), while another 10 were removed 6 months after cementation as a long-term group (LT). To mimicking repetitive recementation and retrieval, the LT crowns were then recemented and removed after 48 hours as a long-term recemention (LTR) group. The LTR crowns were then again recemented and removed after 48 hours as a long-term repeated recemention (LTRR) group. Er:YAG laser was used to facilitate the retrieval of these crowns. recorded and analyzed using ANOVA and t-test. The surfaces of the crown and the abutment were further examined using light microscopy and scanning electron microscopy (SEM). Temperature changes of the abutment and crown upto 10 minutes were also measured and statistically analyzed (paired t-test). Results The average times of crown removal from zirconia abutments were 4 minutes (min) and 42 second (sec) in LT to 3 min 24 sec in LTR, and 3 min 12 sec in LTRR and ST groups. LTR took the longest time to remove, statistically (ANOVA and t-test, p < .001). No statistical differences were observed among the removal times of LTR, LTRR, and ST groups (t-test, p = .246, .246 and 1). SEM examination of the material surface showed no visual surface damaging from treatment with Er:YAG laser. The temperatures during irradiation ranged from 18.4°C to 20°C and 22.2°C to 24.5°C (Paired t-test, p < .0001) for the abutment and the crown during irradiation from 1 min to 10 mins. Conclusions Long-term cementation can increase time in lithium disilicate crown removal from zirconia abutment using Er:YAG. Er:YAG laser is a non-invasive tool to remove cement-retained implant prostheses and should be considered as a viable alternative to rotary instruments.
Collapse
|
21
|
Effect of framework material on the color of implant-supported complete-arch fixed dental prostheses. J Prosthet Dent 2019; 122:69-75. [DOI: 10.1016/j.prosdent.2018.11.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Revised: 11/22/2018] [Accepted: 11/26/2018] [Indexed: 11/17/2022]
|
22
|
Papaspyridakos P, Bordin TB, Natto ZS, El-Rafie K, Pagni SE, Chochlidakis K, Ercoli C, Weber HP. Complications and survival rates of 55 metal-ceramic implant-supported fixed complete-arch prostheses: A cohort study with mean 5-year follow-up. J Prosthet Dent 2019; 122:441-449. [PMID: 30982622 DOI: 10.1016/j.prosdent.2019.01.022] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 01/23/2019] [Accepted: 01/23/2019] [Indexed: 12/20/2022]
Abstract
STATEMENT OF PROBLEM Long-term outcomes with metal-ceramic (MC) implant-supported fixed complete dental prostheses (IFCDPs) are scarce. PURPOSE The purpose of this retrospective study was to assess the rate of biologic and technical complications in a cohort of edentulous patients treated with MC IFCDPs by residents after a mean clinical follow-up of 5 years (range: 1 to 12 years). MATERIAL AND METHODS Forty-one participants with 55 MC IFCDPs underwent a single-visit comprehensive examination that included a medical and dental history review and clinical and radiographic examinations. All supporting implants and prostheses were examined for biologic and technical complications. Life table analysis and Kaplan-Meier survival curves were calculated. RESULTS Of 359 moderately rough surface dental implants, 2 had failed in 1 patient after 11 years of functional loading, yielding a cumulative implant survival rate of 99.4%. Owing to the implant failure, 1 of 55 edentulous arches restored with IFCDPs failed, yielding a cumulative prosthesis survival rate of 98.2% after mean observation period of 5.0 years. Soft tissue recession was the most frequent minor biologic complication (annual rate 7.8% at the prosthesis level) for both cement and screw-retained IFCDPs (group C and S), and peri-implantitis (annual rate 1.6% at the implant level) the most frequent major biologic complication. Wear of porcelain (annual rate 8.0% at the prosthesis level) was the most frequent minor technical complication for both groups, and fracture of porcelain (annual rate 0.8% at the dental-unit level) was the most frequent major technical complication. Minor complications were the most frequent in both the groups (cement and screw retained). CONCLUSIONS High implant and prosthesis survival rates (above 98%) were achieved, yet substantial complication rates were encountered. The most frequent major biologic complication was peri-implantitis, with a 5-year implant-based rate of 8% (95% confidence interval [CI]: 5.8-11.1), whereas the most frequent major complication was fracture of porcelain with a 5-year dental unit-based rate of 4%. The estimated cumulative rates for "prosthesis free of biologic complications" were 50.4% (95% CI: 36.4% to 63.0%) at 5 years and 10.1% (95% CI: 3.5% to 20.8%) at 10 years, whereas for "prosthesis free of technical complications," they were 56.4% (95% CI: 41.7% to 68.8%) at 5 years and 9.8% (95% CI: 3.2% to 21.0%) at 10 years.
Collapse
Affiliation(s)
- Panos Papaspyridakos
- Assistant Professor, Division of Postgraduate Prosthodontics, Tufts University School of Dental Medicine, Boston, Mass; Visiting Assistant Professor, Department of Prosthodontics, University of Rochester Eastman Institute for Oral Health, Rochester, NY.
| | - Thaisa Barizan Bordin
- Assistant Professor, Department of Prosthodontics, Tufts University School of Dental Medicine, Boston, Mass; Instructor, Department of Prosthodontics, Postgraduate Program in Dentistry, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
| | - Zuhair S Natto
- Assistant Professor, Department of Dental Public Health, King Abdulaziz University, Jeddah, Saudi Arabia; Adjunct Assistant Professor, Department of Periodontology, Tufts University School of Dental Medicine, Boston, Mass
| | - Khaled El-Rafie
- Assistant Professor, Division of Postgraduate Prosthodontics, Tufts University School of Dental Medicine, Boston, Mass
| | - Sarah E Pagni
- Statistician, Department of Public Health and Community Service, Tufts University School of Dental Medicine, Boston, Mass
| | - Konstantinos Chochlidakis
- Assistant Professor and Program Director, Department of Prosthodontics, University of Rochester Eastman Institute for Oral Health, Rochester, NY
| | - Carlo Ercoli
- Professor and Chair, Department of Prosthodontics, University of Rochester Eastman Institute for Oral Health, Rochester, NY
| | - Hans-Peter Weber
- Professor, Department of Prosthodontics, Tufts University School of Dental Medicine, Boston, Mass
| |
Collapse
|
23
|
Bagegni A, Abou-Ayash S, Rücker G, Algarny A, Att W. The influence of prosthetic material on implant and prosthetic survival of implant-supported fixed complete dentures: a systematic review and meta-analysis. J Prosthodont Res 2019; 63:251-265. [PMID: 30871937 DOI: 10.1016/j.jpor.2019.02.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 01/20/2019] [Accepted: 02/01/2019] [Indexed: 10/27/2022]
Abstract
PURPOSE Evaluating the impact of the prosthetic material on implant- and prosthetic survival of implant-supported fixed complete dentures. STUDY SELECTION Electronic and hand searches were conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) to identify clinical studies including at least 10 patients restored with implant-supported dentures. The primary outcome was to evaluate the implant survival rate according to the applied restorative materials. The prosthetic survival rate was evaluated as secondary outcomes. RESULTS Forty-one of 2254 studies were finally selected. A statistically significant difference (p = 0.0337) was found between implant survival rates in the main restorative groups (metal-ceramic:97%(95%CI [0.96;0.98]), all-ceramic:99%(95%CI [0.98;1.00]), metal-resin:97%(95%CI [0.96;0.98])). Prosthetic survival rates were: (metal-ceramic:95%(95%CI [0.89;0.97]), all-ceramic:97%(95%CI [0.92;0.99]), metal-resin:97%(95%CI [0.95;0.98]), with no statistically significant difference (p = 0.3796) between the groups. Chipping incidence rates were as follows: metal-ceramic:8%(95%CI[0.03;0.20]), all-ceramic:15%(95%CI [0.06;0.32]), and metal-resin:22%(95%CI [0.13;0.33]). Five types of exact restorative materials were identified (porcelain-fused-to-non-precious alloy, porcelain-fused-to-zirconia, precious-metal-acrylic-resin, non-precious-metal-acrylic resin, and PMMA). Again, implant survival rates were statistically significantly influenced by the applied restorative materials (p = 0.0126), whereas, no significant differences were reported regarding prosthetic survival rate. CONCLUSIONS Prosthetic material selection seems to have no clinically relevant influence on implant- and prosthetic survival rate in implant-supported fixed complete dentures. Due to the high chipping rate, quantifying prosthetic survival alone does not seem to be a reliable tool for evaluating the outcome of the restorations and providing recommendations. These results, along with the obvious lack of evidence, suggest that clinicians must exercise caution whenever porcelain-fused-to-zirconia or metal-resin restorations are considered.
Collapse
Affiliation(s)
- Aimen Bagegni
- Department of Prosthodontics, School of Dentistry, Medical Center - University of Freiburg, Freiburg, Germany; Faculty of Medicine, Medical Center - University of Freiburg, Freiburg, Germany
| | - Samir Abou-Ayash
- Department of Reconstructive Dentistry And Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland; Faculty of Medicine, Medical Center - University of Freiburg, Freiburg, Germany
| | - Gerta Rücker
- Institute for Medical Biometry and Statistics, Medical Center - University of Freiburg, Freiburg, Germany; Faculty of Medicine, Medical Center - University of Freiburg, Freiburg, Germany
| | - Ahmad Algarny
- Department of Prosthodontics, School of Dentistry, Medical Center - University of Freiburg, Freiburg, Germany; Faculty of Medicine, Medical Center - University of Freiburg, Freiburg, Germany
| | - Wael Att
- Department of Prosthodontics, Tufts University School of Dental Medicine, Boston, MA, United States.
| |
Collapse
|
24
|
Papaspyridakos P, Bordin TB, Natto ZS, Kim YJ, El-Rafie K, Tsigarida A, Chochlidakis K, Weber HP. Double Full-Arch Fixed Implant-Supported Prostheses: Outcomes and Complications after a Mean Follow-Up of 5 Years. J Prosthodont 2019; 28:387-397. [PMID: 30806990 DOI: 10.1111/jopr.13040] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/09/2019] [Indexed: 11/28/2022] Open
Abstract
PURPOSE To retrospectively assess complications and clinical and radiographic outcomes of edentulous patients treated with double full-arch implant-supported fixed complete dental prostheses (IFCDPs) after a mean observation period of 5.1 years. MATERIALS AND METHODS The single-visit clinical and radiographic examination included medical and dental history review and clinical assessment of biologic and technical complications encountered with all implants and IFCDPs. Life table analysis and Kaplan-Meier survival curves were calculated. Analysis was conducted to evaluate the association between prosthesis survival and several risk factors such as type of opposing occlusion, nightguard use, and presence of bruxism. RESULTS Nineteen edentulous patients restored with 38 IFCDPs were included. A total of 249 implants were placed and 2 implants failed after a mean observation period of 5.1 years (range: 1-12 years), yielding an overall implant survival rate of 99.2% and prosthesis survival rate of 92.1%. Three out of 38 IFCDPs were lost, 1 after implant losses and 2 due to technical complications. The most frequent minor biologic complication was soft tissue recession with an estimated 5-year rate of 45.5% (95% CI: 39.4-57.5), while the most frequent major complication was peri-implantitis with an estimated 5-year implant-based rate of 9.5% (95% CI: 6.7-11.3). The most frequent minor technical complication was wear of the prosthetic material with an estimated 5-year rate of 49.0% (95% CI: 37.4-76.4), while the most frequent major technical complication was fracture of the prosthetic material with an estimated 5-year dental unit-based rate of 8.0% (95% CI: 6.6-10.1). CONCLUSIONS After a mean use time of 5.1 years, high implant and prosthesis survival rates were observed. The most frequent major biologic complication was peri-implantitis, and the most frequent major technical complication was fracture of the prosthetic material. The 5-year estimated cumulative rates for "prosthesis free of biologic complications" was 50.7% (95% CI: 33.7-65.4) and for "prosthesis free of technical complications" was 57.1% (95% CI: 39.3-71.5).
Collapse
Affiliation(s)
- Panos Papaspyridakos
- Division of Postgraduate Prosthodontics, Tufts University School of Dental Medicine, Boston, MA.,Department of Prosthodontics, University of Rochester Eastman Institute for Oral Health, Rochester, NY
| | - Thaisa Barizan Bordin
- Department of Prosthodontics, Tufts University School of Dental Medicine, Boston, MA.,Department of Prosthodontics, Postgraduate Program in Dentistry, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Zuhair S Natto
- Department of Dental Public Health, King Abdulaziz University, Jeddah, Saudi Arabia.,Department of Periodontology, Tufts University School of Dental Medicine, Boston, MA
| | - Yong-Jeong Kim
- Division of Postgraduate Prosthodontics, Tufts University School of Dental Medicine, Boston, MA
| | - Khaled El-Rafie
- Division of Postgraduate Prosthodontics, Tufts University School of Dental Medicine, Boston, MA
| | - Alexandra Tsigarida
- Department of Periodontology, University of Rochester Eastman Institute for Oral Health, Rochester, NY
| | - Konstantinos Chochlidakis
- Department of Prosthodontics, University of Rochester Eastman Institute for Oral Health, Rochester, NY
| | - Hans-Peter Weber
- Division of Postgraduate Prosthodontics, Tufts University School of Dental Medicine, Boston, MA
| |
Collapse
|
25
|
Daudt Polido W, Aghaloo T, Emmett TW, Taylor TD, Morton D. Number of implants placed for complete‐arch fixed prostheses: A systematic review and meta‐analysis. Clin Oral Implants Res 2018; 29 Suppl 16:154-183. [DOI: 10.1111/clr.13312] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 05/03/2018] [Accepted: 05/28/2018] [Indexed: 11/29/2022]
Affiliation(s)
- Waldemar Daudt Polido
- Department of Oral and Maxillofacial SurgeryIndiana University School of Dentistry Indianapolis Indiana
| | - Tara Aghaloo
- Department of Oral and Maxillofacial SurgeryUCLA School of Dentistry Los Angeles California
| | - Thomas W. Emmett
- Ruth Lilly Medical LibraryIndiana University School of Medicine Indianapolis Indiana
| | - Thomas D. Taylor
- Department of Reconstructive SciencesUniversity of Connecticut School of Dental Medicine Farmington Connecticut
| | - Dean Morton
- Department of ProsthodonticsIndiana University School of Dentistry Indianapolis Indiana
| |
Collapse
|
26
|
Maló P, de Araújo Nobre M, Moura Guedes C, Almeida R, Silva A, Sereno N, Legatheaux J. Short-term report of an ongoing prospective cohort study evaluating the outcome of full-arch implant-supported fixed hybrid polyetheretherketone-acrylic resin prostheses and the All-on-Four concept. Clin Implant Dent Relat Res 2018; 20:692-702. [DOI: 10.1111/cid.12662] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 03/05/2018] [Accepted: 07/12/2018] [Indexed: 01/25/2023]
Affiliation(s)
- Paulo Maló
- Department of Oral Surgery, Maló Clinic; Lisbon Portugal
| | | | | | | | | | - Nuno Sereno
- Invibio Biomaterial Solutions & JUVORA, Global Technology Center; Hillhouse International; Thornton Cleveleys United Kingdom
| | | |
Collapse
|
27
|
Papaspyridakos P, Barizan Bordin T, Kim YJ, DeFuria C, Pagni SE, Chochlidakis K, Rolim Teixeira E, Weber HP. Implant survival rates and biologic complications with implant-supported fixed complete dental prostheses: A retrospective study with up to 12-year follow-up. Clin Oral Implants Res 2018; 29:881-893. [PMID: 30043456 DOI: 10.1111/clr.13340] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 06/10/2018] [Accepted: 06/11/2018] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To assess the rate of biologic complications and implant survival in edentulous patients treated with implant-supported fixed complete dental prostheses (IFCDPs) after a mean observation period of 5.2 years (range: 1-12 years). MATERIALS AND METHODS A single-visit clinical and radiographic examination was performed to assess types and rates of biologic complications with ceramic IFCDPs (Group 1) and metal-resin IFCDPs (Group 2). RESULTS Of 457 rough surface dental implants supporting 71 IFCDPs (52 patients), six had failed, yielding an implant survival rate of 98.7% after a mean observation period of 5.2 years after definitive prosthesis insertion. The most frequent minor biologic complication was soft tissue recession (7.7% annual rate), inflammation under the IFCDP (7.4% annual rate), and peri-implant mucositis (6.3% annual rate). The most frequent major biologic complication was peri-implantitis (2.0% annual rate), in 46/457 implants (10.1%) supporting 19 IFCDPs and late implant failure (0.3% annual rate). The frequency of biologic complications was not statistically different between Group 1 and Group 2. The presence of high plaque index had significant effect on bone loss. CONCLUSIONS After a mean exposure time of 5.2 years postdefinitive prosthesis insertion (range: 1-12 years), implant survival rate of 98.7% was achieved. The six implant failures in three patients occurred after 5 years and affected the prosthesis survival. Soft tissue recession was the most frequent minor biologic complication, whereas peri-implantitis was the most frequent major biologic complication. A 10-year implant-based mucosal recession rate of 77% (95% CI: 68.2-87.9) and a 10-year implant-based peri-implantitis rate of 20% (95% CI: 16.9-24.9) were found.
Collapse
Affiliation(s)
- Panos Papaspyridakos
- Division of Postgraduate Prosthodontics, Tufts University School of Dental Medicine, Boston, Massachusetts.,Department of Prosthodontics, University of Rochester Eastman Institute for Oral Health, Rochester, New York
| | - Thaisa Barizan Bordin
- Division of Postgraduate Prosthodontics, Tufts University School of Dental Medicine, Boston, Massachusetts.,Division of Postgraduate Prosthodontics, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Yong-Jeong Kim
- Division of Postgraduate Prosthodontics, Tufts University School of Dental Medicine, Boston, Massachusetts
| | - Catherine DeFuria
- Division of Postgraduate Prosthodontics, Tufts University School of Dental Medicine, Boston, Massachusetts
| | - Sarah E Pagni
- Department of Public Health and Community Service, Tufts University School of Dental Medicine, Boston, Massachusetts
| | - Konstantinos Chochlidakis
- Department of Prosthodontics, University of Rochester Eastman Institute for Oral Health, Rochester, New York
| | - Eduardo Rolim Teixeira
- Division of Postgraduate Prosthodontics, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Hans-Peter Weber
- Division of Postgraduate Prosthodontics, Tufts University School of Dental Medicine, Boston, Massachusetts
| |
Collapse
|
28
|
Pellizzer EP, Mello CCD, Gomes JMDL, Santiago Júnior JF, Lemos CAA, Verri FR. Vertical and Horizontal Misfit Analysis of 3-unit FDP Fabricated with Different Techniques and CAD/CAM Systems. Braz Dent J 2018; 29:342-346. [PMID: 30462759 DOI: 10.1590/0103-6440201801916] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 04/18/2018] [Indexed: 11/21/2022] Open
Abstract
The aim of this is was evaluate the vertical and horizontal marginal adaptation of 3-unit fixed partial denture frameworks fabricated using different techniques and CAD/CAM systems. A total of 40 framework specimens were fabricated and divided into four groups as follows: lost-wax casting (G1); lost-wax casting with welding (G2); extraoral optical scanning of models (3S/DWOS) (G3); intraoral optical scanning (Cerec Bluecam/Sirona) (G4). A reference model was used to simulate a fixed partial denture with three elements (with a central pontic). The frameworks of G1 and G2 were cast in nickel-chromium (NiCr) alloy, whereas those of G3 and G4 were milled in zirconia. In all groups, vertical and horizontal marginal adaptation (over-contour and under-contour) was evaluated using a three-dimensional optical microscope (Quick Scope, Mitutoyo). The results showed higher vertical marginal misfit in G1 than in the other groups (p<0.001). Regarding horizontal marginal misfit, higher over-contour values occurred in G3 than in the other groups (p<0.001). G3 did not show under-contour at all, whereas the other groups did not differ from each other in this regard (p>0.05). Within the limitations of this study, it can be concluded that lost-wax casting with welding is a viable alternative to the use of CAD/CAM systems to fabricate frameworks of three-unit FPDs, since the techniques yielded similar vertical misfit values. Extra-oral CAD/CAM systems showed the highest horizontal misfit (over-contour) compared to other groups.
Collapse
Affiliation(s)
- Eduardo Piza Pellizzer
- Department of Dental Materials and Prosthodontics, Araçatuba Dental School, UNESP - Universidade Estadual Paulista, Araçatuba, Brazil
| | - Caroline Cantieri de Mello
- Department of Dental Materials and Prosthodontics, Araçatuba Dental School, UNESP - Universidade Estadual Paulista, Araçatuba, Brazil
| | - Jéssica Marcela de Luna Gomes
- Department of Dental Materials and Prosthodontics, Araçatuba Dental School, UNESP - Universidade Estadual Paulista, Araçatuba, Brazil
| | | | - Cleidiel Aparecido Araújo Lemos
- Department of Dental Materials and Prosthodontics, Araçatuba Dental School, UNESP - Universidade Estadual Paulista, Araçatuba, Brazil
| | - Fellippo Ramos Verri
- Department of Dental Materials and Prosthodontics, Araçatuba Dental School, UNESP - Universidade Estadual Paulista, Araçatuba, Brazil
| |
Collapse
|
29
|
Wong CKK, Narvekar U, Petridis H. Prosthodontic Complications of Metal-Ceramic and All-Ceramic, Complete-Arch Fixed Implant Prostheses with Minimum 5 Years Mean Follow-Up Period. A Systematic Review and Meta-Analysis. J Prosthodont 2018; 28:e722-e735. [DOI: 10.1111/jopr.12797] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/21/2018] [Indexed: 10/17/2022] Open
|
30
|
Box VH, Sukotjo C, Knoernschild KL, Campbell SD, Afshari FS. Patient-Reported and Clinical Outcomes of Implant-Supported Fixed Complete Dental Prostheses: A Comparison of Metal-Acrylic, Milled Zirconia, and Retrievable Crown Prostheses. J ORAL IMPLANTOL 2018; 44:51-61. [DOI: 10.1563/aaid-joi-d-17-00184] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The purpose of this retrospective study was to assess the incidence of biologic and technical complications for implant-supported fixed complete dental prostheses (IFCDPs) and their relationship to oral health-related quality of life (OHQoL) and patient-reported outcomes. Metal-acrylic (MA), retrievable crown (RC), monolithic zirconia (MZ), and porcelain veneered zirconia (PVZ) prostheses were included. Patients who received an IFCDP at least 1 year prior to recall were identified. Exclusion criteria were: (1) an opposing complete denture and (2) time in service >70 months. A total of 37 patients with 49 prostheses, including 22 MA, 14 RC, 7 MZ, and 6 PVZ prostheses were recalled. Patient-reported outcomes were assessed via OHIP-49 (Oral Health Impact Profile) and a scripted interview with open-ended questions. All designs had high complication rates (12 of 22 MA, 10 of 14 RC, 2 of 7 MZ, and 5 of 6 PVZ). The most common complications were: (1) MA: posterior tooth wear, (2) RC: chipping and fracturing of the restorations, (3) MZ: wear of opposing restorations, and (4) PVZ: chipping of opposing restorations. Average OHIP-49 scores ranged from 7 to 29, indicating high OHQoL, patient satisfaction, regardless of prosthetic design (P = .16). The standardized interview highlighted that although most patients were extremely satisfied (73%), some continued to be bothered by material bulk (14%) and felt that maintenance of oral hygiene was excessively time-consuming (16%). In the context of this study, despite high complication rates and maintenance needs, all IFCDP designs resulted in high OHQoL and patient satisfaction.
Collapse
Affiliation(s)
- Virginia Hogsett Box
- Department of Restorative Dentistry, College of Dentistry, University of Illinois at Chicago, Chicago, Ill
- Private practice, Dallas, Tex
| | - Cortino Sukotjo
- Department of Restorative Dentistry, College of Dentistry, University of Illinois at Chicago, Chicago, Ill
| | - Kent L. Knoernschild
- Department of Restorative Dentistry, College of Dentistry, University of Illinois at Chicago, Chicago, Ill
| | - Stephen D. Campbell
- Department of Restorative Dentistry, College of Dentistry, University of Illinois at Chicago, Chicago, Ill
| | - Fatemeh S. Afshari
- Department of Restorative Dentistry, College of Dentistry, University of Illinois at Chicago, Chicago, Ill
| |
Collapse
|
31
|
Göthberg C, Gröndahl K, Omar O, Thomsen P, Slotte C. Bone and soft tissue outcomes, risk factors, and complications of implant-supported prostheses: 5-Years RCT with different abutment types and loading protocols. Clin Implant Dent Relat Res 2018; 20:313-321. [DOI: 10.1111/cid.12587] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 12/01/2017] [Accepted: 01/04/2018] [Indexed: 01/15/2023]
Affiliation(s)
- Catharina Göthberg
- Department of Prosthetic Dentistry; Institute for Postgraduate Dental Education; Jönköping Sweden
- Department of Biomaterials; Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg; Gothenburg Sweden
- BIOMATCELL VINN Excellence Center of Biomaterials and Cell Therapy; Gothenburg Sweden
| | - Kerstin Gröndahl
- Department of Oral & Maxillofacial Radiology; Institute for Postgraduate Dental Education; Jönköping Sweden
| | - Omar Omar
- Department of Biomaterials; Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg; Gothenburg Sweden
- BIOMATCELL VINN Excellence Center of Biomaterials and Cell Therapy; Gothenburg Sweden
| | - Peter Thomsen
- Department of Biomaterials; Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg; Gothenburg Sweden
- BIOMATCELL VINN Excellence Center of Biomaterials and Cell Therapy; Gothenburg Sweden
| | - Christer Slotte
- Department of Biomaterials; Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg; Gothenburg Sweden
- BIOMATCELL VINN Excellence Center of Biomaterials and Cell Therapy; Gothenburg Sweden
- Department of Periodontology; Institute for Postgraduate Dental Education; Jönköping Sweden
| |
Collapse
|
32
|
Dawson JH, Hyde B, Hurst M, Harris BT, Lin WS. Polyetherketoneketone (PEKK), a framework material for complete fixed and removable dental prostheses: A clinical report. J Prosthet Dent 2017; 119:867-872. [PMID: 29195815 DOI: 10.1016/j.prosdent.2017.09.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 09/15/2017] [Accepted: 09/15/2017] [Indexed: 10/18/2022]
Abstract
This clinical report demonstrates the use of polyetherketoneketone (PEKK) as a framework material with individually luted heat-pressed lithium disilicate glass-ceramic crowns for an implant-supported complete fixed dental prosthesis (ICFDP) and a conventional complete removable dental prosthesis (CRDP). This prosthesis design provides a non-computer-aided design and computer-aided manufacturing (CAD-CAM) option for the fabrication of ICFDPs and CRDPs with individualized ceramic crowns for optimal esthetics. The performance of PEKK as a framework material needs to be assessed in clinical trials.
Collapse
Affiliation(s)
- Jonathan H Dawson
- Private practice, Greensboro, NC. Former resident, Advanced Education in Prosthodontics, Department of Oral Health and Rehabilitation, School of Dentistry, University of Louisville, Louisville, Ky
| | | | | | - Bryan T Harris
- Associate Professor and Director, Advanced Education in Prosthodontics, Department of Oral Health and Rehabilitation, School of Dentistry, University of Louisville, Louisville, Ky
| | - Wei-Shao Lin
- Associate Professor and Director, Division of Prosthodontics, Department of Oral Health and Rehabilitation, University of Louisville School of Dentistry, Louisville, Ky.
| |
Collapse
|
33
|
Ameri N, Alikhasi M, Rezayani V. Full mouth rehabilitation with retrievable metal-ceramic implant-supported fixed prostheses for a young patient with atrophic jaws: a clinical report. Clin Case Rep 2017; 5:1531-1535. [PMID: 28878920 PMCID: PMC5582226 DOI: 10.1002/ccr3.1112] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Revised: 12/10/2016] [Accepted: 06/28/2017] [Indexed: 11/30/2022] Open
Abstract
Treatment of atrophic edentulous jaws with implant‐supported fixed prostheses is one of the most complicated challenges in dentistry. This clinical report describes the prosthesis which consists of screw retained frameworks with individual cement retained crowns which combines the advantages of the screw retained restoration with the advantage of cement retained.
Collapse
Affiliation(s)
- Narges Ameri
- Department of Prosthodontics School of Dentistry Tehran University of Medical Sciences Tehran Iran
| | - Marzieh Alikhasi
- Department of Prosthodontics School of Dentistry Tehran University of Medical Sciences Tehran Iran.,Dental Research Center Dentistry Research Institute Tehran University of Medical Sciences Tehran Iran
| | - Vida Rezayani
- Department of Prosthodontics School of Dentistry Shahid Beheshti University of Medical Sciences Tehran Iran
| |
Collapse
|
34
|
Papaspyridakos P, Kang K, DeFuria C, Amin S, Kudara Y, Weber HP. Digital workflow in full-arch implant rehabilitation with segmented minimally veneered monolithic zirconia fixed dental prostheses: 2-year clinical follow-up. J ESTHET RESTOR DENT 2017; 30:5-13. [DOI: 10.1111/jerd.12323] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Panos Papaspyridakos
- Postgraduate Prosthodontics, Tufts University School of Dental Medicine; Boston Massachusetts
- Department of Prosthodontics; University of Rochester Eastman Institute for Oral Health; Rochester New York
| | - Kiho Kang
- Postgraduate Prosthodontics, Tufts University School of Dental Medicine; Boston Massachusetts
| | - Catherine DeFuria
- Postgraduate Prosthodontics, Tufts University School of Dental Medicine; Boston Massachusetts
| | - Sarah Amin
- Postgraduate Prosthodontics, Tufts University School of Dental Medicine; Boston Massachusetts
| | - Yukio Kudara
- Postgraduate Prosthodontics, Tufts University School of Dental Medicine; Boston Massachusetts
| | - Hans-Peter Weber
- Postgraduate Prosthodontics, Tufts University School of Dental Medicine; Boston Massachusetts
| |
Collapse
|
35
|
Wang P, Tang C, Tang Y, Wu Y. Immediate implant placement and complete mouth rehabilitation with CAD-CAM titanium frameworks and cemented crowns for a patient with severe periodontal disease: A clinical report. J Prosthet Dent 2017; 119:511-515. [PMID: 28781070 DOI: 10.1016/j.prosdent.2017.05.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 05/17/2017] [Accepted: 05/17/2017] [Indexed: 11/26/2022]
Abstract
The technique of immediate implantation has been widely used to reduce treatment time and bone loss after extraction. However, immediate implant placement in infected extraction sockets is generally contraindicated. This clinical report describes a treatment protocol for immediate implantation after the extraction of teeth with generalized chronic periodontitis. The technique used for the oral rehabilitation used computer-assisted design and computer-assisted manufacturing (CAD-CAM) titanium frameworks and cemented zirconia crowns. The titanium frameworks overcame suboptimal implant position and the cemented crowns provided excellent function and esthetics despite the locations of screw-access openings. No clinical complications occurred during a 13-month follow-up.
Collapse
Affiliation(s)
- Pei Wang
- Graduate student, Graduate Prosthodontics, Department of Dental Implantology, Nanjing Medical University, Jiangsu, PR of China
| | - Chunbo Tang
- Assistant Professor, Department of Dental Implantology, Affiliated Hospital of Stomatology, Nanjing Medical University, Jiangsu, PR of China.
| | - Yi Tang
- Graduate student, Graduate Prosthodontics, Department of Dental Implantology, Nanjing Medical University, Jiangsu, PR of China
| | - Yunong Wu
- Professor, Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, Jiangsu, PR of China
| |
Collapse
|
36
|
Tiossi R, Gomes ÉA, Faria ACL, Rodrigues RCS, Ribeiro RF. Biomechanical behavior of titanium and zirconia frameworks for implant-supported full-arch fixed dental prosthesis. Clin Implant Dent Relat Res 2017; 19:860-866. [PMID: 28772024 DOI: 10.1111/cid.12525] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 07/18/2017] [Indexed: 11/29/2022]
Abstract
BACKGROUND The biomechanical behavior of implant-supported titanium and zirconia full-arch fixed dental prosthesis (FAFDP) frameworks require further investigation. PURPOSE Strains transferred by implant-supported titanium (Ti) and zirconia (Zr) FAFDP frameworks were analyzed. MATERIALS AND METHODS Maxillary 14-unit FAFDPs supported by 6 implants and 12-unit FAFDPs supported by 4 implants were tested. One-piece frameworks were fabricated by computer-aided design/computer-aided manufacturing. Four groups were divided (n = 3): G1, Ti-6 implants; G2, Zr-6 implants; G3, Ti-4 implants; G4, Zr-4 implants. A 250 N single-point load was applied on the second premolar. A three-dimensional digital image correlation system recorded framework and maxilla model surface deformation. RESULTS The following strains (μS) averaged over the length of the second premolar were calculated: frameworks, G1 (321.82 ± 111.29), G2 (638.87 ± 108.64), G3 (377.77 ± 28.64), G4 (434.18 ± 132.21); model surface, G1 (473.99 ± 48.69), G2 (653.93 ± 45.26), G3 (1082.50 ± 71.14), G4 (1218.26 ± 230.37). Zirconia frameworks supported by 6 implants (G2) presented higher surface strains (P < .05). FAFDPs with titanium frameworks transferred significantly lower strains to the supporting maxilla when 6 implants were used (G1) (P < .05). Both framework materials transferred similar strains when supported by 4 implants (G3 and G4) (P > .05). CONCLUSIONS Zirconia frameworks supported by 6 implants showed higher strains. FAFDPs supported by 6 implants transferred less strains to the supporting maxilla, irrespective of framework material.
Collapse
Affiliation(s)
- Rodrigo Tiossi
- Department of Restorative Dentistry, School of Dentistry, State University of Londrina, Londrina, PR, Brazil
| | - Érica Alves Gomes
- Department of Dental Materials and Prosthodontics, Ribeirão Preto School of Dentistry, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Adriana Cláudia Lapria Faria
- Department of Dental Materials and Prosthodontics, Ribeirão Preto School of Dentistry, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Renata Cristina Silveira Rodrigues
- Department of Dental Materials and Prosthodontics, Ribeirão Preto School of Dentistry, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Ricardo Faria Ribeiro
- Department of Dental Materials and Prosthodontics, Ribeirão Preto School of Dentistry, University of São Paulo, Ribeirão Preto, SP, Brazil
| |
Collapse
|
37
|
Eighteen-Month Outcomes of Titanium Frameworks Using Computer-Aided Design and Computer-Aided Manufacturing Method. IMPLANT DENT 2017; 26:480-484. [DOI: 10.1097/id.0000000000000582] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
38
|
AlHelal A, AlBader B, Kattadiyil MT, Garbacea A, Proussaefs P. CAD-CAM implant-supported fixed complete dental prosthesis with titanium milled molars: A clinical report. J Prosthet Dent 2017; 117:463-469. [DOI: 10.1016/j.prosdent.2016.07.029] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Revised: 07/06/2016] [Accepted: 07/06/2016] [Indexed: 11/25/2022]
|
39
|
Papaspyridakos P, Rajput N, Kudara Y, Weber HP. Digital Workflow for Fixed Implant Rehabilitation of an Extremely Atrophic Edentulous Mandible in Three Appointments. J ESTHET RESTOR DENT 2017; 29:178-188. [DOI: 10.1111/jerd.12290] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Panos Papaspyridakos
- Assistant Professor, Department of Postgraduate Prosthodontics; Tufts University School of Dental Medicine; Boston MA USA
- Visiting Assistant Professor, Department of Prosthodontics; University of Rochester Eastman Institute for Oral Health; Rochester NY USA
| | - Neha Rajput
- Resident in Postgraduate Prosthodontics, Department of Postgraduate Prosthodontics; Tufts University School of Dental Medicine; Boston MA USA
| | - Yukio Kudara
- Technical Instructor and Laboratory Technician, Department of Postgraduate Prosthodontics; Tufts University School of Dental Medicine; Boston MA USA
| | - Hans-Peter Weber
- Professor and Chair, Department of Postgraduate Prosthodontics; Tufts University School of Dental Medicine; Boston MA USA
| |
Collapse
|
40
|
Doornewaard R, Christiaens V, De Bruyn H, Jacobsson M, Cosyn J, Vervaeke S, Jacquet W. Long-Term Effect of Surface Roughness and Patients' Factors on Crestal Bone Loss at Dental Implants. A Systematic Review and Meta-Analysis. Clin Implant Dent Relat Res 2016; 19:372-399. [PMID: 27860171 DOI: 10.1111/cid.12457] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Publications from 2011 to 2015 were selected to evaluate effect of implant surface roughness on long-term bone loss as surrogate for peri-implantitis risk. 87 out of 2,566 papers reported the mean bone loss after at least 5 years of function. Estimation of the proportion of implants with bone loss above 1, 2, and 3 mm as well as analysis the effect of implant surface roughness, smoking, and history of periodontitis was performed. By means of the provided statistical information of bone loss (mean and standard deviation) the prevalence of implants with bone loss ranging from 1 to 3 mm was estimated. The bone loss was used as a surrogate parameter for "peri-implantitis" given the fact that "peri-implantitis" prevalence was not reported in most studies or when reported, the diagnostic criteria were unclear or of dubious quality. The outcome of this review suggests that peri-implant bone loss around minimally rough implant systems was statistically significant less in comparison to the moderately rough and rough implant systems. No statistically significant difference was observed between moderately rough and rough implant systems. The studies that compared implants with comparable design and different surface roughness, showed less average peri-implant bone loss around the less rough surfaces in the meta-analysis. However, due to the heterogeneity of the papers and the multifactorial cause for bone loss, the impact of surface roughness alone seems rather limited and of minimal clinical importance. Irrespective of surface topography or implant brand, the average weighted implant survival rate was 97.3% after 5 years or more of loading. If considering 3 mm bone loss after at least 5 years to represent the presence of "peri-implantitis," less than 5% of the implants were affected. The meta-analysis indicated that periodontal history and smoking habits yielded more bone loss.
Collapse
Affiliation(s)
- Ron Doornewaard
- Specialist in training, Master student Periodontology, Department Periodontology & Oral Implantology, Dental School, Faculty Medicine and Health Sciences, Ghent University Belgium
| | - Véronique Christiaens
- PhD student, Department Periodontology & Oral Implantology, Dental School, Faculty Medicine and Health Sciences, Ghent University Belgium
| | - Hugo De Bruyn
- full professor and chairman, Department Periodontology & Oral Implantology, Dental School, Faculty Medicine and Health Sciences, Ghent University Belgium, visiting professor, Department of Prosthodontics, Malmö University, Sweden
| | - Magnus Jacobsson
- adjunct professor, Department of Prosthodontics, Malmö University, Sweden
| | - Jan Cosyn
- professor, Department Periodontology & Oral Implantology, Dental School, Faculty Medicine and Health Sciences, Ghent University Belgium, professor, Faculty of Medicine and Health Sciences, Oral Health Research Group ORHE, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Stijn Vervaeke
- assistant professor, Department Periodontology & Oral Implantology, Dental School, Faculty Medicine and Health Sciences, Ghent University Belgium
| | - Wolfgang Jacquet
- professor, Faculty of Medicine and Pharmacy, Department of Educational Sciences EDWE-LOCI, Faculty of Psychology and Educational Sciences, Vrije Universiteit Brussel, Brussels, Belgium, professor, Faculty of Medicine and Health Sciences, Oral Health Research Group ORHE, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
| |
Collapse
|
41
|
Rojas Vizcaya F. Retrospective 2- to 7-Year Follow-Up Study of 20 Double Full-Arch Implant-Supported Monolithic Zirconia Fixed Prostheses: Measurements and Recommendations for Optimal Design. J Prosthodont 2016; 27:501-508. [PMID: 27570943 DOI: 10.1111/jopr.12528] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/13/2016] [Indexed: 11/28/2022] Open
Abstract
PURPOSE To measure the extension of cantilever lengths, thicknesses, and heights of zirconia prostheses in the lingual and facial areas of the distal screw access openings, and to evaluate the clinical performance regarding chipping or fracture of the distal cantilevered sections of double full-arch CAD/CAM screw-retained, stained, monolithic zirconia, gingival-colored ceramic implant-supported fixed prostheses (MZ-FPs). MATERIALS AND METHODS Ten edentulous patients were provided with a total of 20 CAD/CAM double full-arch MZ-FPs. The zirconia thicknesses around distal screw access openings at three different levels (crown height space, screw access opening lengths, and dimensions of the cantilevered segments) were measured in the resin prototypes. Patients were evaluated clinically (visually) without magnification, with intraoral digital photography, and radiologically by the author, approximately every 6 months. Ten patients with 20 MZ-FPs were evaluated. Twenty resin prototypes with 35 cantilevered segments (15 maxillary, 20 mandibular) were measured. The lingual and facial thicknesses of the resin frameworks and the crown height spaces of 35 distal access openings were measured. RESULTS The average extension of the maxillary cantilever segments was 7.72 mm; the mandibular cantilever average was 13.72 mm. The average crown height space for maxillary prostheses was 13.27 mm, for the mandibular prostheses it was 11.89 mm. Zirconia thickness around distal screw access openings at the middle of the crowns, margins and middle of the gingival areas (buccal side of maxillary prostheses) was 4.29, 3.79, and 3.87 mm, respectively. On the lingual sides the thicknesses were 3.13, 2.85, and 3.15 mm, respectively. For mandibular prostheses the thicknesses were 3.56, 3.08, and 3.15 mm, respectively, on the buccal sides, and 2.07, 2.00, and 2.99 mm, respectively, on the lingual sides. No implant failure or changes in the occlusal surface, chipping of the cuspid or incisal edges, or prosthesis distal extension fractures were observed during follow-up periods ranging from 2 to 7 years. The survival rate was 100% for implants and prostheses. In one of the patients, chipping of the pink ceramic was noted in the maxillary prosthesis 36 months after placement. CONCLUSIONS The results of this study indicated that full-arch MZ-FPs without cutback, or with partial digital cutback and veneering ceramic, were a therapeutic option. Recommendations regarding the thickness of zirconia at the level of the distal screw access openings, the crown height spaces, and the lengths of the cantilever segments were recorded. Additional in vitro and clinical studies will be required for more scientific analysis of the criteria for design of this type of prosthesis to minimize prosthetic complications. Long-term and multicenter studies are needed to corroborate the findings discussed in this report.
Collapse
Affiliation(s)
- Fernando Rojas Vizcaya
- Department of Prosthodontics, University of North Carolina, Chapel Hill, NC.,Mediterranean Prosthodontic Institute, Castellon, Spain
| |
Collapse
|
42
|
de Araújo Nobre M, Mano Azul A, Rocha E, Maló P, Salvado F. Attributable fractions, modifiable risk factors and risk stratification using a risk score for peri-implant pathology. J Prosthodont Res 2016; 61:43-53. [PMID: 27032718 DOI: 10.1016/j.jpor.2016.03.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 03/10/2016] [Accepted: 03/16/2016] [Indexed: 10/22/2022]
Abstract
PURPOSE This study aimed to estimate the impact of risk factors for peri-implant pathology, to identify potentially modifiable factors, and to evaluate the accuracy of the risk algorithm, risk scores and risk stratification. METHODS This retrospective case-control study with 1275 patients (255 cases; 1020 controls) retrieved a model according to the predictors: history of Periodontitis, bacterial plaque, bleeding, bone level, lack of passive fit or non-optimal screw joint, metal-ceramic restoration, proximity to other implants/teeth, and smoking habits. Outcome measures were the attributable fraction; the positive and negative likelihood ratios at different disease cut-off points illustrated by the area under the curve statistic. RESULTS Six predictors may be modified or controlled directly by either the patient or the clinician, accounting for a reduction in up to 95% of the peri-implant pathology cases. The positive and negative likelihood ratios were 9.69 and 0.13, respectively; the area under the curve was 0.96; a risk score was developed, making the complex statistical model useful to clinicians. CONCLUSIONS Based on the results, six predictors for the incidence of peri-implant pathology can be modified to significantly improve the outcome. It was possible to stratify patients per risk category according to the risk score, providing a tool for clinicians to support their decision-making process.
Collapse
|
43
|
Maló P, de Araújo Nobre M, Lopes A. Three-Year Outcome of Fixed Partial Rehabilitations Supported by Implants Inserted with Flap or Flapless Surgical Techniques. J Prosthodont 2015; 25:357-63. [PMID: 26588599 DOI: 10.1111/jopr.12400] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/05/2015] [Indexed: 11/27/2022] Open
Abstract
PURPOSE The aim of this prospective clinical study was to evaluate the 3-year outcome of fixed partial prostheses supported by implants with immediate provisionalization without occlusal contacts inserted in predominantly soft bone with flap and flapless protocols. MATERIALS AND METHODS Forty-one patients partially rehabilitated with 72 NobelSpeedy implants (51 maxillary; 21 mandibular) were consecutively included and treated with a flapless surgical protocol (n = 20 patients; 32 implants) and flapped surgical protocol (n = 21 patients; 40 implants). Primary outcome measure was implant survival; secondary outcome measures were marginal bone resorption (comparing the bone levels at 1 and 3 years with baseline) and the incidence of biological, mechanical, and esthetic complications. Survival was computed through life tables; descriptive statistics were applied to the remaining variables of interest. RESULTS Eight patients with eight implants dropped out of the study. One implant failed in one patient (flapless group) giving an overall cumulative survival rate (CSR) of 98.6%. No failures were noted with the flapped protocol (CSR 100%), while for the implants placed with the flapless surgical technique, a 96.9% CSR was registered. The overall average marginal bone resorption at 3 years was 1.37 mm (SD = 0.94 mm), with 1.14 mm (SD = 0.49 mm) and 1.60 mm (SD = 1.22 mm) for the flap and flapless groups, respectively. Mechanical complications occurred in nine patients (n = 5 patients in the flapless group; n = 4 patients in the flap group). Implant infection was registered in three implants and three patients (flapless group), who exhibited inadequate oral hygiene levels. CONCLUSIONS Partial edentulism rehabilitation through immediate provisionalization fixed prosthesis supported by dental implants inserted through flap or flapless surgical techniques in areas of predominantly soft bone was viable at 3 years of follow-up. The limitations and risks of the "free-hand" method in flapless surgery should be considered when planning implant-supported fixed prosthetic reconstructions.
Collapse
Affiliation(s)
- Paulo Maló
- Department of Oral Surgery, Maló Clinic, Lisbon, Portugal
| | | | - Armando Lopes
- Department of Oral Surgery, Maló Clinic, Lisbon, Portugal
| |
Collapse
|
44
|
Patzelt SBM, Spies BC, Kohal RJ. CAD/CAM-fabricated implant-supported restorations: a systematic review. Clin Oral Implants Res 2015; 26 Suppl 11:77-85. [DOI: 10.1111/clr.12633] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/12/2015] [Indexed: 12/20/2022]
Affiliation(s)
| | - Benedikt C. Spies
- Department of Prosthetic Dentistry; Center for Dental Medicine; Medical Center - University of Freiburg; Freiburg Germany
| | - Ralf J. Kohal
- Department of Prosthetic Dentistry; Center for Dental Medicine; Medical Center - University of Freiburg; Freiburg Germany
| |
Collapse
|
45
|
de Araújo Nobre M, Mano Azul A, Rocha E, Maló P. Risk factors of peri-implant pathology. Eur J Oral Sci 2015; 123:131-9. [DOI: 10.1111/eos.12185] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/11/2015] [Indexed: 01/20/2023]
Affiliation(s)
- Miguel de Araújo Nobre
- Institute of Preventive Medicine; Faculty of Medicine; University of Lisbon; Lisbon Portugal
- Malo Clinic; Lisbon Portugal
| | | | - Evangelista Rocha
- Institute of Preventive Medicine; Faculty of Medicine; University of Lisbon; Lisbon Portugal
| | | |
Collapse
|
46
|
Maló P, de Araújo Nobre M, Lopes A, Moss S. Posterior maxillary implants inserted with bicortical anchorage and placed in immediate function for partial or complete edentulous rehabilitations. A retrospective clinical study with a median follow-up of 7 years. Oral Maxillofac Surg 2015; 19:19-27. [PMID: 24577629 DOI: 10.1007/s10006-014-0444-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Accepted: 02/18/2014] [Indexed: 06/03/2023]
Abstract
PURPOSE The aim of this study was to report the outcome of posterior maxillary implants inserted with "bicortical anchorage" in medium or low-density bone and placed in immediate function for the rehabilitation of patients with partial or complete edentulism. METHODS Eighty-eight patients (32 males and 56 females, mean age = 54 years; range 28-78 years) were included from October 1999 to November 2008, and followed between 6 months and 13 years (median of 7 years). A total of 124 posterior maxillary implants were inserted with bicortical anchorage (engaging the cortical plates of the maxillary crest along with that of either the sinus or nasal cavities) as follows: MkII (n = 1), MkIII (n = 6), MkIV (n = 18), and NobelSpeedy Groovy (n = 99); (Nobel Biocare AB). Implants were evaluated on the basis of survival, marginal bone levels, and complications (mechanical and biological). RESULTS Eleven patients dropped out of the study (12.5 %). Four implants were lost in four patients who underwent complete edentulous rehabilitations, yielding a cumulative survival rate of 94.2 % after a median follow-up of 7 years. The survival rate for the prostheses was 100 %. The marginal bone levels were on average 1.56 mm (standard deviation of 0.87 mm), after 5-years of follow-up. Biological complications occurred with 17 implants in 17 patients. Mechanical complications occurred in 49/88 patients. Thirty of these 49 patients were heavy bruxers. CONCLUSIONS Within the limitations of this study, fixed prosthetic rehabilitations for partial and complete edentulism supported by implants in the posterior maxilla which are inserted with bicortical anchorage and placed in immediate function is a viable concept on long-term follow-up. Nevertheless, controlling the occlusion is mandatory in order to decrease the likelihood of mechanical complications.
Collapse
Affiliation(s)
- Paulo Maló
- Malo Clinic, Avenida dos Combatentes, 43, 4th floor, 1600-042, Lisbon, Portugal,
| | | | | | | |
Collapse
|
47
|
AlTarawneh S, Limmer B, Reside GJ, Cooper L. Dual Jaw Treatment of Edentulism Using Implant-Supported Monolithic Zirconia Fixed Prostheses. J ESTHET RESTOR DENT 2015; 27:63-70. [DOI: 10.1111/jerd.12137] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sandra AlTarawneh
- Department of Prosthodontics; Faculty of Dentistry; University of Jordan; Amman Jordan
- Faculty of Dentistry; University of North Carolina; Chapel Hill NC USA
| | - Bryan Limmer
- Private Practice; Trailhead Dental; Wheat Ridge CO USA
| | - Glenn J. Reside
- Department of Oral and Maxillofacial Surgery; School of Dentistry; University of North Carolina; Chapel Hill NC USA
| | - Lyndon Cooper
- Department of Prosthodontics; School of Dentistry; University of North Carolina; Chapel Hill NC USA
| |
Collapse
|
48
|
Digital data acquisition for a CAD/CAM-fabricated titanium framework and zirconium oxide restorations for an implant-supported fixed complete dental prosthesis. J Prosthet Dent 2014; 112:1324-9. [DOI: 10.1016/j.prosdent.2014.06.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 06/20/2014] [Accepted: 06/23/2014] [Indexed: 11/23/2022]
|
49
|
Sadowsky SJ, Fitzpatrick B, Curtis DA. Evidence-Based Criteria for Differential Treatment Planning of Implant Restorations for the Maxillary Edentulous Patient. J Prosthodont 2014; 24:433-46. [DOI: 10.1111/jopr.12226] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/25/2014] [Indexed: 11/28/2022] Open
Affiliation(s)
- Steven J. Sadowsky
- Department of Integrated Reconstructive Dental Sciences, University of the Pacific; Arthur A. Dugoni School of Dentistry; San Francisco CA
| | | | - Donald A. Curtis
- Department of Preventive & Restorative Dental Sciences; UCSF School of Dentistry; San Francisco CA
| |
Collapse
|
50
|
Maló P, Araújo Nobre MD, Lopes A, Rodrigues R. Double Full-Arch Versus Single Full-Arch, Four Implant-Supported Rehabilitations: A Retrospective, 5-Year Cohort Study. J Prosthodont 2014; 24:263-70. [PMID: 25273895 DOI: 10.1111/jopr.12228] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/10/2014] [Indexed: 12/31/2022] Open
Abstract
PURPOSE To report the 5-year outcome of the All-on-4 treatment concept comparing double full-arch (G1) and single-arch (G2) groups. MATERIALS AND METHODS This retrospective cohort study included 110 patients (68 women and 42 men, average age of 55.5 years) with 440 NobelSpeedy groovy implants. One hundred sixty-five full-arch, fixed, immediately loaded prostheses in both jaws were followed for 5 years. G1 consisted of 55 patients with double-arch rehabilitations occluded with implant-supported fixed prostheses, and G2 consisted of 55 patients with maxillary single-arch rehabilitations or mandibular single-arch rehabilitations occluded with natural teeth or removable prostheses. The groups were matched for age (±6 years) and gender. Primary outcome measures were cumulative prosthetic (both interim and definitive) and implant survival (Kaplan-Meier product limit estimator). Secondary outcome measures were marginal bone levels at 5 years (through periapical radiographs and using the patient as unit of analysis) and the incidence of mechanical and biological complications. Differences in survival curves (log-rank test), marginal bone level (Mann-Whitney U test), and complications (chi-square test) were compared inferentially between the two groups using the patient as unit of analysis with significance level set at p ≤ 0.05. RESULTS No dropouts occurred. Prosthetic survival was 100%. Five patients lost 5 implants (G1: n = 3; G2: n = 2) before 1 year, rendering an estimated cumulative survival rate of 95.5% (G1: 94.5%; G2: 96.4%; Kaplan-Meier, p = 0.645, nonsignificant). The average (SD) marginal bone level was 1.56 mm (0.89) at 5 years [G1: 1.45 mm (0.77); G2: 1.67 mm (0.99); p = 0.414]. The incidence rate of mechanical complications (in both interim and definitive prostheses) was 0.16 and 0.13 for G1 and G2, respectively (p = 0.032). The incidence rate of biological complications was 0.06 and 0.05 for G1 and G2, respectively (p = 0.669). CONCLUSIONS Based on the results, rehabilitating double- or single-arch edentulous patients did not yield significant differences on survival curves. The incidence of mechanical complications was significantly higher for double-arch rehabilitated patients but nevertheless, these mechanical complications did not affect the long-term survival of either the prostheses or the implants.
Collapse
Affiliation(s)
- Paulo Maló
- Oral Surgery Department, Malo Clinic, Lisbon, Portugal
| | | | - Armando Lopes
- Oral Surgery Department, Malo Clinic, Lisbon, Portugal
| | | |
Collapse
|