1
|
Jain S, Hemavardhini A, Ranjan M, Pasricha N, Thakar SS, Soni KJ, Hassan S, Goyal K, Singh D. Evaluation of Survival Rates of Dental Implants and the Risk Factors: A Retrospective Follow-Up Study. Cureus 2024; 16:e55360. [PMID: 38562355 PMCID: PMC10982840 DOI: 10.7759/cureus.55360] [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: 01/01/2024] [Accepted: 02/28/2024] [Indexed: 04/04/2024] Open
Abstract
Introduction The current research sets out to assess implant early survival rates and identify relevant parameters. Methods The research spanned the years 2021 and 2022 and included all individuals who had dental implants. Various criteria, such as age, sex, maxilla/mandible, implant location, immediate implant, implant diameter, implant length, and others, were used to determine the implant survival rate in the research. A multiple logistic regression model was used to show the risk variables for early survival rates of implants, and components with p < 0.05 were further included after the Chi-square test was employed to filter them. Results The current research included 128 patients who had a single implant procedure, including 70 males and 58 females. The early survival rate was 91.40%, and 117 implants were retained after implantation. Risk variables that were shown to be associated with early survival rates were patients aged 30-60 years (OR: 2.542), immediate implant placement (OR: 3.742), and implant length less than 10 mm (OR: 3.972). Conclusions Age, tooth location, implant length, and immediate implantation were risk variables that contributed to our subjects' above 91% early survival rate of implants.
Collapse
Affiliation(s)
- Shailesh Jain
- Department of Prosthodontics and Crown and Bridge, Sharda University, Greater Noida, IND
| | - Addugala Hemavardhini
- Department of Prosthodontics and Crown and Bridge, G.Pulla Reddy Dental College & Hospital, Kurnool, IND
| | - Maitreyi Ranjan
- Department of Microbiology, School of Dental Sciences, Sharda University, Greater Noida, IND
| | - Neeta Pasricha
- Department of Prosthodontics and Oral Implantology, Institute of Technology & Science (I.T.S) Dental College, Muradnagar, IND
| | - Sahil S Thakar
- Department of Public Health Dentistry, Himachal Dental College, Mandi, IND
| | - Keyur J Soni
- Department of Orthodontics and Dentofacial Orthopedics, Ahmedabad Dental College & Hospital, Ahmedabad, IND
| | - Sahba Hassan
- Department of Prosthodontics and Crown and Bridge, DJ College of Dental Sciences & Research, Ghaziabad, IND
| | - Keshav Goyal
- Department of Prosthodontics and Crown and Bridge, Shree Bankey Bihari Dental College, Ghaziabad, IND
| | - Diksha Singh
- Department of Periodontics and Implantology, Shree Bankey Bihari Dental College, Ghaziabad, IND
| |
Collapse
|
2
|
Larsson A, Manuh J, Chrcanovic BR. Risk Factors Associated with Failure and Technical Complications of Implant-Supported Single Crowns: A Retrospective Study. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1603. [PMID: 37763722 PMCID: PMC10535933 DOI: 10.3390/medicina59091603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 08/25/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023]
Abstract
Background and Objectives: Implant-supported single crowns have become a routine approach for the replacement of missing single teeth, being considered as one of the most common ways of rehabilitation when adjacent teeth are healthy. The present retrospective study aimed to investigate the risk factors possibly associated with failure and technical complications of implant-supported single crowns and their supporting implants. Materials and Methods: Patients treated at one faculty (2009-2019) were considered for inclusion. Complications investigated included ceramic fracture/chipping, crown loss of retention/mobility, crown failure/fracture, loosening/loss/fracture of prosthetic screw, and implant failure/fracture. Any condition/situation that led to the removal/replacement of crowns (implant failure not included) was considered prosthesis failure. Univariate/multivariate Cox regression models were used to evaluate the associations between clinical covariates and failure. Results: 278 patients (358 crowns) were included. Mean ± SD follow-up was 56.5 ± 29.7 months. Seven implants (after a mean of 76.5 ± 43.7 months) and twenty crowns (21.3 ± 23.5 months) failed. The cumulative survival rate (CSR) for crowns was 93.5% after 5, remaining at 92.2% between 6 and 11 years. The most common reasons for crown failure were porcelain large fracture (n = 6), crown repeatedly loose (n = 6), and porcelain chipping (n = 5). Men and probable bruxism were identified in the Cox regression model as being associated with crown failure. The most common observed technical complications were mobility of the crown and chipping of the ceramic material, with the latter being observed even in crowns manufactured of monolithic zirconia. Cases with at least one technical complication (not considering loss of screw hole sealing) were more common among probable bruxers than in non-bruxers (p = 0.002). Cases of ceramic chipping were more common among bruxers than in non-bruxers (p = 0.014, log-rank test). Conclusions: Probable bruxism and patient's sex (men) were factors associated with a higher risk of failure of implant-supported single crowns.
Collapse
Affiliation(s)
- Adam Larsson
- Faculty of Odontology, Malmö University, 214 21 Malmö, Sweden; (A.L.); (J.M.)
| | - Justice Manuh
- Faculty of Odontology, Malmö University, 214 21 Malmö, Sweden; (A.L.); (J.M.)
| | - Bruno Ramos Chrcanovic
- Department of Prosthodontics, Faculty of Odontology, Malmö University, 214 21 Malmö, Sweden
| |
Collapse
|
3
|
Oh JH, Pyo SW, Chang JS, Kim S. Up to a 15-Year Survival Rate and Marginal Bone Resorption of 1780 Implants with or without Microthreads: A Multi Center Retrospective Study. J Clin Med 2023; 12:jcm12062425. [PMID: 36983425 PMCID: PMC10057595 DOI: 10.3390/jcm12062425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 03/12/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023] Open
Abstract
The effect of microthreads at the implant neck on the amount of marginal bone resorption is controversial. This multicenter retrospective study compared the implant survival rate and amount of marginal bone resorption between two platform-switching internal connection implant systems with or without microthreads. Patient-related (age and sex), surgery-related (implant installation site, type, diameter, and length), and prosthesis-related (prosthesis type) data were collected from patient charts from the implant placement surgery to the final recall visit. A total of 1780 implants, including 1379 with microthreads and 401 without microthreads, were placed in 804 patients. For implants with and without microthreads, the longest follow-up period after prosthesis delivery was 15 and 6 years, respectively. Twenty implants failed during the 15-year follow-up period (98.8% survival rate) due to failed osseointegration, peri-implantitis, implant fractures, and non-functioning implants. The mean marginal bone loss was < 0.1 mm for both implant systems at the 1-year follow-up and 0.18 mm and 0.09 mm at the 4-year follow-up for implants with and without microthreads, respectively, without statistical significance. Microthreads did not significantly affect the amount of marginal bone loss or the implant survival rate for implants with an internal connection with a platform-switching design.
Collapse
Affiliation(s)
- Ji-Hwan Oh
- Graduate School, College of Dentistry, Yonsei University, Seoul 03722, Republic of Korea
| | - Se-Wook Pyo
- Department of Prosthodontics, Gangnam Severance Dental Hospital, College of Dentistry, Yonsei University, Seoul 06273, Republic of Korea
| | - Jae-Seung Chang
- Department of Prosthodontics, Gangnam Severance Dental Hospital, College of Dentistry, Yonsei University, Seoul 06273, Republic of Korea
| | - Sunjai Kim
- Department of Prosthodontics, Gangnam Severance Dental Hospital, College of Dentistry, Yonsei University, Seoul 06273, Republic of Korea
| |
Collapse
|
4
|
梁 峰, 吴 敏, 邹 立. [Clinical observation of the curative effect after 5-year follow-up of single tooth implant-supported restorations in the posterior region]. BEIJING DA XUE XUE BAO. YI XUE BAN = JOURNAL OF PEKING UNIVERSITY. HEALTH SCIENCES 2021; 53:970-976. [PMID: 34650304 PMCID: PMC8517672 DOI: 10.19723/j.issn.1671-167x.2021.05.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Indexed: 06/13/2023]
Abstract
OBJECTIVE To analyze the clinical curative effect after 5-year follow-up of single tooth implant-supported restorations in the posterior region. METHODS In the study, patients with single tooth implant-supported restorations in the posterior region after loading 5-year in the Second Clinical Division of Peking University School and Hospital of Stomatology from October 2005 to May 2010 was enrolled. The implant survival rate, prosthetic conditions (including the structural integrity or loosening of the prosthesis, the retention of the materials used to fill access holes of screw-retained implant crowns, loosening or fractures of the implant abutment or screw) and marginal bone lever level around implants were determined by clinical and radiographic examination. RESULTS The study was composed of 215 patients, the mean age was 48.6 years (range: 27 to 71), and 321 soft tissue implants were inserted. There were 9 implants loose and lost during the visit, the cumulative success rate was 97.2%. In the 312 remaining implants, 120 implants were placed in the upper jaws (38.5%) and 192 in the lower jaws (61.5%). Three different diameters as 3.3 mm (5 implants), 4.1 mm (115 implants) and 4.8 mm (192 implants) and three different lengths as 8 mm (21 implants), 10 mm (206 implants) and 12 mm (85 implants) were used, respectively. 277 (88.8%) cement-retained and 35 (11.2%) screw-retained implant-supported single crowns were made. The marginal bone loss (MBL) around dental implants after loading 5 years in the mesial and distal sides were (0.73±0.25) mm and (0.78±0.26) mm, respectively. There was no significant difference among MBL and bone quality, implant type, angle of abutment, prosthodontic type, crown-to-implant ratio, gender, and age of the patients (P > 0.05). The major mechanical complications after restoration involved loosening (8.6%) and fracture (2.9%) of the crown retainer screw, loss of resin covering the screw (11.4%), and the most frequent mechanical complications were loss of crown retention (14.1%) and fracture of porcelain (13.8%). The incidence of loss of crown retention was correlated with insufficient clinical crown height or using angle abutment (P < 0.05). CONCLUSION After loading 5 years, the bone level around the soft-tissue-implant placed in posterior region was stable. To minimize the frequency of mechanical complications after restoration, protocols must be established from diagnosis to the completion of treatment and follow up of implant-supported prostheses, especially in terms of adequate technical steps and careful radiographic evaluation of the components.
Collapse
Affiliation(s)
- 峰 梁
- />北京大学口腔医学院·口腔医院,第二门诊部 国家口腔疾病临床医学研究中心 口腔数字化医疗技术和材料国家工程实验室 口腔数字医学北京市重点实验室,北京 100101Second Clinical Division, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100101, China
| | - 敏节 吴
- />北京大学口腔医学院·口腔医院,第二门诊部 国家口腔疾病临床医学研究中心 口腔数字化医疗技术和材料国家工程实验室 口腔数字医学北京市重点实验室,北京 100101Second Clinical Division, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100101, China
| | - 立东 邹
- />北京大学口腔医学院·口腔医院,第二门诊部 国家口腔疾病临床医学研究中心 口腔数字化医疗技术和材料国家工程实验室 口腔数字医学北京市重点实验室,北京 100101Second Clinical Division, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100101, China
| |
Collapse
|
5
|
Pjetursson BE, Sailer I, Latyshev A, Rabel K, Kohal RJ, Karasan D. A systematic review and meta-analysis evaluating the survival, the failure, and the complication rates of veneered and monolithic all-ceramic implant-supported single crowns. Clin Oral Implants Res 2021; 32 Suppl 21:254-288. [PMID: 34642991 PMCID: PMC9293296 DOI: 10.1111/clr.13863] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 08/04/2021] [Indexed: 12/28/2022]
Abstract
Objective To assess the survival, failure, and complication rates of veneered and monolithic all‐ceramic implant‐supported single crowns (SCs). Methods Literature search was conducted in Medline (PubMed), Embase, and Cochrane Central Register of Controlled Trials until September 2020 for randomized, prospective, and retrospective clinical trials with follow‐up time of at least 1 year, evaluating the outcome of veneered and/or monolithic all‐ceramic SCs supported by titanium dental implants. Survival and complication rates were analyzed using robust Poisson's regression models. Results Forty‐nine RCTs and prospective studies reporting on 57 material cohorts were included. Meta‐analysis of the included studies indicated an estimated 3‐year survival rate of veneered‐reinforced glass‐ceramic implant‐supported SCs of 97.6% (95% CI: 87.0%–99.6%). The estimated 3‐year survival rates were 97.0% (95% CI: 94.0%–98.5%) for monolithic‐reinforced glass‐ceramic implant SCs, 96.9% (95% CI: 93.4%–98.6%) for veneered densely sintered alumina SCs, 96.3% (95% CI: 93.9%–97.7%) for veneered zirconia SCs, 96.1% (95% CI: 93.4%–97.8%) for monolithic zirconia SCs and only 36.3% (95% CI: 0.04%–87.7%) for resin‐matrix‐ceramic (RMC) SCs. With the exception of RMC SCs (p < 0.0001), the differences in survival rates between the materials did not reach statistical significance. Veneered SCs showed significantly (p = 0.017) higher annual ceramic chipping rates (1.65%) compared with monolithic SCs (0.39%). The location of the SCs, anterior vs. posterior, did not influence survival and chipping rates. Conclusions With the exception of RMC SCs, veneered and monolithic implant‐supported ceramic SCs showed favorable short‐term survival and complication rates. Significantly higher rates for ceramic chipping, however, were reported for veneered compared with monolithic ceramic SCs.
Collapse
Affiliation(s)
- Bjarni Elvar Pjetursson
- Department of Reconstructive Dentistry, Faculty of Odontology, University of Iceland, Reykjavik, Iceland.,Division of Fixed Prosthodontics and Biomaterials, University Clinics for Dental Medicine, University of Geneva, Geneva, Switzerland
| | - Irena Sailer
- Division of Fixed Prosthodontics and Biomaterials, University Clinics for Dental Medicine, University of Geneva, Geneva, Switzerland
| | - Andrey Latyshev
- Division of Fixed Prosthodontics and Biomaterials, University Clinics for Dental Medicine, University of Geneva, Geneva, Switzerland.,Department of Maxillofacial, Oral and Plastic Surgery, Faculty of Dentistry, Moscow State University of Medicine and Dentistry, Moscow, Russia
| | - Kerstin Rabel
- Department of Prosthetic Dentistry, Faculty of Medicine, Center for Dental Medicine, Medical Center - University of Freiburg, Freiburg, Germany
| | - Ralf-Joachim Kohal
- Department of Prosthetic Dentistry, Faculty of Medicine, Center for Dental Medicine, Medical Center - University of Freiburg, Freiburg, Germany
| | - Duygu Karasan
- Division of Fixed Prosthodontics and Biomaterials, University Clinics for Dental Medicine, University of Geneva, Geneva, Switzerland
| |
Collapse
|
6
|
Staehle HJ, Sekundo C, Hieronymus H, Büsch C, Frese C. Replacing single missing teeth in the posterior region using direct composite restorations: Survival and clinical quality. J Dent 2021; 113:103754. [PMID: 34333054 DOI: 10.1016/j.jdent.2021.103754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 07/14/2021] [Accepted: 07/25/2021] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVES The aim of this pilot study was to test the survival and clinical quality of frugal methods to replace single missing teeth in the posterior region with direct composite restorations of different categories. METHODS We performed a detailed intraoral examination and assessed the clinical quality of the restorations according to modified FDI-criteria. Irreparable loss of a restoration was recorded as "failure" (F). Damaged restorations that could be repaired were defined as "survival with repair" (SR). Restorations without any unfavorable events were classified as "success" (S). RESULTS The average follow-up time of restorations was 5.07 ± 5.24 years with 15.1% having a follow-up time of more than 10 years. Three unfavorable events were documented. Two restorations (3.8%) were classified as F, one restoration (1.9%) as SR, and the remaining 50 restorations (94.3%) as S. The estimated overall and functional survival rate at 5 years using the Kaplan-Meier method was 96.2% (confidence interval [CI]:85.5% to 99%) and 98% (CI:86.9% to 99.7%), respectively. Ninety-four percent of the restorations were evaluated as good or excellent clinical quality. Most restorations showed no periodontal complications, however, restorations in the mandible showed significantly more plaque accumulation (p=0.002). CONCLUSIONS These conservative frugal methods to replace single missing teeth in the posterior region showed promising clinical survival data and quality parameters. CLINICAL SIGNIFICANCE Direct composite restorations of different categories can be considered as additional treatment option for gap closure in specific clinical situations.
Collapse
Affiliation(s)
- Hans Joerg Staehle
- Clinic for Oral, Dental and Maxillofacial Diseases, University Hospital Heidelberg, Department of Conservative Dentistry, Heidelberg, Germany
| | - Caroline Sekundo
- Clinic for Oral, Dental and Maxillofacial Diseases, University Hospital Heidelberg, Department of Conservative Dentistry, Heidelberg, Germany
| | - Hanna Hieronymus
- Clinic for Oral, Dental and Maxillofacial Diseases, University Hospital Heidelberg, Department of Conservative Dentistry, Heidelberg, Germany
| | - Christopher Büsch
- Institute of Medical Biometry and Informatics, University of Heidelberg, Heidelberg, Germany
| | - Cornelia Frese
- Clinic for Oral, Dental and Maxillofacial Diseases, University Hospital Heidelberg, Department of Conservative Dentistry, Heidelberg, Germany.
| |
Collapse
|
7
|
Segalla DB, Villarinho EA, Correia ARM, Vigo Á, Shinkai RSA. A within-subject comparison of short implants in the posterior region: retrospective study of up to 10 years. J Adv Prosthodont 2021; 13:172-179. [PMID: 34234927 PMCID: PMC8250189 DOI: 10.4047/jap.2021.13.3.172] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 06/17/2021] [Accepted: 06/21/2021] [Indexed: 11/24/2022] Open
Abstract
PURPOSE This intra-patient retrospective study of up to 10 years evaluated the clinical success and risk factors of 6- and 8-mm long implants and their respective prostheses. MATERIALS AND METHODS The sample consisted of patients treated at a Military Polyclinic dental service, who received both 6- and 8-mm long tissue level implants in the posterior region of the same arch. Data were collected from the dental charts, clinical and radiographic exams, self-report of sleep bruxism, measurement of maximum occlusal force, and clinical crown-to-implant (C/I) ratio. Data were analyzed by descriptive and inferential statistics with univariate and hierarchical multivariate models, at the 0.05 significance level. RESULTS The 30 patients (27 women) had 85 implants and 83 prostheses. Two implants were lost before prosthesis installation (implant survival: 97.6%). Ten events of prosthetic complication (screw tightening loss) occurred in five patients (success rate: 87.9%) in a single moment. Only the variable C/I ratio had a significant effect for repairable prosthesis complication (P<.05). CONCLUSION The results suggest that 6- and 8-mm long implants have similar long-term clinical success for implants and prostheses.
Collapse
Affiliation(s)
- Douglas Blum Segalla
- Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil.,Military Policlinic of Porto Alegre, Porto Alegre, Brazil
| | | | - André Ricardo Maia Correia
- Center for Interdisciplinary Research in Health, Faculty of Dental Medicine, Universidade Católica Portuguesa, Portugal
| | - Álvaro Vigo
- Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | | |
Collapse
|
8
|
French D, Ofec R, Levin L. Long term clinical performance of 10 871 dental implants with up to 22 years of follow-up: A cohort study in 4247 patients. Clin Implant Dent Relat Res 2021; 23:289-297. [PMID: 33768695 PMCID: PMC8359846 DOI: 10.1111/cid.12994] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 03/10/2021] [Accepted: 03/11/2021] [Indexed: 02/06/2023]
Abstract
Background The present retrospective study was aimed to assess the long‐term clinical performance of dental implants in a cohort study of 4247 patients. Methods A longitudinal observational cohort study was done on all implants performed by a single periodontist from July 1995 to April 2019. The main outcome variables of this study were implant failure and marginal bone level around implants. Results The study participants received a total of 10 871 implants with a mean of 2.56 implants per patient. The cohort was followed‐up to 22.2 years (mean = 4.5 ± 4.2). Among the 4247 patients of the current study, 140 patients (3.3%) experienced a combined total of 178 implant failures. According to life table analysis, at the implant level the cumulative survival rate at 3, 5, 10, and 15 years was 98.9%, 98.5%, 96.8%, and 94.0%, respectively while at patient level was 97.4%, 96.7%, 92.5%, and 86% at 3, 5, 10, and 15 years. Patients with multiple units were at a greater risk for having an implant failure. Baseline bone level was 0.09 ± 0.28 mm while at 8–10 years the mean bone level was 0.49 ± 0.74 mm. The incidence of peri‐implant mucositis at the implant level was 9.4% at 2–3 years, 9.3% at 4–5 years, 12.1% at 6–7 years, and 11.9% at 8–10 years. The incidence of peri‐implantitis was 2%, 2.6%, 3.2%, and 7.1% at 2–3, 4–5, 6–7, and 8–10 years, respectively. Cigarette smoking and diabetes mellitus were positively correlated with implant failure. Conclusions Though the results are promising and encouraging in terms of survival and bone level over time, it is important to emphasize the potential risk factors and consider them prior to dental implant placement.
Collapse
Affiliation(s)
- David French
- Department of Periodontics, Faculty of Dentistry, University of British Columbia, Vancouver, Canada.,Private Practice, Calgary, Canada
| | - Ronen Ofec
- Department of Statistics and Operations Research, Tel-Aviv University, Tel-Aviv, Israel.,Private Dental Practice, Tel-Aviv, Israel
| | - Liran Levin
- Faculty of Medicine and Dentistry, University of Alberta, Alberta, Canada
| |
Collapse
|
9
|
Gjelvold B, Kisch J, Chrcanovic BR. A Randomized Clinical Trial Comparing Immediate Loading and Delayed Loading of Single-Tooth Implants: 5-Year Results. J Clin Med 2021; 10:jcm10051077. [PMID: 33807569 PMCID: PMC7961588 DOI: 10.3390/jcm10051077] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 03/01/2021] [Accepted: 03/02/2021] [Indexed: 11/16/2022] Open
Abstract
The aim of this prospective randomized clinical study was to compare the clinical treatment outcome for single dental implants submitted to either immediate loading (IL) or delayed loading (DL) after 5 years of follow-up. Fifty patients with a missing maxillary tooth (15–25) were randomly allocated to either the IL or DL. The treatment procedures included implant installation in healed sites, temporary screw-retained crown and replacement with a permanent single implant crown. The two groups were evaluated with regard to implant survival, marginal bone level, papillae index, pink and white esthetic score (PES, WES). At the 5-year follow-up the implant survival rate was 100% and 95.8% for IL and DL, respectively. Implant success rate was 91.7% and 83.3% for IL and DL, respectively. The mean ± SD marginal bone loss for IL and DL was −0.50 ± 0.73 mm and −0.54 ± 0.65 mm, respectively. (p = 0.782). Statistically significant less marginal bone loss was found non-smokers (p = 0.021). No statistically significant differences were found for IL and DL concerning papillae index PES and WES after 5 years. This study suggests that implant-supported single crowns in the maxillary aesthetic zone can present similar results with respect to either IL or DL after 5 years.
Collapse
Affiliation(s)
- Björn Gjelvold
- Clinic for Prosthodontics, Centre of Dental Specialist Care, 214 27 Malmö, Sweden; (B.G.); (J.K.)
| | - Jenö Kisch
- Clinic for Prosthodontics, Centre of Dental Specialist Care, 214 27 Malmö, Sweden; (B.G.); (J.K.)
| | - Bruno R. Chrcanovic
- Department of Prosthodontics, Faculty of Odontology, Malmö University, 214 21 Malmö, Sweden
- Correspondence: ; Tel.: +46-725541545
| |
Collapse
|
10
|
Long-Term Survival and Complication Rates of Porcelain Laminate Veneers in Clinical Studies: A Systematic Review. J Clin Med 2021; 10:jcm10051074. [PMID: 33807504 PMCID: PMC7961608 DOI: 10.3390/jcm10051074] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 03/02/2021] [Accepted: 03/03/2021] [Indexed: 12/27/2022] Open
Abstract
The presented study aimed to assess the survival rate of porcelain laminate veneers (PLV) based on a systematic review of the literature. An electronic search was last updated in February 2021. Eligibility criteria included clinical series of patients rehabilitated with PLVs published in the last 25 years, with a minimum follow-up of 3 years. Survival analysis methods were applied. Twenty-five studies were included, with 6500 PLVs. The 10-year estimated cumulative survival rate (CSR) of PLVs was 95.5%. The 10-year CSR of PLVs when fracture, debonding, occurrence of secondary caries, and need of endodontic treatment were considered as isolated reasons for failure were 96.3%, 99.2%, 99.3%, and 99.0%, respectively. PLVs without incisal coverage had a higher failure rate than PLVs with incisal coverage. Non-feldspathic PLVs performed better than feldspathic PLVs. As a conclusion, the 10-year CSR of PLVs was 95.5%, when fracture, debonding, occurrence of secondary caries, and need of endodontic treatment were considered as reasons for restoration failure. Fracture seems to be most common complication of PLVs, followed by debonding, with both more commonly happening within the first years after PLV cementation. PLVs with incisal coverage and non-feldspathic PLVs presented lower failure rates than PLVs without incisal coverage and feldspathic PLVs.
Collapse
|
11
|
Liddell RS, Ajami E, Li Y, Bajenova E, Yang Y, Davies JE. The influence of implant design on the kinetics of osseointegration and bone anchorage homeostasis. Acta Biomater 2021; 121:514-526. [PMID: 33271359 DOI: 10.1016/j.actbio.2020.11.043] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 11/05/2020] [Accepted: 11/25/2020] [Indexed: 02/06/2023]
Abstract
Titanium implants have shown considerable success in terms of achieving quick and long-lasting stability in bone through the process of osseointegration. Further work aims to improve implant success rates by modifying implant design on the nano-, micro-, and macro- scales with the goal of achieving higher levels of bone anchorage more quickly. However, the most frequently used methods of analysis do not investigate bone anchorage as a whole but as a series of discrete points, potentially missing relevant insight which could inform the effects of topography on these 3 scale ranges. Herein we utilize an asymptotic curve fitting method to obtain a biologically relevant description of reverse torque data and compare the anchorage of 12 different implant groups. Implant surface topography had a significant effect on the rate and degree of anchorage achieved during the initial bone formation period of osseointegration but was not found to influence the relative change in anchorage during bony remodeling. Threaded implants significantly decreased the time required to reach peak anchorage compared to non-threaded implants and implants with micro-topographically complex surfaces required greater torque to be removed than implants without such features. Nanotopography increased overall anchorage and decreased the time required to reach peak anchorage but to a lesser degree than microtopography or macrogeometry respectively. The curve fitting method utilized in the present study allows for a more integrated analysis of bone anchorage and permits investigation of osseointegration with respect to time, which may lead to a more targeted approach to implant design.
Collapse
Affiliation(s)
- Robert S Liddell
- Dental Research Institute, Faculty of Dentistry, University of Toronto 124 Edward Street, Toronto, Ontario, Canada, M5G 1G6
| | - Elnaz Ajami
- Zimmer Biomet Dental, Palm Beach Gardens, Florida, United States of America, 33410
| | - Yunqing Li
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, 164 College Street, Toronto, Ontario, Canada, M5S 3G9
| | - Elena Bajenova
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, 164 College Street, Toronto, Ontario, Canada, M5S 3G9
| | - Yuan Yang
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, 164 College Street, Toronto, Ontario, Canada, M5S 3G9
| | - John E Davies
- Dental Research Institute, Faculty of Dentistry, University of Toronto 124 Edward Street, Toronto, Ontario, Canada, M5G 1G6; Institute of Biomaterials and Biomedical Engineering, University of Toronto, 164 College Street, Toronto, Ontario, Canada, M5S 3G9.
| |
Collapse
|
12
|
Klinge A, Tranaeus S, Becktor J, Winitsky N, Naimi-Akbar A. The risk for infraposition of dental implants and ankylosed teeth in the anterior maxilla related to craniofacial growth, a systematic review. Acta Odontol Scand 2021; 79:59-68. [PMID: 32835562 DOI: 10.1080/00016357.2020.1807046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND The aim of the study was to evaluate a potential association between individuals with different craniofacial types or other exposures, and the risk of infraposition due to continued growth/eruption of adjacent teeth in the anterior maxilla. MATERIALS AND METHODS This is a systematic review in which primary studies as well as other systematic reviews are scrutinised. A search of PubMed (Medline), Scopus, Web of science and Health technology assessment (HTA) organisations and a complementary handsearch was carried out. Selected studies were read in full-text by several reviewers. The quality of the included primary studies was assessed using a protocol for assessment of risk of bias in exposure studies. RESULTS The literature search resulted in 3,296 publications. Title and abstract screening yielded 25, whereof one systematic review, potential publications allocated for full-text inspection. The quality assessment resulted in a total of seven studies with a low/moderate risk of bias and four studies with a high risk of bias. CONCLUSION In conclusion, a long-term risk for infraposition of dental implants, or ankylosed teeth, among natural teeth can be observed in some cases. The predisposing factors are still not fully understood since the current scientific evidence is very limited.
Collapse
Affiliation(s)
- Anna Klinge
- Department of Oral and Maxillofacial Surgery and Oral Medicine, Malmö University, Malmö, Sweden
| | - Sofia Tranaeus
- Health Technology Assessment-Odontology (HTA-O), Malmö University, Malmö, Sweden
- Department of Dental Medicine, Karolinska institutet, Stockholm, Sweden
| | - Jonas Becktor
- Department of Oral and Maxillofacial Surgery and Oral Medicine, Malmö University, Malmö, Sweden
| | - Nicole Winitsky
- Folktandvården Eastmaninstitutet. Public Dental Health, Stockholm, Sweden
| | - Aron Naimi-Akbar
- Department of Oral and Maxillofacial Surgery and Oral Medicine, Malmö University, Malmö, Sweden
- Health Technology Assessment-Odontology (HTA-O), Malmö University, Malmö, Sweden
- Department of Dental Medicine, Karolinska institutet, Stockholm, Sweden
- Folktandvården Eastmaninstitutet. Public Dental Health, Stockholm, Sweden
| |
Collapse
|
13
|
Chrcanovic BR, Ghiasi P, Kisch J, Lindh L, Larsson C. Retrospective study comparing the clinical outcomes of bar-clip and ball attachment implant-supported overdentures. J Oral Sci 2020; 62:397-401. [PMID: 32848099 DOI: 10.2334/josnusd.19-0412] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
The aim of this study was to compare the clinical outcomes of implant-supported overdentures (ODs) with either bar-clip or ball attachments. The implant, prosthesis failure, and technical complications were the outcomes analyzed in this retrospective clinical study conducted in a specialty clinic. Seventy-five patients with 242 implants supported by 76 ODs (36 maxillary, 40 mandibular) were included in the study and followed up for 88.8 ± 82.9 months (mean ± standard deviation). Bar-clip and ball attachments were used in 78.9% and 21.1% of the cases, respectively. Forty-three implant failures (17.8%) in 17 prostheses (17/76; 22.4%) were observed in this study. The average period of implant failure was 43.3 ± 41.0 months, and most of them were maxillary turned implants. The bar-clip system demonstrated more complications in the attachment parts compared to the ball attachment system. Poor retention of the prosthesis was similar between the two systems. Loss of implants resulted in the failure of 10 ODs in this study. ODs opposed by natural dentition or fixed prostheses presented with more complications. The Cox proportional hazards model did not show a significant effect on prosthesis failure for any of the factors. These findings indicated that patients with ODs need constant maintenance follow-ups to address the technical complications and perform prosthodontic maintenance regardless of the attachment system used.
Collapse
Affiliation(s)
| | - Peyman Ghiasi
- Department of Prosthodontics, Faculty of Odontology, Malmö University
| | - Jenö Kisch
- Department of Prosthodontics, Faculty of Odontology, Malmö University
| | - Liselott Lindh
- Department of Prosthodontics, Faculty of Odontology, Malmö University
| | - Christel Larsson
- Department of Prosthodontics, Faculty of Odontology, Malmö University
| |
Collapse
|
14
|
Blasi G, Blasi I, Blasi A, Elnabawi O, Murphy KG, Stappert D. The digital POIP concept: Preorthodontic implant placement. J ESTHET RESTOR DENT 2020; 32:545-553. [PMID: 32613725 DOI: 10.1111/jerd.12601] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 04/27/2020] [Accepted: 05/04/2020] [Indexed: 11/29/2022]
Abstract
OBJECTIVE The aim of this report is to present an interdisciplinary treatment involving periodontics, orthodontics, dental implant placement, and prosthodontics with a fully digital dentistry approach. CLINICAL CONSIDERATIONS The patient presented with an edentulous ridge on the area of the lower left lateral incisor as well as gingival recession on the adjacent teeth. After performing a digital orthodontic setup and indirect bonding bracket placement, a dental implant placement was carried out before orthodontic treatment in combination with guided bone regeneration (GBR), connective tissue graft (CTG) and periodontal accelerated osteogenic orthodontics (PAOO). In a 6-month period, orthodontic treatment was fully completed and the dental implant was restored at 8 months. Following one-and-a-half years, significant gingival recession reduction was accomplished and soft tissue augmentation around the dental implant appeared stable with a good functional and esthetic result. CONCLUSION The use of the digital POIP concept with a proper diagnosis and careful planning is crucial for reducing treatment time and enhancing precision.
Collapse
Affiliation(s)
- Gonzalo Blasi
- Division of Periodontology, University of Maryland School of Dentistry, Baltimore, Maryland, USA.,Department of Periodontics, Universitat Internacional de Catalunya, Barcelona, Spain
| | - Ignacio Blasi
- Department of Orthodontics, University of Maryland School of Dentistry, Baltimore, Maryland, USA.,Private Practice, Barcelona, Spain
| | - Alvaro Blasi
- Private Practice, Barcelona, Spain.,Department of Restorative Sciences, Augusta University, Augusta, Georgia, USA
| | - Omar Elnabawi
- Department of Orthodontics, University of Maryland School of Dentistry, Baltimore, Maryland, USA
| | - Kevin G Murphy
- Division of Periodontology, University of Maryland School of Dentistry, Baltimore, Maryland, USA
| | - Dina Stappert
- Department of Orthodontics, University of Maryland School of Dentistry, Baltimore, Maryland, USA
| |
Collapse
|
15
|
Chrcanovic BR, Kisch J, Larsson C. Analysis of technical complications and risk factors for failure of combined tooth-implant-supported fixed dental prostheses. Clin Implant Dent Relat Res 2020; 22:523-532. [PMID: 32524744 DOI: 10.1111/cid.12927] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 05/05/2020] [Accepted: 05/18/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND The oral rehabilitation with fixed restorations supported by the combination of teeth and dental implants has been advocated in some cases. PURPOSE To assess the clinical outcomes of these prostheses. Fixed restorations supported by the combination of teeth and dental implants. MATERIALS AND METHODS This retrospective study included all patients treated with combined tooth-implant-supported fixed dental prostheses (FDPs) at one specialist clinic. Abutment/prosthesis failure and technical complications were the outcomes analyzed. RESULTS A total of 85 patients with 96 prostheses were included, with a mean follow-up of 10.5 years. Twenty prostheses failed. The estimated cumulative survival rate was 90.7%, 84.8%, 69.9%, and 66.2% at 5, 10, 15, and 20 years, respectively. The failure of tooth and/or implant abutments in key positions affected the survival of the prostheses. There were seven reasons for prostheses failure, with the loss of abutments exerting a significant influence. Bruxism was possibly associated with failures. Prostheses with cantilevers did not show a statistically significant higher failure rate. No group had a general higher prevalence of technical complications in comparison to the other groups. CONCLUSIONS Although combined tooth-implant-supported FDPs are an alternative treatment option, this study has found that across 20 years of service nearly 35% the prostheses may fail.
Collapse
Affiliation(s)
| | - Jenö Kisch
- Department of Prosthodontics, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Christel Larsson
- Department of Prosthodontics, Faculty of Odontology, Malmö University, Malmö, Sweden
| |
Collapse
|
16
|
Chrcanovic BR, Kisch J, Larsson C. Retrospective evaluation of implant‐supported full‐arch fixed dental prostheses after a mean follow‐up of 10 years. Clin Oral Implants Res 2020; 31:634-645. [PMID: 32249972 DOI: 10.1111/clr.13600] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 03/12/2020] [Accepted: 03/18/2020] [Indexed: 12/19/2022]
Affiliation(s)
- Bruno R. Chrcanovic
- Department of Prosthodontics Faculty of Odontology Malmö University Malmö Sweden
| | - Jenö Kisch
- Department of Prosthodontics Faculty of Odontology Malmö University Malmö Sweden
| | - Christel Larsson
- Department of Prosthodontics Faculty of Odontology Malmö University Malmö Sweden
| |
Collapse
|
17
|
Chrcanovic BR, Kisch J, Larsson C. Retrospective clinical evaluation of 2‐ to 6‐unit implant‐supported fixed partial dentures: Mean follow‐up of 9 years. Clin Implant Dent Relat Res 2020; 22:201-212. [PMID: 32157812 DOI: 10.1111/cid.12889] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 01/10/2020] [Accepted: 01/24/2020] [Indexed: 12/15/2022]
Affiliation(s)
- Bruno R. Chrcanovic
- Department of Prosthodontics, Faculty of OdontologyMalmö University Malmö Sweden
| | - Jenö Kisch
- Department of Prosthodontics, Faculty of OdontologyMalmö University Malmö Sweden
| | - Christel Larsson
- Department of Prosthodontics, Faculty of OdontologyMalmö University Malmö Sweden
| |
Collapse
|