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Pei X, Liu X, Iao S, Ma F, Li H, Sun F. Accuracy of 3 calibration methods of computer-assisted dynamic navigation for implant placement: An in vitro study. J Prosthet Dent 2024; 131:668-674. [PMID: 35431027 DOI: 10.1016/j.prosdent.2022.03.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 03/11/2022] [Accepted: 03/14/2022] [Indexed: 11/27/2022]
Abstract
STATEMENT OF PROBLEM Dynamic navigation for implant placement has been reported to be more accurate than freehand surgery. However, the accuracy of the calibration methods used for navigation in partially edentulous individuals with distal extensions remains unknown. PURPOSE The purpose of this in vitro study on dental models was to evaluate the accuracy of 3 calibration methods of dynamic navigation for implant placement in the distal extension of partially edentulous arches. MATERIAL AND METHODS Eleven standardized polyurethane mandibular models with distal extensions were prepared. The left first molar, second molar, and second premolar from each model (33 tooth sites) were randomly assigned to 1 of the 3 calibration methods: U-shaped tube embedded with radiopaque markers, anatomic tooth cusps, and bone markers with the random number table method. Preoperative and postoperative cone beam computed tomography images were obtained for deviation analyses. The primary outcomes were 3-dimensional (3D) deviation at the implant platform and apex and angular deviation. Differences among the test groups were analyzed by using a 1-way analysis of variance (ANOVA) and the least significant difference (LSD) post hoc test (α=.05). RESULTS The mean ±standard deviation 3D deviations were 0.78 ±0.34, 1.86 ±0.91, and 1.44 ±0.57 mm at the implant platform and 0.79 ±0.35, 2.19 ±1.01, and 1.49 ±0.50 mm at the apex in the U-shaped tube, tooth cusp, and bone marker groups, respectively. The 3D deviations at the implant platform and apex were significantly different among the groups (P<.01). The angular deviation was 1.36 ±0.54, 2.95 ±2.07, and 2.92 ±2.45 degrees, with no significant differences among the groups (P=.092). CONCLUSIONS In the dynamic navigation of implant placement in the distal extension of partially edentulous arches, the U-shaped tube calibration with radiopaque markers was more accurate than the anatomic tooth cusp or bone marker calibration.
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Affiliation(s)
- Xiyan Pei
- Lecturer, First Clinic Division, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, PR China
| | - Xiaoqiang Liu
- Associate Professor, Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing, PR China
| | - Siniong Iao
- PhD student, Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing, PR China
| | - Feifei Ma
- Lecturer, First Clinic Division, Peking University School and Hospital of Stomatology, Beijing, PR China
| | - Hong Li
- Lecturer, First Clinic Division, Peking University School and Hospital of Stomatology, Beijing, PR China
| | - Feng Sun
- Clinical Professor, First Clinic Division, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, PR China.
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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.
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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
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Velasco-Ortega E, Carretero-Barrado L, Moreno-Muñoz J, Ortiz-García I, Núñez-Márquez E, Rondón-Romero JL, López-López J, Jiménez-Guerra Á, Monsalve-Guil L. Immediate Loading of Implants with Fixed Rehabilitations in Geriatric Edentulous Patients; Biological Complications. J Clin Med 2023; 12:6548. [PMID: 37892686 PMCID: PMC10607342 DOI: 10.3390/jcm12206548] [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: 09/09/2023] [Revised: 10/10/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND This study aimed to report the outcomes of the immediate loading of implants with fixed rehabilitations in edentulous geriatric patients. METHODS Edentulous geriatric patients were diagnosed with an oral examination, radiographic evaluation, and intermaxillary relations and treated with fixed rehabilitation over several implants. After immediate surgery, the implants were immediately loaded with a fully fixed prosthesis. RESULTS Twenty-four patients (20 females and 4 males) were treated using a total 210 implants. All patients (100%) had a previous history of periodontitis. Eleven patients (45.8%) were smokers. Eleven patients (45.8%) suffered from chronic medical diseases (i.e., diabetes, cardiovascular diseases). The study's clinical follow-up period extended for three years, during which thirty-three fixed prostheses were installed over the implants in 24 patients. The average marginal bone loss measured was 1.33 ± 0.17 mm. The success rate of the implants and prosthodontics being placed in this study yielded 98.5% and 97%, respectively. One patient (4.2%) showed some kind of technical complications. Eleven patients (45.8%) showed mucositis, and 25 implants (11.9%) in 10 patients (41.7%) were associated with peri-implantitis. CONCLUSIONS This study shows that the treatment of edentulous geriatric patients by immediate loading of implants with fixed rehabilitations is a clinically successful protocol but with a high prevalence of peri-implant diseases.
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Affiliation(s)
- Eugenio Velasco-Ortega
- Faculty of Dentistry, University of Seville, 41004 Sevilla, Spain; (E.V.-O.); (L.C.-B.); (J.M.-M.); (I.O.-G.); (E.N.-M.); (J.L.R.-R.); (L.M.-G.)
| | - Laura Carretero-Barrado
- Faculty of Dentistry, University of Seville, 41004 Sevilla, Spain; (E.V.-O.); (L.C.-B.); (J.M.-M.); (I.O.-G.); (E.N.-M.); (J.L.R.-R.); (L.M.-G.)
| | - Jesús Moreno-Muñoz
- Faculty of Dentistry, University of Seville, 41004 Sevilla, Spain; (E.V.-O.); (L.C.-B.); (J.M.-M.); (I.O.-G.); (E.N.-M.); (J.L.R.-R.); (L.M.-G.)
| | - Ivan Ortiz-García
- Faculty of Dentistry, University of Seville, 41004 Sevilla, Spain; (E.V.-O.); (L.C.-B.); (J.M.-M.); (I.O.-G.); (E.N.-M.); (J.L.R.-R.); (L.M.-G.)
| | - Enrique Núñez-Márquez
- Faculty of Dentistry, University of Seville, 41004 Sevilla, Spain; (E.V.-O.); (L.C.-B.); (J.M.-M.); (I.O.-G.); (E.N.-M.); (J.L.R.-R.); (L.M.-G.)
| | - José Luis Rondón-Romero
- Faculty of Dentistry, University of Seville, 41004 Sevilla, Spain; (E.V.-O.); (L.C.-B.); (J.M.-M.); (I.O.-G.); (E.N.-M.); (J.L.R.-R.); (L.M.-G.)
| | - José López-López
- Faculty of Medicine and Health Sciences (Dentistry) & Dentistry Hospital, University of Barcelona, 08907 L’Hospitalet de Llobregat, Spain
| | - Álvaro Jiménez-Guerra
- Faculty of Dentistry, University of Seville, 41004 Sevilla, Spain; (E.V.-O.); (L.C.-B.); (J.M.-M.); (I.O.-G.); (E.N.-M.); (J.L.R.-R.); (L.M.-G.)
| | - Loreto Monsalve-Guil
- Faculty of Dentistry, University of Seville, 41004 Sevilla, Spain; (E.V.-O.); (L.C.-B.); (J.M.-M.); (I.O.-G.); (E.N.-M.); (J.L.R.-R.); (L.M.-G.)
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Block MS. Maxillary Full Arch Restorations - Biological Complications: A Narrative Review Outlining Criteria for Long Term Success. J Oral Maxillofac Surg 2023; 81:1124-1134. [PMID: 37301227 DOI: 10.1016/j.joms.2023.05.008] [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: 03/06/2023] [Revised: 05/11/2023] [Accepted: 05/17/2023] [Indexed: 06/12/2023]
Abstract
PURPOSE Patients receiving full arch implant borne maxillary prostheses require functional, esthetic, and long term success. The importance of this review is to document the difficulty with implant maintenance, the prevalence of peri-implant disease, and the improvement in biologic health when using a prosthesis that can be maintained to minimize plaque. The objective is to provide surgeons with a reference to optimize surgical procedures that can result in improved hygiene and long term maintenance, as well as acceptable functional and esthetic goals. METHODS Pubmed.gov was the information source. Years reviewed included 1990-2022. Inclusion criteria included only articles in journals referenced in pubmed.gov. The reports excluded were case reports, reports that only included implant survival, and articles without a statistical analysis to generate meaningful conclusions. Biological complications included bone loss, hygiene difficulty, mucositis and recession, the incidence of peri-implantitis, and how complications related to patient co-morbidities. Data collected included outcomes of the study including statistical significance. RESULTS The search identified articles for review using terms which included full arch maxillary restorations (n = 736), long term success with full arch maxillary prostheses (n = 22), ceramic full arch restorations (n = 102), and complications with full arch restorations (n = 231). From this search, 53 articles were collated that satisfied the inclusion criteria. Factors found to be significant contributors to biological complications included bone loss and peri-implant disease, difficulty with daily hygiene access, plaque and biofilm coverage, and the need for continued maintenance for long term implant health. CONCLUSION The surgeon needs to place implants to allow a full arch maxillary prosthesis to be fabricated with full access to the implants for maintenance, which should decrease the incidence of biological complications. With excellent maintenance full arch implant restorations can have limited peri-implant disease.
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Affiliation(s)
- Michael S Block
- Private Practice, Metairie, LA; Clinical Professor, LSU School of Dentistry, Department of Oral and Maxillofacial Surgery, New Orleans, LA.
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Heller H, Beitlitum I, Goldberger T, Emodi-Perlman A, Levartovsky S. Outcomes and Complications of 33 Soft-Milled Cobalt-Chromium-Ceramic Full-Arch Screw-Retained Implant-Supported Prostheses: A Retrospective Study with up to 10-Year Follow-up. J Funct Biomater 2023; 14:jfb14030157. [PMID: 36976081 PMCID: PMC10053464 DOI: 10.3390/jfb14030157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 03/10/2023] [Accepted: 03/13/2023] [Indexed: 03/18/2023] Open
Abstract
This retrospective study assessed outcomes and complications related to implants and prostheses in edentulous patients treated with soft-milled cobalt-chromium-ceramic full-arch screw-retained implant-supported prostheses (SCCSIPs). After the final prosthesis was delivered, patients participated in an annual dental check-up program, including clinical and radiographic assessments. Outcomes of implants and prostheses were evaluated, and biological and technical complications were categorized as major or minor. Implant and prosthesis cumulative survival rates were assessed using the life table analysis. A total of twenty-five participants (mean age 63.6 ± 7.3 years) with 33 SCCSIPs were observed for a mean of 68.9 ± 27.9 months (range 1–10 years). A total of 7 out of 245 implants were lost, with no effect on prosthesis survival, leading to cumulative survival rates of 97.1% for implants and 100% for prostheses. The most recurrent minor and major biological complications were soft tissue recession (9%) and late implant failure (2.8%). Among 25 technical complications, porcelain fracture was the only major technical complication, requiring prosthesis removal (1%). Porcelain chipping was the most frequent minor technical complication, affecting 21 crowns (5.4%), which required polishing only. At the end of the follow-up, 69.7% of the prostheses were free of technical complications. Within the limitations of this study, SCCSIP showed promising clinical performance after 1–10 years.
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Affiliation(s)
- Hadas Heller
- Department of Oral Rehabilitation, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Ilan Beitlitum
- Department of Periodontology and Dental Implantology, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Tomer Goldberger
- Department of Endodontics, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Alona Emodi-Perlman
- Department of Oral Rehabilitation, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Shifra Levartovsky
- Department of Oral Rehabilitation, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
- Correspondence: ; Tel.: +972-52-3515403
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Bonfante EA, Calamita M, Bergamo ETP. Indirect restorative systems-A narrative review. J ESTHET RESTOR DENT 2023; 35:84-104. [PMID: 36688803 DOI: 10.1111/jerd.13016] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/03/2023] [Accepted: 01/04/2023] [Indexed: 01/24/2023]
Abstract
OBJECTIVE The background and clinical understanding of the properties of currently available indirect restorative systems and fabrication methods is, along with manufacturer and evidence-based literature, an important starting point to guide the clinical selection of materials for tooth and/or implant supported reconstructions. Therefore, this review explores most indirect restorative systems available in the market, especially all-ceramic, along with aspects of manufacturing process, clinical survival rates, and esthetic outcomes. OVERVIEW Progressive incorporation of new technologies in the dental field and advancements in materials science have enabled the development/improvement of indirect restorative systems and treatment concepts in oral rehabilitation, resulting in reliable and predictable workflows and successful esthetic and functional outcomes. Indirect restorative systems have evolved from metal ceramics and polymers to glass ceramics, polycrystalline ceramics, and resin-matrix ceramics, aiming to improve not only biological and mechanical properties, but especially the optical properties and esthetic quality of the reconstructions, in attempt to mimic natural teeth. CONCLUSIONS Based on several clinical research, materials, and patient-related parameters, a decision tree for the selection of indirect restorative materials was suggested to guide clinicians in the rehabilitation process. CLINICAL SIGNIFICANCE The pace of materials development is faster than that of clinical research aimed to support their use. Since no single material provides an ideal solution to every case, professionals must continuously seek information from well designed, long-term clinical trials in order to incorporate or not new materials and technological advancements.
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Affiliation(s)
- Estevam A Bonfante
- Department of Prosthodontics and Periodontology, Bauru School of Dentistry - University of São Paulo, Bauru, SP, Brazil
| | - Marcelo Calamita
- Department of Restorative Dental Sciences at the University of Florida, Gainesville, Florida, USA
| | - Edmara T P Bergamo
- Department of Prosthodontics and Periodontology, Bauru School of Dentistry - University of São Paulo, Bauru, SP, Brazil
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Diaz P, Gonzalo E, Villagra LJG, Miegimolle B, Suarez MJ. What is the prevalence of peri-implantitis? A systematic review and meta-analysis. BMC Oral Health 2022; 22:449. [PMID: 36261829 PMCID: PMC9583568 DOI: 10.1186/s12903-022-02493-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Accepted: 10/04/2022] [Indexed: 11/10/2022] Open
Abstract
Background Peri-implantitis is a usual finding but estimates of its prevalence fluctuate very much. This may be due to the wide variety of disease definitions. This systematic review aims to estimate the overall prevalence of peri-implantitis and the effect of different study designs, function times and use of probing depth on prevalence rate. Methods Following electronic and manual searches of the literature published from January 2005 to December 2021, data were extracted from the studies fitting the study criteria. Fifty-seven articles were included in this study. Results Prevalence of peri-implantitis was 19.53% (95% CI 12.87–26.19) at the patient-level, and 12.53% (95% CI 11.67–13.39) at the implant-level and it remains highly variable even following restriction to the clinical case definition. The use of probing depth like diagnostic criteria affected the prevalence data. Conclusion The results indicate that it remains essential the identification of the diagnostic markers for more accurate disease classification.
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Affiliation(s)
- Pedro Diaz
- Department of Conservative Dentistry and Bucofacial Prosthesis, Faculty of Odontology, University Complutense of Madrid (UCM), Pza Ramón y Cajal S/N, 28040, Madrid, Spain
| | - Esther Gonzalo
- Department of Conservative Dentistry and Bucofacial Prosthesis, Faculty of Odontology, University Complutense of Madrid (UCM), Pza Ramón y Cajal S/N, 28040, Madrid, Spain.
| | - Luis J Gil Villagra
- Department of Conservative Dentistry and Bucofacial Prosthesis, Faculty of Odontology, University Complutense of Madrid (UCM), Pza Ramón y Cajal S/N, 28040, Madrid, Spain
| | - Barbara Miegimolle
- Department of Conservative Dentistry and Bucofacial Prosthesis, Faculty of Odontology, University Complutense of Madrid (UCM), Pza Ramón y Cajal S/N, 28040, Madrid, Spain
| | - Maria J Suarez
- Department of Conservative Dentistry and Bucofacial Prosthesis, Faculty of Odontology, University Complutense of Madrid (UCM), Pza Ramón y Cajal S/N, 28040, Madrid, Spain
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Velasco-Ortega E, Cracel-Lopes JL, Matos-Garrido N, Jiménez-Guerra A, Ortiz-Garcia I, Moreno-Muñoz J, Núñez-Márquez E, Rondón-Romero JL, López-López J, Monsalve-Guil L. Immediate Functional Loading with Full-Arch Fixed Implant-Retained Rehabilitation in Periodontal Patients: Clinical Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:13162. [PMID: 36293738 PMCID: PMC9602498 DOI: 10.3390/ijerph192013162] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 10/09/2022] [Accepted: 10/11/2022] [Indexed: 06/16/2023]
Abstract
(1) Background. The immediate functional loading of implants is a clinical procedure used for treating periodontal edentulous patients. This clinical study aimed to evaluate the clinical outcomes of the immediate functional loading of implants with fully fixed rehabilitations in compromised periodontal patients. (2) Methods. Three hundred and five implants IPX screw implants were placed in 27 periodontal patients using an immediate functional loading protocol with fixed rehabilitations. All patients had a previous history of periodontitis, four patients (14.8%) were smokers and seven patients (25.9%) suffered from chronic medical conditions. (3) Results. Implant and prosthetic clinical findings were evaluated during a mean period of 41.3 ± 19.6 months. No implants were lost during the clinical follow-up. The cumulative survival rate for all implants was 100%. Regarding the prostheses designed, a total of 54 fixed prostheses were placed in the 27 patients immediately after the surgery. Forty-four hybrid fixed prostheses (81.5%) and 10 fixed rehabilitations (18.5%) were placed in the patients. The mean marginal bone loss was 1.51 ± 1.16 mm, ranging from 0 to 3.5 mm during the follow-up evaluation. Thirty-one implants (10.2%) in 10 patients (37%) were associated with peri-implantitis. Five patients (18.5%) showed some kind of technical complications (loss/fracture of the prosthetic screw, acrylic resin fracture, ceramic chipping). (4) Conclusions. The clinical outcomes of this study demonstrate that fixed rehabilitation by immediate functional loading of implants is considered a predictable procedure.
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Affiliation(s)
- Eugenio Velasco-Ortega
- Department of Comprehensive Dentistry for Adults and Gerodontology, Faculty of Dentistry, University of Seville, 41018 Seville, Spain
| | - Joao Luis Cracel-Lopes
- Department of Comprehensive Dentistry for Adults and Gerodontology, Faculty of Dentistry, University of Seville, 41018 Seville, Spain
| | - Nuno Matos-Garrido
- Department of Comprehensive Dentistry for Adults and Gerodontology, Faculty of Dentistry, University of Seville, 41018 Seville, Spain
| | - Alvaro Jiménez-Guerra
- Department of Comprehensive Dentistry for Adults and Gerodontology, Faculty of Dentistry, University of Seville, 41018 Seville, Spain
| | - Ivan Ortiz-Garcia
- Department of Comprehensive Dentistry for Adults and Gerodontology, Faculty of Dentistry, University of Seville, 41018 Seville, Spain
| | - Jesús Moreno-Muñoz
- Department of Comprehensive Dentistry for Adults and Gerodontology, Faculty of Dentistry, University of Seville, 41018 Seville, Spain
| | - Enrique Núñez-Márquez
- Department of Comprehensive Dentistry for Adults and Gerodontology, Faculty of Dentistry, University of Seville, 41018 Seville, Spain
| | - José Luis Rondón-Romero
- Department of Comprehensive Dentistry for Adults and Gerodontology, Faculty of Dentistry, University of Seville, 41018 Seville, Spain
| | - José López-López
- Department of Odontoestomatology (Dentistry), Service of the Medical-Surgical Area of Dentistry Hospital, University of Barcelona, 08907 L’Hospitalet de Llobregat, Spain
| | - Loreto Monsalve-Guil
- Department of Comprehensive Dentistry for Adults and Gerodontology, Faculty of Dentistry, University of Seville, 41018 Seville, Spain
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Thongpoung S, Masaki C, Nodai T, Munemasa T, Mukaibo T, Kondo Y, Hosokawa R. A new mandibular deformation index predicts amount of bone deformation in edentulous patients treated with an implant-supported fixed prosthesis. J Prosthodont Res 2021; 66:582-588. [PMID: 34924491 DOI: 10.2186/jpr.jpr_d_21_00145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
PURPOSE The present study was performed to examine the mandibular deformation during mouth opening in edentulous patients, treated with an implant-supported fixed prosthesis using strain gauges, and identify factors affecting deformation. METHODS Twenty patients with a fully edentulous mandible who received either 4 or ≥6 implants were included. The distal-most implants were placed mesial to the mental foramen (premolar region) in patients with 4 implants and distal to the mental foramen (molar region) in patients with ≥6 implants. Mandibular deformation during mouth opening was measured using strain gauges in two directions: anteroposterior direction and lateral direction between the distal-most implants on the left and right sides (arch width). The mandibular anatomy was evaluated using computed tomography. RESULTS Arch width reduction between the left and right implants during mouth opening ranged from 47.38 to 512.80 µm; the range of deformation was 0.12 to 15.14 µm in the anteroposterior direction. Furthermore, a significant positive correlation was noted between arch width reduction in the premolar region and the ratio between the symphyseal bone height and width (P = 0.0003, r = 0.72). CONCLUSION The reduction in arch width was higher in the molar region than in the premolar region during mouth opening. Moreover, the reduction could be high in the mandibular symphyseal bone because of its greater height and lesser width. The ratio between the symphyseal bone height and width is defined as the mandibular deformation index (MDI) and is used to predict the rate of mandibular bone deformation.
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Affiliation(s)
- Sirapat Thongpoung
- Division of Oral Reconstruction and Rehabilitation, Kyushu Dental University Graduate School, Japan.,Department of Prosthodontics, College of Dental Medicine, Rangsit University, Pathum Thani, Thailand
| | - Chihiro Masaki
- Division of Oral Reconstruction and Rehabilitation, Kyushu Dental University Graduate School, Japan
| | - Tomotaka Nodai
- Division of Oral Reconstruction and Rehabilitation, Kyushu Dental University Graduate School, Japan
| | - Takashi Munemasa
- Division of Oral Reconstruction and Rehabilitation, Kyushu Dental University Graduate School, Japan
| | - Taro Mukaibo
- Division of Oral Reconstruction and Rehabilitation, Kyushu Dental University Graduate School, Japan
| | - Yusuke Kondo
- Division of Oral Reconstruction and Rehabilitation, Kyushu Dental University Graduate School, Japan
| | - Ryuji Hosokawa
- Division of Oral Reconstruction and Rehabilitation, Kyushu Dental University Graduate School, Japan
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Sutariya PV, Shah HM, Patel SD, Upadhyay HH, Pathan MR, Shah RP. Mandibular implant-supported overdenture: A systematic review and meta-analysis for optimum selection of attachment system. J Indian Prosthodont Soc 2021; 21:319-327. [PMID: 34810359 PMCID: PMC8617439 DOI: 10.4103/jips.jips_158_21] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 07/11/2021] [Accepted: 09/22/2021] [Indexed: 01/25/2023] Open
Abstract
Aim This systematic review aimed to compare different attachment systems used in mandibular implant supported overdentures by assessing outcomes such as prosthodontic maintenance and complication, peri implant tissue changes, retention, and patient satisfaction for optimum selection of attachment system. Settings and Design This systematic review conducted following Preferred Reporting Items for the Systematic Review and Meta Analysis (PRISMA) guidelines. Materials and Methods A systematic electronic literature search was conducted through PubMed, The Cochrane Central Register of Controlled Trials (Central), and Science direct. A hand search was also performed for individual journals and reference lists of selected studies. Randomized controlled clinical trials and crossover clinical trials from 2010 to 2020 with follow up of more than 1 year were included. The Cochrane Collaboration's tool was used for assessing the risk of bias of included studies. Statistical Analysis Used The statistical meta analysis was performed using Review Manager (RevMan) [computer program]. Version 5.4. Copenhagen: The Nordic Cochrane Centre, The Cochrane Collaboation, 2020. Results Six studies that met the inclusion criteria possess the low risk of bias with follow up of more than 1 year were included in this systematic review. Out of four outcomes, meta analysis was performed for prosthodontic maintenance and peri implant tissue changes. Due to the limited availability of data, retention and patient satisfaction were reviewed systematically without meta analysis. The result of meta analysis for ball versus magnet attachment showed statistically significant differences in prosthodontic complications and maintenance, and ball attachment reported fewer complications than the locator attachment (risk ratio [RR] =0.55, confidence interval [CI] =95%, P = 0.03). Peri implant tissue changes were analyzed in the included studies as probing depth and marginal bone loss. The result of meta analysis for probing depth showed no statistically significant difference between bar versus telescopic type of attachment (RR = 0.20, CI = 95%, P = 0.74). The meta analysis results for marginal bone loss showed no statistically significant difference between bar versus telescopic type of attachment (mean difference = 0.35, CI = 95%, P = 0.10). Conclusion It can be concluded from the current review that bar attachment provided the most superior retention. The telescopic attachment system not only showed the most favorable patient's satisfaction but also reported the least peri implant mucosal changes. The ball attachment system is a favorable choice for limited inter arch space and parallel implant placement.
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Affiliation(s)
- Priyanka Vaibhav Sutariya
- Department of Prosthodontics, College of Dental Sciences and Research Centre, Ahmedabad, Gujarat, India
| | - Hitendra Mohanlal Shah
- Department of Prosthodontics, College of Dental Sciences and Research Centre, Ahmedabad, Gujarat, India
| | - Surbhi Dipakbhai Patel
- Department of Prosthodontics, College of Dental Sciences and Research Centre, Ahmedabad, Gujarat, India
| | - Hemil Hitesh Upadhyay
- Department of Prosthodontics, College of Dental Sciences and Research Centre, Ahmedabad, Gujarat, India
| | | | - Rutu Paresh Shah
- Department of Prosthodontics, College of Dental Sciences and Research Centre, Ahmedabad, Gujarat, India
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Fukutoku A, Tanabe N, Kihara H, Oyamada Y, Fukazawa S, Kondo H. Surface attrition of zirconia and hybrid composite resin superstructure during implant therapy. J Oral Sci 2021; 63:267-269. [PMID: 34135265 DOI: 10.2334/josnusd.21-0167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
PURPOSE The purpose of this study was to examine morphological changes in the superstructure of implants in relation to the degree of attrition of the implant superstructure and its antagonists. METHODS Thirty-three patients participated. The implant superstructures of the first molar and its antagonists were scanned with an intraoral scanner every 3 months. The amount of attrition was calculated in relation to the various materials used for the superstructure, and differences were analyzed statistically (P < 0.05). RESULTS Attrition of the implant superstructure was 110 ± 30 µm for monolithic zirconia and 105 ± 27 µm for resin-veneered metal after 12 months. No statistically significant difference was found between the two groups. In contrast, attrition of the antagonists was 75 ± 25 µm for zirconia and 105 ± 20 µm for resin-veneered metal after 12 months. A statistically significant difference in the attrition levels between the two groups was observed after 9 and 12 months. CONCLUSION During the 12-month observation period, there was no difference in superstructure attrition between zirconia and resin-veneered metal. Attrition of the antagonists was higher for hybrid composite resin-veneered metal than for zirconia, suggesting that surface roughness affected the degree of attrition.
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Affiliation(s)
- Akihiro Fukutoku
- Department of Prosthodontics and Oral Implantology, School of Dentistry, Iwate Medical University
| | - Norimasa Tanabe
- Department of Prosthodontics and Oral Implantology, School of Dentistry, Iwate Medical University
| | - Hidemichi Kihara
- Department of Prosthodontics and Oral Implantology, School of Dentistry, Iwate Medical University
| | - Yutaro Oyamada
- Department of Prosthodontics and Oral Implantology, School of Dentistry, Iwate Medical University
| | - Shota Fukazawa
- Department of Prosthodontics and Oral Implantology, School of Dentistry, Iwate Medical University
| | - Hisatomo Kondo
- Department of Prosthodontics and Oral Implantology, School of Dentistry, Iwate Medical University
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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.
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