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A 3-year prospective cohort study on mandibular anterior cantilever restorations associated with screw-retained implant-supported prosthesis: An in vivo study

AIM: The aim of this study is to evaluate the survival of single implant supported cantilever prosthesis (ISCP) replacing missing two adjacent natural teeth in the anterior mandible. SETTINGS AND DESIGN: In vivo - Prospective cohort study. MATERIALS AND METHODS: Thirty patients with missing both man...

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Autores principales: Nelluri, Vizaikumar Vasudha, Roseme, Kandathilparambil Maria, Gedela, Rajani Kumar
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Wolters Kluwer - Medknow 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8262442/
https://www.ncbi.nlm.nih.gov/pubmed/33938864
http://dx.doi.org/10.4103/jips.jips_446_20
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author Nelluri, Vizaikumar Vasudha
Roseme, Kandathilparambil Maria
Gedela, Rajani Kumar
author_facet Nelluri, Vizaikumar Vasudha
Roseme, Kandathilparambil Maria
Gedela, Rajani Kumar
author_sort Nelluri, Vizaikumar Vasudha
collection PubMed
description AIM: The aim of this study is to evaluate the survival of single implant supported cantilever prosthesis (ISCP) replacing missing two adjacent natural teeth in the anterior mandible. SETTINGS AND DESIGN: In vivo - Prospective cohort study. MATERIALS AND METHODS: Thirty patients with missing both mandibular central incisors were selected. A single implant was used to replace the missing teeth and restored with cantilever screw-retained prosthesis. Twenty-two patients were followed for 3 years for the implant and prosthetic success. STATISTICAL ANALYSIS USED: Weibull test for survival probability. RESULTS: Survival probability of the ISCP for the first 100 days was found to be 97.55%, for 200 days, it was 71.4%, for 250 days, it was 46%, and for 365 days, it was 3.9%, i.e., 20 prosthesis had screw loosening after prosthetic loading. However, it increased to 95.2% at the end of 3 years. CONCLUSION: Screw-retained ISCP developed early technical complications. After prosthetic loading, the survival probability of the screw-retained ISCP was very low (3.9%) at one year, which increased to 95.2% after retightening and retorquing of the abutment screw, porcelain repair and conformation of the tongue to the prosthesis. The most common prosthetic failure was screw loosening (81%), followed by porcelain fracture (14.3%), and implant survival of 95% at the end of three years.
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spelling pubmed-82624422022-04-01 A 3-year prospective cohort study on mandibular anterior cantilever restorations associated with screw-retained implant-supported prosthesis: An in vivo study Nelluri, Vizaikumar Vasudha Roseme, Kandathilparambil Maria Gedela, Rajani Kumar J Indian Prosthodont Soc Original Article AIM: The aim of this study is to evaluate the survival of single implant supported cantilever prosthesis (ISCP) replacing missing two adjacent natural teeth in the anterior mandible. SETTINGS AND DESIGN: In vivo - Prospective cohort study. MATERIALS AND METHODS: Thirty patients with missing both mandibular central incisors were selected. A single implant was used to replace the missing teeth and restored with cantilever screw-retained prosthesis. Twenty-two patients were followed for 3 years for the implant and prosthetic success. STATISTICAL ANALYSIS USED: Weibull test for survival probability. RESULTS: Survival probability of the ISCP for the first 100 days was found to be 97.55%, for 200 days, it was 71.4%, for 250 days, it was 46%, and for 365 days, it was 3.9%, i.e., 20 prosthesis had screw loosening after prosthetic loading. However, it increased to 95.2% at the end of 3 years. CONCLUSION: Screw-retained ISCP developed early technical complications. After prosthetic loading, the survival probability of the screw-retained ISCP was very low (3.9%) at one year, which increased to 95.2% after retightening and retorquing of the abutment screw, porcelain repair and conformation of the tongue to the prosthesis. The most common prosthetic failure was screw loosening (81%), followed by porcelain fracture (14.3%), and implant survival of 95% at the end of three years. Wolters Kluwer - Medknow 2021 2021-04-28 /pmc/articles/PMC8262442/ /pubmed/33938864 http://dx.doi.org/10.4103/jips.jips_446_20 Text en Copyright: © 2021 The Journal of Indian Prosthodontic Society https://creativecommons.org/licenses/by-nc-sa/4.0/This is an open access journal, and articles are distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as appropriate credit is given and the new creations are licensed under the identical terms.
spellingShingle Original Article
Nelluri, Vizaikumar Vasudha
Roseme, Kandathilparambil Maria
Gedela, Rajani Kumar
A 3-year prospective cohort study on mandibular anterior cantilever restorations associated with screw-retained implant-supported prosthesis: An in vivo study
title A 3-year prospective cohort study on mandibular anterior cantilever restorations associated with screw-retained implant-supported prosthesis: An in vivo study
title_full A 3-year prospective cohort study on mandibular anterior cantilever restorations associated with screw-retained implant-supported prosthesis: An in vivo study
title_fullStr A 3-year prospective cohort study on mandibular anterior cantilever restorations associated with screw-retained implant-supported prosthesis: An in vivo study
title_full_unstemmed A 3-year prospective cohort study on mandibular anterior cantilever restorations associated with screw-retained implant-supported prosthesis: An in vivo study
title_short A 3-year prospective cohort study on mandibular anterior cantilever restorations associated with screw-retained implant-supported prosthesis: An in vivo study
title_sort 3-year prospective cohort study on mandibular anterior cantilever restorations associated with screw-retained implant-supported prosthesis: an in vivo study
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8262442/
https://www.ncbi.nlm.nih.gov/pubmed/33938864
http://dx.doi.org/10.4103/jips.jips_446_20
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