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In vitro retention force measurement for three different attachment systems for implant-retained overdenture

AIM: The aim of this study is to compare the retention force of three different types of overdenture attachment systems used in implant-retained mandibular complete overdentures. MATERIALS AND METHODS: Twenty-one similar acrylic resin blocks were prepared and divided into three study groups: Group A...

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Autores principales: Reda, Kareem Mohammed, El-Torky, Ibrahim Ramadan, EL-Gendy, Mohamed Nabeel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications & Media Pvt Ltd 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5062134/
https://www.ncbi.nlm.nih.gov/pubmed/27746603
http://dx.doi.org/10.4103/0972-4052.191284
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author Reda, Kareem Mohammed
El-Torky, Ibrahim Ramadan
EL-Gendy, Mohamed Nabeel
author_facet Reda, Kareem Mohammed
El-Torky, Ibrahim Ramadan
EL-Gendy, Mohamed Nabeel
author_sort Reda, Kareem Mohammed
collection PubMed
description AIM: The aim of this study is to compare the retention force of three different types of overdenture attachment systems used in implant-retained mandibular complete overdentures. MATERIALS AND METHODS: Twenty-one similar acrylic resin blocks were prepared and divided into three study groups: Group A (snap attachment) - 10 specimens, Group B (locator attachment) - 1 specimen, and Group C (syncone attachment) - 10 specimens. A single rectangular heat cure acrylic resin block with two implant analogs 22 mm apart was used with all specimens. Each specimen was subjected to 5500 cycles of insertion and removal in the presence of artificial saliva, representing 5 years of usage. Retention was measured three times for each specimen using universal testing machine. Data were analyzed using one-way and two-way analysis of variance at 95% level of confidence. RESULTS: Locator attachment group (Group B) showed the greatest retention level throughout the study, followed by snap attachment (Group A), and syncone attachment (Group C) showed the lowest retention level. CONCLUSION: Regardless of the initial retention level of overdenture attachment, gradual loss of retention values is inevitable. However, the rate of retention loss in overdenture attachments is higher in types which comprised plastic parts within their components, rather than those totally made up of noble metals.
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spelling pubmed-50621342017-10-01 In vitro retention force measurement for three different attachment systems for implant-retained overdenture Reda, Kareem Mohammed El-Torky, Ibrahim Ramadan EL-Gendy, Mohamed Nabeel J Indian Prosthodont Soc Original Article AIM: The aim of this study is to compare the retention force of three different types of overdenture attachment systems used in implant-retained mandibular complete overdentures. MATERIALS AND METHODS: Twenty-one similar acrylic resin blocks were prepared and divided into three study groups: Group A (snap attachment) - 10 specimens, Group B (locator attachment) - 1 specimen, and Group C (syncone attachment) - 10 specimens. A single rectangular heat cure acrylic resin block with two implant analogs 22 mm apart was used with all specimens. Each specimen was subjected to 5500 cycles of insertion and removal in the presence of artificial saliva, representing 5 years of usage. Retention was measured three times for each specimen using universal testing machine. Data were analyzed using one-way and two-way analysis of variance at 95% level of confidence. RESULTS: Locator attachment group (Group B) showed the greatest retention level throughout the study, followed by snap attachment (Group A), and syncone attachment (Group C) showed the lowest retention level. CONCLUSION: Regardless of the initial retention level of overdenture attachment, gradual loss of retention values is inevitable. However, the rate of retention loss in overdenture attachments is higher in types which comprised plastic parts within their components, rather than those totally made up of noble metals. Medknow Publications & Media Pvt Ltd 2016 /pmc/articles/PMC5062134/ /pubmed/27746603 http://dx.doi.org/10.4103/0972-4052.191284 Text en Copyright: © 2016 The Journal of Indian Prosthodontic Society http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms.
spellingShingle Original Article
Reda, Kareem Mohammed
El-Torky, Ibrahim Ramadan
EL-Gendy, Mohamed Nabeel
In vitro retention force measurement for three different attachment systems for implant-retained overdenture
title In vitro retention force measurement for three different attachment systems for implant-retained overdenture
title_full In vitro retention force measurement for three different attachment systems for implant-retained overdenture
title_fullStr In vitro retention force measurement for three different attachment systems for implant-retained overdenture
title_full_unstemmed In vitro retention force measurement for three different attachment systems for implant-retained overdenture
title_short In vitro retention force measurement for three different attachment systems for implant-retained overdenture
title_sort in vitro retention force measurement for three different attachment systems for implant-retained overdenture
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5062134/
https://www.ncbi.nlm.nih.gov/pubmed/27746603
http://dx.doi.org/10.4103/0972-4052.191284
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