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Effect of different lateral occlusion schemes on peri-implant strain: A laboratory study

PURPOSE: This study aims to investigate the effects of four different lateral occlusion schemes and different excursions on peri-implant strains of a maxillary canine implant. MATERIALS AND METHODS: Four metal crowns with different occlusion schemes were attached to an implant in the maxillary canin...

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Autores principales: Lo, Jennifer, Abduo, Jaafar, Palamara, Joseph
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Korean Academy of Prosthodontics 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5321588/
https://www.ncbi.nlm.nih.gov/pubmed/28243391
http://dx.doi.org/10.4047/jap.2017.9.1.45
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author Lo, Jennifer
Abduo, Jaafar
Palamara, Joseph
author_facet Lo, Jennifer
Abduo, Jaafar
Palamara, Joseph
author_sort Lo, Jennifer
collection PubMed
description PURPOSE: This study aims to investigate the effects of four different lateral occlusion schemes and different excursions on peri-implant strains of a maxillary canine implant. MATERIALS AND METHODS: Four metal crowns with different occlusion schemes were attached to an implant in the maxillary canine region of a resin model. The included schemes were canine-guided (CG) occlusion, group function (GF) occlusion, long centric (LC) occlusion, and implant-protected (IP) occlusion. Each crown was loaded in three sites that correspond to maximal intercuspation (MI), 1 mm excursion, and 2 mm excursion. A load of 140 N was applied on each site and was repeated 10 times. The peri-implant strain was recorded by a rosette strain gauge that was attached on the resin model buccal to the implant. For each loading condition, the maximum shear strain value was calculated. RESULTS: The different schemes and excursive positions had impact on the peri-implant strains. At MI and 1 mm positions, the GF had the least strains, followed by IP, CG, and LC. At 2 mm, the least strains were associated with GF, followed by CG, LC, and IP. However, regardless of the occlusion scheme, as the excursion increases, a linear increase of peri-implant strains was detected. CONCLUSION: The peri-implant strain is susceptible to occlusal factors. The eccentric location appears to be more influential on peri-implant strains than the occlusion scheme. Therefore, adopting an occlusion scheme that can reduce the occurrence of occlusal contacts laterally may be beneficial in reducing peri-implant strains.
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spelling pubmed-53215882017-02-27 Effect of different lateral occlusion schemes on peri-implant strain: A laboratory study Lo, Jennifer Abduo, Jaafar Palamara, Joseph J Adv Prosthodont Original Article PURPOSE: This study aims to investigate the effects of four different lateral occlusion schemes and different excursions on peri-implant strains of a maxillary canine implant. MATERIALS AND METHODS: Four metal crowns with different occlusion schemes were attached to an implant in the maxillary canine region of a resin model. The included schemes were canine-guided (CG) occlusion, group function (GF) occlusion, long centric (LC) occlusion, and implant-protected (IP) occlusion. Each crown was loaded in three sites that correspond to maximal intercuspation (MI), 1 mm excursion, and 2 mm excursion. A load of 140 N was applied on each site and was repeated 10 times. The peri-implant strain was recorded by a rosette strain gauge that was attached on the resin model buccal to the implant. For each loading condition, the maximum shear strain value was calculated. RESULTS: The different schemes and excursive positions had impact on the peri-implant strains. At MI and 1 mm positions, the GF had the least strains, followed by IP, CG, and LC. At 2 mm, the least strains were associated with GF, followed by CG, LC, and IP. However, regardless of the occlusion scheme, as the excursion increases, a linear increase of peri-implant strains was detected. CONCLUSION: The peri-implant strain is susceptible to occlusal factors. The eccentric location appears to be more influential on peri-implant strains than the occlusion scheme. Therefore, adopting an occlusion scheme that can reduce the occurrence of occlusal contacts laterally may be beneficial in reducing peri-implant strains. The Korean Academy of Prosthodontics 2017-02 2017-02-07 /pmc/articles/PMC5321588/ /pubmed/28243391 http://dx.doi.org/10.4047/jap.2017.9.1.45 Text en © 2017 The Korean Academy of Prosthodontics http://creativecommons.org/licenses/by-nc/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Lo, Jennifer
Abduo, Jaafar
Palamara, Joseph
Effect of different lateral occlusion schemes on peri-implant strain: A laboratory study
title Effect of different lateral occlusion schemes on peri-implant strain: A laboratory study
title_full Effect of different lateral occlusion schemes on peri-implant strain: A laboratory study
title_fullStr Effect of different lateral occlusion schemes on peri-implant strain: A laboratory study
title_full_unstemmed Effect of different lateral occlusion schemes on peri-implant strain: A laboratory study
title_short Effect of different lateral occlusion schemes on peri-implant strain: A laboratory study
title_sort effect of different lateral occlusion schemes on peri-implant strain: a laboratory study
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5321588/
https://www.ncbi.nlm.nih.gov/pubmed/28243391
http://dx.doi.org/10.4047/jap.2017.9.1.45
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