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The effect of the thread depth on the mechanical properties of the dental implant
PURPOSE: This study aimed to evaluate the effect of implant thread depth on primary stability in low density bone. MATERIALS AND METHODS: The insertion torque was measured by inserting Ti implants with different thread depths into solid rigid polyurethane blocks (Sawbones) with three different bone...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Korean Academy of Prosthodontics
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4414941/ https://www.ncbi.nlm.nih.gov/pubmed/25932309 http://dx.doi.org/10.4047/jap.2015.7.2.115 |
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author | Lee, Sun-Young Kim, Sung-Jun An, Hyun-Wook Kim, Hyun-Seung Ha, Dong-Guk Ryo, Kyung-Ho Park, Kwang-Bum |
author_facet | Lee, Sun-Young Kim, Sung-Jun An, Hyun-Wook Kim, Hyun-Seung Ha, Dong-Guk Ryo, Kyung-Ho Park, Kwang-Bum |
author_sort | Lee, Sun-Young |
collection | PubMed |
description | PURPOSE: This study aimed to evaluate the effect of implant thread depth on primary stability in low density bone. MATERIALS AND METHODS: The insertion torque was measured by inserting Ti implants with different thread depths into solid rigid polyurethane blocks (Sawbones) with three different bone densities (0.16 g/cm(3), 0.24 g/cm(3), and 0.32 g/cm(3)). The insertion torque value was evaluated with a surgical engine. The static compressive strength was measured with a universal testing machine (UTM) and the Ti implants were aligned at 30° against the loading direction of the UTM. After the static compressive strength test, the Ti implants were analyzed with a Measurescope. RESULTS: The Ti implants with deeper thread depth showed statistically higher mean insertion torque values (P<.001). Groups A and group B had similar maximum static compressive strengths, as did groups C and D (P>.05). After the static compressive strength, the thread shape of the Ti implants with deeper thread depth did not show any breakage but did show deformation of the implant body and abutment. CONCLUSION: The implants with deeper thread depth had higher mean insertion torque values but not lower compressive strength. The deep threads had a mechanical stability. Implants with deeper thread depth may increase the primary stability in areas of poor quality bone without decreasing mechanical strength. |
format | Online Article Text |
id | pubmed-4414941 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | The Korean Academy of Prosthodontics |
record_format | MEDLINE/PubMed |
spelling | pubmed-44149412015-04-30 The effect of the thread depth on the mechanical properties of the dental implant Lee, Sun-Young Kim, Sung-Jun An, Hyun-Wook Kim, Hyun-Seung Ha, Dong-Guk Ryo, Kyung-Ho Park, Kwang-Bum J Adv Prosthodont Original Article PURPOSE: This study aimed to evaluate the effect of implant thread depth on primary stability in low density bone. MATERIALS AND METHODS: The insertion torque was measured by inserting Ti implants with different thread depths into solid rigid polyurethane blocks (Sawbones) with three different bone densities (0.16 g/cm(3), 0.24 g/cm(3), and 0.32 g/cm(3)). The insertion torque value was evaluated with a surgical engine. The static compressive strength was measured with a universal testing machine (UTM) and the Ti implants were aligned at 30° against the loading direction of the UTM. After the static compressive strength test, the Ti implants were analyzed with a Measurescope. RESULTS: The Ti implants with deeper thread depth showed statistically higher mean insertion torque values (P<.001). Groups A and group B had similar maximum static compressive strengths, as did groups C and D (P>.05). After the static compressive strength, the thread shape of the Ti implants with deeper thread depth did not show any breakage but did show deformation of the implant body and abutment. CONCLUSION: The implants with deeper thread depth had higher mean insertion torque values but not lower compressive strength. The deep threads had a mechanical stability. Implants with deeper thread depth may increase the primary stability in areas of poor quality bone without decreasing mechanical strength. The Korean Academy of Prosthodontics 2015-04 2015-04-23 /pmc/articles/PMC4414941/ /pubmed/25932309 http://dx.doi.org/10.4047/jap.2015.7.2.115 Text en © 2015 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 Lee, Sun-Young Kim, Sung-Jun An, Hyun-Wook Kim, Hyun-Seung Ha, Dong-Guk Ryo, Kyung-Ho Park, Kwang-Bum The effect of the thread depth on the mechanical properties of the dental implant |
title | The effect of the thread depth on the mechanical properties of the dental implant |
title_full | The effect of the thread depth on the mechanical properties of the dental implant |
title_fullStr | The effect of the thread depth on the mechanical properties of the dental implant |
title_full_unstemmed | The effect of the thread depth on the mechanical properties of the dental implant |
title_short | The effect of the thread depth on the mechanical properties of the dental implant |
title_sort | effect of the thread depth on the mechanical properties of the dental implant |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4414941/ https://www.ncbi.nlm.nih.gov/pubmed/25932309 http://dx.doi.org/10.4047/jap.2015.7.2.115 |
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