Effects of insertion torque on the structure of dental implants with different connections: Experimental pilot study in vitro.

<h4>Objective</h4>During the insertion of dental implants in the bone tissue, different torque values can be applied. However, the high applied torque can cause damage to the implant connection. Our study sought to evaluate, by measuring the angle of rotation of the insertion drive and,...

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Autores principales:	Sergio Alexandre Gehrke, Gismari Miranda Amaral Pereira, Arthur Felipe Gehrke, Nilton De Bortoli Junior, Berenice Anina Dedavid
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ff3af3ecf4f0435f8e73ea3d1b76e897
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id	oai:doaj.org-article:ff3af3ecf4f0435f8e73ea3d1b76e897
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spelling	oai:doaj.org-article:ff3af3ecf4f0435f8e73ea3d1b76e8972021-12-02T20:11:18ZEffects of insertion torque on the structure of dental implants with different connections: Experimental pilot study in vitro.1932-620310.1371/journal.pone.0251904https://doaj.org/article/ff3af3ecf4f0435f8e73ea3d1b76e8972021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0251904https://doaj.org/toc/1932-6203<h4>Objective</h4>During the insertion of dental implants in the bone tissue, different torque values can be applied. However, the high applied torque can cause damage to the implant connection. Our study sought to evaluate, by measuring the angle of rotation of the insertion drive and, later microscopic observation, possible changes in the structure of implants of different diameters with 3 different types of connections after the application of 4 different torque intensities.<h4>Materials and methods</h4>Three hundred tapered dental implants and three hundred insertion drivers were used in the present study. Implants of 3.5 and 4 mm in diameter with 3 connection models were tested: external hexagon (EH), internal hexagon (IH) and Morse taper (MT). Then, sis groups were performed: EH3 group, EH4 group, IH3 group, IH4 group, MT3 group and MT4 group. The samples were submitted to the torque/torsion force at 4 intensities (n = 10 samples per group and intensity): 60, 80, 100 and 120 Ncm. The turning angle of the insertion driver was measured in each test. In addition, in 10 samples from each group, the maximum torque value supported by each implant model was measured. After the tests, all samples were inspected microscopically to describe the observed changes.<h4>Results</h4>The maximum torque supported by the different implant models showed statistically significant difference (p < 0.0001). The values of the measured angles showed statistically significant differences between the torque values applied within each group (p < 0.001) and between groups with the same torque value (p < 0.001).<h4>Conclusions</h4>Within the limitations of the present study in vitro, the results showed that high torque values cause mechanical damage to the implants.Sergio Alexandre GehrkeGismari Miranda Amaral PereiraArthur Felipe GehrkeNilton De Bortoli JuniorBerenice Anina DedavidPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 5, p e0251904 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Sergio Alexandre Gehrke Gismari Miranda Amaral Pereira Arthur Felipe Gehrke Nilton De Bortoli Junior Berenice Anina Dedavid Effects of insertion torque on the structure of dental implants with different connections: Experimental pilot study in vitro.
description	<h4>Objective</h4>During the insertion of dental implants in the bone tissue, different torque values can be applied. However, the high applied torque can cause damage to the implant connection. Our study sought to evaluate, by measuring the angle of rotation of the insertion drive and, later microscopic observation, possible changes in the structure of implants of different diameters with 3 different types of connections after the application of 4 different torque intensities.<h4>Materials and methods</h4>Three hundred tapered dental implants and three hundred insertion drivers were used in the present study. Implants of 3.5 and 4 mm in diameter with 3 connection models were tested: external hexagon (EH), internal hexagon (IH) and Morse taper (MT). Then, sis groups were performed: EH3 group, EH4 group, IH3 group, IH4 group, MT3 group and MT4 group. The samples were submitted to the torque/torsion force at 4 intensities (n = 10 samples per group and intensity): 60, 80, 100 and 120 Ncm. The turning angle of the insertion driver was measured in each test. In addition, in 10 samples from each group, the maximum torque value supported by each implant model was measured. After the tests, all samples were inspected microscopically to describe the observed changes.<h4>Results</h4>The maximum torque supported by the different implant models showed statistically significant difference (p < 0.0001). The values of the measured angles showed statistically significant differences between the torque values applied within each group (p < 0.001) and between groups with the same torque value (p < 0.001).<h4>Conclusions</h4>Within the limitations of the present study in vitro, the results showed that high torque values cause mechanical damage to the implants.
format	article
author	Sergio Alexandre Gehrke Gismari Miranda Amaral Pereira Arthur Felipe Gehrke Nilton De Bortoli Junior Berenice Anina Dedavid
author_facet	Sergio Alexandre Gehrke Gismari Miranda Amaral Pereira Arthur Felipe Gehrke Nilton De Bortoli Junior Berenice Anina Dedavid
author_sort	Sergio Alexandre Gehrke
title	Effects of insertion torque on the structure of dental implants with different connections: Experimental pilot study in vitro.
title_short	Effects of insertion torque on the structure of dental implants with different connections: Experimental pilot study in vitro.
title_full	Effects of insertion torque on the structure of dental implants with different connections: Experimental pilot study in vitro.
title_fullStr	Effects of insertion torque on the structure of dental implants with different connections: Experimental pilot study in vitro.
title_full_unstemmed	Effects of insertion torque on the structure of dental implants with different connections: Experimental pilot study in vitro.
title_sort	effects of insertion torque on the structure of dental implants with different connections: experimental pilot study in vitro.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/ff3af3ecf4f0435f8e73ea3d1b76e897
work_keys_str_mv	AT sergioalexandregehrke effectsofinsertiontorqueonthestructureofdentalimplantswithdifferentconnectionsexperimentalpilotstudyinvitro AT gismarimirandaamaralpereira effectsofinsertiontorqueonthestructureofdentalimplantswithdifferentconnectionsexperimentalpilotstudyinvitro AT arthurfelipegehrke effectsofinsertiontorqueonthestructureofdentalimplantswithdifferentconnectionsexperimentalpilotstudyinvitro AT niltondebortolijunior effectsofinsertiontorqueonthestructureofdentalimplantswithdifferentconnectionsexperimentalpilotstudyinvitro AT bereniceaninadedavid effectsofinsertiontorqueonthestructureofdentalimplantswithdifferentconnectionsexperimentalpilotstudyinvitro
_version_	1718374922605035520

Effects of insertion torque on the structure of dental implants with different connections: Experimental pilot study in vitro.

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