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使用拔出试验和植入扭矩分析植入不同基质中的牙科种植体的初期稳定性。

Analysis of primary stability of dental implants inserted in different substrates using the pullout test and insertion torque.

作者信息

Oliscovicz Nathalia Ferraz, Shimano Antônio Carlos, Marcantonio Junior Elcio, Lepri César Penazzo, Dos Reis Andréa Candido

机构信息

Department of Dental Materiais and Prosthodontics, University of São Paulo, Av. do Café s/n, 14040-904 Ribeirão Preto, SP, Brazil.

出版信息

Int J Dent. 2013;2013:194987. doi: 10.1155/2013/194987. Epub 2013 Jan 22.

DOI:10.1155/2013/194987
PMID:23431301
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3566606/
Abstract

The aim of the study was to evaluate mechanical behavior of implants inserted in three substrates, by measuring the pullout strength and the relative stiffness. 32 implants (Master Porous-Conexao, cylindrical, external hexagon, and surface treatment) were divided into 4 groups (n = 8): pig rib bone, polyurethane Synbone, polyurethane Nacional 40 PCF, and pinus wood. Implants were installed with the exact distance of 5 mm of another implant. The insertion torque (N·cm) was quantified using the digital Kratos torque meter and the pullout test (N) was performed by an axial traction force toward the long axis of the implant (2 min/mm) through mount implant devices attached to a piece adapted to a load cell of 200 Kg of a universal testing machine (Emic DL10000). Data of insertion torque and maximum pullout force were submitted to one-way ANOVA and Bonferroni tests (α = 0.05). Polyurethane Nacional 40 PCF and pinus wood showed the highest values of insertion torque and pullout force, with significant statistical difference (P < 0.05) with other groups. The analysis showed stiffness materials with the highest values for primary stability.

摘要

本研究的目的是通过测量拔出强度和相对刚度来评估植入三种基质中的种植体的力学行为。32枚种植体（Master Porous-Conexao，圆柱形，外六角形，表面处理）被分为4组（n = 8）：猪肋骨、聚氨酯Synbone、聚氨酯Nacional 40 PCF和松木。种植体的安装间距为与另一枚种植体精确间隔5毫米。使用数字式Kratos扭矩计对植入扭矩（N·cm）进行量化，并通过安装在与一台200千克通用试验机（Emic DL10000）的测力传感器适配的部件上的种植体装置，朝着种植体长轴施加轴向牵引力（2分钟/毫米）来进行拔出试验（N）。将植入扭矩和最大拔出力的数据提交给单因素方差分析和Bonferroni检验（α = 0.05）。聚氨酯Nacional 40 PCF和松木的植入扭矩和拔出力值最高，与其他组相比具有显著统计学差异（P < 0.05）。分析表明，这些材料具有最高的初期稳定性刚度值。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5d6/3566606/3069b4de8bca/IJD2013-194987.003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5d6/3566606/6606ce26e1aa/IJD2013-194987.001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5d6/3566606/0308a312ded7/IJD2013-194987.002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5d6/3566606/3069b4de8bca/IJD2013-194987.003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5d6/3566606/6606ce26e1aa/IJD2013-194987.001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5d6/3566606/0308a312ded7/IJD2013-194987.002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5d6/3566606/3069b4de8bca/IJD2013-194987.003.jpg

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