可吸收螺钉与金属螺钉内固定在下颌支矢状劈裂截骨术中的弯曲强度评价:体外研究。

Q2 Dentistry

Pesquisa odontologica brasileira = Brazilian oral research Pub Date : 2003-07-01 Epub Date: 2003-12-16 DOI:10.1590/s1517-74912003000300012

Petrus Pereira Gomes, Rubens Guimarães Filho, Renato Mazzonetto

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引用次数: 15

摘要

本研究的目的是在体外评估可吸收螺钉和金属螺钉内固定在羊下颌骨分支矢状劈裂截骨术中的弯曲强度。螺钉作为拉力螺钉插入，呈倒“L”形，并进行弯曲强度试验。第一组的峰值荷载和最终荷载平均荷载和位移分别为18.45 kgf、8.19 mm和14.38 kgf，第二组的峰值荷载和位移分别为16.67 kgf、6.73 mm和13.98 kgf。结果采用Student st检验和Pearson相关分析进行统计分析。两组间差异无统计学意义，提示两种方法均可用于下颌支矢状劈裂截骨术。

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Evaluation of the bending strength of rigid internal fixation with absorbable and metallic screws in mandibular ramus sagittal split osteotomy: in vitro study.

The aim of this study was to evaluate, in vitro, the bending strength of internal fixation with absorbable and metallic screws in mandibular ramus sagittal split osteotomy in sheep hemimandibles. The screws were inserted as lag screws, with an inverted "L" configuration, and the set was submitted to bending strength tests. The load and displacement of the peak and final load averages were, respectively, 18.45 kgf, 8.19 mm and 14.38 kgf for Group I, and 16.67 kgf, 6.73 mm and 13.98 kgf for Group II. The results were submitted to statistical analysis by Student s t test and by the Pearson correlation analysis. The groups showed no statistically significant differences, indicating the feasibility of both for osteosynthesis in mandibular ramus sagittal split osteotomies.

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来源期刊

Pesquisa odontologica brasileira = Brazilian oral research Dentistry-Dentistry (all)

CiteScore

3.80

自引率

0.00%

发文量

期刊介绍： Pesquisa Odontológica Brasileira is a new quarterly published journal (January-March, April-June, July-September, October-December), with an annual supplement (Anais da Reunião de Pesquisa Odontológica da SBPqO), by the Sociedade Brasileira de Pesquisa Odontológica [Brazilian Society of Odontological Research] and University of São Paulo. It replaces Revista de Odontologia da Universidade de São Paulo (ISSN 0103-0663).