Substitutes for human cadaveric hone in maxillofacial rigid fixation research

被引:82
作者
Bredbenner, TL
Haug, RH
机构
[1] Metrohlth Med Ctr, Dept Orthopaed, Cleveland, OH USA
[2] Univ Kentucky, Coll Dent, DDS, Dept Hosp Dent, Lexington, KY 40536 USA
[3] Univ Kentucky, Albert B Chandler Med Ctr, Lexington, KY 40536 USA
来源
ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY AND ENDODONTOLOGY | 2000年 / 90卷 / 05期
关键词
D O I
10.1067/moe.2000.111025
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
Objective. Various materials have been used as human bone substitutes in rigid fixation research. We hypothesize that these substitutes behave differently than human cadaveric bone in maxillofacial research. Study design. Screw insertion torque and pull-out strength of titanium maxillofacial self-tapping bone screws (1.0 mm and 2.4 mm outer diameter) were measured in cadaveric mandible and in the following materials: bovine rib, porcine rib, photoelastic epoxy, red oak, and 2 types of synthetic mandibles. Results were tested for statistically significant differences (unpaired t test, P < .05) in comparison with human bone. Results, For 1.0-mm screws, statistically significant differences were found for the synthetic mandibles groups and oak groups for insertion torque and porcine rib for pull-out strength. For 2.4-mm screws, statistically significant differences were found for the porcine rib and oak groups for insertion torque and the bovine rib and epoxy groups for pull-out strength. Conclusion. The results suggest that human bone can be simulated in fixation studies With bone substitute materials.
引用
收藏
页码:574 / 580
页数:7
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