顺时针和逆时针常规和骨密度钻孔对骨的尺寸、密度和生物力学性能的影响。

IF 1.7 4区 医学 Q3 DENTISTRY, ORAL SURGERY & MEDICINE
Niloufar Daneshparvar, Tien-Min Chu, Steven Blanchard, Yusuke Hamada
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引用次数: 0

摘要

目的:比较常规种植体钻孔与顺时针、逆时针运动的骨密度钻孔对骨尺寸变化及初代种植体稳定性的影响。材料与方法:以猪胫骨为材料,制作40个骨模型(20 × 15 × 4 mm),代表植入软骨的种植体。在骨模型中采用以下技术之一制备种植体截骨术:(1)顺时针方向的常规种植体钻孔(a组),(2)逆时针方向的常规种植体钻孔(B组),(3)顺时针方向的骨密度钻孔(C组),(4)逆时针方向的骨密度钻孔(D组)。截骨术制作后放置骨水平锥形钛合金种植体(4.1 × 10 mm)。植入后测量种植体稳定商(ISQ)。每个骨模型在截骨创建前后用光学扫描仪扫描,转换为标准镶嵌语言(STL)文件。将术前和术后STL锉进行叠加,测量距离嵴骨1,3,7 mm处的尺寸变化。进行组织形态学分析,计算骨与种植体的接触率(BIC%)。结果:两组间ISQ值差异无统计学意义(P = 0.239)。组织形态计量学分析显示,D组种植体的BIC%显著高于A组(P = 0.020)和B组(P = 0.009)。骨扩张量随离嵴距离的增加而减少(P < 0.001)。B组(P = 0.039)和D组(P = 0.001)与a组相比,各水平均有显著扩张,组间尺寸变化无统计学差异。结论:与常规钻孔方法相比,常规钻孔和骨密度钻孔均有利于骨尺寸的扩大。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The Effects of Clockwise and Counterclockwise Conventional and Osseodensification Drilling on the Dimensions, Density, and Biomechanical Properties of Bone.

Purpose: To compare the effects of regular implant drills to osseodensifying drills used in clockwise and counterclockwise motions on bone dimension change and primary implant stability. Materials and Methods: A total of 40 bone models were made (20 × 15 × 4 mm) from porcine tibia to represent implants placed in soft bone. Implant osteotomies were prepared in the bone models using one of the following techniques: (1) regular implant drills in a clockwise direction (group A), (2) regular implant drills in a counterclockwise direction (group B), (3) osseodensifying drills in a clockwise direction (group C), and (4) osseodensifying drills in a counterclockwise direction (group D). Bone-level tapered titanium alloy implants (4.1 × 10 mm) were placed following osteotomy creation. The implant stability quotient (ISQ) was measured after implant placement. Each bone model was scanned with an optical scanner to convert to Standard Tessellation Language (STL) files before and after the osteotomy creation. Presurgical and postsurgical STL files were superimposed, and the dimensional changes were measured at 1, 3, and 7 mm from the crestal bone. Histomorphometric analysis was done, and bone-to-implant contact percentage (BIC%) was calculated. Results: There were no significant differences in ISQ values (P = .239) between any of the groups. Histomorphometric analysis showed implants in group D had significantly higher BIC% than groups A (P = .020) and B (P = .009). The amount of bone expansion decreased with distance from the crest (P < .001). Groups B (P = .039) and D (P = .001) showed significant expansions at all levels compared with group A. No other statistically significant differences in dimensional change were found between groups. Conclusion: Both regular and osseodensification burs used in a counterclockwise motion contribute to expansion of bone dimension compared to conventional drilling methods.

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来源期刊
CiteScore
3.30
自引率
5.00%
发文量
115
审稿时长
6 months
期刊介绍: Edited by Steven E. Eckert, DDS, MS ISSN (Print): 0882-2786 ISSN (Online): 1942-4434 This highly regarded, often-cited journal integrates clinical and scientific data to improve methods and results of oral and maxillofacial implant therapy. It presents pioneering research, technology, clinical applications, reviews of the literature, seminal studies, emerging technology, position papers, and consensus studies, as well as the many clinical and therapeutic innovations that ensue as a result of these efforts. The editorial board is composed of recognized opinion leaders in their respective areas of expertise and reflects the international reach of the journal. Under their leadership, JOMI maintains its strong scientific integrity while expanding its influence within the field of implant dentistry. JOMI’s popular regular feature "Thematic Abstract Review" presents a review of abstracts of recently published articles on a specific topical area of interest each issue.
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