Effect of low-speed drilling without irrigation on osseointegration: an experimental study in dogs.

Oral and maxillofacial surgery Pub Date : 2022-12-01 Epub Date: 2021-11-26 DOI:10.1007/s10006-021-01023-0

Shigeo Fujiwara, Daniele Botticelli, Naoki Kaneko, Joaquin Urbizo Velez, Margherita Tumedei, Franco Bengazi

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引用次数: 2

Abstract

Objective: To study the early phases of osseointegration at implants installed in sites prepared with either high rotational speed with irrigation or low rotational speed without irrigation.

Material and methods: After 3 months from tooth extraction, two implants were installed in one side of the mandible of twelve dogs. The osteotomies were prepared either at 60 rpm without irrigation or at 750 rpm with refrigeration. Biopsies were obtained after 4 and 8 weeks of healing, six animals each period for histological analyses.

Results: After 4 weeks of healing, new bone percentage in contact with the implant surface (BIC%) was 46.6 ± 7.3% and 43.1 ± 6.8% at the low- and high-speed sites, respectively (p = 0.345). After 8 weeks of healing, the fractions increased to 60.0 ± 11.1% and 60.2 ± 6.2%, respectively (p = 0.753).

Conclusions: Implants installed in sites prepared using either low-rotational drilling without irrigation or high speed with irrigation presented similar amounts of osseointegration.

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低速钻孔不灌洗对犬骨整合影响的实验研究。

目的:研究高转速灌洗和低转速不灌洗两种种植体的早期骨整合情况。材料与方法:拔牙3个月后，在12只狗的一侧下颌骨安装2个种植体。截骨术在60转/分钟无冲洗或750转/分钟冷藏时进行。愈合后4周和8周分别行活检，每期6只进行组织学分析。结果:愈合4周后，低速和高速位置的新生骨与种植体表面接触率(BIC%)分别为46.6±7.3%和43.1±6.8% (p = 0.345)。愈合8周后，两组评分分别为60.0±11.1%和60.2±6.2% (p = 0.753)。结论:种植体安装在低旋转钻孔不灌水或高速灌水制备的部位具有相似的骨整合量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Oral and maxillofacial surgery

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