体内评估在高密度骨中具有相同宏观几何形状的双重酸蚀和喷砂/酸蚀种植体。

In Vivo Evaluation of Dual Acid-Etched and Grit-Blasted/Acid-Etched Implants With Identical Macrogeometry in High-Density Bone.

机构信息

Researcher, Department of Oral and Maxillofacial Surgery and Oral Medicine, Malmo University, Malmö, Sweden.

Associate Professor, Department of Oral and Maxillofacial Surgery and Oral Medicine, Malmo University, Malmö, Sweden.

出版信息

Implant Dent. 2017 Dec;26(6):815-819. doi: 10.1097/ID.0000000000000672.

DOI:10.1097/ID.0000000000000672

PMID:29064857

Abstract

PURPOSE

Based on the current evidence, the effect of implant macrogeometry has a significant influence on osseointegration. Thus, this study evaluated histomorphometrically and histologically the bone response to acid-etched in comparison to grit-blasted/acid-etched (GB) and machined control (C) surfaced implants possessing identical macrogeometry placed in high-density bone.

MATERIALS AND METHODS

Implant surface topography of the 3 different surfaced implants has previously been characterized. The macrogeometry of the implants were conical, and healing chambers were created in the cortical regions. The 3 groups were placed in the external mandibular body of adult male sheep (n = 5). After 6 weeks in vivo, all samples were retrieved for histologic observation and histomorphometry (eg, bone-to-implant contact [BIC] and bone area fraction occupancy [BAFO]).

RESULTS

No statistical difference was observed for BIC and for BAFO, although there was a tendency that the mean values for BAFO was higher for the textured surface groups.

CONCLUSIONS

It is suggested that the effect of surface topography is minimal in high-density bone and osseointegration seemed to be macrogeometry dependent.

摘要

目的

基于现有证据，种植体宏观几何形状的影响对骨整合有显著影响。因此，本研究通过组织形态计量学和组织学评估了酸蚀表面与喷砂酸蚀（GB）和机械加工对照（C）表面具有相同宏观几何形状的种植体在高密度骨中的骨反应，这些种植体具有相同的宏观几何形状。

材料和方法

先前已经对 3 种不同表面处理种植体的种植体表面形貌进行了特征描述。种植体的宏观几何形状为圆锥形，在皮质区域形成了愈合室。将这 3 组植入物分别放置在成年雄性绵羊的下颌体外部（n = 5）。体内 6 周后，所有样本均用于组织学观察和组织形态计量学（例如，骨-种植体接触[BIC]和骨面积占有率[BAFO]）评估。