Influence of a zirconia sandblasting treated surface on peri-implant bone healing: An experimental study in sheep

被引：64

作者：

Bacchelli, Beatrice ^{[1
]}

Giavaresi, Gianluca ^{[2
]}

Franchi, Marco ^{[1
]}

Martini, Desiree ^{[1
]}

De Pasquale, Viviana ^{[1
]}

Trire, Alessandra ^{[1
]}

Fini, Milena ^{[2
]}

Giardino, Roberto ^{[2
]}

Ruggeri, Alessandro ^{[1
]}

机构：

[1] Univ Bologna, Inst Human Anat, Dept Human Anat Sci, I-40100 Bologna, Italy

[2] Rizzoli Orthopaed Inst, Codivilla Putti Res Inst, Dept Expt Surg, Bologna, Italy

来源：

ACTA BIOMATERIALIA | 2009年 / 5卷 / 06期

关键词：

Titanium dental implants; Zirconia sandblasting; Histomorphometry; Osseointegration; Microhardness; PLASMA-SPRAYED IMPLANTS; LOADED DENTAL IMPLANTS; TITANIUM IMPLANTS; IN-VIVO; HISTOMORPHOMETRIC EVALUATION; BACTERIAL ADHESION; ALUMINUM-OXIDE; REMOVAL TORQUE; OSSEOINTEGRATION; PARTICLES;

D O I：

10.1016/j.actbio.2009.01.024

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

A sandblasting process with round zirconia (ZrO2) particles might be an alternative surface treatment to enhance the osseointegration of titanium dental implants. Our previous study on sheep compared smooth surface titanium implants (control) with implant surfaces sandblasted with two different granulations of ZrO2. As the sandblasted surfaces proved superior, the present study further compared the ZrO2 surface implant with other surface treatments currently employed: machined titanium (control), titanium oxide plasma sprayed (TPS) and alumina sandblasted (Al-SL) at different times after insertion (2, 4 and 12 weeks). Twelve sheep were divided into three groups of four animals each and underwent implant insertion in tibia cortical bone under general anaesthesia. The implants with surrounding tissues were subjected to histology, histomorphometry, scanning electron microscopy and microhardness tests. The experimentation indicated that at 2 weeks Zr-SL implants had the highest significant bone ingrowth (p < 0.05) compared to the other implant surfaces, and a microhardness of newly formed bone inside the threads significantly higher than that of Ti. The present work shows that the ZrO2 treatment produces better results in peri-implant newly formed bone than Ti and TPS processing, whereas its performance is similar to the Al-SL surface treatment. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：2246 / 2257

页数：12

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