Application of plasma sprayed zirconia coating in dental implant: study in implant
10.3760/cma.j.issn.1002-0098.2018.04.010
- VernacularTitle: 等离子喷涂氧化锆涂层钛种植体骨结合能力的动物实验
- Author:
Zhengfei HUANG
1
;
Zhifeng WANG
2
;
Chuanhua LI
1
;
Dan HAO
3
;
Jing LAN
1
Author Information
1. Department of Prosthodontics, School of Stomatology, Shandong University & Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, China
2. Department of Pediatric Dentistry, School of Stomatology, Shandong University & Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, China
3. Department of Prosthodontics, School of Stomatology, Shandong University & Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, China (Present address: Department of Prosthodontics, Nantong Stomatological Hospital, Nantong Jiangsu 226000, China)
- Publication Type:Journal Article
- Keywords:
Dental implants;
Osseointegration;
Plasma gases;
Zirconia coating
- From:Chinese Journal of Stomatology
2018;53(4):264-270
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the osseointegration of a novel coating-plasma-sprayed zirconia in dental implant.
Methods:Zirconia coating on non-thread titanium implant was prepared using plasma spraying, the implant surface morphology, surface roughness and wettability were measured. In vivo, zirconia coated implants were inserted in rabbit tibia and animals were respectively sacrificed at 2, 4, 8 and 12 weeks after implantation. The bond strength between implant and bone was measured by push-out test. The osseointegration was observed by scanning electron microscopy (SEM), micro CT and histological analyses. Quantified parameters including removal torque, and bone-implant contact (BIC) percentage were calculated.
Results:The surface roughness (1.6 µm) and wettability (54.6°) of zirconia coated implant was more suitable than those of titanium implant (0.6 µm and 74.4°) for osseointegration. At 12 weeks, the push-out value of zirconia coated implant and titanium implant were (64.9±3.0) and (50.4±2.9) N, and BIC value of these two groups were (54.7±3.6)% and (41.5±3.6)%. All these differences had statistical significance.
Conclusions:The surface characters of zirconia coated implant were more suitable for osseointegration and present better osseointegration than smooth titanium implant in vivo, especially at early stage.
