Influence of bio-aging on corrosion behavior of different implant materials

被引：14
作者：
Zhou, Wen [1 ,2 ,3 ]
Peng, Xian [1 ,3 ]
Zhou, Xuedong [1 ,2 ,3 ]
Li, Mingyun [1 ,3 ]
Ren, Biao [1 ,3 ]
Cheng, Lei [1 ,2 ,3 ]
机构：
[1] Sichuan Univ, State Key Lab Oral Dis, Chengdu, Sichuan, Peoples R China
[2] Sichuan Univ, West China Hosp Stomatol, Dept Operat Dent & Endodont, Chengdu, Sichuan, Peoples R China
[3] Sichuan Univ, Natl Clin Res Ctr Oral Dis, Chengdu, Sichuan, Peoples R China
来源：
CLINICAL IMPLANT DENTISTRY AND RELATED RESEARCH | 2019年 / 21卷 / 06期
基金：
中国国家自然科学基金;
关键词：
bacteria adhesion; bio-aging; corrosion; human gingival fibroblasts; implant materials; VITRO BIOFILM FORMATION; SURFACE CHARACTERISTICS; IN-VITRO; FIBROBLAST RESPONSE; TITANIUM IMPLANTS; DENTAL IMPLANTS; PURE TITANIUM; ATTACHMENT; ROUGHNESS; PROLIFERATION;
D O I：
10.1111/cid.12865
中图分类号：
R78 [口腔科学];
学科分类号：
1003 ;
摘要：
Background Dental implants and abutments are exposed to challenging oral environment. Corrosion of these materials can affect the overall performance of titanium implants. Purpose To investigate the effects of biofilm-induced bio-aging on corrosion behavior of different implant materials surface. Materials and Methods Commercial polished titanium (Polish), sand-blasted, large grit, acid-etched surface treated titanium (SLA), microarc oxidation (MAO), and hydroxyapatite (HA) coated titanium were bio-aged with saliva biofilm for 30 days. Titanium surfaces topography, chemical composition, roughness, and water contact angle changes were evaluated. In addition, human gingival fibroblasts (HGFs) adhesion, Streptococcus sanguinis (S. sanguinis) biofilm formation were determined. Results Surface topography, roughness, and chemical composition have no significant changes for all groups after bio-aging (P > .05). Water contact angle of bio-aged SLA was greatly increased (P < .05). While other groups showed no sign of change (P > .05). Adhesion and proliferation of HGFs on the bio-aged SLA titanium surfaces were decreased (P < .05), but increased on bio-aged Polish and HA titanium (P < .05). S. sanguinis biofilm viability was promoted with bio-aging in HA group (P < .05). Conclusions Biological characteristics of Polish, SLA, and HA titanium surfaces were influenced by bio-aging. While MAO group was relatively resistant to saliva biofilm bio-aging.
引用
收藏
页码：1225 / 1234
页数：10
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