Evaluation of soft tissue biocompatibility and establishment of effective sterilization on zirconia implant.

• Project/Area Number: 22791896
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Prosthetic dentistry
• Research Institution: Kagoshima University
• Principal Investigator: TAKEUCHI Hironobu 鹿児島大学, 医歯学総合研究科, 助教 (70452951)
• Project Period (FY): 2010 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2010: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
• Keywords: ジルコニア / インプラント / 軟組織 / 除染法

Research Abstract

There were no significant difference between polish, grinding and blasting groups in attachment of gingival epithelial cells on zirconia. A smooth surface is suitable for zirconia abutment from the perspective of bacterial contamination. Chlorhexidine, electrolyzed neutral water and ultrasonic scaler with plastic tip were effective for decontamination of Aggregatibacter actinomycetemcomitans on zirconia and titanium. However, there is possibility of corrosion by electrolyzed neutral water on titanium. On the other hand, it was indicated that zirconia has chemically stability.