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

Autor(es)

Jinno, Yohei ^[1] ; Jimbo, Ryo ^[1] ; Tovar, Nick ^[2] ; Teixeira, Hellen S. ^[3] ; Witek, Lukasz ^[4] ; Coelho, Paulo G. ^[4]

Afiliação do(s) autor(es)

^[1] Malmo Univ, Dept Oral & Maxillofacial Surg & Oral Med, Carlgustafs Vag 34, S-20506 Malmo - Sweden

^[2] NYU, Coll Dent, Mat Anal & Testing Lab, Dept Biomat & Biomimet, New York, NY - USA

^[3] Univ Penn, Sch Dent Med, Dept Orthodont, Philadelphia, PA 19104 - USA

^[4] NYU, Coll Dent, Dept Biomat & Biomimet, New York, NY - USA

• Tipo de documento: Artigo Científico
• Fonte: IMPLANT DENTISTRY; v. 26, n. 6, p. 815-819, DEC 2017.
• Citações Web of Science: 1

Resumo

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. (AU)

• Processo FAPESP: 10/06152-9 - Confiabilidade e modos de fratura de próteses fixas em compósitos indiretos com e sem infra-estrutura CAD/CAM sobre implantes
• Beneficiário: Estevam Augusto Bonfante
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado