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Peri-implant bone formation of non-thermal atmospheric pressure plasma-treated zirconia implants with different surface roughness in rabbit tibiae.
Shon, Won-Jun; Chung, Shin Hye; Kim, Hong-Kyun; Han, Geum-Jun; Cho, Byeong-Hoon; Park, Young-Seok.
Afiliación
  • Shon WJ; Department of Conservative Dentistry, Dental Research Institute and School of Dentistry, Seoul National University, Seoul, South Korea.
Clin Oral Implants Res ; 25(5): 573-9, 2014 May.
Article en En | MEDLINE | ID: mdl-23406227
OBJECTIVES: The aim of this study was to evaluate and compare the osseointegration of powder-injection molded (PIM) zirconia implants in rabbit tibiae with or without He plasma treatment. MATERIAL AND METHODS: Twenty-five rabbits received 4 types of external hex implants with identical geometry in the tibiae: PIM zirconia implants, roughened PIM zirconia implants, plasma-treated PIM zirconia implants, and plasma-treated roughened PIM zirconia implants. The contact angles of the four types of implants were evaluated. Removal torque tests and histomorphometric analyses were performed. RESULTS: The plasma treatment markedly enhanced the hydrophilicity, but did not seem to change the surface topography of the PIM zirconia implants. There were statistically significant differences in the bone-to-implant contact (BIC) ratios, bone volume (BV/TV), and removal torque values (RTQ) among the tested implant types (P < 0.001). The plasma-treated implants exhibited significantly higher BIC and BV/TV values than the untreated implants. However, the removal torque values favored the rough surface. CONCLUSIONS: The He plasma treatments on PIM zirconia implants made the surface more hydrophilic and enhanced the osseointegration of the implants without changing the micro-topography.
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Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Asunto principal: Tibia / Implantes Dentales / Oseointegración Límite: Animals Idioma: En Revista: Clin Oral Implants Res Asunto de la revista: ODONTOLOGIA Año: 2014 Tipo del documento: Article País de afiliación: Corea del Sur

Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Asunto principal: Tibia / Implantes Dentales / Oseointegración Límite: Animals Idioma: En Revista: Clin Oral Implants Res Asunto de la revista: ODONTOLOGIA Año: 2014 Tipo del documento: Article País de afiliación: Corea del Sur