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논문 기본 정보

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학술저널
저자정보
Céline Brunot-Gohin (University of Reims Champagne-Ardenne) Jean-Luc Duval (University of Technology of Compiègne) Sandra Verbeke (University of Reims Champagne-Ardenne) Kayla Belanger (University of Technology of Compiègne) Isabelle Pezron (University of Technology of Compiègne) Gérard Kugel (Tufts University School of Dental Medicine) Dominique Laurent-Maquin (University of Reims Champagne-Ardenne) Sophie Gangloff (University of Reims Champagne-Ardenne) Christophe Egles (University of Technology of Compiègne)
저널정보
대한치주과학회 Journal of Periodontal & Implant Science Journal of Periodontal & Implant Science 제46권 제6호
발행연도
2016.12
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362 - 371 (10page)

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Purpose: The increasing demand for esthetically pleasing results has contributed to the use of ceramics for dental implant abutments. The aim of this study was to compare the biological response of epithelial tissue cultivated on lithium disilicate (LS2) and zirconium oxide (ZrO2) ceramics. Understanding the relevant physicochemical and mechanical properties of these ceramics will help identify the optimal material for facilitating gingival wound closure. Methods: Both biomaterials were prepared with 2 different surface treatments: raw and polished. Their physicochemical characteristics were analyzed by contact angle measurements, scanning white-light interferometry, and scanning electron microscopy. An organotypic culture was then performed using a chicken epithelium model to simulate peri-implant soft tissue. We measured the contact angle, hydrophobicity, and roughness of the materials as well as the tissue behavior at their surfaces (cell migration and cell adhesion). Results: The best cell migration was observed on ZrO2 ceramic. Cell adhesion was also drastically lower on the polished ZrO2 ceramic than on both the raw and polished LS2. Evaluating various surface topographies of LS2 showed that increasing surface roughness improved cell adhesion, leading to an increase of up to 13%. Conclusions: Our results demonstrate that a biomaterial, here LS2, can be modified using simple surface changes in order to finely modulate soft tissue adhesion. Strong adhesion at the abutment associated with weak migration assists in gingival wound healing. On the same material, polishing can reduce cell adhesion without drastically modifying cell migration. A comparison of LS2 and ZrO2 ceramic showed that LS2 was more conducive to creating varying tissue reactions. Our results can help dental surgeons to choose, especially for esthetic implant abutments, the most appropriate biomaterial as well as the most appropriate surface treatment to use in accordance with specific clinical dental applications.
#Ceramics #Dental abutments #Dental esthetics #Embryo culture techniques

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참고문헌 (30)

참고문헌 신청
Valenti M / 2009 / Retrospective survival analysis of 261 lithium disilicate crowns in a private general practice / Quintessence Int 40:573~579 google schola Gehrt M / 2013 / Clinical results of lithium-disilicate crowns after up to 9 years of service / Clin Oral Investig 17:275~284 google schola Herrguth M / 2005 / The aesthetics of all-ceramic veneered and monolithic CAD/CAM crowns / J Oral Rehabil 32:747~752 google schola Bengazi F / 1996 / Recession of the soft tissue margin at oral implants. A 2-year longitudinal prospective study / Clin Oral Implants Res 7:303~310 google schola Bressan E / 2011 / Influence of abutment material on the gingival color of implant-supported all-ceramic restorations: a prospective multicenter study / Clin Oral Implants Res 22:631~637 google schola

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