Effects of air abrasion with alumina or glass beads on surface characteristics of CAD/CAM composite materials and the bond strength of resin cements

荒尾, 宣昭

Effects of air abrasion with alumina or glass beads on surface characteristics of CAD/CAM composite materials and the bond strength of resin cements

23 ( 6 ) , pp.629 - 636 , 2016-02-03 , Faculdade de Odontologia de Bauru

内容記述

Objective: The study aimed to evaluate effects of air abrasion with alumina or glass beads on bond strengths of resin cements to CAD/CAM composite materials. Material and Methods: CAD/CAM composite block materials [Cerasmart (CS) and Block HC (BHC)] were pretreated as follows: (a) no treatment (None), (b) application of a ceramic primer (CP), (c) alumina-blasting at 0.2 MPa (AB), (d) AB followed by CP (AB+CP), and (e) glassbeads blasting at 0.4 MPa (GBB) followed by CP (GBB+CP). The composite specimens were bonded to resin composite disks using resin cements [G-CEM Cerasmart (GCCS) and ResiCem (RC)]. The bond strengths after 24 h (TC 0) and after thermal cycling (TC 10,000 at 4–60°C) were measured by shear tests. Three-way ANOVA and the Tukey compromise post hoc tests were used to analyze statistically significant differences between groups (α=0.05). Results: For both CAD/CAM composite materials, the None group exhibited a significant decrease in bond strength after TC 10,000 (p<0.05). AB showed significantly higher bond strength after TC 10,000 than the None group, while CP did not (p<0.05). GBB exhibited smaller surface defects than did AB; however, their surface roughnesses were not significantly different (p>0.05). The AB+CP group showed a significantly higher bond strength after TC 10,000 than did the AB group for RC (p<0.05), but not for GCCS. The GBB+CP group showed the highest bond strength for both thermal cyclings (p<0.05). Conclusions: Air abrasion with glass beads was more effective in increasing bond durability between the resin cements and CAD/CAM composite materials than was using an alumina powder and a CP.

本文を読む

http://naosite.lb.nagasaki-u.ac.jp/dspace/bitstream/10069/36196/1/ISYK823_Arao.pdf

このアイテムのアクセス数：回

実行

その他の情報

著者キーワード	Composite resins Cementation Shear strength
公開者	Faculdade de Odontologia de Bauru
日付	2015-11-18
国立情報学研究所メタデータ主題語彙集（資源タイプ）	Thesis or Dissertation
フォーマット	application/pdf
言語	eng
DOI	info:doi/10.1590/1678-775720150261
その他の資源識別子	Nagasaki University (長崎大学), 博士(歯学) (2016-02-03) 16787757
権利	(C)2015 Arao et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
著者版フラグ	ETD
学位授与番号	17301甲医歯薬第823号
学位授与年月日	2016-02-03
学位名	博士(歯学)
学位授与機関	Nagasaki University (長崎大学)
URL	http://jairo.nii.ac.jp/0013/00029158