Frankenberger Roland, Lohbauer Ulrich, Tay Franklin R, Taschner Michael, Nikolaenko Sergej A
Dental Clinic 1, Operative Dentistry and Periodontology, University of Erlangen-Nuremberg, Erlangen, Germany.
J Adhes Dent. 2007 Aug;9(4):381-9.
Air-polishing is routinely used for professional tooth cleaning. Therefore, the aim of this in vitro study was to evaluate the influence of different air-polishing powders on dentin bonding.
Dentin bond strengths of a resin composite (Clearfil AP-X) bonded with different classes of adhesives (4-step etch-and-rinse: Syntac; 3-step etch-and-rinse: OptiBond FL; 2-step etch-and-rinse: Single Bond Plus; 2-step self-etching: AdheSE, Clearfil SE Bond, Clearfil Protect Bond, One Coat Self-Etch Bond; all-in-one/mix: Xeno III; all-in-one/no mix: Clearfil S3 Bond, G-Bond) were measured on flattened dentin surfaces. In test groups, specimens were air polished with Prophypearls (calcium carbonate) or ClinPro Prophypowder (glycine) prior to bonding. Microtensile bond strengths were evaluated after 24 h of storage at 37 degrees C in water. Surfaces and resin-dentin interfaces were observed by SEM, TEM, and CLSM.
Mean bond strengths varied from 18 to 73 MPa in control groups. Calcium carbonate air polishing generally caused significantly reduced dentin bond strengths (p < 0.05). TEM exhibited severe nanoleakage after calcium carbonate air polishing. Glycine did not affect dentin bonding performance of the adhesives under investigation.
Calcium carbonate air polishing should be avoided when dentin-bonded restorations are applied. Glycine powder is an alternative.
空气抛光常用于专业牙齿清洁。因此，本体外研究的目的是评估不同空气抛光粉末对牙本质粘结的影响。
在平整的牙本质表面测量一种树脂复合材料（Clearfil AP-X）与不同类别的粘结剂（四步酸蚀冲洗粘结剂：Syntac；三步酸蚀冲洗粘结剂：OptiBond FL；两步酸蚀冲洗粘结剂：Single Bond Plus；两步自酸蚀粘结剂：AdheSE、Clearfil SE Bond、Clearfil Protect Bond、One Coat Self-Etch Bond；一步/混合粘结剂：Xeno III；一步/非混合粘结剂：Clearfil S3 Bond、G-Bond）的牙本质粘结强度。在测试组中，标本在粘结前用Prophypearls（碳酸钙）或ClinPro Prophypowder（甘氨酸）进行空气抛光。在37℃水中储存24小时后评估微拉伸粘结强度。通过扫描电子显微镜（SEM）、透射电子显微镜（TEM）和共聚焦激光扫描显微镜（CLSM）观察表面和树脂-牙本质界面。
对照组的平均粘结强度在18至73兆帕之间变化。碳酸钙空气抛光通常会导致牙本质粘结强度显著降低（p<0.05）。TEM显示碳酸钙空气抛光后出现严重的纳米渗漏。甘氨酸对所研究的粘结剂的牙本质粘结性能没有影响。
应用牙本质粘结修复体时应避免使用碳酸钙空气抛光。甘氨酸粉末是一种替代选择。
