Bayram Mehmet, Kusgoz Adem, Yesilyurt Cemal, Nur Metin
Department of Orthodontics, Faculty of Dentistry, Karadeniz Technical University, Trabzon, Turkey.
Department of Pedodontics, Faculty of Dentistry, Karadeniz Technical University, Trabzon, Turkey.
Am J Orthod Dentofacial Orthop. 2017 Jan;151(1):167-173. doi: 10.1016/j.ajodo.2016.06.033.
The aim of this study was to investigate the effects of casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) application after interproximal stripping on enamel surface structures in vivo.
Fifteen patients with a mean age of 15.8 years participated in this study. For each patient, the extraction of 4 first premolars was part of the orthodontic treatment plan. The patients were randomly divided into 5 groups of 3 patients. With the exception of group 1, the mesial and distal surfaces of all first premolars were stripped with a stripping disc (Komet; Gebr Brasseler, Lemgo, Germany) under air cooling and then polished with Sof-Lex polishing discs (3M Dental Products, St Paul, Minn). In group 1, no stripping was performed, and the teeth were removed immediately. In group 2, the teeth were removed immediately after the stripping. In group 3, the stripped teeth were extracted after exposure to oral conditions for 3 months. In groups 4 and 5, CPP-ACP (Recaldent Tooth Mousse; GC Europe, Leuven, Belgium) or fluoride varnish (Bifluoride 12; Voco, Cuxhaven, Germany) was applied to the stripped surfaces for 3 months, respectively, before the teeth were extracted. Surface roughness and microhardness values were evaluated with 1-way analysis of variance and Tukey HSD tests.
The CPP-ACP and the fluoride varnish applications increased the surface roughness and microhardness values that had been decreased by stripping. No statistically significant differences were found between groups 3, 4, and 5 for microhardness or between groups 4 and 5 for surface roughness (P > 0.5).
The saliva and saliva plus remineralizing agents (fluoride varnish and CPP-ACP) increased the microhardness and surface roughness values of stripped enamel surfaces that had been decreased by stripping.
本研究旨在调查邻面去釉后应用酪蛋白磷酸肽 - 无定形磷酸钙（CPP - ACP）对体内牙釉质表面结构的影响。
15名平均年龄为15.8岁的患者参与了本研究。对于每位患者，拔除4颗第一前磨牙是正畸治疗计划的一部分。患者被随机分为5组，每组3人。除第1组外，所有第一前磨牙的近中面和远中面均使用去釉盘（Komet；德国莱姆戈的Gebr Brasseler公司）在空气冷却下进行去釉，然后用Sof - Lex抛光盘（3M牙科产品，美国明尼苏达州圣保罗）进行抛光。在第1组中，未进行去釉，牙齿立即拔除。在第2组中，去釉后立即拔除牙齿。在第3组中，去釉后的牙齿在暴露于口腔环境3个月后拔除。在第4组和第5组中，在拔牙前分别将CPP - ACP（Recaldent护齿泡沫；比利时鲁汶的GC欧洲公司）或氟化物漆（Bifluoride 12；德国库克斯港的Voco公司）应用于去釉表面3个月。使用单因素方差分析和Tukey HSD检验评估表面粗糙度和显微硬度值。
应用CPP - ACP和氟化物漆增加了因去釉而降低的表面粗糙度和显微硬度值。在第3、4和5组之间，显微硬度无统计学显著差异；在第4和5组之间，表面粗糙度无统计学显著差异（P>0.5）。
唾液以及唾液加再矿化剂（氟化物漆和CPP - ACP）增加了因去釉而降低的牙釉质表面的显微硬度和表面粗糙度值。
