Mazhari Fatemeh, Sahebalam Rasoul, Fakhrazimi Behnaz, Latifian Erfan
Professor of Pediatric Dentistry Department, Dental Materials Research Center, Faculty of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.
Pediatric Dentistry Department, Dental Materials Research Center, Faculty of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.
Saudi Dent J. 2025 Aug 28;37(7-9):43. doi: 10.1007/s44445-025-00051-w.
Prophylaxis is an effective method for preventing dental caries and periodontal diseases. This in-vitro study evaluated changes in the roughness of the immature enamel surface following different prophylaxis methods. The crowns of 35 extracted third molars were sectioned buccolingually to obtain buccal and lingual halves. Seventy samples were mounted in acrylic blocks and randomly allocated to seven groups (n = 10 per group): Group 1 (Golchai paste/Rubber cup), Group 2 (Morvabon paste/rubber cup), Group 3 (Sina paste/Rubber cup), Group 4 (Rubber cup-only), Group 5 (Brush-only), Group 6 (Golchai paste/brush), and Group 7 (Golchai paste-double amount/ higher speed rubber cup). Prophylaxis was performed for 3 s using a handpiece at 3000 rpm with 200 g pressure. The untreated half of each sample served as a control. A non-contact profilometer was utilized to evaluate the surface roughness. Statistical analyses were conducted employing ANOVA, Tukey's post-hoc test, paired t-tests, and Wilcoxon tests (α = 0.05). ANOVA indicated a significant difference in surface roughness among groups (p-value = 0.008). Pairwise comparison showed that Golchai paste reduced surface roughness when applied with a rubber cup but increased it when used with a brush, with a statistically significant difference between the two methods. However, Golchai/rubber cup group was comparable to Morvabon/rubber cup and Sina/rubber cup groups. Within-group comparisons showed a significant reduction in surface roughness in Golchai/rubber cup group (p-value = 0.010), while Brush-only group exhibited a significant increase (p-value = 0.028). Among the tested methods, the combination of Golchai paste and a rubber cup produced the smoothest enamel surface. In contrast, using Golchai paste with a brush resulted in the roughest surface. Doubling the paste amount and increasing the handpiece speed did not significantly alter roughness. Based on these in-vitro findings, the use of a prophylaxis brush is not recommended for immature or newly erupted teeth, as it resulted in increased surface roughness. Future in-vivo studies are warranted to further investigate these effects in clinical settings.
预防性治疗是预防龋齿和牙周疾病的有效方法。这项体外研究评估了不同预防性治疗方法后未成熟釉质表面粗糙度的变化。将35颗拔除的第三磨牙的牙冠从颊舌方向切开，得到颊侧和舌侧两半。将70个样本安装在丙烯酸块中，并随机分为7组（每组n = 10）：第1组（戈尔柴糊剂/橡胶杯）、第2组（莫尔瓦邦糊剂/橡胶杯）、第3组（新浪糊剂/橡胶杯）、第4组（仅用橡胶杯）、第5组（仅用牙刷）、第6组（戈尔柴糊剂/牙刷）和第7组（双倍量戈尔柴糊剂/更高速度橡胶杯）。使用手机以3000 rpm的转速和200 g的压力进行3秒的预防性治疗。每个样本未处理的一半作为对照。使用非接触式轮廓仪评估表面粗糙度。采用方差分析、Tukey事后检验、配对t检验和Wilcoxon检验进行统计分析（α = 0.05）。方差分析表明各组之间表面粗糙度存在显著差异（p值 = 0.008）。两两比较表明，戈尔柴糊剂与橡胶杯一起使用时会降低表面粗糙度，但与牙刷一起使用时会增加表面粗糙度，两种方法之间存在统计学显著差异。然而，戈尔柴/橡胶杯组与莫尔瓦邦/橡胶杯组和新浪/橡胶杯组相当。组内比较表明，戈尔柴/橡胶杯组的表面粗糙度显著降低（p值 = 0.010），而仅用牙刷组则显著增加（p值 = 0.028）。在测试的方法中，戈尔柴糊剂和橡胶杯的组合产生了最光滑的釉质表面。相比之下，将戈尔柴糊剂与牙刷一起使用会导致表面最粗糙。将糊剂用量加倍并提高手机速度并没有显著改变粗糙度。基于这些体外研究结果，不建议对未成熟或新萌出的牙齿使用预防性牙刷，因为这会导致表面粗糙度增加。未来有必要进行体内研究，以进一步调查这些影响在临床环境中的情况。
