Department of Biomaterials, School of Dentistry of Uberaba, Uberaba, Minas Gerais, Brazil.
Department of Dental Materials and Prosthodontics, Ribeirão Preto Dental School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.
Am J Dent. 2024 Jun;37(3):126-130.
To evaluate the antimicrobial activity of dentifrices based on Malva sylvestris and propolis and the effect on the acrylic resin.
The inhibitory effect against Candida albicans, Enterococcus faecalis and Streptococcus mutans was determined. The specimens of resin were divided into groups: Control (brushing with distilled water); brushing with Colgate; brushing with Protex; brushing with Malvatricin, brushing with Proporalcare Dental Gel and brushing with Green Propolis Dental Gel. Brushing was carried out in a brushing machine. Roughness and color were assessed. The data were analyzed by ANOVA, followed by the Bonferroni post test (α= 0.05).
The products evaluated showed antimicrobial activity against all microorganisms (P< 0.05), except Proporalcare Dental Gel, which was not effective against E. faecalis. Greater roughness (P< 0.05) was observed in the samples treated with Colgate. The samples from control and Protex groups showed the lowest color variation and the highest luminosity, with a difference in relation to the others (P< 0.05), which showed higher values, although clinically acceptable.
The dentifrices based on natural products can be indicated for cleaning prostheses, since they showed antimicrobial activity and did not cause perceptible color changes of the resin tested. The dentifrices did not produce adverse effects on the surface of the resin or did so less than the conventional dentifrice.
评估基于锦葵和蜂胶的牙膏的抗菌活性及其对丙烯酸树脂的影响。
测定其对白色念珠菌、粪肠球菌和变形链球菌的抑制作用。将树脂样本分为以下几组：对照组（用蒸馏水刷牙）；用高露洁刷牙；用 Protex 刷牙；用 Malvatricin 刷牙；用 Proporalcare Dental Gel 刷牙；用 Green Propolis Dental Gel 刷牙。用刷牙机进行刷牙。评估粗糙度和颜色。使用 ANOVA 分析数据，然后使用 Bonferroni 事后检验（α=0.05）。
评估的产品对所有微生物均显示出抗菌活性（P<0.05），除了 Proporalcare Dental Gel 对粪肠球菌无效。用高露洁处理的样本粗糙度更大（P<0.05）。对照组和 Protex 组的样本颜色变化最小，亮度最高，与其他组有差异（P<0.05），其他组的颜色变化虽然在临床可接受范围内，但数值较高。
基于天然产品的牙膏可用于清洁义齿，因为它们具有抗菌活性，且不会引起所测试树脂的明显颜色变化。牙膏对树脂表面没有产生不良影响，或者比传统牙膏的影响更小。
