Summary
The objective of this research was to evaluate the impact of tooth brushing on the abrasion of conventional high and low viscosity Bulk Fill resins. An in vitro experimental study was designed, in which 45 resin specimens were divided into three study groups. Group1: High viscosity Bulk-Fill resin (Filtek™ One Bulk Fill 3M-Espe), Group 2: Low viscosity Bulk-Fill resin (Filtek™ Bulk Fill Flowable Restorative 3M-Espe) and Group 3: Conventional composite resin (Filtek TM Z250 XT 3M-Espe). Study samples were weighed on a precision analytical balance before and after brushing to assess weight loss. A brushing machine was used, exercising 91,800 cycles using brushes of medium bristle consistency in addition to the incorporation of toothpaste in a water/toothpaste ratio of 2 to 1. To evaluate the variation in weights before and after brushing, the Student’s T test for paired data was used, finding differences in all the groups of resins evaluated. In addition, the multiple comparisons showed that there were statistically significant differences between the high viscosity Bulk Fill resin with conventional composite resin. It was concluded that tooth brushing had an impact on the abrasion of all the study resins, with a significant decrease in their mass. In addition, the abrasion resistance of the conventional resin was statistically significantly greater than the high viscosity Bulk Fill resin.
KEY WORDS: Bulk-Fill resin, wear resistance, toothbrushing, toothbrush abrasion, in vitro study, surface properties, composite resins.
How to cite this article
MARTEL-CONDEZO, M.; QUEA-CAHUANA, E.; ANDUAGALESCANO, S.; RAMIREZ-MESÍAS, W. & HUAMANÍCAQUIAMARCA, Y. Impact of tooth brushing on wear of Bulk Fill resins of different viscosity. Int. J. Odontostomat., 18(3):276-280, 2024.
