Resumo

CASTRO, Humberto Lago de et al. In vitro evaluation of the compressive strength of tissue conditioners submitted to different storage times. RPG, Rev. pós-grad. [online]. 2010, vol.17, n.3, pp. 158-162. ISSN 0104-5695.

This study addresses an in vitro evaluation of the resilience of two tissue conditioners, Ufigel SC (Voco) and Dentusoft (DMG), after different storage times in distilled water at 37ºC. Twenty capsules were made of acrylic resin thermally activated, with 20 mm internal diameter and 3 mm deep. The tissue conditioners Ufigel (UG) and Dentusoft (D) were manipulated according to the manufacturer, accommodated inside the capsules (n =10) and stored for 24 hours, 14 days, 30 days and 180 days. Each group was subjected to the resilience test using a blunt tip with 3 mm in diameter in a universal testing machine (EMIC DL-1000). Data were subjected to two-way ANOVA and Tukey (a = 0.05) analyses. The means for the materials/storage time were: UG/24 hours - 3.81A; D/30 days - 5.54B; UG/14 days - 5.58B; UG/30 days - 5.66BC; UG/180 days - 5.77BC; D/24 hours - 5.79BC; D/180 days - 6.13C; D/14 days - 6.54D. Dentusoft stored for 14 days obtained mean values of resilience significantly higher than the Ufigel. Ufigel storaged for and 14 days showed lower values of resilience tested, considered significant when compared to other groups tested. However, for the storage times of 30 days and 180 days, there was no significant difference between the materials tested.

Palavras-chave : Acrylic resins; Prostheses and Implants; Denture liners.