Avaliação da rugosidade de ionómero de vidro sujeito à ação de medicamentos líquidos pediátricos

Abstract

INTRODUCTION: Glass ionomers are widely used in Pediatric Dentistry, especially in uncooperative young patients, due to their versatility and ease of use. Prolonged consumption of liquid pediatric medication and lack of oral hygiene can deteriorate dental structures and restorations. OBJECTIVE: To determine and compare the surface roughness values of 4 glass ionomer discs immersed in different medication solutions over a period of 21 days, in a laboratory setting. MATERIALS AND METHODS: A conventional glass ionomer (Ketac®, 3M, ESPE) was used for this study. Four glass ionomer discs were produced from cylindrical matrices (8 x 2 mm). Each disc was immersed for 21 days in one of the following medications: Clamoxyl® 250mg/5ml, Ben-u-Ron® 40mg/m, Sugar-free Brufen® 40mg/ml, and Brufen® 20 mg/ml. Surface roughness was evaluated using profilometry, and statistical analysis was performed with a significance level of 0.05. RESULTS: Kruskal-Wallis and ANOVA tests were performed to assess the variables of exposure time and pediatric liquid medication. The comparison of the discs over time of exposure was conducted. All discs showed changes in roughness. The disc immersed in Clamoxyl® 250mg/5ml did not show statistical significance (p>0.05). The disc immersed in Ben-u-Ron® 40mg/m showed statistically significant changes after 7 days. The discs immersed in Sugar-free Brufen® 40mg/ml and Brufen® 20 mg/ml showed statistically significant results after 14 days. CONCLUSION: It is important to consider if the child frequently uses liquid pediatric medications to determine the best choice of restorative material, as some of these medications can cause degradation of the restorative material surface. Further studies should be conducted using different restorative materials to enable dentists to make an appropriate material choice for these situations.

Date of Award	21 Jul 2023
Original language	Portuguese
Awarding Institution	Universidade Católica Portuguesa
Supervisor	Andreia Sofia de Paiva Figueiredo (Supervisor), Mariana Pinheiro Torres de Seabra (Co-Supervisor) & Serafim Oliveira (Co-Supervisor)