Banca de DEFESA: MARIA EDUARDA LIMA DO NASCIMENTO MARINHO
Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.STUDENT : MARIA EDUARDA LIMA DO NASCIMENTO MARINHO
DATE: 07/03/2022
TIME: 09:00
LOCAL: Sala virtual
TITLE:
IMPACT OF THE BIOMODIFICATION WITH SCHINOPSIS BRASILIENSIS (BRAÚNA) STEM EXTRACT ON THE ULTIMATE TENSILE STRENGTH OF A RESIN-BASED SEALANT
KEY WORDS:
pit and fissure sealant; antibacterial agent; oral diseases; Schinopsis brasiliensis.
PAGES: 16
BIG AREA: Ciências da Saúde
AREA: Odontologia
SUMMARY:
Introduction: resin-based sealants have a high success rate in preventing dental caries, but they do not have antibacterial activity, so that a high incidence of caries lesions is observed, which negatively impacts on health quality. The biomodification with the Schinopsis brasiliensis (Braúna) stem extract may be an alternative to improve its clinical characteristics. Objective: To evaluate if the biomodification of the Fluroshield® sealant with different amounts of Schinopsis brasiliensis affects its ultimate tensile strength. Methods: the extract was weighed on an analytical balance and mixed with the sealant in different concentrations: 0 mg/mL (control), 2 mg/mL, 0.5 mg/mL and 0.125 mg/mL by means of a centrifugal machine. Bar-shaped specimens with dimensions of 8 mm x 2 mm x 1 mm were prepared (n=3). The ultimate tensile strength was measured using a microtensile machine (OM100). Before testing, the sectional area (mm2) was obtained with a caliper. Data were obtained in Kgf and transformed into MPa. Statistical analysis was performed using the Kruskal-Wallis test (p<0.05). Results: The maximum tensile strength in median (minimum-maximum) of the 0 mg/mL (control), 2 mg/mL, 0.5 mg/mL and 0.125 mg/mL groups was, respectively, 56 (29-56), 53 (45-60), 48 (46-62) and 61 (38-64). There were no statistically significant differences among the groups (p=0.8). Conclusion: the addition of Schinopsis brasiliensis stem extract did not decrease the ultimate tensile strength of the Fluroshield® sealant.
BANKING MEMBERS:
Presidente - 2042290 - BONIEK CASTILLO DUTRA BORGES
Externa à Instituição - DÉBORA MICHELLE GONÇALVES DE AMORIM
Externa à Instituição - LETÍCIA VIRGINIA DE FREITAS CHAVES