Effect of acrylic denture immersion in mangosteen rind extract on shear bond strength of artificial teeth with denture base

Introduction: Determination of shear bond strength is important because artificial teeth being detached from their base is frequent. 15% mangosteen rind extract can be used as an alternative denture cleanser because it effectively reduces the number of Candida albicans. This study was conducted to analyze the effect of acrylic denture immersion in 15% mangosteen rind extract (Garcinia mangostana Linn.) and 0.2% chlorhexidine solution on the shear bond strength of artificial teeth to base for 1 year. Methods: This study was an experimental laboratory study. The samples used were mandibular first molar acrylic artificial teeth placed in a cylindrical heat-polymerized denture base resin with a diameter of 18 mm and height of 20 mm; the artificial teeth was placed in a depth of 3 mm buccally. The number of samples used were 30, divided into three immersion groups, 10 each. The shear bond strength value was obtained using the Universal Testing Machine. The results of the data were analyzed using a one-way ANOVA test. Results: The one-way ANOVA test results showed a significant effect (p<0.05) of acrylic denture immersion in 15% mangosteen rind extract and 0.2% chlorhexidine solution on shear bond strength for 1 year. Conclusion: After immersion in 15% mangosteen rind extract, the shear bond strength was higher than the value after immersion in 0.2% chlorhexidine solution; these results indicated that 15% mangosteen rind extract was better than 0.2% chlorhexidine in terms of shear bond strength. Therefore supporting the use of 15% mangosteen rind extract as an alternative denture cleanser.