Remineralization effect of Predicta bioactive bulk-fill composite on adjacent initial interproximal carious lesions

Name: Phyo, Win Myat

Organization : Chulalongkorn University. Faculty of Dentistry

Name: Wannakorn Sriarj

Organization : Chulalongkorn University. Faculty of Dentistry

Name: Prim Auychai

Organization : Chulalongkorn University. Faculty of Dentistry

Email : prim.a@chula.ac.th

keyword: Dental composites

LCSH: Dental caries

; Tooth remineralization

; Interproximal lesions

; Composite resins

; Bioactive materials

Abstract: To compare the remineralization of initial interproximal carious lesions adjacent to Predicta® Bioactive Bulk-fill composite and conventional resin composite by analyzing the percentage of surface microhardness recovery. Sixteen human enamel specimens were assigned into 2 groups (n=8): Group 1 (Predicta® Bioactive Bulk-fill composite) and Group 2 (Resin composite FiltekTM Z350). The baseline surface microhardness was determined using a Knoop surface microhardness assay. Artificial enamel carious lesions were created and then, surface microhardness was recorded post-artificial carious lesions formation. After that, interproximal contacts were stimulated by putting these enamel specimens in contact with class II restorative materials. All samples in each group underwent a pH cycling process for 14 days and post-pH cycling surface microhardness was assessed. A dependent t-test was used to compare the surface microhardness between baseline and post-artificial carious lesions formation within each group, and between post-artificial carious lesions formation and post pH-cycling within each group. The difference in the percentage of surface microhardness recovery was calculated and compared between group 1 and group 2 with independent t-test at 95 % confidence level. There was significant difference in the mean percentage of surface microhardness recovery between group 1 and group 2 with a significance level p < 0.001. Predicta® Bioactive Bulk-fill composite markedly increased the surface microhardness of adjacent initial interproximal carious lesions compared with resin composite FiltekTM Z350 restorations. Therefore, Predicta® Bioactive Bulk-fill composite could be an alternative restorative material to remineralize initial enamel carious lesions in approximal adjacent surfaces of deciduous teeth.

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2023

Modified: 2024-04-30

Issued: 2024-04-30

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BibliograpyCitation : In Rangsit University. The 8th RSU International Research Conference on Sciences and Technology 2023 (RSUCON 2023) (pp.219-227). Pathum Thani : Rangsit University

eng

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