Effect of epigallocatechin gallate, green tea extract and chlorhexidine application on long-term bond strength of self-etch adhesive to dentin. (December 2016)

• Record Type: Journal Article
• Authors: Gerhardt, K.M.F.; Oliveira, C.A.R.; França, F.M.G.; Basting, R.T.; Turssi, C.P.; Amaral, F.L.B.
• Is Part Of: International journal of adhesion & adhesives. Volume 71(2016:Dec.)
• Page Start: 23
• Page End: 27
• Publication Date: 2016-12
• Subjects: Aging -- Dentin -- Hybrid layer -- Self-etch adhesive; Adhesion -- Periodicals; Adhesives -- Periodicals; Adhésion (Physique) -- Périodiques; Adhésifs -- Périodiques; Adhesie; Kleefstoffen; Adhesion; Adhesives; Periodicals; 668.3
• DOI: 10.1016/j.ijadhadh.2016.08.005
• Languages: English
• ISSNs: 0143-7496

Abstract

Abstract: This study evaluated the effect of dentin pretreatment with metalloproteinase inhibitors on long-term microtensile bond strength (μTBS) of self-etch adhesive (SEA) to dentin. Thirty-two dentin fragments received pretreatments ( n =8): C: control (not treated); GT: 2% green tea extract; CLX: 2% chlorhexidine; EGCG: 2% epigallocatechin gallate. SEAs (Clearfil SE Bond) and resin composite were applied to dentin surface. After 24 h, resin-blocks were cut into sticks submitted to μTBS testing immediately or after 6 months of storage in water. Two-way ANOVA and Tukey test ( α =5%) indicated that CLX group showed μTBS values statistically superior to the other groups at immediate testing, whereas those of EGCG group were the lowest ( p =0.018). After 6 months, a significant increase in μTBS values was observed for all groups, except for CLX ( p =0.018). In conclusion, μTBS increased in dentin pretreatment with EGCG and green tea groups, and in the non-treated group.