Epigallocatechin-3-gallate increased the push out bond strength of an epoxy resin sealer to root dentin.
This study aimed to investigate the effect of epigallocatechin-3-gallate (EGCG) from green tea extract on the push out bond strength of an epoxy resin sealer to root dentin. Seventy single root canal premolars were decoronated and instrumented. The roots were randomly irrigated with different final irrigation protocols (n=16): 17%EDTA (EDTA), 17%EDTA followed by 2.5%NaOCl (EDTA+NaOCl), 17%EDTA followed by 1 mg/mL EGCG (EDTA+EGCG) and 1 mg/mL EGCG (EGCG). Other six root canals were received only 2.5%NaOCl as a control group. One root from each group (n=1) was excluded and prepared for SEM investigation. All root canals were then obturated and horizontally sectioned to perform the push out test. EDTA+EGCG group had the highest bond strength (p<0.05). EGCG group showed higher bond strength than EDTA group (p<0.05). The use of EGCG as a final irrigant significantly increased the push out bond strength of an epoxy resin sealer to root dentin.
Department of Operative Dentistry, Faculty of Dentistry, Chulalongkorn University.
Suthida
S
Pheenithicharoenkul
Anchana
A
Panichuttra
D002392:Catechin / Q000031:analogs & derivatives*; D001840:Dental Bonding; D003786:Dental Pulp Cavity; D003804:Dentin; D004492:Edetic Acid; D004853:Epoxy Resins; D012387:Root Canal Filling Materials; D012388:Root Canal Irrigants; D018915:Root Canal Preparation; D012973:Sodium Hypochlorite
D004853:Epoxy Resins; D012387:Root Canal Filling Materials; D012388:Root Canal Irrigants; D002392:Catechin; D004492:Edetic Acid; C045651:epigallocatechin gallate; D012973:Sodium Hypochlorite