Application of a proanthocyanidin agent to improve the bond strength of root dentin treated with sodium hypochlorite.
OBJECTIVE
The objective of this study was to analyze the application of PA agent that improves the bond strength of root dentin treated with NaOCl.


METHODS
Group 1: root canals were irrigated using 0.9% isotonic saline as an irrigant (negative control); Group 2: root canals were irrigated using 5.25% NaOCl (positive control); Group 3: root canals were irrigated with 5.25% NaOCl followed by 10% sodium ascorbate for 10 minutes; Group 4: root canals were irrigated with 5.25% NaOCl followed by 5% PA for 10 minutes. All the canals were then coated with self-etch dentin bonding agent, filled with resin cement, stored for one day in water, and then cross sectioned into three slabs of 2-mm thickness that were prepared and tested for microtensile bond strength.


RESULTS
The results demonstrated that 5.25% NaOCl caused significant reduction (P<0.05) in the bond strength, but this can be reversed by 5% PA significantly more than the 10% sodium ascorbate.
Department of Conservative Dentistry and Endodontics, SRM Dental College, Ramapuram, Chennai, India.
V Sujatha
VS
Manimaran
Sakhamuri
S
Srinivasulu
Av
A
Rajesh Ebenezar
S
S
Mahalaxmi
N
N
Srinivasan