Comparative Evaluation of Marginal Adaptation of Biodentine(TM) and Other Commonly Used Root End Filling Materials-An Invitro Study.
OBJECTIVE
The purpose of this investigation was to evaluate the marginal adaptation of three root-end filling materials Glass ionomer cement, Mineral trioxide aggregate and Biodentine(TM).


METHODS
Thirty human single-rooted teeth were resected 3 mm from the apex. Root-end cavities were then prepared using an ultrasonic tip and filled with one of the following materials Glass ionomer cement (GIC), Mineral trioxide aggregate (MTA) and a bioactive cement Biodentine(TM). The apical portions of the roots were then sectioned to obtain three 1 mm thick transversal sections. Confocal laser scanning microscopy (CLSM) was used to determine area of gaps and adaptation of the root-end filling materials with the dentin. The Post hoc test, a multiple comparison test was used for statistical data analysis.


RESULTS
Statistical analysis showed lowest marginal gaps (11143.42±967.753m2) and good marginal adaptation with Biodentine(TM) followed by MTA (22300.97±3068.883m(2)) and highest marginal gaps with GIC (33388.17±12155.903m(2)) which were statistically significant (p<0.0001).


CONCLUSIONS
A new root end filling material Biodentine(TM) showed better marginal adaptation than commonly used root end filling materials.
Professor and HOD, Department of Conservative Dentistry and Endodontics, Kamineni Institute of Dental Sciences , India .
Ravichandra
R
P V
Professor, Department of Conservative Dentistry and Endodontics, Kamineni Institute of Dental Sciences , India .
Harikumar
H
Vemisetty
Consulting Endodontist, Vasan Dental Care , India .
Deepthi
D
K
Professor, Department of Conservative Dentistry and Endodontics, Kamineni Institute of Dental Sciences , India .
Jayaprada
J
Reddy S
Senior Lecturer, Department of Conservative Dentistry and Endodontics, Kamineni Institute of Dental Sciences , India .
Ramkiran
R
D
Reader, Department of Conservative Dentistry and Endodontics, Kamineni Institute of Dental Sciences , India .
Jaya Nagendra
JN
Krishna M
Senior Lecturer, Department of Periodontics, S.V.S Institute of Dental Sciences , India .
Gita
G
Malathi
Bioactive cement; Confocal laser scanning microscopy; Glass Ionomer cement; Marginal adaptation; Mineral trioxide aggregate