COMPARATIVE ASSESSMENT OF SEALING ABILITY OF BIOACTIVE MATERIALS IN FURCAL PERFORATIONS

*Dr. Suraiya Taranum, Dr. Rashmi G. Shetty, Dr. B. S. Keshava Prasad, Sandhya Shanmugam

Background: One of the causes of endodontic failure is furcal perforation. When perforation occurs, it should be repaired as soon as it is made to prevent bacterial contamination, inflammation, and loss of attachment. Various materials have been described over the years for perforation repair. The present study is to evaluate and compare the sealing ability of four bioactive materials (pro root MTA, light cure MTA, biodentine and biostructure MTA putty) used in furcal perforation repair by dye penetration method using stereomicroscope. Method: A total of 50 extracted mandibular molars teeth with divergent roots were selected. All the teeth were mounted in jig saw using alginate. Standard access cavity preparation was done and artificial furcal perforation 2mm diameter was induced. Then the teeth were randomly divided into 5 groups, 4 experimental groups and 1 control group.
GROUP A: Perforation not repaired.
GROUP B: Repair was done using MTA.
GROUP C: Repair was done using light cure MTA.
GROUP D: Repair was done using biodentine.
GROUP E: Repair was done using biostructure MTA putty.
The samples were sealed coronally and later immersed in 2% methylene blue dye and sectioned. The dye penetration scores were recorded using stereomicroscope at 40x magnification.
Results: The overall results showed that the marginal adaptation of light-cure MTA and biostructure MTA putty was better than both MTA as well as Biodentine.