COMPARATIVE EVALUATION OF LATERAL PENETRATION DEPTH OF ROOT CANAL SEALERS UNDER CONFOCAL LASER SCANNING MICROSCOPE

Dr.Vinodha.C; Dr.Indira.R

Volume : VIII, Issue : VI, June - 2019

COMPARATIVE EVALUATION OF LATERAL PENETRATION DEPTH OF ROOT CANAL SEALERS UNDER CONFOCAL LASER SCANNING MICROSCOPE

Dr. Vinodha. C, Dr. Indira. R

Abstract :

AIM: This in vitro study was conducted to evaluate the lateral depth of penetration of zinc oxide eugenol (with grossman formula),AH Plus (Dentsply)and Bioceramic sealers(smart paste bio) into the dentinal tubules using confocal laser scanning microscope. MATERIALS AND METHODS: Thirty nine recently extracted single–rooted mandibular premolars were taken. The working length was determined. Chemomechanical preparation done using k file to apical size 30. Between each instrument, the canal was irrigated with 5ml of 3%NaOCl.Three teeth were reserved as control and were not subjected to any procedure.In the rest of the samples, the canal were irrigated with 5ml of 3%sodium hypochlorite followed by 5ml of 17%EDTA and as a final rinse,5ml of 2%chlorhexidinewas used.Then the canals were dried with sterile paper points.The samples were divided into 3 groups (12 samples per group) based on the sealers used and were obturated with guttapercha cones using lateral condensation technique. All the sealers were mixed individualy with rhodamineB dye before obturation. Sections were prepared from middle third of the root for observation under confocal laser microscope RESULTS: Bioceramic sealer(smart paste bio) resulted in greater sealer penetration into dentinal tubules compared to AH plus and zinc oxide eugenol sealers.