Kalpana Pawar (Patil), Neha N. Chavan, Sadashiv G. Daokar, Suraj Bakal, Riya Kapadia, Ankit Sable

ABSTRACT

Aim: To compare and evaluate sealing ability zinc oxide eugenol based, nanoparticle based and bioceramic based sealer used along with thermoplastisized gutta percha, using a dye penetration method. Materials and Methods: Eighty extracted human mandibular permanent premolars were selected and decoronated to standardize the root length at 12±1 mm. working length were determined with the help of RVG with 10k file. All the root canals were shaped using NiTi rotary system to size 30, 04 taper. Before obturation, the teeth were divided into 4 groups according to the sealer used, Group I (n=20) No sealer, Group II (n=20) ZOE based, Group III (n=20) Nanoparticle based and Group IV (n=20) Bioceramic based sealers used. Obturation were done using thermoplastisized obturation technique. Access cavities were sealed using Nanohybrid composite. After 7days, teeth air dried and 2 layers of nail varnish applied and immersed in 2% methylene blue dye for 10 min, removed, washed and dried. After sectioning with Tooth sectioning disc, observed with light microscope using 10X, 45X magnification. Statistical Analysis: The data obtained was statistically analysed using ANOVA test. Results: Nanoparticle based sealer had sealing ability, statistically significant from both sealer. Nanoparticle based sealer had highest sealing ability followed by bioceramic based and zinc oxide eugenol based sealer. Conclusion: The nanoparticle based sealer sealed the root canals more completely, then with the bioceramic based sealer and zinc oxide eugenol based sealer respectively. Clinical Implications: The primary goal of successful endodontic therapy is complete obliteration of the root canal space which can be achieved by three dimensional obturation of the canal space. The study enabled us to know the comparative sealing efficacy of different sealing materials employed and hence guide us towards better treatment results.