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Assessment of sealing ability of two root-end filling materials at different depths: A comparative study

1 Department of Dentistry, Gandhi Medical College, Bhopal, Madhya Pradesh, India
2 Department of Conservative Dentistry and Endodontics, St. Gregorios Dental College, Ernakulam, Kerala, India
3 Department of Orthodontics and Dentofacial Orthopaedics, Mar Baselios Dental College, Ernakulam, Kerala, India
4 Department of Prosthodontics, Coorg Institute of Dental Sciences, Virajpet, Karnataka, India

Correspondence Address:
Anupama Ahirwar,
Department of Dentistry, Gandhi Medical College, Bhopal 462016, Madhya Pradesh.
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/INJO.INJO_31_19

Background: Most biocompatible and least microleakage of root-end filling material helps the clinician to provide a proper apical seal that prevents the movement of bacteria and the spreading of their remnants from the root canal system into the periapical tissues. The aim of this study was to compare the sealing ability of biodentine and mineral trioxide aggregate (MTA) as root-end filling material at different depths. Materials and Methods: For this study, 100 freshly extracted maxillary central and lateral incisor teeth were taken and stored in normal saline. All teeth were divided into four experimental groups: Group 1––filled with biodentine; Group 2––filled with MTA; Group 3––positive control group; and Group 4––negative control group. Groups 1–3 were divided into three subgroups, which comprised 10 teeth each. The teeth were immersed in methylene blue dye (Thermo Fisher Scientific, Mumbai, India) for 72h. The depth of dye penetration was examined under a stereomicroscope (Magnus, Olympus, Noida, India) with a ×10 eyepiece magnification and ×2 zoom to evaluate the roots for the extent of microleakage. Results: On biodentine filling, at 3mm showed the least mean (126.72 ± 111.87) followed by 4mm (137.28 ± 111.87) and 2mm (195.36 ± 182.99) deep cavities, respectively. On MTA filling, at 4mm showed the least mean (902.88 ± 321.12) followed by 3mm (924.00 ± 303.06) and 2mm (1404.48 ± 539.72) deep cavities, respectively. Conclusion: On conclusion, both the materials tested showed dye penetration but there was significantly less dye penetration in biodentine, which may be because of its smaller particle size and formation of mineral tags, which may offer more resistance to microleakage than MTA at a similar depth.

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