Comparative Analysis of Calcium Silicate–based Root Filling Materials Using an Open Apex Model

• Published in: Journal of endodontics Vol. 42; no. 4; pp. 654 - 658
• Main Authors: Tran, Dennis, DDS, He, Jianing, DMD, PhD, Glickman, Gerald N., DDS, MS, Woodmansey, Karl F., DDS
• Format: Journal Article
• Language: English
• Published: United States Elsevier Inc 01.04.2016
• Subjects: Aluminum Compounds - administration & dosage; Aluminum Compounds - chemistry; Apexification; Apicoectomy; Calcium Compounds - administration & dosage; Calcium Compounds - chemistry; calcium silicate materials; Dental Bonding - methods; Dental Marginal Adaptation; Dental Pulp Cavity; Dentistry; Drug Combinations; Endocrinology & Metabolism; Humans; mineral trioxide aggregate; obturation; open apex; Oxides - administration & dosage; Oxides - chemistry; Random Allocation; Root Canal Filling Materials - chemistry; Root Canal Filling Materials - pharmacology; Root Canal Obturation - instrumentation; Root Canal Obturation - methods; Root Canal Preparation - methods; Silicates - administration & dosage; Silicates - chemistry; Tooth Apex - anatomy & histology; Tooth Apex - diagnostic imaging; Tooth Apex - drug effects; Tooth Root - anatomy & histology; Tooth Root - diagnostic imaging; mineral trioxide aggregate; open apex; Apexification; obturation; calcium silicate materials
• ISSN: 0099-2399; 1878-3554
• DOI: 10.1016/j.joen.2016.01.015

Abstract Introduction Many new calcium silicate–based root filling materials have emerged in the market; however, their performance in the orthograde obturation of an open apex has not been evaluated. The purpose of this study was to compare the marginal adaptation of ProRoot MTA (Dentsply Tulsa Dental, Tulsa, OK), NeoMTA Plus (Avalon Biomed Inc, Bradenton, FL), and Endosequence BC RRM-Fast Set Putty (BC RRM-FS; Brasseler USA, Savannah, GA) after orthograde placement in roots with open apices. Methods Palatal roots of maxillary molars were instrumented to create divergent open apices and divided into 4 groups for orthograde obturation: ProRoot MTA, NeoMTA Plus, BC RRM-FS, and BC RRM-FS + BC Sealer. Using a scanning electron microscope, the quality of material adaptation at the anatomic apex was evaluated by 5 blinded examiners; 3 mm of the root end was sectioned, and gap distance was measured at the material-dentin interface. Statistical analyses were performed using the Kruskal-Wallis test. Results There were no significant differences in marginal adaptation among the 4 groups at the level of the anatomic apex ( P  = .175). BC RRM-FS + BC Sealer had a significantly smaller gap size after 3-mm root end resection compared with the other 3 groups ( P  < .01). No differences were observed among the other 3 materials. Conclusions All materials showed comparable marginal adaptation at the anatomic apex when used for orthograde obturation of open apices. Application of BC Sealer before the delivery of BC RRM-FS Putty enhanced the quality of adaptation coronal to the apex.