TY - JOUR ID - 11579 TI - In-vitro Sealing Ability of Calcium Enriched Mixture Cement Versus Amalgam as Retrograde Filling Materials JO - Journal of Dental Materials and Techniques JA - JDMT LA - en SN - 2322-4150 AU - Sadeghi, Shiva AU - Khoshdel, Masoomeh AD - Associate professor, Dental Sciences Research center, Dept. of Endodontics, Faculty of Dentistry, Guilan University of Medical Sciences, Rasht, Iran AD - Postgraduate of Pediatric Dentistry, Department of Pediatric Dentistry, Dental School, Qazvin University of Medical Sciences, Qazvin, Iran Y1 - 2018 PY - 2018 VL - 7 IS - 4 SP - 152 EP - 155 KW - Sealing ability KW - Amalgam KW - CEM KW - Retrofilled DO - 10.22038/jdmt.2018.11579 N2 - Introduction: Sealing ability of a retrograde filling material is an important factor for a successful endodontic apicoectomy. The purpose of this in-vitro study was to compare the sealing ability of calcium enriched mixture (CEM) cement versus amalgam as root-end filling materials. Methods: A total of 36 canals of extracted maxillary central incisors were instrumented and obturated using lateral compaction technique. The apical 3 mm of each root was resected and root-end prepared to a depth of 3mm.The teeth were randomly divided into two experimental groups of 15 teeth according to tested materials (Amalgam, CEM cement) and two negative and positive control groups of 3 teeth. Root- end cavities were restored with amalgam (group 1) or CEM (group 2). Sealing ability was evaluated by dye penetration method using Pelikan ink, and a stereomicroscope at x10 magnifications and 0.01 mm accuracy. Data were analyzed by T-test and PResults: The mean linear dye microleakage for CEM cement and amalgam retrofilled groups were 2.08 and 3.77 mm, respectively. There was a statistically significant difference between the two groups (p<0.0001). Conclusion:  under the condition of this in vitro study, CEM cement provides a better seal than amalgam when used as a retrograde filling material.        UR - https://jdmt.mums.ac.ir/article_11579.html L1 - https://jdmt.mums.ac.ir/article_11579_d4b6814697dd243bc065f34db837b681.pdf ER -