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Year : 2019  |  Volume : 9  |  Issue : 5  |  Page : 492-498

Effect of distinctive moisture conditions on push-out bond strength of three root canal sealers––An in-vitro study

1 Department of Conservative Dentistry and Endodontics, MM College of Dental Sciences & Research, MM (Deemed to be University), Ambala, India
2 Department of Oral & Maxillofacial Surgery, MM College of Dental Sciences & Research, MM (Deemed to be University), Ambala, India
3 Department of Conservative Dentistry and Endodontics, Swami Devi Dayal College of Dental Sciences, Panchkula, India

Correspondence Address:
Dr. Ishita Kapur
H.No 62, Adarsh Nagar, Model Town, Ambala City, Distt. Ambala, Haryana, Pincode: 134003.
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jispcd.JISPCD_240_19

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Objective: Endodontic sealer should adhere to both dentin and the core filling material but the moisture conditions of the canals affect the adhesive properties of the sealer. An ideal sealer with perfect moisture conditions will lead to greater strength of the restored tooth, which may provide greater resistance to tooth fracture and clinical longevity of an endodontically treated tooth. The aim of this study was to evaluate the effect of moisture conditions on the push-out bond strength of three root canal sealers: AH Plus® (Dentsply-Tulsa Dental, Tulsa, OK), Epiphany (Pentron Clinical Technologies, Wallingford, CT), and GuttaFlow (Coltene/Whaledent, Altstatten, Switzerland). Materials and Methods: A total of 120 single-rooted, non-carious teeth were collected for the study and were stored in normal saline. The root canals were prepared using step-back technique. Teeth were divided into four groups based on type of drying procedure used and further subdivided into three subgroups based on the type of sealer used. The samples were cut horizontally to produce slices and then tested for push-out bond strength using Universal Testing Machine (Servo Series 50kN; P S I Sales Private Limited, New Delhi, India). The specimens were examined for mode of fracture under magnification and the results were analyzed statistically. Results: Distinctive moisture conditions for all sealers were observed and the highest strength of AH Plus® was evaluated under moist condition, Epiphany under dry condition, and GuttaFlow under normal condition, respectively. Conclusion: Distinctive moisture conditions affect the push-out bond strength of the sealers.

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