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Human Pulp Response to Direct Pulp Capping and Miniature Pulpotomy With Mta After Application of Topical Dexamethasone: A Randomized Clinical Trial Publisher



Mousavi SA1 ; Ghoddusi J2 ; Mohtasham N3 ; Shahnaseri S4 ; Paymanpour P5 ; Kinoshita JI6
Authors
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Authors Affiliations
  1. 1. Dental Research Center, Dental School, Mashhad University of Medical Sciences, Mashhad, Iran
  2. 2. Torabinejad Dental Research Center, Department of Endodontics, Dental School, Isfahan University of Medical Sciences, Isfahan, Iran
  3. 3. Department of Oral Pathology, Dental School, Mashhad University of Medical Sciences, Mashhad, Iran
  4. 4. Dental Implant Research Center, Department of Oral and Maxillofacial Surgery, Dental School, Isfahan University of Medical Sciences, Isfahan, Iran
  5. 5. Department of Endodontics, Dental School, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  6. 6. Department of Conservative Dentistry, Showa University Dental Hospital, Tokyo, Japan

Source: Iranian Endodontic Journal Published:2016


Abstract

Introduction: The aim of this randomized clinical trial was to compare the histologic pulp tissue response to one-step direct pulp capping (DPC) and miniature pulpotomy (MP) with mineral trioxide aggregate (MTA) after application of dexamethasone in healthy human premolars. Methods and Materials: Forty intact premolars from 10 orthodontic patients, were randomly chosen for DPC (n=20) or MP (n=20). In 10 teeth from each group, after exposure of the buccal pulp horn, topical dexamethasone was applied over the pulp. In all teeth the exposed/miniaturely resected pulp tissue was covered with MTA and cavities were restored with glass ionomer. Teeth vitality was evaluated during the next 7, 21, 42, and 60 days. Signs and/or symptoms of irreversible pulpitis or pulp necrosis were considered as failure. According to the orthodontic schedule, after 60 days the teeth were extracted and submitted for histological examination. The Kruskal-Wallis and Fisher’s exact tests were used for statistical analysis of the data (P=0.05). Results: Although dexamethasone specimens showed less inflammation, calcified bridge, pulpal blood vasculature, collagen fibers and granulation tissue formation were not significantly different between the groups (P>0.05). Conclusion: Topical dexamethasone did not hindered pulp healing but reduced the amount of underlying pulpal tissue inflammation after DPC and MP in healthy human premolars. © 2016, Iranian Association of Endodontics. All Rights Reserved.
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