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Comparison of pulp response to mineral trioxide aggregate and a bioceramic paste in partial pulpotomy of sound human premolars: a randomized controlled trial
Author(s) -
Azimi S.,
Fazlyab M.,
Sadri D.,
Saghiri M. A.,
Khosravanifard B.,
Asgary S.
Publication year - 2014
Publication title -
international endodontic journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.988
H-Index - 119
eISSN - 1365-2591
pISSN - 0143-2885
DOI - 10.1111/iej.12231
Subject(s) - mineral trioxide aggregate , pulpotomy , dentistry , pulp (tooth) , pulp capping , medicine , bridge (graph theory) , surgery
Aim This randomized clinical trial evaluated clinical sign/symptoms as well as histological pulp reactions in terms of inflammation and mineralized bridge formation after partial pulpotomy of sound human premolars and placement of a bioceramic p aste ( iR oot BP ) or tooth‐colored P ro R oot MTA as pulp‐covering biomaterials. Methodology Twenty‐four human sound premolars were randomly allocated into two experimental groups ( n = 12) treated either with iR oot BP or MTA subsequent to partial pulpotomy. Six weeks after treatment, clinical sign/symptoms and radiographic changes were evaluated. The teeth were then extracted and examined histologically for inflammatory status of the pulp, formation of hard tissue bridge and appearance of the bridge. In terms of pulp inflammation and dentinal bridge formation, the Mann–Whitney U, and for clinical signs, the chi‐square test was used (α = 0.05). Results In terms of pulp inflammation, formation of hard tissue bridge and its appearance, the differences between the two experimental groups were not significant. However, clinical sensitivity to cold was significantly less for teeth treated with MTA ( P < 0.05). All cases had formed a hard tissue bridge, and none of the specimens in either group had pulpal necrosis. Conclusion When treating teeth with healthy pulps, the response to partial pulpotomy treatment with both MTA and iR oot BP was favourable. However, pulps covered with iR oot BP were more sensitive to cold stimuli.