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Year : 2014  |  Volume : 2  |  Issue : 2  |  Page : 48-52

Prevalence of pulp exposures during tooth preparation for fixed prosthetics

1 Department of Prosthodontics, Faculty of Dentistry, Erciyes University, Kayseri, Turkey
2 Department of Endodontics, Faculty of Dentistry, Erciyes University, Kayseri, Turkey

Correspondence Address:
Hasan Onder Gumus
Department of Prosthodontics, Faculty of Dentistry, Erciyes University, Kayseri 38039
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2347-4610.131977

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Purpose: The purpose of this study was to record the prevalence of pulp exposures occurring during preparation of vital abutment teeth. Materials and Methods: 2527 patients (1495 female, 1032 male) who received metal-ceramic fixed partial dentures or single crowns were included in the study. Teeth were prepared using diamond burs in a high speed hand piece under air and water coolant. If pulpal exposure occurred, data of the patient's gender and age, tooth number, tooth position (normal vs malpositioned) and exposure time were recorded, and the patients were referred for immediate endodontic treatment. Data were analyzed using Chi-square test, with a confidence level set at 95% (P < 0.05). Results: Pulpal exposure occurred in 80 teeth (0.66%), Chi-square demonstrated no difference (P > 0.05) male-female exposure ratio (1:1.5). The difference in exposure between maxillary and mandibular teeth was statistically significant (P < 0.05). Only 28.75% of exposed tooth was malposed. The majority (n = 49, 61.25%) of exposures occurred in mandibular teeth and this was statistically significant (P < 0.05). Overall the most frequently exposed tooth was mandibular canine (20%), followed by the maxillary central incisor (13.75%) and mandibular lateral incisor (10%). Conclusions: Clinicians should undertake greater care in preparing teeth, especially mandibular canines, for fixed prosthetics. The majority (62.5%) of patients in which pulpal exposure occurred during tooth preparation were between 30-50 years old.

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