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ORIGINAL RESEARCH
Year : 2014  |  Volume : 5  |  Issue : 1  |  Page : 21-24

Prevalence of cervical enamel projection in human molars


1 Department of Endodontics, State University of Amazonas, Manaus, Amazonas, Brazil
2 Department of Endodontics, Federal University of Amazonas, Manaus, Amazonas, Brazil
3 Department of Dental Materials and Prosthodontics, Ribeirão Preto School of Dentistry, University of São Paulo, Ribeirão Preto, São Paulo, Brazil

Correspondence Address:
Lucas da Fonseca Roberti Garcia
Rua Siró Kaku, n°72, apto. 73, Bairro Jardim Botânico, CEP-14021-614, Ribeirão Preto, São Paulo
Brazil
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/2155-8213.128109

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Introduction : One of the developmental anomalies of dental enamel is cervical enamel projection (CEP). The aim of this study was to assess the prevalence of CEP in maxillary and mandibular human teeth. Materials and Methods: A total of 234 human molars obtained from the tooth bank of the State University of Amazonas were used in the present study. CEP was classified as Grade 0 (absence of projection), Grade I (discrete extension of cementoenamel junction toward the furcation), Grade II (closer to furcation without invasion), and Grade III (extending to the furcation area). The evaluation was performed using macroscopic inspection of teeth faces (buccal, lingual/palatal, mesial, and distal) with at least one-third of the crown on each face. Results: It was found that 17.1% of the teeth evaluated had CEP, but neither of the projections occurred on the proximal faces. Higher prevalence of CEP was found on the buccal faces and the most commonly grade of CEP found was Grade I (10.3%). Conclusions: It may be concluded that CEP occurs more frequently in mandibular molars and its diagnosis is extremely important since these projections may difficult bacterial plaque removal, leading to an inflammatory process and unnecessary endodontic treatment.


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