J Korean Acad Pediatr Dent.  2018 Feb;45(1):57-64. 10.5933/JKAPD.2018.45.1.57.

Relationship between Pre-Eruptive Buccal Pit Radiolucency and Restoration in Mandibular First Molar

• Jung SH
• Song JS
• Shin TJ
• Hyun HK
• Kim YJ
• Kim JW
• Lee SH
• Jang KT

• KMID: 2430315
• DOI: http://doi.org/10.5933/JKAPD.2018.45.1.57

Abstract

Pre-eruptive intracoronal resorption (PEIR) is a developmental defect in the crown of a pre-eruptive tooth. The purpose of this study was to investigate the relationship between the size of the pre-eruptive buccal pit radiolucency, which is suspected as PEIR on a panoramic radiography, and the need for restoration after the eruption of a mandibular first molar. The experimental group included 35 mandibular first molars, in which lesions requiring definite restoration were observed during eruption. The control group consisted of 64 sound mandibular first molars after eruption. The sex, age, tooth position, tooth formation stage, size of the pre-eruptive buccal pit radiolucency, and restoration methods in the experimental group and control group were examined. Compared with the control group, the experimental group showed a statistically significant difference in the size of the buccal pit before eruption. The buccal pit size for predicting the need for restoration was further examined by receiver operating characteristic curve analyses, and the area under the curve was 0.813 ± 0.047. If radiolucency is observed at the buccal pit of the mandibular first molar before eruption, periodic observations and post-eruption examinations are required.

Keyword

Pre-eruptive intracoronal resorption; Mandibular first molar

MeSH Terms

Crowns
Molar*
Radiography, Panoramic
ROC Curve
Tooth