Examinando por Materia "Second molars"

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(Universidad Privada Norbert Wiener, 2018-08-20) Martinez Izo, Vanessa Liliana; Vilchez Bellido, Dina
The objective of this study was to determine the frequency of dental caries on the distal side of second molars adjacent to third molars in panoramic radiographs from a private dental clinic in the Surco district of Lima in 2016. This was a descriptive, observational, retrospective, and cross-sectional study. The sample consisted of 116 panoramic radiographs showing 176 lower third molars. The variables considered were dental caries on the distal side of the mandibular second molar, the angulation of the lower third molar (Shiller Classification), the impaction level of the lower third molar (Pell and Gregory Classification), and the distances between the cement-enamel junction of the distal second mandibular molar and the mesial third mandibular molar (Leone Classification), along with age and sex. Frequency analysis was performed. Results: The frequency of distal caries on the second molar adjacent to the lower third molar was 41%. This frequency was higher in males (24%) and in the age range of 20 to 29 years (18%). Distal caries on second molars occurred more frequently adjacent to lower third molars with a mesial angulation between 51° and 73° (11%), a level C impaction (16%), and when the distance between the cement-enamel junction of the distal second molar and the mesial of the lower third molar was between 8 and 10 mm (23%). A higher frequency of second molars adjacent to the lower third molar had no dental caries.