2026-04-18T00:23:47Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/1164072025-12-05T12:24:44Zcom_2072_1057col_2072_478916col_2072_478917col_2072_478927

00925njm 22002777a 4500 dc Marques, José author Montserrat Bosch, Marta author Barbosa de Figueiredo, Rui Pedro author Vílchez Pérez, Miguel-Ángel author Valmaseda Castellón, Eduardo author Gay Escoda, Cosme author 2017-10-10T09:29:52Z 2017-10-10T09:29:52Z 2017-06-01 2017-10-10T09:29:52Z Background: The objective of this study was to evaluate the association between the presence of mandibular third molars and the occurrence of carious lesions in the distal aspect of the mandibular second molar. Material and Methods: A retrospective cohort study comprising 327 lower third molars extracted in the Oral Surgery and Implantology Master's Degree program of the School of Dentistry of the University of Barcelona (Barcelona, Spain) was carried out. A descriptive and bivariate analysis was made. The diagnosis of caries in the second molar and the position of the mandibular third molar were evaluated through panoramic radiographies. Results: The sample included 203 patients, 94 males (46.3%) and 109 females (53.7%), with a mean age of 26,8 years and 327 lower third molars. The prevalence of second molar distal caries was 25.4% (95% CI= 20.6% to 30.2%). This pathology was significantly more frequent when the third molar was in a horizontal position (27.7%), when the contact point was at (45,8%) or below (47.0%) the cementoenamel junction (CEJ), and when the distal CEJ of the mandibular second molar and the mesial CEJ of the third molar was 7 to 12 mm apart. Conclusions: Horizontal lower third molars with contact points at or below the CEJ are more likely to produce distal caries in the mandibular second molars. Due to the high prevalence of this pathology (20.6% to 30.2%), a prophylactic removal of lower third molars with the above-mentioned features might be advisable. Dent molar Odontologia Extracció dental Cirurgia oral Càries dental Molar Dentistry Teeth extraction Oral surgery Dental caries Impacted lower third molars and distal caries in the mandibular second molar. Is prophylactic removal of lower third molars justified?