The prevalence of radix molaris in the mandibular first molars of a Saudi subpopulation based on cone-beam computed tomography
Year: 2019
Type: article
Study design: Observational Study
Abstract: Objectives: The purpose of this study was to determine the incidence of radix molaris (RM) (entomolaris and paramolaris) in the mandibular first permanent molars of a sample Saudi Arabian subpopulation using cone-beam computed tomography (CBCT).Materials and Methods: A total of 884 CBCT images of 427 male and 457 female Saudi citizens (age 16 to 70 years) were collected from the radiology department archives of 4 dental centers.A total of 450 CBCT images of 741 mature mandibular first molars that met the inclusion criteria were reviewed.The images were viewed at high resolution by 3 examiners and were analyzed with Planmeca Romexis software (version 5.2).Results: Thirty-three (4.5%) mandibular first permanent molars had RM, mostly on the distal side.The incidence of radix entomolaris (EM) was 4.3%, while that of radix paramolaris was 0.3%.The RM roots had one canal and occurred more unilaterally.No significant difference in root configuration was found between males and females (p > 0.05).Types I and III EM root canal configurations were most common, while type B was the only RP configuration observed.Conclusions: The incidence of RM in the mandibular first molars of this Saudi subpopulation was 4.5%.Identification of the supernumerary root can avoid missing the canal associated with the root during root canal treatment.
Authors: Hassan AL-Alawi, Saad Al-Nazhan, Nassr Al-Maflehi, Mazen A. Aldosimani, Mohammed Nabil Zahid, Ghadeer N. Shihabi
Language: English
Subfield: Oral Surgery
Field: Dentistry
Domain: Health Sciences
Open Access status: diamond
OpenAlex ID: W2990765723