Incidence of three roots and/or four root canals in the permanent mandibular first molars in a tunisian sub-population: a radiographic CT study
Objectives: The purpose of this study was to evaluate the prevalence of three-rooted permanent mandibular first molars (PMFMs) with four canals and their morphological characteristics among a tunisian sub-population from using computed tomography scans (CTs). Methods: Among the 160 CTs screened, 148 patients (aged between 10 and 78 years) possessing at least one PMFM were identified. A total of 259 PMFMs were evaluated in axial section series and with multiplanar reconstructions to determine the number of roots and canals. The incidence of three-rooted PMFMs was compared with regard to gender. Results: Among the 148 CTs of 92 females and 56 males, 1 female and 3 males were found to have at least one three-rooted PMFM. Among the 259 PMFMs, 4 PMFMs (1.54 %, 2 of 132 left and 2 of 127 right) were found to have three roots. The prevalence of distal root(s) with two canals was 85.33 % (221 of 259). Conclusions: The occurrence of three-rooted PMFMs among a tunisian sub-population was 1.54 % and was inferior than other countries and ethnicities. Understanding the prevalence of PMFMs with a distolingual root and/or canal in a Tunisian population may be useful for successful endodontic treatments.
Tunisian Section Meeting
2019 Tunisian Section Meeting (Monastir, Tunisia) Monastir, Tunisia
2019
Diagnostic Sciences
Gharbi, Manel
( dental medicine faculty of Monastir
, Monastir
, Monastir
, Tunisia
; Clinic of dental medicine
, Monastir
, Tunisia
)
Chaabani, Imen
( Faculty of Dental Medicine
, Monastir
, Monastir
, Tunisia
; Clinic of dental medicine
, Monastir
, Tunisia
)
Chebbi, Ameni
( Clinic of dental medicine
, Monastir
, Tunisia
)
Kammoun, Rim
( Clinic of dental medicine
, Monastir
, Tunisia
)
Ben Alaya, Touhami
( Clinic of dental medicine
, Monastir
, Tunisia
; dental medicine faculty of Monastir
, Monastir
, Monastir
, Tunisia
)