TY - JOUR
T1 - THE ROOT CANAL MORPHOLOGY OF PREMOLARS IN A SAMPLE OF THE LEBANESE POPULATION
T2 - CLINICAL CONSIDERATIONS
AU - Merhej, Marie Jose
AU - El Hachem, Roula
AU - Sacre, Hala
AU - Salameh, Pascale
AU - Ghosn, Nabil
AU - Naaman, Alfred
N1 - Publisher Copyright:
© 2023, Saint Joseph University of Beirut, Faculty of Dental Medicine. All rights reserved.
PY - 2023
Y1 - 2023
N2 - Objectives: The aim of this study was to investigate the root anatomy of the maxillary and mandibular premolars among a sample of the Lebanese population and to explore their incidence by sex and the symmetry between the left and right sides. Materials and Methods: This retrospective analysis of 250 cone-beam computed tomography (CBCT) scans consisted of 960 maxillary and 972 mandibular premolars. Roots, canals, and morphology types were recorded. Vertucci’s classification was used to categorize the canal morphologies. Fisher’s exact and chi-square tests were applied (P≤.05). Results: The majority of maxillary first premolars had two roots (85.3%) with two canals (91.3%). Most of the maxillary second premolars showed one root (79.8%). Two-root canals (53.55%) were more common than one canal (44.2%). The three-root, three-canal morphology was rarely spotted in the maxillary first (0.4%) and second premolars (2.3%). The one-root (99.2%) and one-canal (84.5%) morphologies were most frequently located in the mandibular first and second premolars (100%, 88.6%), and two canals being less common (15.5%, 11.4%) correct same as before. The total prevalence of premolars with a complex root canal morphology was 62.4%, found in types II, III, and V to VIII. Men had significantly more roots and root canals in their maxillary first premolars than women (P≤.05). No significant differences were observed between the contralateral premo-lars (P>.05). Conclusions: Premolars displayed wide variations in root and root canal morphology and symmetry between the contralateral premolars.
AB - Objectives: The aim of this study was to investigate the root anatomy of the maxillary and mandibular premolars among a sample of the Lebanese population and to explore their incidence by sex and the symmetry between the left and right sides. Materials and Methods: This retrospective analysis of 250 cone-beam computed tomography (CBCT) scans consisted of 960 maxillary and 972 mandibular premolars. Roots, canals, and morphology types were recorded. Vertucci’s classification was used to categorize the canal morphologies. Fisher’s exact and chi-square tests were applied (P≤.05). Results: The majority of maxillary first premolars had two roots (85.3%) with two canals (91.3%). Most of the maxillary second premolars showed one root (79.8%). Two-root canals (53.55%) were more common than one canal (44.2%). The three-root, three-canal morphology was rarely spotted in the maxillary first (0.4%) and second premolars (2.3%). The one-root (99.2%) and one-canal (84.5%) morphologies were most frequently located in the mandibular first and second premolars (100%, 88.6%), and two canals being less common (15.5%, 11.4%) correct same as before. The total prevalence of premolars with a complex root canal morphology was 62.4%, found in types II, III, and V to VIII. Men had significantly more roots and root canals in their maxillary first premolars than women (P≤.05). No significant differences were observed between the contralateral premo-lars (P>.05). Conclusions: Premolars displayed wide variations in root and root canal morphology and symmetry between the contralateral premolars.
KW - and symmetry
KW - cone-beam computed tomography (CBCT)
KW - mandibular premolars
KW - maxillary premo-lars
KW - root canal anatomy
KW - root canal configuration
KW - sex distribution
UR - http://www.scopus.com/inward/record.url?scp=85159719530&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:85159719530
SN - 2218-0885
VL - 14
SP - 37
EP - 46
JO - International Arab Journal of Dentistry
JF - International Arab Journal of Dentistry
IS - 1
ER -