Evaluation of root and canal morphology of maxillary permanent first molars in an Emirati population; a cone-beam computed tomography study

Abstract

Background The aim of this study was to analyze the root and canal morphology of the maxillary permanent first molars in an Emirati population using cone-beam computed tomography (CBCT). Methods Two hundred and sixty-one CBCT scans were acquired. The data were extracted and anonymized to remove all patient identifiers. Two observers (an endodontic resident and an endodontist) evaluated all scans on diagnostic quality monitors. Results The prevalence of a second mesiobuccal canal (MB2) was 80.1% in all examined samples. Type II Vertucci classification, was the most common canal configuration (59%) in the mesiobuccal root, followed by Types I (19.9%) and IV (15.3%), while Type III was the least common (5.7%). Types I, II, and IV were significantly more common in the 21–40-year age group (P < 0.001), while Type III was observed significantly more often in the < 20-year age group (P < 0.001). No significant effect of gender on the prevalence of Vertucci classification in the mesiobuccal root of maxillary first molars (P = 0.74) was found. Analysis of bilateral symmetry showed that 80% teeth had perfect bilateral symmetry, whereas 20% were asymmetrical. Type II canal configuration showed the highest prevalence of bilateral symmetry (48.7%), followed by Type I (15%) and Type IV (10%), while Type III showed the least prevalence of symmetry (3%). Conclusions This was the first study to analyze the prevalence of MB2 canal in an Emirati population. Our results indicate high prevalence of MB2 (80.1%) and emphasize the importance of using advanced techniques to locate the MB2 canal.

Evaluation of Root Anatomy and Canal Configuration of Human Permanent Maxillary First Molar Using Cone-Beam Computed Tomography: A Systematic Review

“…Sixteen studies were excluded after full text screening. Thus, a total of 35 studies that met our inclusion criteria were processed for data extraction [ 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 ] ( Figure 1 ).…”

“…In total, 35 studies presented data on the canal configuration of maxillary first molars based on the Vertucci classification [ 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 ]. The concurred data for most of these studies included both the percentage of occurrence and the number of cases.…”

The C-shaped root canal systems in mandibular second molars in an Emirati population

“…Thus, the clinicians treating this population should pay special attention in managing the mesial root of non-C-shaped mandibular second molar. Modifications of cleaning and shaping technique, maybe considered to prevent tearing the common apical foramen and avoid stripping, ledging and instrument fracture 26 . Moreover, the second most common canal configuration in the mesial root is Type III VC.…”

Evaluation of root canal morphology in permanent maxillary and mandibular anterior teeth in Saudi subpopulation using two classification systems: a CBCT study

“…Practitioners today are savvy about the conventional canal anatomy of teeth. Although the obturation and filling of the other canals are perfect, adequate knowledge of root and root canal morphological characteristics and possible variations is required to achieve perfect endodontic treatment and overcome treatment failure [ 1 – 3 ]. The permanent mandibular anterior teeth have reported extra roots or root canal variations compared with the maxillary anteriors.…”