Evaluation of the Root Canal Anatomy of Maxillary and Mandibular Premolars in a Selected German Population Using Cone-beam Computed Tomographic Data

Differences on the Root and Root Canal Morphologies between Asian and White Ethnic Groups Analyzed by Cone-beam Computed Tomography

“…Previous studies reported a Vertucci type I prevalence of 14.3% in China (33), 25.1% in Spain (15), 13.9% in France (22), 6.0% in Brazil (21), and 3.9% in Germany (34) and reported 45.4% in China (35), 66.7% in France (22), 39.3% in Spain (15), 25.0% in Brazil (21), and 14.3% in Germany (34) for maxillary first and second premolars, respectively. Regarding mandibular premolars, the Asian group presented a higher prevalence of Vertucci type I configuration, a finding basically in accordance with previous studies that showed an equal or higher prevalence of the type I configuration in Chinese studies (20,(36)(37)(38) compared with predominantly white countries such as France, Brazil, Spain, and Germany (21,22,34,39).…”

A study of the symmetry of roots and root canal morphology in mandibular anterior teeth using cone-beam computed tomographic imaging in a Polish population

“…Using this approach, tooth anatomy can be simultaneously or separately observed from different angles by reconstructing 3D images, and the characteristics of a tooth can be both qualitatively and quantitatively assessed. CBCT images of teeth can reveal their anatomy in sagittal and horizontal sections [4,6,12,13,18,20]. Analyses of the number of roots in mandibular anterior teeth have reported results in different populations: in India, Verma et al [30] found that 100% of incisors had a single root; in Iran, Aminsobhani et al [4] found that all incisors and 96.3% of canines had 1 root; Martins et al [20] showed that 100% of incisors had a single root, while 2.8% of canines had 2 roots; and in China, by Zhengyan et al [36] showed that central incisors had a single root (100%), while lateral incisors and canines had two roots in 0.3% and 0.8% of cases, respectively.…”

Root and canal morphology of maxillary premolar teeth in an Egyptian subpopulation using two classification systems: a cone beam computed tomography study

“…) and German (Burklein et al . ) populations have been reported as double‐rooted. On the contrary, a higher prevalence of single‐rooted morphology in maxillary first premolars was found in Chinese (Walker ) and Brazilian (Pécora et al .…”

“…, Atieh , Ahmed & Cheung , Burklein et al . ), which may reach up to more than 9% (Lipski et al . ).…”

“…, Ahmed & Cheung , Burklein et al . ). Such anatomical variations pose a challenge to the clinician during root canal treatment.…”