Morphology of Mandibular First Molars Analyzed by Cone-beam Computed Tomography in a Korean Population: Variations in the Number of Roots and Canals

Root and root canal morphology of the permanent dentition in a Caucasian population: a cone‐beam computed tomography study

“…This result was in line with other studies from India (Felsypremila et al 2015), Italy (Plotino et al 2013), Chile (Torres et al 2015) and Belgium (Torres et al 2015). However, this was a higher prevalence when compared to individuals from Korea (Kim et al 2013) and China (Zhang et al 2011a), where three roots were present in 25.85% and 29% of cases, respectively. The mandibular second molar had a single root in 14.2% of the cases, which is lower ratio when compared to data from Korea (41%; Kim et al 2016) or China (22%; Zhang et al 2011a).…”

“…In the present study, the mandibular central and lateral incisors had a prevalence of Vertucci Type I configurations of 72.3% and 69.9%, respectively, which represents a higher ratio when compared with the results from Turkey (Arslan et al 2015), with 51.9% and 52.8%, respectively, or Brazil (Estrela et al 2015a) with 65% and 58%, respectively. The most common root canal configurations in the mesial root of mandibular first molars appear to be Vertucci Types II and IV (Zhang et al 2011a, Kim et al 2013 and the present study) or Type III (Torres et al 2015). The mandibular first molar had two roots in 97.1% of the cases.…”

“…However, this was a higher prevalence when compared to individuals from Korea (Kim et al . ) and China (Zhang et al . ), where three roots were present in 25.85% and 29% of cases, respectively.…”

Frequency of Root Canal Isthmi in Human Permanent Teeth Determined by Cone-beam Computed Tomography

“…Numerous methods have been used to evaluate RCIs: periapical radiography, vertical and transversal sectioning, clearing and staining, stereomicroscopy, surgical microscopy, dissecting microscopy, plastic casting, scanning electronic microscopy, CBCT, and MCT (4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(24)(25)(26)(27). CBCT images provide a satisfactory visualization of RCIs, and their use in association with a longitudinal map-reading strategy to identify isthmi seems to yield satisfactory results.…”

A proposal for using contralateral teeth to provide well‐balanced experimental groups for endodontic studies

“…In addition, a number of studies have already used contralateral teeth as experimental and control groups (Albrecht et al 2004, Zehnder et al 2006, Mitchell et al 2010, 2011. However, several morphological studies , Tian et al 2012, Kim et al 2013, Plotino et al 2013 have reported that even contralateral teeth are not exactly the same. This implies that cursory screening of contralateral teeth is not sufficient for endodontic studies that require exact matching of canal systems.…”