Prevalence of Root Fusions and Main Root Canal Merging in Human Upper and Lower Molars: A Cone-beam Computed Tomography In Vivo Study

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

“…, Martins et al . ) only analysed molars with fused roots and only root canal merging. The purpose of those investigations (Zhang et al .…”

“…, Martins et al . ) was to understand if there was any relationship between root canals (of fused roots) that usually are present on separated roots. Both studies reported a high incidence of root canal merging in the apical area, but merging did occur at all levels of the root canal.…”

“…() (using micro‐computed tomography [micro‐CT]) and Martins et al . () (using cone‐beam computed tomography [CBCT]); however, these studies only presented information for teeth with fused roots. No information is available for nonfused roots or for the main position where root canals split.…”

Morphological evaluation of maxillary second molars with fused roots: a micro‐CT study

“…In addition, the prevalence of fused roots in maxillary second molars is four times higher when compared to maxillary first molars (Martins et al . ).…”

“…, Martins et al . ). The micro‐computed tomography (micro‐CT) imaging system is currently considered the gold standard for the study of root canal anatomy as it provides reproducible and detailed information regarding the two‐ and three‐dimensional aspects of the teeth (Ordinola‐Zapata et al .…”