Anatomic crown width/length ratios of unworn and worn maxillary teeth in white subjects.
The root canal system is divided into two parts: the pulp chamber, located in the
anatomic crown of the tooth, and the root canal, found in the anatomic root of the tooth.6
The maximum mesiodistal width (perpendicular to the longitudinal axis of the tooth) and the maximum crown-root length, (parallel to the longitudinal axis of the tooth and between the most apical point of the gingival margin and the most incisal point of the
anatomic crown) of the maxillary central incisors, lateral incisors, and canines was recorded for each tooth.
Anatomic crown width/ length ratios of unworn and worn maxillary teeth in white subjects.
In these situations lip line, gingi- val line and
anatomic crown length are important factors for esthetic results.8 A high smile line can be an obstacle to achieving an esthetic outcome.
In experimental groups (C, Z and T) the
anatomic crowns of the teeth were sectioned perpendicular to the long axis, and the root canals were prepared for the posts.
