Correlation between clinical parameters of crown and gingival morphology of anterior teeth and periodontal biotypes.

Background: In this study, we conducted a quantitative analysis of the clinical parameters of crown and gingival morphology (CGM) of the maxillary anterior teeth (MAT). We also analyzed the correlation of these parameters with periodontal biotype (PB), with a view to providing objective standards for PB diagnosis.

Methods: The three-dimensional (3D) maxillary digital models of 56 individuals were obtained using an intra-oral scanner.

A quantitative research on clinical parameters of gingival contour for anterior teeth esthetic analysis and design.

Objectives: To provide reference for computer-aided esthetic analysis and design of the maxillary anterior teeth.

Materials And Methods: Intraoral scanner was used to obtain the maxillary three-dimensional digital models of subjects with healthy periodontal tissue. In SpaceClaim, the occlusal plane was established as the horizontal reference plane to measure the positional relation between the gingival zenith (GZ) of the maxillary anterior teeth, the angle formed between the gingival line and the maxillary midline (GLA), the distance between the GZ of the lateral incisor and gingival line (LID), and the distance between the GZ and the vertical bisected middle surface along the long axis of the clinical crown (VBMS).