Printing and mounting digital casts in the centric relation position for use on an analog articulator: A dental technique.

A technique for recording, printing, and mounting digital casts in centric relation is described. Combining elements of analog and digital workflows, centric relation records can be transferred by digital scanning and used to align casts for articulation. This method is useful to the clinician adapting to digital workflow or preferring a physical semiadjustable articulator in conjunction with digital scans.

Proposed shade guide for human facial skin and lip: a pilot study.

Statement Of Problem: Currently, no commercially available facial shade guide exists in the United States for the fabrication of facial prostheses.

Purpose: The purpose of this study was to measure facial skin and lip color in a human population sample stratified by age, gender, and race. Clustering analysis was used to determine optimal color coordinates for a proposed facial shade guide.

Incisal translucency of vital natural unrestored teeth: a clinical study.

Introduction: Understanding the distribution of incisal translucency will provide clinicians a guide to use this knowledge to improve the esthetic replication of anterior restorations. The aim of this study is to investigate the distribution of incisal translucency of unrestored vital natural maxillary central, lateral, and canine vital teeth from a stratified population in different age, gender, and race.

Materials And Methods: A total of 120 subjects were recruited for this study.

Coverage error of gingival shade guide systems in measuring color of attached anterior gingiva.

Statement Of Problem: It remains unclear which gingival shade guide is most effective in producing the best visual shade match.

Purpose: The purpose of this study was to determine and compare the coverage errors (CEs) of 2 different gingival shade guides and their combination in a selected population.

Material And Methods: The CEs of the following gingival shade guides were evaluated: (1) Lucitone 199, (2) IPS Gingiva, and (3) a combination of the 2 shade guide systems.

Estimating the color of maxillary central incisors based on age and gender.

Statement Of Problem: There is no scientific information regarding the selection of the color of teeth for edentulous patients.

Purpose: The purpose of this study was to evaluate linear regression models that may be used to predict color parameters for central incisors of edentulous patients based on some characteristics of dentate subjects.

Material And Methods: A spectroradiometer and an external light source were set in a noncontacting 45/0 degree (45-degree illumination and 0-degree observer) optical configuration to measure the color of subjects' vital craniofacial structures (maxillary central incisor, attached gingiva, and facial skin).

Measurement of color for craniofacial structures using a 45/0-degree optical configuration.

Statement Of Problem: The color of vital craniofacial structures has not been measured accurately.

Purpose: The purpose of this study was to determine the color of vital craniofacial structures and evaluate the validity and test-retest reliability of a noncontacting 45/0-degree optical configuration.

Material And Methods: A spectroradiometer and an external light source were configured in a noncontacting 45/0-degree (45-degree illumination and 0-degree observer) optical configuration to measure the color of subjects' vital craniofacial structures (central and lateral incisor and canine, attached gingiva, lips, and facial skin).