Distortion Assessment of Different Materials in Full-Arch Dentate Impressions in Relation to Operator Experience: A Comparative In Vivo Study.

Purpose: To evaluate the distortion probability in impressions of completely dentate arches when different impression materials are used in relation to operator experience.

Materials And Methods: A total of 28 students (Group A) and 7 dentists (Group B) performed three maxillary impressions on 28 participants, each using vinyl siloxane ether (VSE), polyether (PE), and irreversible hydrocolloid (IHC). Gypsum master casts were fabricated and subsequently digitized.

The influence of age and gender on perception of orofacial esthetics among laypersons in Switzerland.

Objective: The purpose of this study was to evaluate the perception and role of orofacial esthetics by laypersons, and how attitudes may be correlated with age and gender in Switzerland.

Material And Methods: Self-administrated questionnaires (SAQ) were distributed both conventionally and digitally to Swiss residents over 16 years of age (range 16-99 years). The participants were identified in the medical practice, at an open house of the ZMK Bern, in elderly care centers, and via the internet (Facebook and Instagram).