Assessing shear bond strength of various surface treatments of 3D-printed provisional material with bis-acryl relining material.

Objective: Marginal adaptation of the provisional restoration often requires relining from relining materials. This study determined the effects of surface treatments on the shear bond strength (SBS) between 3D-printed provisional and bis-acryl relining materials.

Materials And Methods: The 3D-printed provisional specimens (9 × 9 × 2 mm) were prepared using methacrylate-based material.

Usability assessment of an electronic health record in a comprehensive dental clinic.

In this paper we present the development and usability of an electronic health record (EHR) system in a comprehensive dental clinic.The graphic user interface of the system was designed to consider the concept of cognitive ergonomics.The cognitive task analysis was used to evaluate the user interface of the EHR by identifying all sub-tasks and classifying them into mental or physical operators, and to predict task execution time required to perform the given task.