The influence of a selected desensitizer on marginal microleakage of a class V composite restoration subjected to thermocycles: an in vitro study.

Introduction: Dentin hypersensitivity is a painful clinical condition. The frequency of its occurrence varies from 8 to 57%, depending on tested group and different methods of investigations. Recommended desensitizing agents have different mechanism of action and effectiveness.

Making use of three-dimensional models of teeth, manufactured by stereolithographic technology, in practical teaching of endodontics.

Introduction: Making use of 3D printed teeth models in teaching students offers an innovative approach. The mistakes made by the students at the access cavity stage were assessed with the aid of 3D models, and their overall, hands-on learning progress was evaluated.

Material And Methods: Ninety 3D models of teeth were constructed using stereolithographic technology and then randomly divided into 9 groups.