Impact of Spatial Representation on the Quality of Prosthodontic Procedures.

Background: The correlation between the three-dimensional spatial representation (3DSR) abilities, specifically involving spatial orientation, spatial visualisation and spatial relationship, and the performance in exercises related to preclinical practical exams in fixed prosthodontics and removable partial denture is not studied.

Objective: Assess the correlation between the 3DSR abilities and the performance in exercises related to preclinical practical exams in fixed prosthodontics and removable partial denture carried out by second and third year dental students.

Materials And Methods: The 3DSR abilities (spatial orientation, spatial visualisation and spatial relationship) and the scores of preclinical practical exams in prosthetics were tested on 187 students.

Effectiveness of a New Broadrick Flag Support for Assisting Students With the Design of an Occlusal Plane.

Objective: Prosthetic restorations require functional occlusal planes to ensure therapeutic success. The purpose of the present study was to develop a new Broadrick flag support for a semi-adjustable articulator and to investigate the effectiveness of occlusal planes drawn using the Broadrick flag method by inexperienced practitioners in complex situations such as skeletal class II relationships associated with edentulous areas. MÉTHODOLOGY: The Broadrick flag support was designed and manufactured by the additive technique and was adapted to the Quick Master articulator.

Development of impression trays for treating infants with trisomy 21 before their deciduous teeth erupt.

The treatment of infants with trisomy 21 (TS21) with a myostimulation plate can improve their development and quality of life. The manufacture of these plates requires an accurate cast of the maxilla, and their efficacy relies on their stability and retention. As such, the quality of the impression is a determining factor.

Effectiveness of a 3D simulation tool to teach the designing of metal removable partial dentures: A mixed-method study.

Introduction: Acquiring insights into the framework design of metal-based removable partial dentures (mRPD) is a current challenge in dental education. The aim of the present study was to explore the effectiveness of a novel 3D simulation tool to teach designing mRPD by investigating the learning gain and the acceptance and motivation towards the tool of dental students.

Materials And Methods: A 3D tool based on 74 clinical scenarios was developed for teaching the design of mRPD.

Effect of dimensional variations on the manufacturing process and the 3D shrinkage ratio of stereolithographic dental alumina ceramics.

The purpose of the present study was to evaluate the influence of height and length variations of alumina ceramics manufactured by stereolithography on deformations caused by the manufacturing process and on the 3D shrinkage ratio to control the final dimensions and improve the adaptation of stereolithographic ceramic dental prostheses. Two different U-shaped models were designed with variable heights or lengths. The specimens were manufactured by stereolithography and were scanned using a microtomographic device before and after the heat treatment.