The aim of the present study was to evidence the improved behavior of our modified PMMA-TiO2 nanocomposite material used to obtain 3D printed complete dentures. A protocol for long-term rapid prototyping complete denture manufacturing using our nanocomposite material, completely characterized and the evaluation of the clinical performance and complications after eighteen months of continuous wearing was also described. Thirty-five fully edentulous patients were enrolled in this prospective clinical study and forty-five complete dentures (31 maxillary and 14 mandibular) have been obtained using an additive manufacturing technology. Due to the good performances of the nanocomposite material, no major functional complications for the obtained medical devices occurred and the clinical outcomes for the 3D printed dentures were favorable evaluated at eighteen months follow up.

Digital scanners are currently use in various fields of dentistry such as prosthodontics, dental implantology, orthodontics, with a high degree of accuracy, mostly for replacing conventional impressions. The aim of the present study was to assess the accuracy (trueness and precision) of gingival margin measurements, on virtual models obtained by intraoral scanning, for precise diagnosis and treatment monitoring of periodontal disease. Three methods were compared for accuracy: clinical measurements using periodontal probes, digital intraoral scanning and measurements in MeshLab software and 2D digital measurements on intraoral photography taken during clinical measurements. Intraoral scanning was proved to be a reliable method for measuring the gingival level for diagnosis and clinical monitoring having a good accuracy as compared to the gold standard (clinical measurements).

Specifically, maintaining a prolonged sitting position is considered to be associated with an increased risk of musculoskeletal disorders in the back, neck, shoulders, arms, hands, hips, knees and legs. The purpose of this study is to generate data, which can be used to support decisions on improving the health of dental technicians, whose basic activity is carried out in a sitting position at the work table, in order to improve the quality of life. Implementation of ergonomic measures, in the area where professional activities directly affect the physical and mental health of the employee, is of great importance.

Introduction: Esthetic dentistry aims to create a harmonious smile that is well integrated with the facial architecture of the patient. A good understanding of the patient’s esthetic perception is important when designing a smile.Materials and methods: 106 subjects, 51 patients 54 dental students took part in the study. Each subject was asked to evaluate 10 pictures showing frontal aspect of real cases. They were asked to rate the aesthetics of the clinical cases on a scale from 1 to 5. An open question was associated with each picture, where the subjects were asked to describe what they like and what they do not like about the picture.Results and discussions: The overall mean esthetic rating of dental students was 2,68, while the laypersons’ rating was 2,98. Crowded teeth are more often criticized by patients, while dental students consider that slight crowding give a more natural appearance and individualize the teeth. The presence of diastema is observed by dental students even when it is discrete. The discrepancy between maxillary and mandibular dental midline is more easily observed by dental students. Discolored teeth lead to low aesthetic scores for both groups of subjects. Dental students gave lower esthetic scores to restorations with uniform colour, while laypersons appreciate white restorations. The limited height of papillae is considered unattractive by dental students, while laypersons hardly notice this aspect.Conclusions: This study showed several differences in the aesthetic perception of dental students and laypersons. Students were generally more critical and gave lower scores than laypersons. They also observed and criticized more aspects regarding the smile.

Professionals from different fields are exposed to myo-arto-kinetic disorders, among them those in the medical field with dental profile, respectively dentists, dental assistants and dental technicians. Given that specialists in the field of dentistry are exposed to musculoskeletal risk factors with cervical location, the purpose of this study is to provide data to contribute to an effective kinetic intervention strategy for professionals working in the field of dentistry.