Cyclic Fatigue Resistance of Four Heat-Treated Nickel-Titanium Files in Severely Curved Simulated Canals: An In Vitro Study.

: Rotary Ni-Ti files are susceptible to sudden intra-canal separation due to cyclic fatigue stress, particularly in curved canals. To increase resistance to cyclic fatigue, new heat-treated files have been introduced. This study aimed to compare the performance of four heat-treated Ni-Ti files in two simulated curved root canals by evaluating the effect of the alloy, rotation speed, and diameter of the files on their resistance to cyclic fatigue.

Minimally invasive digital implant-prosthetic procedure in "all on 4" rehabilitation in patients with special needs: a three-year follow-up.

The present study describes an innovative procedure for resolving implant-prosthetic cases in patients with edentulous special needs. In 2017 a 56-year-old female patient came to the Department of Dentistry of Vita-Salute San Raffaele Hospital, Milan, Italy, requiring implant-prosthetic rehabilitation of the dental arches given the difficulty in wearing removable prostheses. The first level radiological examinations were evaluated, two technical photographs were taken with specific reference, the 2D Digital Smile Design (Smile Design) was then carried out, the provisional prosthesis was performed and the CBCT requested with repere and provisional prostheses to realize the computerized implant project and an atraumatic flapless guided surgery.

Traditional prosthetic workflow for implant rehabilitations with a reduced number of fixtures: proposal of a protocol.

The aim of this study was to describe a standardized protocol for the creation of a definitive prosthetic rehabilitation supported by a reduced number of implants, achievable with a limited number of an optimized appointments. The proposed protocol provides only for 4 appointments to finalize the set work. During the first appointment, definitive impressions are taken in order to obtain the master models and plaster bars.

Digital smile planning technique applied to prosthetic rehabilitation of dental esthetic area: a case report.

Unlabelled: Nowadays, the objective of esthetic rehabilitation is not only to guarantee the results to the patients in terms of esthetic parameters but also the possibility to show the pre-visualization of possible results and therapy planning.

Objective: The aim of this study is to apply the 3D-DPS digital planning technique, in the prosthetic treatment of a patient, to produces digitally the mockup for the digital previewing and esthetic crown and veneer for the final prosthetic treatment.

Materials And Methods: A case report participant is a young patient, a female, 26 years old, with no oral, periodontal, or systemic diseases.