The placement of a xenograft in fresh extraction sockets markedly counteracted the reduction in the hard tissue component of the edentulous sites.

All CAD/CAM crown materials exhibited high values of fracture and flexural resistance, making them suitable materials for posterior full-crown restorations. Glass-ceramics suffered more from catastrophic and nonreparable fracture patterns, whereas minimal chipping and type II fracture patterns were more common in hybrid materials. The combination of more flexibility, less stiffness, and increased softness with satisfactory flexural and fracture strength values observed in PICN and HPP makes these two hybrid materials suitable choices for chairside monolithic crown fabrication.

The incorporation of computer-aided design/computer-aided manufacturing (CAD/CAM) technology into complete denture fabrication brings about several advantages to the fabrication process, providing better predictability of the desired outcomes and high accuracy of denture fit, mainly because the milling of prepolymerized acrylic resin eliminates the shrinkage of the acrylic base. Also, there is a decrease in the porosity when compared to a conventionally processed denture, and consequently there is a decrease in the retention of Candida albicans on the denture base. The presented workflow for complete denture fabrication presents a totally wax-free manufacturing process, combining rapid prototyping (RP) and rapid milling. With the presented technique, the maxillomandibular relation (MMR) and the ideal setup of the tooth arrangement are developed by using occlusion rims and trial setup made with RP. For the definitive final denture, the denture base and the basal surfaces of the conventional denture teeth were milled according to the individual clinical situation. Posteriorly, the teeth were adapted and bonded into the milled sockets of the milled base.

Purpose: The purpose of this systematic review was to assess the available literature to evaluate the clinical performance of different post systems for the rehabilitation of endodontically treated teeth (ETT). Clinical Significance: The loss of structural integrity of endodontically treated teeth usually requires the use of intra-radicular posts for the retention of the final restoration. The recent literature has reported controversial results regarding the clinical performance of different systems. Material and Methods: An electronic search restricted to the English language was performed up to May 31, 2020. Articles were selected if they met the following criteria: cohort studies and randomized clinical trials comparing the failure rate incidence between fiber and cast metal post, with a mean follow-up of 3 years. Results: 24 studies (14 cohort studies and 10 RCTs) published between 2000 and 2018 were included in this review. For cast metal posts, 210 cases were classified as failures (17.07%), and for fiber posts, 423 were classified as failures (10.6%). An unpaired t-test revealed that cast metal and fiber post values were not significantly different (p = 0.58) with the difference between means of 5.00 with 95% confidence of interval (-13.38 to 23.39). Four studies that presented cast metal and fiber posts groups were combined in the meta-analysis. There was no significant difference in the general failure analysis (risk ratio of 0.59 [95% CI: 0.30 to 1.18]; p = 0.13). Conclusions: Based on the present analysis results, the clinical performance of ETT restored with either cast metal- or fiber post-retained restorations presented similar results.