Fiber-Reinforced Composites for Full-Arch Implant-Supported Rehabilitations: An In Vitro Study.

Fiber-reinforced composites (FRCs) have been proposed as an alternative to traditional metal alloys for the realization of frameworks in full-arch implant-supported prostheses. The aim of the present in vitro study was to evaluate the deflection under load of seven prostheses endowed with frameworks made of different materials, including different types of fiber-reinforced composites (FRCs). A master cast with four implant analogues in correspondence with the two lateral incisors and the two first molars was used to create full-arch fixed prostheses with the same shape and different materials.

Is headache a risk factor for dementia? A systematic review and meta-analysis.

Objective: In this systematic review and meta-analysis, we critically evaluate available evidence regarding the association between primary headaches and subsequent decline of cognitive function and dementia.

Background: Recent studies suggested that headache disorders may increase the risk for dementia. However, available studies are conflicting.

Roughness and SEM Analysis of Manual and Ultrasonic Instrumentation over Different Crown Materials for Dental Implants Restorations.

The use of new prosthetic materials makes it necessary to establish adequate hygienic protocols. It was decided to make prosthetic crowns from four different materials: composite, lithium disilicate, metal ceramic, and zirconium, and to evaluate the effects on the surfaces of four different instruments through SEM and roughness analysis: manual steel curette, manual titanium curette, ultrasonic steel insert, and ultrasonic peek insert. Forty crowns were made, ten of each type of material.

Modified double-layered flap technique for closure of an oroantral fistula: Surgical procedure and case report.

Several techniques have been used to close oroantral communications, and they vary in their difficulty of execution and success. We present the "modified double-layered flap technique", which is similar to the treatment of labiopalatoschisis, has a high rate of success that is dependent on the skill of the surgeon, and will involve a steep learning curve.

Gnathodiaphyseal Dysplasia: Surgical Treatment and Prosthetic Rehabilitation of 2 Members of the Same Family.

Gnathodiaphyseal dysplasia (GDD) is a rare hereditary syndrome characterized by cemento-ossifying fibromas of the maxillary bones, fragile bones, curvature and cortical thinning of the tubular bones, and diaphyseal sclerosis of the long bones. In this study, 2 complex clinical cases of 2 members of the same family had GDD and were treated in the authors' odonto-stomatology department. The first was treated with a block bone graft and implant-prosthetic therapy; the other, who had extensive osteomyelitis of the second quadrant, was managed with extraction of the involved teeth, surgical revision of the site, and a graft of autologous platelet concentrate.