The effects of sintering temperature and duration on the flexural strength and grain size of zirconia.

: This study investigated the effect of different sintering temperatures and times on the flexural strength and grain size of zirconia. : Zirconia specimens (In-Coris ZI, In-Coris TZI, 120 samples) were prepared in a partially sintered state. Subsequently, the specimens were randomly divided into three groups and sintered at different final sintering temperatures and for various durations: 1510 °C for 120 min, 1540 °C for 25 min and 1580 °C for 10 min.

Micro-CT Detection and Characterization of Porosity in Luting Cements.

Purpose: To evaluate porosity volume and localization in luting cements under fixed dental prostheses after cementation using micro-computed tomography (CT).

Materials And Methods: Seventy-seven sound molars were circumferentially prepared to receive all-ceramic crowns, and IPS e.max ceramic copings were fabricated according to the manufacturer's instructions.

Fracture resistance of teeth restored with all-ceramic inlays and onlays: an in vitro study.

Fracture resistance of inlays and onlays may be influenced by the quantity of the dental structure removed and the restorative materials used. The purpose of this in vitro study was to evaluate the effects of two different cavity preparation designs and all-ceramic restorative materials on the fracture resistance of the tooth-restoration complex. Fifty mandibular third molar teeth were randomly divided into the following five groups: group 1: intact teeth (control); group 2: inlay preparations, lithium-disilicate glass-ceramic (IPS e.

Evaluation of mineral content of dentin treated with desensitizing agents and neodymium yttrium-aluminium-garnet (Nd:YAG) laser.

The aim of this study was to evaluate the mineral content of dentin prepared using three different desensitizing agents and the Nd:YAG laser. The occlusal third of the crowns of 30 molar teeth were cut with a slow-speed diamond saw sectioning machine under water cooling. Dentin slabs from the 30 teeth were randomly divided into five experimental groups, each comprising six slabs.

The use of zirconium and feldspathic porcelain in the management of the severely worn dentition: a case report.

The management of the interim phase of a complete oral rehabilitation in patients with severely worn dentition is often challenging due to the loss of occlusal vertical dimension, loss of tooth structure, uneven wear of teeth creating an uneven plane of occlusion, and parafunctional habits. This case report describes the management of excessive tooth tissue loss in a 45 year old woman with a history of bruxism, esthetical complaints in anterior teeth, and impaired dental function due to reduced tooth height. The patient used occlusal splint for a month and than resection of the alveolar bone was performed on the vestibular sides of the maxillary anterior teeth, except the interdental alveolar crest.