Application of digital impression and model in removable partial dentures for Kennedy classⅠandⅡdentition defects.

Objectives: This study aimed to evaluate the application of digital impression and resin model technology in removable partial dentures (RPD) for Kennedy classⅠandⅡdentition defects.

Methods: Patients with Kennedy classⅠorⅡdental defect were selected and grouped in accordance with the following denture production processes: digital impression/resin model/cast cobalt-chromium alloy framework group (group A), digital impression/resin model/laser printed titanium framework group (group B), alginate impression/plaster model/cast cobalt-chromium alloy framework group (group C), and alginate impression/plaster model/laser printed titanium framework group (group D), with 40 cases in each group. The final RPD was examined in place in the mouth, and the evaluation indicators included the retention force of clamp ring, the tightness of connector and base, and the accuracy of occlusion.

A polyetheretherketone framework removable partial denture for a 6-year-old child with nonsyndromic oligodontia made using glass-ceramic hemispheres to enhance retention: A clinical report.

A 6-year-old child with nonsyndromic oligodontia in the mixed dentition received a removable dental prosthesis with a polyetheretherketone framework and artificial gingiva, restoring esthetics and function. Computer-aided design and computer-aided manufacturing hemispherical glass-ceramic attachments were added to the teeth under the guidance of acid-etching and bonding guides to obtain an undercut area. The bonding and cementation of the attachments and the prosthesis delivery were completed in a single visit.

Physical and biological implications of accelerated aging on stereolithographic additive-manufactured zirconia for dental implant abutment.

Purpose: This study aimed to comparatively investigate the effects of accelerated aging on the physical and biological features of zirconia manufactured by digital light processing (DLP) and conventional subtractive manufacturing (SM) with similar composition.

Methods: Both the DLP- and SM-fabricated zirconia samples (7 mm × 7.5 mm × 1.

An investigation of the microstructure and mechanical properties of dental zirconia manufactured by digital light processing 3D printing.

Objectives: This study was performed to investigate the microstructure and mechanical properties of dental zirconia manufactured by digital light processing (DLP) 3D printing and the clinical application prospects of this material.

Methods: The experiment (DLP) group was zirconia manufactured by DLP 3D printing, and the control (MILL) group was milled zirconia. The density, grain size, and phase composition were measured to study the microstructure.

Corrigendum to "Determination of Hardness and Fracture Toughness of Y-TZP Manufactured by Digital Light Processing through the Indentation Technique".

[This corrects the article DOI: 10.1155/2021/6612840.].

Determination of Hardness and Fracture Toughness of Y-TZP Manufactured by Digital Light Processing through the Indentation Technique.

Objective: The purpose of the study was to determine the hardness and fracture toughness of dental yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) manufactured by digital light processing (DLP) technology to study its clinical prospects.

Methods: The experimental group was DLP-manufactured zirconia, and the control group was milled zirconia. The hardness was investigated under a range of test loads (0.

[Precise tooth preparation technique guided by 3D printing guide plate with quantitative hole].

The minimum amount of tooth preparation that can be fully controlled is crucial in achieving long-term, stable, and effective aesthetic restoration, which is also a major difficulty in aesthetic restoration. The tooth preparation can be imple-mented efficiently and accurately through digital technology based on the fixed-deep hole guiding technology. Prior the actual tooth preparation, the technology first designs the virtual contour, layering, and virtual occlusion of the prosthesis on the computer.