Trueness and precision of digital impressions obtained using an intraoral scanner with different head size in the partially edentulous mandible
ConclusionsDigital impressions are partially comparable to conventional impressions in terms of accuracy; the use of a larger scanning head may improve the accuracy for removable partial denture fabrication. (Source: Journal of Prosthodontic Research)
Source: Journal of Prosthodontic Research - July 5, 2018 Category: Dentistry Source Type: research
Masticatory performance of the elderly as seen from differences in occlusal support of residual teeth
ConclusionsIt was suggested that the occlusal state affected the masticatory performance of elderly adults. (Source: Journal of Prosthodontic Research)
Source: Journal of Prosthodontic Research - July 5, 2018 Category: Dentistry Source Type: research
Availability of cosmetic treatment using novel cosmetics-based material on patients with craniofacial concavity
ConclusionsThese results suggest that the cosmetic treatment with the novel cosmetics-based material can be used as a subsidiary method for facial prostheses or an independent new method for correcting patients’ small craniofacial concavity and for reducing visible deformity. (Source: Journal of Prosthodontic Research)
Source: Journal of Prosthodontic Research - July 5, 2018 Category: Dentistry Source Type: research
Risk factors associated with post-loading implant loss of removable and fixed implant-supported prostheses in edentulous jaws
ConclusionsMaxillary implants with removable restorations and male sex were risk factors for implant failure among Japanese edentulous patients. (Source: Journal of Prosthodontic Research)
Source: Journal of Prosthodontic Research - July 5, 2018 Category: Dentistry Source Type: research
Masticatory performance and oral health-related quality of life before and after complete denture treatment
ConclusionsThese results suggested that masticatory performance and OHRQoL are significantly improved after treatment and that there is a close relationship between the two. Moreover, functional limitation was found to be the most important factor affecting masticatory performance. (Source: Journal of Prosthodontic Research)
Source: Journal of Prosthodontic Research - July 5, 2018 Category: Dentistry Source Type: research
Digital impression and jaw relation record for the fabrication of CAD/CAM custom tray
ConclusionsDigitalization of the complete denture fabrication process can simplify the complicated treatment and laboratory process of conventional methods In addition, the proposed method enables quality control regardless of the operator’s experience and technique. (Source: Journal of Prosthodontic Research)
Source: Journal of Prosthodontic Research - July 5, 2018 Category: Dentistry Source Type: research
Fracture strength testing of crowns made of CAD/CAM composite resins
ConclusionsAll CAD/CAM composite resin crowns studied presented about 3–4 times higher fracture strength than the average maximum bite force of the molar tooth (700–900 N), which result leads to the conclusion that CAD/CAM composite resin crowns would have sufficient strength to withstand the bite force of the molar teeth. (Source: Journal of Prosthodontic Research)
Source: Journal of Prosthodontic Research - July 5, 2018 Category: Dentistry Source Type: research
Comparing the accuracy (trueness and precision) of models of fixed dental prostheses fabricated by digital and conventional workflows
ConclusionsDigital models had smaller root mean square values of trueness of the complete arch and preparations than stone models. However, the accuracy of the complete arch and trueness of the preparations of 3D printed models were inferior to those of the other groups. (Source: Journal of Prosthodontic Research)
Source: Journal of Prosthodontic Research - July 5, 2018 Category: Dentistry Source Type: research
Strength comparison of anterior teeth restored with ceramic endocrowns vs custom-made post and cores
ConclusionsLeucite ceramic endocrowns in incisors may fracture during physiological loading. Endocrowns made of lithium disilicate ceramic are resistant to failure. Posts and prosthetic crowns are still recommended for anterior teeth restorations. (Source: Journal of Prosthodontic Research)
Source: Journal of Prosthodontic Research - July 5, 2018 Category: Dentistry Source Type: research
Adhesion procedure for CAD/CAM resin crown bonding: Reduction of bond strengths due to artificial saliva contamination
ConclusionThe long-term durability of bonds between CAD/CAM resin blocks and luting agent cement was significantly reduced by artificial saliva contamination. However, sandblasting or phosphoric acid cleaning can recover bonding effectiveness by 75–85%. (Source: Journal of Prosthodontic Research)
Source: Journal of Prosthodontic Research - July 5, 2018 Category: Dentistry Source Type: research
Influence of thermo-mechanical cycling on porcelain bonding to cobalt–chromium and titanium dental alloys fabricated by casting, milling, and selective laser melting
ConclusionsTi-based alloys are more susceptible than Co–Cr to reduction of porcelain bond strength following thermo-mechanical cycling. The porcelain bond strength to Ti-based alloys is affected by the applied metal processing technology. (Source: Journal of Prosthodontic Research)
Source: Journal of Prosthodontic Research - July 5, 2018 Category: Dentistry Source Type: research
Measuring system for an attitude angle of a denture using an Inertial Measurement Unit
ConclusionsThe measurement accuracy of this system was equivalent to that of 3-D motion capture system by four infrared TV cameras. The measuring system using the IMU is reliable and easy to analyze the attitude angle of the denture during function. It may serve a diagnostic appliance to evaluate the quality of the denture. (Source: Journal of Prosthodontic Research)
Source: Journal of Prosthodontic Research - July 5, 2018 Category: Dentistry Source Type: research
Displacement comparison of CAD–CAM titanium and zirconia abutments to implants with different conical connections
ConclusionAbutments displaced more in the implant that required higher torque values to tighten the abutment. The amount of displacement in both systems was clinically small. Abutment material did not affect the magnitude of displacement. (Source: Journal of Prosthodontic Research)
Source: Journal of Prosthodontic Research - July 5, 2018 Category: Dentistry Source Type: research
Effect of priming agents on shear bond strengths of resin-based luting agents to a translucent zirconia material
ConclusionsApplication of priming agents containing hydrophobic phosphate monomer (MDP) yielded the durable bond strengths of resin-based luting agents to a translucent zirconia material. (Source: Journal of Prosthodontic Research)
Source: Journal of Prosthodontic Research - July 5, 2018 Category: Dentistry Source Type: research
Evaluation of surface treatments of monolithic zirconia in different sintering stages
ConclusionsAir abrasion in the pre-sintered stage might be a promising surface treatment method to produce promising surface roughness values of zirconia without subjecting it to early degradation. (Source: Journal of Prosthodontic Research)
Source: Journal of Prosthodontic Research - July 5, 2018 Category: Dentistry Source Type: research
