Retention of zirconia copings over smooth and airborne-particle-abraded titanium bases with different resin cements.

Statement Of Problem: How cement type and the surface treatment of a titanium base affect the retention of zirconia copings on titanium bases is unclear.

Purpose: The purpose of this in vitro study was to evaluate the dislodging forces of zirconium oxide copings cemented on implant-supported titanium bases with different luting agents and to examine the influence of airborne-particle abrasion on titanium surfaces.

Material And Methods: Thirty implant laboratory analogs (BioHorizons) were fixed in metal blocks, and 30 prosthetic titanium bases (BioHorizons) were tightened with 35 Ncm of torque.

Radiological comparison of laser-microtextured and platform-switched implants in thin mucosal biotype.

Objective: To compare how laser-microtextured implants and implants with platform switching maintain crestal bone stability in thin peri-implant tissues.

Material And Methods: Thirty laser-microtextured implants of 4.6 mm diameter (Tapered Internal Laser-Lok, BioHorizons, Birmingham, AL, USA; Group 1) and 30 implants with platform switching of 5/4 mm diameter (Certain Prevail; Biomet/3i, Palm Beach Gardens, FL, USA; Group 2) were placed in 30 patients (12 males and 18 females, mean age 42.

The influence of implant placement depth and impression material on the stability of an open tray impression coping.

Statement Of Problem: Subgingival positioning of a single dental implant may result in a less stable impression coping in a polymerized impression material.

Purpose: The purpose of this study was to evaluate the influence of a single dental implant placement depth and different impression materials on the stability of an open tray impression coping.

Material And Methods: Six polyvinyl chloride-based plastic models with single embedded internal hexagon implant analogs were fabricated.

Influence of the temperature on the cement disintegration in cement-retained implant restorations.

The aim of this study was to estimate the average disintegration temperature of three dental cements used for the cementation of the implant-supported prostheses. One hundred and twenty metal frameworks were fabricated and cemented on the prosthetic abutments with different dental cements. After heat treatment in the dental furnace, the samples were set for the separation to test the integration of the cement.