BACKGROUND Fractured connections between implants and implant abutments or abutment screws are frequently encountered in a clinical setting. The purpose of this study was to investigate fracture strength using a torsion test at the interface between the implant and the abutment. METHODS Thirty screw-type implant with diameters of 3.3, 3.8, 4.3, 5.0, and 6.0 mm were submitted to a torsion test...

The aim of this study was to qualitatively evaluate the marginal vertical fit along two different implant-abutment interfaces: (1) a standard abutment on an implant and (2) a computer-aided-design/computer-aided-machine (CAD/CAM) customized screw-retained crown on an implant. Four groups were compared: three customized screw-retained crowns with three different "tolerance" values (CAD-CAM 0, CA...

Interdental papillae regeneration remains a challenge in implant dentistry in cases in which papillae are lost following tooth extraction. This report presents an implant case with missing 1st and 2nd premolars and total papillary loss. We performed immediate provisionalization to the first premolar implant with a temporary abutment and crown, whereas the second premolar was submerged. Crown co...

Implant supported dental prostheses are increasingly used in practice. The aim of this narrative review is to present the influence transmucosal surface prosthetic abutment and implant on peri-implant tissue. article describes causes bone loss around implant. Moreover, properties different materials compared discussed. advantages, disadvantages, biomechanical concept implant-abutment connection...

The purpose of this study is to numerically analyze a 3D model an implant under fatigue loads. A bone and V shape were modeled using SolidWorks2008 software. In order obtain exact model, the was assumed as linear orthotropic material. Mechanical loads applied in terms fastening torque abutment mastication force at top crown. tightened into by applying 35 N.cm causing tensile stress within screw...

PURPOSE The aim of this study was to examine the bending moments and fracture patterns of different zirconia abutments with internal implant-abutment connections after static loading and to compare their bending moments to those of internally connected titanium abutments. MATERIALS AND METHODS Three types of customized zirconia abutments (Straumann CARES abutments/Straumann BL implants [T1], ...

Studies on the seismic response of skewed integral abutment bridges have mainly focused under far-field non-pulse-type ground motions, yet large amplitude and long-period velocity pulses in near-fault motions might significant impacts bridge response. In this study, nonlinear dynamic an (SIAB) pulse far-fault non-pulse type are analyzed considering soil–structure interaction, along with paramet...

Abstract There are cases where the common approaches used to assess temperature loading effects may not be sufficient, especially in case of integral abutment bridges (IABs). In IABs, incorrect choice design result an unwanted tensional state bridge decks and additional loads on abutments. For post‐tensioned bridges, combined excessive loss tension cables due time‐dependent phenomena like relax...

PURPOSE To investigate the clinical usefulness, a customized abutment produced with the Pd-Ag-In alloy was compared with a customized abutment produced with the conventional titanium alloy for discoloration and mechanical accuracy. MATERIALS AND METHODS Discoloration and resistance to corrosion of the Pd-Ag-In alloy were evaluated using chemical solutions. Marginal adaptation of internal-type...