PURPOSE This study examined the effects of the abutment types and dynamic loading on the stability of implant prostheses with three types of implant abutments prepared using different fabrication methods by measuring removal torque both before and after dynamic loading. MATERIALS AND METHODS Three groups of abutments were produced using different types of fabrication methods; stock abutment, ...

Introduction. The creation of effective, reliable, safe, technologically advanced and competitive products is the main task medical device engineering. most important requirement to modern devices guarantee patients’ safety during their lifetime. Today use computer-aided engineering analysis packages effective calculation method for evaluating strength reliability unique that can lead serious c...

Objectives This study compared full-arch screw-retained implant-supported fixed dental prostheses (FSI-FDPs) and telescopic-retained with a professional retrieval system (FTI-FDPs) on marginal bone loss (MBL), the risk indicators peri-implantitis rate after 7–13 years. Material methods Sixty five edentulous patients were treated 86 592 implants. The FSI-FDP group comprised 26 (32 prostheses, 20...

Background: Acute swelling or cellulitis may develop within a few days after placing definitive prosthesis reconnecting loose healing abutment/prosthesis, though its cause remains unclear. In this study, we propose mechanism for the underlying pathogenesis. Methods: We retrospectively reviewed symptoms and signs, onset of symptoms,...

provisional cements are commonly used to facilitate retrievability of cement-retained fixed implant restorations; but compromised abutment preparation may affect the retention of implant-retained crowns.the purpose of this study was to investigate the effect of abutment design and type of luting agent on the retentive strength of cement-retained implant restorations.two prefabricated abutments ...

STATEMENT OF PROBLEM Unlike screw-retention type, fixture-abutment retention in Locking taper connection depends on frictional force so it has possibility of abutment to sink. PURPOSE In this study, Bicon® Implant System, one of the conical internal connection implant system, was used with applying loading force to the abutments connected to the fixture. Then the amount of sinking was measure...

objectives : this finite element method study aimed to compare the amount of stress on an isolated mandibular second premolar in two conventional reciprocal parallel interface designs of removable partial dentures (rpds) and the same rpd abutment tooth (not isolated). materials and methods: a kennedy class 1, modification 1 rpd framework was simulated on a 3d model of mandible with three differ...