THE CASE A 30 years old man presented with the main complaint of loose lower denture with which he was unable to chew and speak properly. The loss of multiple teeth (fig.1) was from an alleged roadside accident and it was also associated with multiple fractures of the lower jaw. Upon clinical examination, it was found that the mandibular teeth distal to the left lateral incisor, except for the ...

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...

Implant restoration in the esthetic zone can present many challenges for the clinician. Patient and clinician demands for implant restorations with better esthetics have led to the introduction of ceramic abutments. With this introduction, questions have arisen regarding the properties of ceramic materials and their use in the fabrication of implant abutments. This issue of Report 011 Prosthodo...

PURPOSE Several parameters have been described for determining the success or failure of dental implants. The surface properties of transgingival implant components have had a great impact on the long-term success of dental implants. The purpose of this study was to compare the tendency of two periodontal pathogens to adhere to and colonize zirconia abutments and titanium alloys both in hard su...

PURPOSE The aim of the present study was to evaluate the influence of abutment screw tightening force before laser welding procedures on the vertical fit of metal frameworks over four implants. MATERIALS AND METHODS To construct the frameworks, prefabricated titanium abutments and cylindrical titanium bars were joined by laser welding to compose three groups: group of manual torque (GMT), GT1...

BACKGROUND AND AIMS In contrast to prepared natural dentin abutments,little is known concerning factors influencing the retention of fixed prostheses cemented to implant abutments. The aim of this study was to investigate the effect of im-plant abutment height on the retention of single castings cemented to wide and narrow platform implant abutments. MATERIALS AND METHODS Thirty-six parallel-...

OBJECTIVES An increasing aesthetic demand within developed populations conducted to the fabrication of metal-free restorations and to a wide use of ceramic materials, due to its excellent characteristics of biocompatibility and aesthetics. With the incessant increase of commercial labels involved in this technological advance, a review is imposed on ceramic abutments, specifically on zirconia. ...

PURPOSE The purpose of this study was to use a clinical simulation to determine whether wear of the internal surface of a titanium implant was greater following connection and loading of a one-piece zirconia implant abutment or a titanium implant abutment. MATERIALS AND METHODS Two implants received zirconia abutments and two received titanium abutments. The implants were secured into four fi...

Craniofacial implants may present peri-implant inflammation because there is no close adhesion of the epithelium to abutments and because of bacteria infiltrating the subcutaneous tissue through the gap. Therefore an attempt was made to improve adhesion of epithelium to abutments. In an in vitro model, adhesion of epithelial cells (HaCat cells) to nonmodified and 3 modified Brånemark System abu...

PURPOSE The aim of this in vitro study of titanium abutments was to investigate the extent of treatment traces, the roughness depth, and the quantity of titanium or, in the case of coated abutments, titanium nitride (TiN) removed from the surface after treatment with various instruments. MATERIALS AND METHODS Eleven uncoated, mechanically smoothed abutments and 11 TiN-coated abutments were us...