Purpose:Long-term clinical success is closely related to the internal and marginal adaptation of restorations. Thepurpose this study was evaluate zirconia-based fixed dental prostheses in posteriorregion.Materials & Methods:Four-unit porcelain-fused zirconia were fabricated with CAD-CAMsystem 20 patients. For evaluation restorations’ fit, conventional silicone replicas used withthe optical ...

Background: Interim or transitional restorations have been demonstrated as critical components in different dental treatments, they designed to enhance the esthetics, functions and protect oral structures for limited period of time. Aims: This review focuses on several important aspects associated with interim including: materials, techniques fabrication, current trends application fixed prosth...

Purpose. To investigate peri-implant alveolar bone changes using periapical radiographs before and after prosthetic delivery in submerged and nonsubmerged dental implants. Methods. Digital periapical films of 60 ITI Straumann nonsubmerged dental implants and 60 Xive Dentsply submerged dental implants were taken before, immediately after, and 12 and 24 weeks after the prosthetic restoration was ...

OBJECTIVES The purpose of this study was to evaluate the performance of both single and double applications of (Adper Prompt L-Pop) self-etching dental adhesive, when used with three classes of light-activated restorative materials, in comparison to the performance of each restorative system adhesive. Evaluation parameters to be considered for the adhesive systems were (a) immediate marginal ad...

Introduction: This study was carried out to compare two retrograde filling materials entitled mineral trioxide aggregate (MTA) and Root MTA (RMTA) in regard to their marginal adaptation and surface defects. Method: In this study twenty extracted human teeth were used. In all teeth after cleaning and shaping, the root canals were obturated by gutta-percha and root canal sealer. After that in eac...

o bjectives: caries and dental trauma are common reasons for primary anterior teeth restorations in children. this non-control clinical trial was designed to eva- luate crown restorations reinforced with a sectioned file post for the restoration of severely damaged primary maxillary incisors. materials and methods: thirty-eight primary maxillary incisors of 12 children (3-5 years old) with earl...

12 INTERNATIONAL DENTISTRY SA VOL. 8, NO. 4 A dvances in the field of adhesive restorative biomaterials have resulted in adhesive restorations that provide increased retention, marginal adaptation and seal, and reduced microleakage. This evolution in adhesive dental technology has dramatically changed the way dentistry is practised in the modern dental office. Modern adhesive restorative materi...

The most common treatment in general dental practice is the replacement of restorations affected by secondary caries or marginal deficiencies. Alternative treatments to replacement of defective restorations, such as marginal sealing, refurbishment and repair, have demonstrated improvement of their clinical properties with minimal intervention. The aim of this clinical study was to estimate the ...

■ Abstract The ability to adapt to marginal habitats, in which survival and reproduction are initially poor, plays a crucial role in the evolution of ecological niches and species ranges. Adaptation to marginal habitats may be limited by genetic, developmental, and functional constraints, but also by consequences of demographic characteristics of marginal populations. Marginal populations are o...