conclusions estelite sigma quick composite had wear resistance similar to that of nano- and microfilled composites. estelite flowable composites demonstrated similar wear resistance to that of a posterior composite. results the wear amounts of the composites are as follows in order: estelite sigma quick (1886.9 ± 518.5 μm2), estelite flow quick (2708.9 ± 578.1 μm2), estelite high flow (3206 ± 2...

background and objective: the concept of immediate occlusal loading with dental implants offers several advantages. in this research, the effect of type of restoration on osseointegration rate of dental implants was histologically evaluated. materials and methods: three months prior to implantation, the lower premolar teeth of 15 dogs were extracted. then, 3 to 4 maestro™ implants were placed i...

Glass Ionomer Cements (GICs) have a wide range of uses in Dentistry, and the manipulation technique used can influence the results obtained. This study aimed at assessing the knowledge held by Dental School students from a city in Southern Brazil regarding the use of GIC, and the clinical technique chosen for its use and its applications. A structured questionnaire was applied to 60 advanced de...

Metal free ceramic restorations have increased in demand due to their superior esthetics and more resemblance to the natural teeth, more so now that metal-free biocompatible options are preferred. Although porcelain fused to metal crowns are also used owing to less tooth structure loss in their preparation, the metal portion shows through the marginal area giving a blue-gray, cyanotic appearanc...

The tooth structure preservation is the best way to postpone more invasive therapies. Especially in young patients more conservative techniques should be applied. Bonded porcelain veneers and even more the direct composite restorations, are the two therapeutic procedures that require the fewer sacrifice of dental tissue, finalized to the optimal recovery of aesthetic and functional outcome. Alt...

As a result of the complex configuration of a dental restoration, an analysis of internal stresses utilizing the theory of elasticity is extremely difficult to accomplish. The method of photoelasticity, however, appears to be particularly suitable for such occasions. Many investigators have used two-dimensional photoelastic dental models to study, among others, the effects of rounding axiopulpa...

Pediatric dentists should always aim for esthetic and functional rehabilitation of decayed/traumatized primary teeth. The most common method for restoring such teeth involves the use of "strip crowns" with composites, while the recent trend is toward using other extracoronal restorations including preve-neered stainless steel crowns and zirconia crowns. All these restorative options have shown ...

The aim of this article was to report on the attitudes, opinions and confidences of final year dental students in three European schools towards the restoration of posterior teeth and in particular towards the use of amalgam and resin composite. One hundred and twenty-eight pre-piloted questionnaires were distributed to final year dental students in Cardiff, Dublin and Malmö. The questionnaire ...

The need for accurate provisional restorations has led to the introduction of a multitude of materials for the same, with considerable variation in physical, chemical and biologic properties. Polymethylmethacrylatebased materials have long dominated the arena of provisional restorative materials, but the advent of newer resin based materials with superior handling characteristics has broadened ...

We present a technical note and 3 case reports of all-on-4 treatment of highly resorbed maxillas. The use of 4 angled implants, placed at as much as 30 degrees off axis, that engage the lateral nasal wall bone provide high torque fixation for immediate temporization. The technique is proposed as an alternative to sinus grafting and for use with multiple implants or zygomatic implants.