Clinical Statement: Staged restorative treatment plan intervention during the various orthodontic treatment phases.

New digital technologies have significantly improved patient treatment modalities, especially in interdisciplinary cases. Tooth morphology can be modified at different stages of orthodontic treatment. Defining and achieving the final tooth form at the beginning or during the treatment can help the orthodontist to move teeth into the correct position quickly and more easily.

The decision-making process in interdisciplinary treatment: digital versus conventional approach. A case presentation.

The digital technology can be a GPS in designing a multidisciplinary treatment that involves orthodontics and restorative dentistry. A proper hierarchy of decisions and responsibilities need to be defined. Form is everything but position and size.

The effect of toothbrushing on surface gloss of resin composites.

Purpose: To determine the changes in surface gloss of different composite materials after laboratory toothbrushing simulation.

Methods: 36 specimens were fabricated for each material and polished with 120-, 220-, 500-, 1200-, 2400- and 4000-grit SiC abrasive paper, respectively. Gloss measurements were made with a glossmeter (Novocurve) prior to testing procedures and then subjected to simulated toothbrushing for 5, 15, 30 and 60 minutes by means of an electric toothbrush with a pressure of 2N while being immersed in a 50 RDA toothpaste slurry.

Marginal adaptation of 1 fiber-reinforced composite and 2 all-ceramic inlay fixed partial denture systems.

Purpose: The aim of this in vitro study was to evaluate the marginal adaptation and retention of inlay fixed partial dentures (IFPDs) made with 1 fiber-reinforced composite and 2 different ceramic materials using quantitative scanning electron microscope analysis after thermal cycling and mechanical loading, which simulated approximately 5 years of oral service.

Materials And Methods: Eighteen IFPDs made with fiber-reinforced composite (SR Adoro/Vectris), zirconium oxide-TZP (Cercon), and magnesia partially stabilized zirconia (DC-Leolux) covered with silica-based ceramics were tested in this study. The specimens were mechanically loaded in the vestibular cusp of the pontic element in a computer-controlled masticator with 1,200,000 half-sinusoid mechanical cycles of maximum 49 N each at a frequency of 1.

Final impressions: a review of material properties and description of a current technique.

Esthetic rehabilitations are characterized by a sequence of well-structured clinical and laboratory steps, during which different kinds of impressions are required. This review presents a survey of the most clinically relevant physical properties that characterize final impression materials and their interactions with the products they are commonly in contact with. The principal steps of an esthetic rehabilitation involving a diagnostic phase, together with a rational step-by-step approach to final impressions, are described.

Stress distribution of inlay-anchored adhesive fixed partial dentures: a finite element analysis of the influence of restorative materials and abutment preparation design.

Statement Of Problem: Indirect composite or ceramic fixed partial dentures (FPDs) have become an alternative to conventional metal-ceramic adhesive fixed partial dentures (AFPDs). Little information about the adequate restorative material and tooth preparation design for inlay-anchored AFPDs is available to the clinician.

Purpose: The purposes of this simulation study were: (1) to use 2-dimensional finite element modeling to simulate stresses at the surface and interface of 3-unit posterior AFPDs made with 6 different restorative materials, and (2) to investigate the influence of 3 different abutment preparation configurations on the stress distribution within the tooth/restoration complex.