Exploiting optical coherence tomography to evaluate wear in spiral dental polishing systems.

This study aimed to evaluate the behavior of spiral polishing systems in restorative materials through optical coherence tomography (OCT). Performance of spiral polishers specific to resin and ceramics were evaluated. The surface roughness of restorative materials was measured, and images of the polishers were acquired by OCT and stereomicroscope.

Microscopy in Endodontics: A Bibliometric Survey.

Background: Microscopy is a resource used in endodontics as an aid in the study of pulp and periapical pathologies; it has allowed Endodontics to become more accurate, less invasive and has enabled greater chances of success in treatment. We aimed to map the scientific production on "microscopy" and "endodontics" in the databases, the ISI Web of Knowledge/Web of Science .

Methods: This bibliometric survey was conducted using ISI Web of Knowledge/Web of Science database, in the time frame between the years 1945 and 2016, the first being found in 1981.

Activity of poly(methacrylic acid)-silver nanoparticles on fluconazole-resistant Candida albicans strains: Synergistic and cytotoxic effects.

Aims: To synthesize and evaluate the antifungal activity of poly(methacrylic acid)-silver nanoparticles (PMAA-AgNPs) against nine Candida albicans isolated from clinical specimens.

Methods And Results: The effects of PMAA-AgNPs-fluconazole combination was analysed by checkerboard methodology. The synergistic potential of PMAA-AgNPs-fluconazole was determined by the fractional inhibitory concentration index (FICI).

The Impact of Dental Midline on Asymmetric Faces: Perspective of Laypersons and Dentists.

Background: The objective was to determine if asymmetric facial features, nasal and chin deviations, affect the perception of attractiveness of a dental midline angulation, and if it is consistent among both dentists and laypeople. It was also analyzed if factors, such as the sex, age group of the participants and the dentist's area of operation are relevant in their assessment.

Methods: A cross-sectional study, approved by the Ethics Committee of Fernando Pessoa University.

Bone repair in defects filled with AH Plus sealer and different concentrations of MTA: a study in rat tibiae.

Objectives: This study aimed to evaluate the effects on bone repair of different concentrations of mineral trioxide aggregate (MTA) added to AH Plus.

Materials And Methods: Bone tissue reactions were evaluated in 30 rats () after 7 and 30 days. In the AH + MTA10, AH + MTA20, and AH + MTA30 groups, defects in the tibiae were filled with AH Plus with MTA in proportions of 10%, 20% and 30%, respectively; in the MTA-FILL group, MTA Fillapex was used; and in the control group, no sealer was used.