Influence of the CAD-CAM Systems on the Marginal Accuracy and Mechanical Properties of Dental Restorations.

The aim of this study was to compare the quality of different computer-assisted-design and computer assisted manufacturing systems (CAD-CAM) generated by only one scanner, focusing on vertical fit discrepancies and the mechanical properties. A master model was obtained from a real clinical situation: the replacement of an absent (pontic) tooth, with the construction of a fixed partial denture on natural abutments with three elements. Nine scans were performed by each tested and 36 copies were designed using a dental CAD-CAM software (Exocad).

Six-month color change and water sorption of 9 new-generation flowable composites in 6 staining solutions.

Color match and water sorption are two factors that affect restorative materials. Discoloration is essential in the lifespan of restorations. The aim of this study was to evaluate color change and water sorption of nine flowable composites at multiple time points over 6 months.

Self-reported Oral Hygiene Habits in Smokers and Nonsmokers Diagnosed with Periodontal Disease.

Purpose: To determine whether smokers report having less adequate oral hygiene habits than nonsmokers.

Materials And Methods: Using a 24-item questionnaire addressing both smoking and oral hygiene habits, patients from three periodontal practices in Spain were evaluated. In order to assess the periodontal status of all patients, immediately following the survey, the patients were examined clinically and categorised according to the American Dental Association (ADA) classification for periodontal diseases.

Dental pulp of the third molar: a new source of pluripotent-like stem cells.

Dental pulp is particularly interesting in regenerative medicine because of the accessibility and differentiation potential of the tissue. Dental pulp has an early developmental origin with multi-lineage differentiation potential as a result of its development during childhood and adolescence. However, no study has previously identified the presence of stem cell populations with embryonic-like phenotypes in human dental pulp from the third molar.

Comparative study of the microtensile bond strength of three different total etch adhesives with different solvents to wet and dry dentin (in vitro test).

The aim of this study was to compare the microtensile bond strength of three different total etch adhesives: XP Bond (Caulk-Dentsply) versus Excite (Ivoclar/Vivadent) and Prime & Bond NT (Caulk-Dentsply). Forty two (42) third human molars were cut to expose the dentinal surface. They were divided into three groups of 14 teeth (GI: XP Bond, G2: Excite, G3: Prime & Bond NT) and two groups of seven teeth for each moisture condition: moist dentin (GM) and dry dentin, (GD).