Children's peer relationships, well-being, and academic achievement: the mediating role of academic competence.

The present study aimed to explore the interplay among two indicators of children's school peer relationships (i.e., peer acceptance and perceived number of friends) and two significant life domains (i.

A rare morphological variant of the first maxillary premolar: a case report.

Anatomical variations of the dental root morphology may lead to endodontic treatment failure. Knowledge of root morphology and possible anatomical variations may ensure proper endodontic treatment and long-term success. The present study describes the case of a three-rooted maxillary right first premolar with two buccal roots and one palatal root, each of them having one canal, diagnosed with symptomatic irreversible pulpitis.

Anatomical and clinical considerations regarding the greater palatine foramen.

Objective: In this study, we mapped the topography of the greater palatine foramen (GPF), within the South-Eastern European population, according to clinically identifiable anatomical landmarks.

Materials And Methods: We used 100 dry adult human skulls, of which 75 were bilaterally dentate, whereas 25 were partially edentulous.

Results: The shape of the GPF was oval in 84% of the cases.

A rare variant of internal anatomy of a third mandibular molar: a case report.

The several anatomical variations existing in the root canal system may contribute to failure of the root canal therapy. Knowledge of the internal dental morphology is a complex and extremely important point for planning and performing endodontic therapy. This paper reports the case of a left mandibular third molar that presented only one dental conical root and only one aberrant radicular canal with an initial annular portion situated in the coronar third of the root and a linear portion at the level of the other two thirds of the dental root, which opened through an apical foramen.

The maxillary sinus floor in the oral implantology.

Unlabelled: The aim of this study was to establish the mean distances between the maxillary sinus floor and the roots of the lateral maxillary teeth in dentate subjects, respectively the mean height of the available bone for oral implant placement in the corresponding area, in edentulous ones.

Material And Methods: We determined the maxillary sinus floor position in relation to morphoclinical alveolodental benchmarks on 50 dry skulls, dentate 30 and edentulous 20, and correlations were performed by use of 40 CT-scans of the targeted area. In addition, 20 human adult cadavers were bilaterally dissected in order to bring topographical evidence at that level.