Effect of saliva contamination on cementation of orthodontic brackets using different adhesive systems.

Background: The enamel condition and the quality of surface are points that need to be considered for achieving optimal efficiency in the treatment with orthodontic brackets. The aim of this study was to assess the immediate bond strength of metallic brackets cemented to dental.

Material And Methods: Forty human premolars were double-sectioned, placed in PVC matrices and randomly divided into 10 groups (n=8).

Transferring Conditioned Partially Edentulous Ridge Form to a Master Cast.

Gingival conditioning techniques in prosthodontics aim to overcome bone and soft-tissue defects that often compromise the outcome of restorations in terms of esthetics, function, and biocompatibility. Whatever the technique used, it is essential to reproduce a regular concave gingival outline in order to recreate the natural aspect of the relationship between teeth and gingiva, eliminating black triangles. Transferring the details of the conditioned soft tissue to the laboratory technician with precision may be challenging.

Sleep bruxism and anxiety level in children.

This study evaluated the association of level of anxiety in children with and without sleep bruxism (SB). The study was performed with 84 six- to eigth-years-old children, divided into two groups: with bruxism (BG) and without bruxism (CG). Following the criteria purposed by American Academy of Sleep Medicine (AASM) to determine SB, the presence of tooth wear has been verified through clinical examinations, and the parents have answered a questionnaire about their children's behavior and habits.

Assessment of acid neutralizing capacity in cola-based drinks and energy beverages by artificial saliva.

Objective: To assess the pH of regular and light cola-based drinks and energy drinks, and examine the acid neutralizing capacity by the addition of artificial saliva.

Materials And Methods: Ten packages of each product purchased locally at different stores were evaluated. The pH was measured by a pH-electrode calibrated in standard buffer solutions.

Histometric study of resorption on replanted teeth with enamel matrix-derived protein.

Background: Enamel matrix-derived proteins (Emdogain) stimulate the proliferation of periodontal ligament cells, contributing to their regeneration.

Aim: This study was to perform histometric assessment of root surface resorption in replanted teeth with the use of Emdogain®.

Materials And Methods: Male Wistar rats (Rattus norvegicus), weighing 180 to 200 gm, were anesthetized, subjected to extraction of the upper right incisor tooth, which was then replanted into the alveoli with the following treatment: (a) control group--tooth with root canal filled with calcium hydroxide paste and (b) treated group--tooth with root canal filled with enamel matrix-derived protein.

Vascular leiomyoma in the oral cavity.

The aim of this study was to examine a case report of vascular leiomyoma located in the oral mucosa of the oral cavity. Vascular leiomyoma is a benign tumor arising from smooth muscle. One factor that makes vascular leiomyomas in the oral cavity rare is that there is little smooth muscle in the mouth.

Effects from exposure to dental amalgam on systemic mercury levels in patients and dental school students.

Objectives: The purpose of this study was to evaluate the systemic mercury levels in urine of patients and dental school students caused by exposure to silver amalgam. It is currently believed that occupational exposure shows the highest rate of potential for poisoning by mercury. Dental professionals are part of that quota, introducing concerns regarding the handling of dental amalgam.