Comparative study of fluoride released and recharged from conventional pit and fissure sealants versus surface prereacted glass ionomer technology.

Context: The fluoride release of sealants in vitro shows a marked decrease. Giomers are distinguishable from manufactured resin-based sealants and contain prereacted glass-ionomer particles (PRG).

Aims: To compare the amounts of fluoride released from the main pit and fissure of a resin-based sealant with that from a Giomer and to assess the abilities of the sealant and the Giomer to recharge when exposed to regular use of fluoride rinse.

Changes induced by music therapy to physiologic parameters in patients with dental anxiety.

Introduction: The aim of this study was to determine the effect of music therapy on patients suffering dental anxiety. In addition, a second objective was to determine the correlation between salivary cortisol and other physiologic parameters.

Methods: 34 patients were randomly assigned to the control group and the experimental group.

Academic stress as a risk factor for dental caries.

Objectives: To evaluate the associations between dental caries classified according to the index for decayed, missing and filled teeth (DMFT) and stimulated salivary flow, salivary capacity for oxidation reduction and academic stress in undergraduate dental surgery students aged 18-22 years.

Methods: This research was performed at three time-points: March 2010, September 2010 and March 2011. The sample was composed of 73 students, including 15 male and 58 female subjects.

Effect of orthodontic treatment on saliva, plaque and the levels of Streptococcus mutans and Lactobacillus.

Objectives: The aim of this study was to identify changes in the oral environment with clinical, salivary and bacterial risk markers after placement of fixed orthodontic appliances on permanent dentition.

Material And Methods: With ethical approval, we used different techniques to analyzed clinical, salivary and bacterial risk markers in 34 patients (mean age, 16.7+5.