Active clinical trials for "Dental Caries"

This study mainly compared the response of the artificial carious enamel lesions to remineralisation in situ. The tested in vitro demineralising protocols were: MC gel, PA gel, MHDP and Buffer solutions. The lesions were then remineralised in an in situ model, with crossover and double blind design. Fifteen volunteers wore intra-oral appliances containing 2 bovine enamel samples of each demineralising protocol during 3 experimental phases (3 days each). The experimental phases/treatments were: Control (Placebo dentifrice, saliva effect only), Home-care (fluoride dentifrice, 1,100 ppm F, NaF), and Professional/Home-care (varnish- 22,600 ppm F and dentifrice- 1,100 ppm F, NaF). During the 3-day phase, the appliance was only removed during the main meals (four times a day, maximum 1 h duration each, interval between meals 2-3 h). Immediately after the meals, before replacing the appliance in the mouth, the subjects were advised to perform oral hygiene using a soft end-rounded toothbrush (Colgate® 360º Sensitive Pro-Relief TM) and dentifrice (non-fluoridated from IceFresh, Bauru, SP, Brazil or fluoridated dentifrice from Crest Procter & Gamble, Cincinnati, OH, USA) according to the phase and dental floss (Sanifill, São Paulo, Brazil). The remineralising treatment with dentifrices was done ex vivo, 1 min twice a day (after the first and last oral hygiene of the day) using slurry of the dentifrice (1:3 water, 1 drop of solution/specimen). Thereafter, the appliance was replaced in the mouth and the subjects were advised to rinse with 10 ml of water for 5 s and to expectorate. In respect to Professional/Home-care phase, the varnish (Duraphat, Colgate, SP, Brazil) was applied before the in situ study for 6h and then removed. The enamel remineralization was quantified using transverse microradiography (% mineral recovery and lesion depth, TMR), surface and cross-sectional hardness. The data were submitted to statistical analysis (p<0.05).

This study will be a cross-over single blinded clinical study to evaluate the in vitro fluoride release of three different brands of 5% NaF varnish. The goal of this study is to determine if different formulations of varnish lead to differing amounts of fluoride release. Despite their similar concentrations of NaF (5%), some in vitro data have suggested that they may differ in the amount of fluoride release. Determining fluoride release of these varnishes in vivo is important in assessing both the safety and efficacy of the product.

The purpose of this randomized clinical trial is to compare the clinical effectiveness of three treatments involving different caries management strategies (conventional restorations, Hall technique, and Non-Restorative Caries Treatment) to the management of class II carious primary molars in children (3-8 year-old).

The aim of this study is to determine the effectiveness of Er:YAG pulse therapy for achieving pulpal analgesia in pediatric patients and to quantify the duration and extent of any effects assessed. Design: a randomized split-mouth study with two-way repeated measures design.

The aim of this study was to evaluate the survival of direct composite resin restorations in primary molars using different methods of isolation of the operative field: absolute isolation (local anesthesia, use of dental clamp and rubber dam) and relative isolation (cotton rollers and saliva ejector) by a randomized clinical trial. All composite restorations will be performed on children aged 4 to 10 years who present at least one dentin caries lesion or restoration needing replacement, without pulp involvement in a primary tooth. The treatments will be performed in the dental clinic of the University of São Paulo (FOUSP) by trained operators. The teeth will be randomized between the groups: Absolute Isolation (AI) and Relative Isolation (IR) and restored with composite resin (Scotchbond Universal Adhesive adhesive system and Filtek BulkFill composite resin - 3M ESPE) stratified by surface (single or multi surface). Restoration evaluation will be performed after 6, 12, 18, and 24 months by a blind, trained and calibrated examiner. As a primary outcome, the survival of the restorations will be evaluated. The secondary outcomes involve the procedure time (in minutes), professional and material cost (in Brazilian reais), as well as the cost-effectiveness of the restorations and the discomfort reported by the patient (measured using the Wong-Baker scale). The Kaplan-Meier survival analysis and log-rank test will be applied to the survival of the restoration. All variables will be modeled and compared with a Cox regression model of shared fragility. The discomfort reported by the patient will be analyzed by Ordinal Logistic Regression (α = 5%).

68 healthy children from the Department of Pediatric Dentistry at Damascus University who require treatment for their primary maxillary second molars will be randomly assigned into one of two groups: experimental or control groups. In the experimental group, a lidocaine hydrochloride-epinephrine hydrochloride nasal spray will be applied to anesthetize upper second molar before the commencement of treatment. To assess the efficacy of this kind of anesthesia, a specific scale will be used by an external observer after capturing some video files of the performed treatment. To assess the safety of this procedure, vital signs will be recorded before and after treatment. Acceptance of the nasal spray will be recorded based on the child's behavior before and after treatment using Frankl scale. If anesthesia was not sufficient to proceed with the procedure, a rescue anesthesia would be used. Rescue anesthesia consists of an infiltration injection of lidocain hydrochloride 2% with epinephrine hydrochloride (1:100,000). In the control group, an intra-oral lidocaine-epinephrine injection will be applied due to treatment. Safety, efficacy and acceptance will be assessed in the same manner to what is performed in the experimental group.

The aim of this study was to determine if restoring primary molars with SSCs would improve children's OBF.

The aim of this bi-center study was to evaluate the retention and caries-preventive effect of Atraumatioc Restorative Treatment (ART) sealants, using two glass ionomer cement (GIC) versus non-sealant on first permanent molars of schoolchildren. The null hypothesis is that there is no difference in the retention rates of the two GIC, as well as in caries prevention between sealants application and non-sealant. Four hundred and thirty-seven 6-to-8-year-old schoolchildren were selected in two cities in Brazil. They were randomly divided into two groups, according to the GIC used (Fuji IX or Maxxion). All children had their four first permanent molars included in the research and two molars were sealed with a GIC, while the other two molars remained unsealed. Clinical evaluations were performed up to 36 months by one independent examiner at each city.

This study is comparing the effectiveness of two different dental crown fillings (resin crowns and zirconia crowns) for primary front teeth (incisors). Both dental crown fillings are currently used by community pediatric dentists. Resin crowns are currently the standard treatment for primary incisors at The Hospital for Sick Children (SickKids). Zirconia crowns are not presently used at SickKids. It is unknown if one type of crown is better than the other type. If the zirconia crowns produce similar or better results in fixing the primary front teeth, then the zirconia crowns may become the new standard of care at SickKids.

The study is a randomized controlled trial aiming to compare the effectiveness of Silver modified atraumatic restorative technique and (SMART) and conventional atraumatic restorative technique (ART) regarding their caries arresting properties in primary molars, patient acceptance and cost effectiveness.