Active clinical trials for "Tooth Erosion"

Not only caries but also exposure to acids can lead to loss of tooth structure. This acid-related tooth structure loss is defined as dental erosion. A relationship between dental erosion and occurence of reflux disease was shown in numerous studies. On the one hand, patients with dental erosions frequently show reflux disease. On the other hand, many - but not all - reflux patients show dental erosions. It is believed that certain salivary parameters might explain, why not all reflux patients alike are affected of dental erosions. The aim of this study is to analyze the relationship and the extent of occurrence of dental erosions and reflux symptoms, including investigation of certain salivary parameters.

40 specimens were prepared from fresh-extracted human molars and further embedded using the acrylic resin. Specimens were randomly divided into 2 groups according to the treatment before in vivo erosion (n=20): CPP-ACP for 3 min (CPP-ACP group) and deionized water for 3 min (control group). 10 healthy volunteers were recruited and customized maxillary appliance containing 4 specimens (2 from CPP-ACP group and 2 from control group) was fabricated for each volunteer. Participants were instructed to drink 150 ml cola in 5 min using the gargling method after placing appliances intraorally for 2 h. The in vivo attacks were performed 4 X 5 min with 1-h interval daily over 7 d. The surface microhardness and surface microstructure of the specimens were evaluated at the baseline and after the treatment. The data were statistically analyzed using three-way ANOVA and post hoc tests. Data were considered statistically significant at a level of P <0.05.

Non-carious cervical lesions are defined as loss of pathological material not associated with caries in the enamel-cement junction of the tooth. The etiology of these lesions has been defined as brush abrasion, acid-induced erosion and abstraction due to microstructure losses due to stress concentration in a particular region of the tooth. These lesions should be restored using minimally invasive techniques. The necessity of restorative treatment is directly related to the size of the lesion, sensitivity and aesthetic requirements. However, restorative procedures are often challenging because the cavity preparation does not provide adequate retention, and often the cervical end margin is positioned under the gingiva. This leads to contamination of the operation site with blood, saliva and gingival fluid. Several restorative options have been proposed for the treatment of cervical caries-free lesions. However, due to their high aesthetic properties, improved adhesive capacity and mechanical properties, composites have been accepted as the most suitable choice. Clinical studies have demonstrated that marginal adaptation, marginal discoloration, and roughening methods for retention are the most important factors in the clinical performances of composite restorations in cervical lesions. Therefore, injectable composites with wettability and better adaptability to cavity margins have been introduced. However, the low filler contents of fluid composites and their weak mechanical properties compared to conventional composites have led researchers to doubt their use in caries-free cervical lesions. As a result of the developed material technology, injectable composites with high filler which have reduced polymerization shrinkage have been developed with simplified filler procedure. However, investigators have not encountered any studies investigating which etching technique this material will exhibit better clinical performance and comparing it with traditional pasty composites. The aim of this study is to evaluate the clinical performance of traditional paste type and injectable composites which will be made by using two different etching techniques.

This exploratory study is designed to help develop a clinical model to measure the earlier stages of dietary acid medicated enamel loss. The study will use fluoride as positive control to explore the validity of this design.

Healthy volunteers are observationally wearing an intraoral device with bovine tooth samples once for two hours. Afterwards, Calcium release from the bovine enamel and dentin samples is measured after extraoral erosion. Total protein concentration within the formed salivary pellicles on the bovine samples is determined. Further Salivary parameters (unstimulated and stimulated saliva flow rate, pH, buffer capacity, albumin and total protein content as well as concentration of inorganic calcium, phosphate and fluoride) are being measured. The aim of this study is to investigate whether gender differences in the salivary composition correlate with predisposition to erosion.

Study to determine if whether or not exist an association between the tissue loss (ETW progression) and the frequency of an acidic diet. To accomplish the aim, a quantitative analysis of intraoral scans of study models will be performed to identify erosive tooth wear progression in a group of Chilean adolescents. First, participants with different intake of dietary acids will be compared in terms of their baseline sociodemographic and clinical characteristics. Second, the association between baseline frequency of dietary acids and changes in volume loss over time will be evaluated using linear mixed models to account for the data structure (repeated assessments nested within teeth and teeth nested within children). Models will be adjusted for demographic factors, family socioeconomic position, health behaviours and chronic conditions.

This study investigates the prevalence and pathophysiology of dental and periodontal involvement in pediatric patients with symptomatic or asymptomatic gastroesophageal reflux (GER) or gastroesophageal reflux disease (GERD). Primary objectives are to compare the prevalence of oral disease in children with and without a diagnosis or symptoms/signs of GERD in a cross-sectional study. Secondary objectives are to examine factors that might lead to the pathogenesis of the dental and periodontal lesions observed in this group of subjects. The primary hypothesis is to prove that children aged 10-18 years diagnosed with or having symptoms or signs of GERD have a significantly higher amount of dental erosions in comparison to a matched control group. Secondary hypotheses are that children aged 10 - 18 years diagnosed with or having signs of GER have higher DMFS (Decayed, Missing, Filled permanent tooth Surfaces) rates, higher SBI (Sulcus Bleeding Index) rates, worse Periodontal status, and lower saliva buffering capacity.

This study aimed to investigate the relationship between gastroesophageal reflux disease (GERD) and dental erosion and the alterations in oral tissues. This was a case-control study. The GERD group consisted of 50 individuals with endoscopic esophagitis who had gastroesophageal reflux symptoms, and the control group consisted of 50 healthy individuals. The prevalence of teeth wear and caries was evaluated using the Smith and Knight tooth wear index (TWI) and the decayed, missing, and filled teeth index (DMFT), respectively. Inflammatory mouth sensitivity, tongue sensitivity, nonspecific itching and burning, halitosis, dry mouth, teeth sensitivity, and the erythema of the soft and hard palatal mucosa and uvula were also evaluated. Stimulated saliva samples were collected, and the salivary flow rate, pH, and buffering capacity values were measured.

Objectives To compare oral health (dental caries, periodontal status, and erosive tooth wear (ETW)), diet and oral hygiene habits between obese and normal weight adolescents, and to explore possible risk associations. Materials and Methods In this case-control study, a convenient sample of 81 obese adolescents (age range 11-18) from a rehabilitation centre, and 81 age-sex-matched normal weight adolescents were selected. Groups were defined using the Body Mass Index and growth curves for Flemish. Oral health was measured using DMFT, gingival, plaque and BEWE index. A validated questionnaire was utilized to assess diet and oral hygiene habits.

Dental erosions, the chemical dissolution of enamel without bacterial involvement, are considered to be an established complication of gastroesophageal reflux disease (GERD) by the Montreal global consensus statement. Given the high prevalence of dental erosions and the absence of any pH-impedance data or medical management guidelines for GERD-associated dental erosions, reflux characteristics will be characterized using questionnaires, endoscopy and esophageal pH-impedance testing, in successive patients dental erosions referred by dentists for evaluation of GERD. For assessment of the role of additional factors besides H+ activity in the refluxate, a sample of gastric juice will be aspirated during endoscopy and frozen for analysis of pepsin and other proteases. Prognostic factors for progression of dental erosions will be determined by repeating the evaluation after chronic dosing with esomeprazole 20mg twice-daily, which is prescribed to all patients.