View clinical trials related to Caries, Dental.
Filter by:The goal of this clinical trial comparatively investigate the clinical performances of 3 different tooth-colored restorative materials in the treatment of Class II cavities after 6 months and one year.
Purpose of research: Evaluation and comparison of 24-month clinical performance of injectable and conventional resin composites in class I cavities.
The research question was that in patients with carious posterior permanent teeth, would the electrical impedance device be as valid as digital radiography in estimation of remaining dentin thickness? The proposed hypothesis was null.
In this study the objective is to establish in depth knowledge about adolescents' oral health characteristics, - practices and - needs. Further, we want to evaluate whether adolescents' caries status can be associated with existing socio-economic inequality, emotional health and lifestyle factors. The main question[s] it aims to answer are: 1. What is the caries status (i.e. prevalence, increment at different timepoints and characteristics) among adolescents in Trøndelag? - What is the caries prevalence in different age groups? - Is there any difference in caries prevalence linked to specific age groups, gender or urban versus rural areas? - Are approximal tooth surfaces especially prone to the development of new caries lesions? - Is the caries increment from 12 to 20 years a continuous process or are there high-risk periods within this timespan? - How is the prevalence of enamel caries? Is enamel caries more prevalent in younger age groups than in older age groups? 2. What are the patterns of recall intervals and non-attendance in different age groups, among adolescents in Trøndelag? - What are the attendance rates and prevalence of non-attendance at dental appointments in different age groups? - What is the recall interval between regular follow-up dental visits? - Are there any recall or attendance characteristics linked to age group, gender or urban versus rural areas? 3. What factors (i.e. oral health behaviours, socioeconomic-, lifestyle- and parental factors) are associated with caries among Norwegian adolescents? - How are the oral health behaviours (i.e. dietary- and oral hygiene habits, attendance to dental care) among adolescents, and are there any shared oral health behavioural challenges? - Is the caries prevalence linked to life challenges (mental illness, alcohol/drug use and chronic diseases)? - To what degree are oral health behaviours associated with caries among adolescents? - Is there any association between media screen time and oral health behaviours, and cariesstatus? - Is there any association between physical activity, sport participation and oral health behaviours, and caries status? - What are the associations between socioeconomic factors (study program, birth- and migration background, and parental income, education and employment) and oral health behaviours, and caries status? For research question 1 and 2, the sample will be adolescents aged 12-20 years living in Trøndelag county in the time period 2008-2020, (n≈115000, Statistics Norway, SSB). Data will be extracted from dental health records in the public dental service (Den offentlige tannhelsetjenesten, Trøndelag Fylkeskommune). The public dental service annually reports caries prevalence for 12- and 18-year-olds, Statistics Norway, SSB (Figure 1). However, the knowledge is modest about the caries development within the six years from 12 to 18 years of age. Further, the public dental service offers subsidised dental care to 19- and 20-year-olds. Extracting data from dental health records in the public dental service will give us the opportunity to explore the caries increment at multiple timepoints, and attendance rates at dental appointments throughout the teenage period from 12 to 20 years of age. For research question 3, the sample will be adolescents (n≈8000) and their parents that participated in the fourth survey of The Trøndelag Health Study (HUNT4) in 2017-2019. Self-reported questionnaire data will be linked to data from dental health records in the public dental service.
Treatment with fixed orthodontic appliances is often associated with pain, which poses great challenges in the efficient brushing of the teeth thus making the teeth more vulnerable to plaque formation. Treatment duration with fixed orthodontic appliances usually extends to 18 months or even longer in some cases. This prolonged vulnerability to plaque formation frequently leads to demineralization of teeth. There is also an increase in the number of plaque retentive sites due to the fixed appliances, leading to a rapid change in the bacterial composition of the dental plaque, particularly in the number of acidogenic bacteria. The resulting enamel decalcification is also known as white spot lesions (WSLs), which is an early sign of demineralization of enamel. Enamel WSLs (EWSLs) can be observed even as early as four weeks from the start of fixed orthodontic treatment. The occurrence of EWSLs adjacent to the orthodontic brackets ranges from 15 to 85%. The incidence of EWSLs development is higher in orthodontic patients as compared to the development of similar lesions in non-orthodontic patients. These EWSLs are not aesthetically pleasing and is certainly unacceptable when it develops during fixed orthodontic treatment that is usually performed in patients who often seek such treatment to improve their aesthetics. Additionally, even if the outcome of fixed orthodontic treatment is superior from well-aligned teeth, aesthetics can be greatly compromised with EWSLs. Therefore, the prevention of such lesions is an important concern for orthodontists. Though professionally applied topical fluoride varnish helps in remineralization of EWSLs, an adequate supply of calcium and phosphate ions is essential for remineralization. Therefore, EWSLs on maxillary teeth could be prevented and remineralized by the use of advanced novel topical fluoride varnish with added calcium and phosphate-based delivery system.
This investigation will be a longitudinal clinical trial to study the long-term clinical performance of a resin cement for chairside CAD/CAM restorations. Lithium disilicate chairside CAD/CAM onlays will be adhesively bonded using a selective enamel etch technique with an adhesive. Full contour zirconia crowns will be cemented using a self-adhesive resin cement.
An epidemiological survey for prevalence description of dental morbidity (caries, gingivitis, dental trauma and fluorosis) among Israel Defense Forces (IDF) general recruits. Morbidity measures were collected from 700 recruits at their first day of military service in order to evaluate extent and burden of dental diseases among recruits. The data will enable the military dental services commanders to plan and implement dental services according to the dental needs.