Active clinical trials for "Dental Caries"

Objective: Early loss of primary teeth due to caries, can cause occlusion disorders, aesthetic problems, nutritional problems, abnormal language habits, speech disorders and psychological problems temporary or permanent. The purpose of this study was to evaluate the success of using prefabricated aesthetic crowns for the restoration of excessive tooth loss. Study design: In this randomized, non-blinded clinical study a total of 45 teeth were included, primary molars and anterior teeth and requiring restoration after root canal treatment. Stainless steel(SCC), zirconia(ZC) and strip(S) crowns compared clinically, radiographically and periodontally during follow up period for 6 months. Parents were asked to fill out questionnaire at the 1st and 6th months to evaluate the satisfaction level. In addition, patients' pain and discomfort level was assessed using the visual analogue scale (VAS) scale.

Matching the color of resin composite utilized in anterior teeth is believed to be one of the most challenging tasks a dentist has to face in daily practice. The color of the teeth is primary influenced by dentin; on the other hand, enamel has a major influence on the color perception in terms of lightness. In the layering concept, the missing dental tissues are substituted in increments with resin composite of the exact shade as the dental tissue. A translucent composite resin is applied over a more opaque composite resin to achieve a depth perception similar to that of the natural teeth. Which indicates that the visible color is the consequence of diffuse reflectance from the internal dentin or opaque material layer through the external translucent layer. There are numerous elements that make the color matching problematic. These problems arise from the point that color matching rely on many different chromatic properties related to the teeth and resin composite; those include hue, chroma and value; translucency, opalescence and fluorescence; light diffusion and transmission; and luster and texture of the surface. To reach the ideal esthetics, restorative material should mimic the natural tooth in the previously mentioned properties, in addition of having a long time color stability. Massive efforts were achieved over the years to improve the esthetic properties of dental resin composite restorative materials. Recently, a single shade structurally colored universal composite (Omnichroma, Tokuyama Dental) intended for use with most direct restorative clinical cases was introduced in the market. Its manufacturer claimed that it exhibits color change toward the color of the surrounding hard dental tissues. Thus, it has the advantages of improving the esthetic appearance of the restoration, decrease dependence on shade-matching procedures, decrease the number of shade guide tabs, and counteract for color mismatches to some degree. Up till now no studies assessed the color match of Omnichroma resin composite in anterior teeth cavities clinically. Thus, the aim of this clinical trial was to investigate if the single shade structurally colored universal resin composite (OMNICHROMA) will modify its shade to match the tooth structure shade in anterior teeth cavities.

The aim of this randomised controlled double-blinded, split mouth, single-center clinical trial was to evaluate the 18-month clinical performance of nano-filled resin-modified glass ionomer and sub-micron hybrid resin composite restorations in lower first permanent teeth of pediatric patients.

A cohort of newborns was recruited for the Iowa Fluoride Study from 1992-95 to assess the complex relationships among fluoride intakes, fluoride exposures, dental fluorosis, and dental caries. Detailed questionnaires were sent every 1.5-6 months concerning water sources, fluoride exposures, dietary intakes, etc. Standardized dental exams were conducted at ~ages 5, 9, 13, 17, and 23. At about age 5, participants were invited to join the offshoot Iowa Bone Development Study. Bone densitometry assessments were conducted at ages 5, 8, 11, 13, 15, 17, 19, and 23. These included Dual-energy X-ray Absorptiometry (DXA) of hip, lumbar spine, and whole body from age 5; peripheral Quantitative Computed Tomography (pQCT) of the radius and tibia from age 11; and Multi-Detector Computed Tomography (MDCT) of the tibia from age 19. Physical activity and other factors also were assessed longitudinally.

The purpose of this study is to compare esthetic, functional and biological properties of two restoration materials used to fill cavities. One material is called "Filtek™ Supreme" which is a traditional tooth colored resin composite that is placed in the cavity in layers and hardened with UV light. The second material is called "SonicFill™ 2," which is a bulk fill composite that uses an ultrasonic hand piece to change the material from a solid into a liquid in order to place it into the cavity. This material can be placed in the cavity in 1 layer, and is hardened using UV light. Both materials have been FDA approved as non-significant risk devices for filling cavities. In each subject, one tooth with a cavity will be randomly selected to receive one filling material, and a second tooth with a cavity will be randomly selected to receive the second material. The fillings will be observed over a two year period to determine clinical acceptability.

The aim of this randomized controlled trial is to compare partial pulpotomy treatments with Biodentine®, calcium hydroxide (CH) and Mineral Trioxide Aggregate (MTA) in cariously exposed asymptomatic young permanent teeth clinically and radiographically for 1 year and evaluate root developments with Image J Software Program. The null hypothesis of this study is Biodentine® will promote healing with high success rates and induce root development more than CH and MTA.

This study aimed to evaluate the clinical performance of a novel vitro-ceramic biomaterial (Biosilicate®) as treatment of caries-affected dentin in posterior resin restorations. A total of 94 restorations of 66 participants were selected and assigned at random into four groups: 1 (Biosilicate / Two-step etch and rinse system), 2 (Control / Two-step etch and rinse system), 3 (Biosilicate / Two-step self-etching system) and 4 (Control / Two-step self-etching system). Two operators carried out the adhesive protocols and restored the cavities with a nano-hybrid resin composite (IPS Empress, Ivoclar) using the incremental technique. Participants were recalled at one week, 6, 12 and 18 months for clinical evaluation performed by two blinders and calibrated examiners according FDI criteria.

This is a RCT that will compare the clinical and radiographic success of pulpotomies on primary molars between the traditional technique (Formocresol/ZOE) and the new technique with Biodentine. 180 pulpotomies (90 in each group) will be followed for a period of 12 months.

AIM: To evaluate influence of two methods to avoid saliva contamination on the survival rate of atraumatic restorations in primary molars. 232 children, aged between 6-7 years, of both genders, were selected having one primary molar with a proximal dentine lesion. The children were randomly divided into two groups: a control group with class II ART restoration made using cotton rolls and an experimental group using rubber dam. The restorations were made and they were followed up every six months. After two years, the results were compilated and analyzed.

The purpose of this study is to evaluate the therapeutic benefit of Curodont Repair for the treatment of early approximal carious lesions compared to no treatment.