View clinical trials related to Dental Bonding.
Filter by:Background: The aim of this study was to examine the effect of self-etch primer (SEP) application on the bond failure rate of a mandibular bonded lingual retainer over 24 months. Materials and Methods: After the removal of the orthodontic appliances, the lingual retainers, which were made of six-stranded stainless steel wire 0.0215 inches in diameter, wiil bent and bond onto the lingual surface of all mandibular anterior teeth. The study will performed using a split-mouth design. In the study group, the SEP will be administired to the teeth's lingual surfaces. In the control group, they will etch using 37% phosphoric etchant liquid gel. After etching, the primer wiil be applied. The adhesive resin was applied and the lingual retainer was fitted. The patients will be re-valuated over 24 months. The first bond failures and the amount of adhesive remaining on the tooth will be recorded as the adhesive remnant index (ARI) scores. The chi-square test will be used to compare the bond failure rates and ARI scores between the groups. The survival rates of the retainers will be estimated using the Kaplan-Meier test. The significance level will P < 0.05.
This study evaluates the transfer accuracy of 3D-printed trays for indirect bonding of orthodontic brackets in vivo. Accurate placement of orthodontic brackets at the beginning of treatment improves treatment efficiency and shortens treatment time. Indirect bonding is a method of placing orthodontic brackets on a plaster or digital model of the dentition, followed by the transfer of these brackets to the patients' teeth using a transfer tray. Various indirect bonding methods have been developed with the aim of improved bracket positioning and reduced chair time. The success of these methods ultimately depends on how reliably the precise positioning of the brackets on the model can be transferred to the patient's teeth.
Purpose: To evaluate the performance of several dental adhesives used for bonding tooth-colored fillings to teeth 6 years after the fillings have been placed. Participants: Subjects which had participated in the study entitled "Clinical Evaluation of New Total-Etch and Self-Etch Dental Adhesives" (IRB Study #07-0673). Procedures (methods): Fillings that had been placed 6 years ago will be evaluated by a direct, visual examination. Close-up intra-oral clinical photographs of each filling will be made. An impression of the filling may be obtained. The specific study aim of this 6-year recall of the patients treated in IRB Study #07-0673 is to evaluate the fillings placed according to the following characteristics: Retention; Color match; Cavosurface margin discoloration; Secondary caries; Anatomic form; Marginal adaptation and/or integrity; Post-operative sensitivity.