ABSTRACT
Modern dental adhesive systems have improved the bond of restorative materials to mineralized tooth structures. The purpose of this study was to evaluate the clinical performance of composite restorations placed in abrasion and erosion lesions using the Clearfil Liner Bond dental adhesive system. Following ADA clinical guidelines for dentin and enamel adhesive materials, 62 facial class 5 smooth surface erosion or abrasion lesions with no undercuts and involving primarily root surfaces were restored in 25 adult male and female patients. The teeth were restored without preparations using Clearfil Liner Bond and Clearfil Photo Anterior composite resin. The clinical performance of the restorations was assessed by two examiners at baseline, 6 months, 1, 2, and 3 years using the following evaluative parameters: color match, marginal discoloration, and marginal integrity according to modified Ryge criteria; the presence or absence of recurrent decay; pre- and postoperative sensitivity; and restoration failure due to loss of retention or other causes. At the end of 3 years, four of the 55 restorations remaining in the study failed due to lack of retention (92.7% retention rate). The evaluations of the other clinical parameters demonstrated excellent performance by this system.
Subject(s)
Dental Bonding , Dental Restoration, Permanent/methods , Dentin-Bonding Agents , Methacrylates , Adult , Dental Cavity Lining , Dental Leakage/prevention & control , Dental Marginal Adaptation , Female , Humans , Male , Materials Testing , Resin CementsSubject(s)
Anesthesia, Dental/methods , Electronarcosis/instrumentation , Transcutaneous Electric Nerve Stimulation , Adult , Aged , Analysis of Variance , Chi-Square Distribution , Dental Restoration, Permanent , Double-Blind Method , Evaluation Studies as Topic , Female , Humans , Male , Middle Aged , Pain Measurement , Surveys and QuestionnairesABSTRACT
Various adhesive systems have been introduced for enamel and dentine bonding and one of the newer systems available recently is the Clearfil Liner Bond System. This investigation was to determine the shear bond strength, evaluate the microleakage and conduct SEM examinations of this new bond system. The results showed it was possible to obtain a mean shear bond strength of 17.45 MPa to human dentine. Microleakage was minimal at the cementum/dentine margin and no microleakage was observed at the enamel margin of resin restorations placed with the system. SEM examinations revealed minimal to significant resin penetration into dentinal tubules.
Subject(s)
Dental Bonding , Dental Cavity Lining , Dental Leakage/prevention & control , Dentin-Bonding Agents , Methacrylates , Dental Marginal Adaptation , Dentin-Bonding Agents/chemistry , Humans , Microscopy, Electron, Scanning , Smear Layer , Surface Properties , Tensile StrengthSubject(s)
Radiography, Dental , Adolescent , Adult , Child , Child, Preschool , Female , Humans , Male , Pregnancy , Radiation Dosage , Radiography, Bitewing/standards , Radiography, Panoramic/standardsSubject(s)
Dental Caries/epidemiology , Smoking/epidemiology , Adolescent , Adult , Age Factors , Analysis of Variance , DMF Index , Humans , Male , Middle Aged , Prevalence , United States/epidemiologySubject(s)
Dental Amalgam , Dental Pins , Dental Restoration, Permanent/methods , Crowns , Humans , Root Canal TherapyABSTRACT
The preponderance of evidence indicates that sodium monofluorophosphate exerts a highly beneficial effect on dental caries incidence and enamel solubility. Optimal effects are obtained with a concentration of 4 X 10(3) ppm fluoride, by a four-minute application and by adjusting the pH to 4.0. The reaction of sodium monofluorophosphate with enamel is not temperature dependent. Sodium monofluorophosphate is significantly more protective than sodium fluoride in aqueous solutions at all equivalent fluoride concentrations and in pastes at concentrations exceeding 8 X 10(3) ppm fluoride.
