OBJECTIVES The objective of this one-year clinical study was to investigate the effect of two adhesive systems (Adper Single Bond, a two-step etch-and-rinse and Clearfil SE Bond, a two-step self-etch system) on pit-and-fissure sealant retention in newly-erupted teeth. This study compared the success of the sealants in mesial and distopalatal grooves with and without these two adhesive systems. ...

Several preventive methods were used in combination to reduce dental caries in children residing in a fluoridated area. The method included dental health education, prophylaxis, pit and fissure sealants, topical fluoride and restorative care. Prophylaxis, sealant and fluoride procedures were repeated every 6 months. Sealant was applied to all fully erupted caries free posterior teeth in the mou...

We tested some resin-based composites used in dentistry for their estrogenic activity. A sealant based on bisphenol-A diglycidylether methacrylate (bis-GMA) increased cell yields, progesterone receptor expression, and pS2 secretion in human estrogen-target, serum-sensitive MCF7 breast cancer cells. Estrogenicity was due to bisphenol-A and bisphenol-A dimethacrylate, monomers found in the base p...

Oxygen inhibition of sealant polymerization occurs when substantial tin'cknesses of low viscosity resins are applied to smooth tooth surfaces. Measurements have shown a range of sealant thickness from 0 to 228 micrometers. The objective of tins study was to test whether or not the polymedzed film present on the tooth was sufficient to provide protection against enamel dissolution. Metal bracket...

UNLABELLED BACKGROUND Controversies surrounding the efficacy of surgical sealants against alveolar air leaks (AAL) in lung surgery abound in the literature. We sought to test the sealing efficacy of a novel synthetic sealant, TissuePatch™ in an in vitro lung model. METHODS The lower lobe of freshly excised swine lung (n = 10) was intubated and ventilated. A superficial parenchymal defect (...

The incidence of clinical mastitis and infection status at calving was assessed in quarters treated with 1 of 2 internal teat sealants at the time of dry off. Two contralateral quarters per cow (n=63 cows) were treated with a sealant that contained 0.5% chlorhexidine; the other quarters were treated with a commercial teat sealant. Ten cows were untreated (controls). On d 2, 4, and 16 after dry ...

OBJECTIVES This study investigated socio-economic factors associated with the placement of fissure sealants in a population of South African adolescents. METHOD The study participants were high school students aged 12 to layers who provided baseline data during 2005 in a tobacco-use prevention trial, and consented to oral examination (n=1103). Information was obtained using a self-administere...

PURPOSE Since properly placed and retained sealants can reduce the incidence of caries lesions and save subsequent restorative costs, the purpose of this study was to compare the subsequent restorative cost in a group of predominantly African American Medicaid children who received prior sealants to that of a group of children who did not receive sealants. METHODS Dental claims of 2 cohorts o...

The clinical effectiveness of a self-polymerized fissure sealant was studied, in 205 children, ages 6-10 years (mean age 71⁄2 years). There were 313 sites sealed and after four and six years, 247 and 115 were available for recall After four years, sealant retention was 73 % and effectiveness in caries reduction was 77%. After six years, 58% of sealants were retained and these were 56 % effectiv...

We evaluated the influence of photoactivation method and hydrophobic resin (HR) application on the marginal and internal adaptation, hardness (KHN), and crosslink density (CLD) of a resin-based fissure sealant. Model fissures were created in bovine enamel fragments (n = 10) and sealed using one of the following protocols: no adhesive system + photoactivation of the sealant using continuous ligh...