BACKGROUND The success of pit and fissure sealants is directly related to their retention. The purpose of this study was to assess and compare the retention of pit and fissure sealants placed using acid etch alone and a combination of air abrasion and acid etch techniques. MATERIAL AND METHODS 50 subjects aged 6-8 years were included in the study. Primary second molars and permanent first mol...

Sealants have become an important vehicle for preventing pit and fissure caries. 1 Dentists have increased their use of sealants, 2-4 yet the percentage of children who receive this service is still rather small. 5, 6 This study explores the charges for dental sealants and onesurface, permanent posterior restorations for each state over a three-year period. This information will be useful for c...

We examined the light transmittance characteristics and refractive indices of light-activated pit and fissure sealants. Five commercial pit and fissure sealants and human enamel were studied, along with the CIE L*a*b* color values of the materials and enamel. The light transmittance spectra of the pit and fissure sealants showed a similar trend to the enamel, especially at wavelengths below 530...

In Germany, the application of resin-based pits and fissures sealants on the occlusal surfaces of permanent molars is part of individual prophylaxis for children and adolescents between six and 18 years. The individual prophylaxis is covered by the Statutory Health Insurance since 1993. The report addresses questions on medical effectiveness, cost-effectiveness, as well as ethical, social, and ...

AN ANAL FISSURE is ai1 ulcer of t h e a n a l canal which may extend from the anal verge to the dentate line. It is usually exquisitely painful, so the best treatment is that which is the most expedient but also provides negli#ble recurrence and minimal disability of anal function. Lateral subcutaneous internal anal sphincterotomy best fulfills these criteria and we strongly recommend it as the...

The unusual sensitivity and attraction to auditory stimuli in people with Williams syndrome (WS) has been hypothesized to be the consequence of atypical development of brain regions surrounding the Sylvian fissure. Planum temporale surface area, which is determined in part by Sylvian fissure patterning, was examined in 42 WS and 40 control participants to determine if anomalous Sylvian fissure ...