Arresting occlusal enamel caries lesions with pit and fissure sealants The aim of this study was to evaluate the feasibility of pit and fissure sealants and the effectiveness of the two sealant methods applied in every-day practice in public dental health care in Finland. Two sealant methods were evaluated according to their effectiveness in preventing dentin caries at occlusal surfaces and sea...

PURPOSE Reports from most industrialized countries suggest that dental caries in children has been declining over the last 50 years. However, this trend may be reversing, especially in younger children. The aim of the present study was to compare caries levels and patterns of 3- and 4-year-old Head Start children observed in 1999 with those observed in 1991. METHODS Clinical dental caries dat...

The Bárðarbunga-Veiðivötn fissure eruption lasted from 31 August 2014 to 28 February 2015, during which its sulfur emissions dwarfed anthropogenic emissions from Europe. This natural experiment offers an excellent opportunity to investigate the aerosol indirect effect and the effect of effusive volcanic eruptions on climate. During the eruption cloud droplet effective radius (re) over the regio...

This study evaluated the effects of three modes of education on dentists' knowledge, attitudes, and use of pit and fissure sealants. A randomly selected group of dentists was invited to participate in a sealant education initiative. During a 12-month period, a total of 662 dentists either (1) attended continuing education courses, (2) received written materials and videotapes by mail, or (3) re...

This paper examines the evidence demonstrating the effectiveness of sealants in high-caries-risk children and discusses the Research Triangle Institute/University of North Carolina's (RTI/UNC) systematic review. The strict RTI/UNC protocol limited the number of sealant studies that could be included. This analysis expanded their criteria to permit additional methods of determining caries risk (...

In recent years, resin-based fluoridated sealants have been introduced, the fluoride intended as a cariespreventive ingredient. Studies of prophylaxis pastes containing glycerine or fluoride that attribute poor retention to an impervious layer produced by the fluoride and other ingredients 1, 2 have been discounted by Bogert and Garcia-Godoy3 and Koch et al. 4 using newer generations of bonding...

A CAT scan was recorded from 123 patients with left hemisphere damage from stroke. They were divided into four groups according to presence or absence of ideomotor apraxia and length of illness (15 to 90 days and over 90 days). The lesions were mapped and compared in the four experimental groups for anteroposterior dimension, lesion depth--deep-seated lesions deing separated from lesions with a...

OBJECTIVES No cost-effectiveness evaluation of pit and fissure sealants has ever been carried out in Quebec. The objective of this study was to simulate a publicly funded program of pit and fissure administration, either in the public or private sectors, and compare these hypothetical situations with the current one, i.e., a publicly funded, school-based selective program. METHODS A Markov mo...

AIM Aim of this study was the evaluation of the microhardness of 4 dental sealants polymerised with two different curing units. METHODS Twenty samples (5 x 5x 2 mm) were prepared with 4 different sealants; 10 samples for each group were polymerised with a plasma curing unit (Apollo 95 E DMD) and 10 with a halogen curing light (Heliolux DLX Vivadent ETS, Schaan, Liechtenstein). For each sectio...

BACKGROUND/AIM Retention of fissure sealants and good adaptation to enamel are essential for their success. Fluoride releasing resin-based materials are widely accepted for pit and fissure sealing, but newly designed glass ionomers can serve as a good alternative. The aim of this study was to evaluate microleakage and sealing ability in vitro, and to clinically assess two fluoride releasing fis...