Pereira A C, Pardi V, Mialhe F L, Meneghim M C, Basting R T, Werner C W
Department of Community Dentistry, School of Dentistry, University of Campinas, Piracicaba, São Paulo, Brazil.
Am J Dent. 2000 Dec;13(6):294-6.
To evaluate the incidence of occlusal caries and the rates of retention using Variglass VLC (polyacid-modified resin) as an occlusal sealant.
The sample consisted of 185 school children (6-8 yr-old), with sound unsealed permanent first molars. Sealants were applied on the upper and lower first molars from a randomly chosen hemiarch (N=370 teeth). The follow-up was conducted at 6, 12 and 48 months examining 343 (93%), 290 (78%) and 187 (51%) teeth, respectively.
After 48 months, total retention of the material was noted in only 5% of the teeth. The presence of sealant in 2/3 and 1/3 of the pit extension was verified in 8% and 14% of the teeth, respectively, while 73% of the sealed teeth had no sealant present on the occlusal surface. Caries incidence, measured by the presence of dental caries and restorations, was 16% representing an annual increase of 4%.
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