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Approximal caries development in surfaces in contact with fluoride‐releasing and non‐fluoride‐releasing restorative materials: an in situ study
Author(s) -
Len Áine M.,
Wiegand Annette,
Buchalla Wolfgang,
Attin Thomas
Publication year - 2007
Publication title -
european journal of oral sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.802
H-Index - 93
eISSN - 1600-0722
pISSN - 0909-8836
DOI - 10.1111/j.1600-0722.2007.00495.x
Subject(s) - enamel paint , dentistry , fluoride , chemistry , materials science , medicine , inorganic chemistry
This study investigated the effect of compomer on initial interproximal caries development. One‐hundred and sixty cylindrical, and 40 semispherical, bovine enamel samples (control) were prepared, polished, and sterilized. Sixty semicircular samples were prepared from each of the compomer Dyract eXtra and the fluoride‐free composite Spectrum TPH. Samples were stored in water and fluoridated twice daily for 28 d. A baseline quantitative light fluorescence (QLF) image was made of each cylindrical sample. Twenty volunteers received intra‐oral appliances with eight sample chambers. Each wing contained 1 control sample and either 3 Dyract eXtra or 3 Spectrum TPH samples in contact with the enamel surface of a cylindrical enamel sample. Appliances were worn for 24 h a day for 28 d except during toothbrushing (twice daily) and placement in 10% sucrose solution (five times daily). A final QLF image was made after 28 d. Caries development was analyzed as the lesion area × mean fluorescence loss (ΔQ % mm 2 ) between these and the baseline images using QLF subtract software. The median ΔQ was significantly lower in the Dyract eXtra group (−6.1% mm 2 ) than in the Spectrum TPH (−13.9% mm 2 , P ≤ 0.001) or control (−11.4% mm 2 , P = 0.03) groups. Teeth in contact with the compomer developed less caries compared with controls.