Premium
Treatment of dentin with stannous fluoride – SEM and electron microprobe study
Author(s) -
ELLINGSEN JAN EIRIK,
RÖLLA GUNNAR
Publication year - 1987
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.1600-0722.1987.tb01843.x
Subject(s) - dentin , fluoride , electron microprobe , tin , dentinal tubule , chemistry , scanning electron microscope , dentin hypersensitivity , smear layer , nuclear chemistry , microprobe , dentistry , materials science , mineralogy , inorganic chemistry , composite material , organic chemistry , medicine
– The effect of SnF 2 ‐treatment of dentin surfaces was investigated by means of scanning electron microscopy (SEM) and electron microprobe analysis. Human dentin was treated with aqueous SnF 2 solutions of concentrations varying from 1 to 10%. The treatment periods lasted for 1, 5, 10, or 60 min. Both tin and fluoride were identified on the surfaces. The concentration varied depending on the extensiveness of the treatment. Immersion in 1 M KOH for 15 h removed both tin and fluoride from the surfaces. This reaction was not observed after immersion in H 2 O for the same time period. Examination of the SnF 2 ‐treated dentin surfaces showed a dense layer of globular particles and in addition some larger particles. The dentinal tubules were totally covered even after the treatment with the lowest concentration of SnF 2 . Deposition of tin‐ and fluoride‐coniaining globules on dentin surfaces may be of clinical interest. This layer may have importance both for the caries resistance of dentin and for hypersensitivity reactions.