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A laboratory study of glass ionomer cement as a retrograde root‐filling material
Author(s) -
Roth Stephan
Publication year - 1991
Publication title -
australian dental journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.701
H-Index - 71
eISSN - 1834-7819
pISSN - 0045-0421
DOI - 10.1111/j.1834-7819.1991.tb01362.x
Subject(s) - glass ionomer cement , cement , dental cement , dentistry , materials science , composite material , medicine , adhesive , layer (electronics)
Abstract This laboratory study investigated the use of various glass ionomer cements for retrograde root filling from the point of view of sealing qualities, ion release and ease of application. The sealing qualities of the material were tested by dye penetration and microscopic and SEM examination. Fluoride and silver ion release tests showed an initial loss of these two ions from the glass ionomer cement. A modified system for mixing and application was developed. Dye penetration did not differ from that of controls using vertically condensed gutta‐percha. Glass ionomer cement is possibly a clinical alternative for the sealing of retrograde cavities; however, the silver‐reinforced materials may cause tissue irritation from release of silver ions and their corrosion products.