An adhesive for sealing of composite resins: an in vivo and in vitro investigation
Date
1973
DOI
Authors
Kun, William B.
Version
OA Version
Citation
Abstract
The ability of an adhesive sealant to eliminate microleakage and enhance the esthetic quality of Class V composite resin restorations was investigated. In order to determine the adhesive properties of
the sealant in vivo, 57 permanent teeth were restored with co11111ercially
available composite resins and covered with a thin layer of the sealant,
extending 1\-2 mm on surrounding conditioned enamel. Clinical
assessments were conducted over a period of 12 months and were supplemented
with scanning electron micrographs from in vivo obtained
replicas. After one year it was observed that 78.4 percent of the
original specimens were totally covered with the sealant. In vitro
experimentation revealed that basic fuchsin dye did not penetrate
the adhesive layer and that the sealant was successful in eliminating
microleakage after having been exposed to the oral environment for
one year. Those composite restorations which received no adhesive
layer displayed marked marginal leakage as evidenced by penetration
of the dye beyond the dentoeriamel junction and directed along the
dentinal tubules. Scanning electron micrographs demonstrated the intimate
relationships between adhesive and enamel as well as that of
adhesive and restoration. Mechanical retention derived from penetration
of the adhesive into pores on the conditioned enamel surface and
interlocking of the sealant with exposed filler particles of the
composite contributed to the adhesive properties.
Description
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Thesis (M.Sc.D.)--Boston University School of Graduate Dentistry, 1973. Pedodontics.
Bibliography included.
Thesis (M.Sc.D.)--Boston University School of Graduate Dentistry, 1973. Pedodontics.
Bibliography included.
License
This work is protected by copyright. Downloading is restricted to the BU community. If you are the author of this work and would like to make it publicly available, please contact open-help@bu.edu.