Formation of inhibition layers with a newly developed fluoride-releasing all-in-one adhesive.
This study evaluated the capability of a novel fluoride-releasing, all-in-one adhesive system on forming inhibition layer (radio-opaque layer) as compared with other adhesive systems. Dentin surface was treated with Imperva bond (IB), FL-BOND (FB), Reactmer bond (RE), or FL-BOND S-1 (FS) (which is a novel system). Untreated specimens were categorized as nonbonding group (NB). After storing for 10 days in de-ionized water, the specimens were cut into halves perpendicularly to the pulp chamber and immersed in a buffered demineralizing solution for four days. Longitudinal sections were cut and microradiographed. The width of inhibition layers adjacent to the adhesive surface--at a depth of 50 microm under the demineralization surface--was analyzed. Microradiography revealed distinct inhibition layers adjacent to the experimental surfaces of FB, RE, and FS. No inhibition layers were observed in NB and IB. In particular, the width of the inhibition layer of FS (12.5 microm) was significantly greater than those of FB and RE. These results indicated that a newly developed all-in-one adhesive system, FS, may have a superior ability of forming inhibition layers adjacent to cavity walls, and that it may also protect dentin against further demineralization in case of secondary marginal caries.
Mukai
Yoshiharu
Y
Department of Dental Medicine, Division of Operative Dentistry and Endodontics, Kanagawa Dental College, 82 Inaoka-cho, Yokosuka, Kanagawa 238-8580, Japan. mukaiyos@kdcnet.ac.jp
Tomiyama
Kiyoshi
K
Shiiya
Toru
T
Kamijo
Kazuko
K
Fujino
Fukue
F
Teranaka
Toshio
T
D000269:Adhesives; D000704:Analysis of Variance; D000818:Animals; D002327:Cariostatic Agents / Q000008:administration & dosage*; D002417:Cattle; D017220:Dentin-Bonding Agents; D005460:Fluorides, Topical / Q000008:administration & dosage*; D005899:Glass Ionomer Cements; D008422:Materials Testing; D008852:Microradiography; D019279:Resin Cements; D017001:Tooth Demineralization / Q000517:prevention & control*
D000269:Adhesives; D002327:Cariostatic Agents; D017220:Dentin-Bonding Agents; C503681:FL-BOND S-1; D005460:Fluorides, Topical; D005899:Glass Ionomer Cements; C074806:Imperva-Bond; D019279:Resin Cements; C474103:imperva fluoro bond; C447779:reactmer bond