Abstract:
:In this study the effect of X-ray irradiation on demineralization of bovine dental enamel in vitro was investigated. Enamel specimens were irradiated with 72 Gy and subsequently demineralized (140 h) under reproducible constant composition conditions at pH = 5 in the presence of methylhydroxydiphosphonate (MHDP). Microhardness measurements after demineralization without MHDP showed significant differences (p less than 0.001) between irradiated and nonirradiated enamel specimens; no significant differences were found in the presence of MHDP. Quantitative microradiography showed that both mineral loss and lesion depth were significantly lower (p less than 0.001) for the irradiated enamel specimens compared with the nonirradiated ones. Surface layer formation was observed in irradiated enamel demineralized in a solution without MHDP. It was shown that X-ray irradiation decreased the enamel acid solubility in vitro.
journal_name
Caries Resjournal_title
Caries researchauthors
Jansma J,Buskes JA,Vissink A,Mehta DM,Gravenmade EJdoi
10.1159/000261106subject
Has Abstractpub_date
1988-01-01 00:00:00pages
199-203issue
4eissn
0008-6568issn
1421-976Xjournal_volume
22pub_type
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