This study aimed to investigate the surface zones of acidic fluoride-treated enamel. Human teeth were each divided into three or four enamel specimens that were treated for 10 min with solutions of 0.2 and 0.4% HF (pH 3.09 and 2.94), 1.74% SnF2 (pH 2.9), 0.68% TiF4 (pH 1.6) and 0.84% NaF (pH 4.5). Untreated specimens functioned as negative controls. The microstructure and elemental composition of the surface zones were studied by scanning electron microscopy/energy-dispersive X-ray (EDX) analysis, transmission electron microscopy (TEM) and nanospot-EDX following cross-sectional preparation using focused ion beam technology. TEM/EDX analyses of NaF-treated specimens showed a 500-nm-thick closed surface film containing 20-40 at% (atomic percent) F. HF-treated specimens had a distinct surface…
MedWorm: Dentistry
A Descriptive in vitro Electron Microscopic Study of Acidic Fluoride-Treated Enamel: Potential Anti-Erosion Effects
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– November 7, 2015
Prosthodontist directory launched for Austin Texas
Prosthodontics is one of the nine dental specialties recognized by the American Dental Association . Graduate programs in prosthodontics are three years in length and include classroom lectures and seminars, laboratory and clinical training in esthetics/cosmetics, crowns, bridges, veneers, inlays, complete and removable partial dentures, dental implants, TMD-jaw joint problems, traumatic injuries to the mouth’s structures, congenital or birth anomalies to teeth, snoring, sleep disorders, and oral cancer reconstruction and continuing care.
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– November 7, 2015
Clinical trial examines oral cancer prevention
Oral premalignant lesions (OPLs) are considered risk factors for the development of oral cancer. In an article published online by JAMA Oncology, William N. William Jr., M.D.
Dentistry News From Medical News Today
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– November 7, 2015
Union Dental S.A.
LMTmag.com is an online social blog and network dedicated exclusively for members of the Dental Laboratory community. Join free to connect with Union Dental S.A. .
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– November 6, 2015
Comparison of two electronic apex locators on human cadavers
Conclusions Both apex locators showed a high accuracy in the presence or not of SH. Clinical relevance Both electronic apex locators can be recommended for clinical use and their accuracy is not affected by SH. (Source: Clinical Oral Investigations)
MedWorm: Dentistry
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– November 5, 2015
Aspen Dental to open Thursday
Aspen Dental will open in Russellville on Thursday. Located at 331 Weir Road, the practice will provide dental services that range from dentures and preventive care to general dentistry and restoration.
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– November 5, 2015
Jean Rostand
“My pessimism extends to the point of even suspecting the sincerity of the pessimists.”
Quotes of the Day
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– November 4, 2015
Inhibitory Effects of Zinc Ions on Enamel Demineralisation Kinetics in vitro
In conclusion, SMR demonstrated the ability of Zn2+ to reduce the rate of enamel demineralisation under real-time in vitro acid conditions simulating dental caries. The results suggest that Zn2+ in the oral fluids could protect against enamel demineralisation during an acidic challenge. The log-linear relationship between [Zn2+] and demineralisation suggests that the reduction in enamel dissolution is limited by the saturation of surface sites on the enamel surface.Caries Res 2015;49:600-605 (Source: Caries Research)
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– November 4, 2015
Paula Mann
LMTmag.com is an online social blog and network dedicated exclusively for members of the Dental Laboratory community. Join free to connect with Paula.
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– November 4, 2015
