The effect of dentifrice including dental type silica, tocopherol acetate, sodium fluoride and sodium pyrophosphate on mineral density in enamel

An enzyme capable of liberating H2S from l-cysteine in vitro (cysteine desulphydrase) is present in insect tissues. The clothes moth (Tineola bisselliella Humm.) has a highly active desulphydrase apparently concentrated in the gut, whilst some other insects have little or no activity. Aqueous enzyme solutions from insects are unstable, their optimum pH ranges between pH 7�8 and 8�9, they are inhibited by NaCl and KN03 (both at 0�42M), and Asps, NaHS03 , and phenylhydrazine (all at 10-2M), but they are not affected by semicarbazide, thiourea, sodium pyrophosphate, or sodium fluoride (all at 1O-2M). KCN (10- 2M) activates clothes moth preparations, has no effect on those of carpet beetle, and inhibits some other insect enzymes.

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Increase of bone mineral density with sodium fluoride in patients with Crohn's disease

Gastroenterology ◽

10.1016/s0016-5085(98)84519-8 ◽

1998 ◽

Vol 114 ◽

pp. A1112

Author(s):

C.v. Tirpitz ◽

J. Klaus ◽

J. Brückel ◽

A. Rieber ◽

B.O. Böhm ◽

...

Keyword(s):

Bone Mineral Density ◽

Crohn’S Disease ◽

Crohn's Disease ◽

Bone Mineral ◽

Sodium Fluoride ◽

Mineral Density

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Effect of Silver Diamine Fluoride and Sodium Fluoride Varnish on Remineralization in Artificially Induced Enamel Caries: An in vitro Study

THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY ◽

10.5933/jkapd.2020.47.3.266 ◽

2020 ◽

Vol 47 (3) ◽

pp. 266-276 ◽

Cited By ~ 1

Author(s):

Soyoung Kim ◽

Sangho Lee ◽

Nanyoung Lee ◽

Myeongkwan Jih

Keyword(s):

Sodium Fluoride ◽

Artificial Saliva ◽

Hounsfield Unit ◽

In Vitro Study ◽

Enamel Surface ◽

Mineral Density ◽

Silver Diamine Fluoride ◽

Tooth Structure ◽

Demineralized Enamel

The purpose of this study was to compare the remineralization effect of 38% silver diamine fluoride (SDF) and 5% sodium fluoride (NaF) varnish on artificially induced enamel caries.The present study standardized the physiochemical characteristics of the tooth structure using bovine teeth, realized the wash-off action of agents using a saliva, reproduced an environment similar to mouth through pH-cycling, and comparatively assessed the remineralization effect of 38% SDF and 5% NaF varnish in a non-destructive method using micro-CT. And the remineralized enamel surface structure was analyzed by scanning electron microscopy (SEM) and energy dispersive X-Ray spectroscopy (EDS).In both SDF and NaF varnish, mineral density (△Hounsfield unit value) and the volume of enamel restored to normal mineral density through remineralization gradually increased with time. And the SDF showed a much higher level of increase in mineral density at all depths and remineralized volume than NaF varnish.According to SEM analysis, the surface roughness decreased in the order of artificial saliva, NaF varnish and SDF. In addition, EDS analysis showed that silver ion was precipitated on the enamel surface in SDF group.In conclusion, SDF had a greater remineralization effect than NaF varnish on demineralized enamel.

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