Oral Potential Meter

The measurement of natural electric potential inside the mouth caused by dental amalgam filling and its influence upon the tissue of the tooth by Akira Shimomura J. Osaka Gynecological Society Vol. 21
(No. 5) Nov 25 1958 ( The fist Dept. of Anatomy, Osaka dental college Chief of the Dept., Senior Prof. Mikio Shirasu.)
Transferred from amalgams per second, Dr. James Masi Ph.D.
An inference regarding the ion exchange, anodic and cathodic regopm_ref_daions, and possible excessive galvanic effects can be made simply as follows:
Polarity indicates cathode vs. anode voltage gives the magnitude (driving potential) for the electroc-chemical reaction: and current gives the number of ions per second transferred eg. Hg vs. Au, is positive, approximately 0.4 volts, with respect to Hg, at 10 microamperes (typical of measured values using this method). I is the current ampers (Coulombs/second) q is the electronic charge (coulombs), n is the valence of the of the species (eg. Hg), then N= Inq (eq.3) or N=10X10 to the 5th / (2x 1.6 x 10 to the – 19th) = 3 12 x 10 to the 13th ions/sec., assuming Hg is available in an electrolytic environment. Further calculations lead to removal of approximately 10 ng/sec. for a constant current as measured.Measurements made on the saliva of thirty subjects wopm_ref_eaith mixed metals in the mouth (eg. Combinations of one or more pairs of orthodontic stainless steel, amalgams, gold inlays, titanium post, base metal post, graphite composite posts, etc.) were made by A. A. S. , stripping utilized the infection atomized species into a flame with the attendant absorption (from an Hg discharge lamp, for example) or emission from th flame of certain wavelengths characteristic of the metal to be detected. The basis of this work utilized both FAAS and GFAAS with detection limits of 0.3 to 1 micro gram/ L, dependent on whether or not gold amalgamation concentration techniques (16) were used. A second method involves a slightly less expensive gold film techniques call differential pulse Anodic Stripping Voltammetry (17). with detection capabilities down to 1ppb (1pg/L).A third, less expensive method for detection in vivo is a potential / current/energy meter, which measures the potential, current, and energy between two metallic restorations. Picture shows radio active mercury ions released into the tissue of a monkey from amalgams placed in the occlusals surfaces of the molar teeth.Click here: For more documented references on subject
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