|
Sign In to gain access to subscriptions and/or personal tools.
|
Determination of the Rate of Release of Intra-oral Mercury Vapor from Amalgam
A. Berglund
Department of Dental Materials and Technology, Faculty of Odontology, University of UmeÅ, S-901 87 UmeÅ, Sweden
L. Pohl
Department of Dental Materials and Technology, Faculty of Odontology, University of UmeÅ, S-901 87 UmeÅ, Sweden
S. Olsson
Department of Dental Materials and Technology, Faculty of Odontology, University of UmeÅ, S-901 87 UmeÅ, Sweden
M. Bergman
Department of Dental Materials and Technology, Faculty of Odontology, University of UmeÅ, S-901 87 UmeÅ, Sweden
The experimental and analytical difficulties associated with the measurement of mercury vapor in the oral cavity are considerable. In the present paper, the objective was to measure the amount of intra-oral mercury vapor in subjects with amalgams, by means of two sets of equipment based on different functional principles. In addition, it was found that the type of mercury source prevalent in the oral cavity had to be evaluated. The measuring technique used to obtain correct results is discussed, and an evaluation of the conditions for the application of the measuring equipment available was made. It was found that the amount of mercury released from the oral cavity was time-dependent. Furthermore, the amount of mercury released with the time kept constant was almost independent of the pumping flow rate up to 8 L/min. It was found that the tissue, saliva, and the amalgam restorations were not depleted of mercury during the measuring time. The results of the Mercollector-Mercometer measurements carried out on seven subjects with nine or more occlusal surfaces restored with dental amalgam and on three subjects without any amalgam restorations revealed that the rate of mercury release was in the range 0.03-0.34 ng/sec in the former group and < 0.01 nglsec in the latter. Based on the experimental results and on theoretical considerations, it was concluded that the amount of mercury released per time unit is the only quantity measurable.
REFERENCES
- Guyton, A.C. (1981): Medical Physiology, 6th ed., Philadelphia: W.B. Saunders Co., p. 483.
- Mackert, J.R., Jr. (1987): Factors Affecting Estimation of Dental Amalgam Mercury Exposure from Measurements of Mercury Vapor Levels in Intra-oral and Expired Air, J Dent Res 66:1775-1780.[Abstract/Free Full Text]
- Olsson, S. and Bergman, M. (1987): Letter to the Editor, J Dent Res 66:1288-1289.[Free Full Text]
- Vimy, M.J. and Lorscheider, F.L. (1985a): Intra-oral Air Mercury Released from Dental Amalgam, J Dent Res 64:1069-1071.[Abstract/Free Full Text]
- Vimy, M.J. and Lorscheider, F.L. (1985b): Serial Measurements of Intra-oral Air Mercury: Estimation of Daily Dose from Dental Amalgam, J Dent Res 64:1072-1075.[Abstract/Free Full Text]
- Vimy, M.J. and Lorscheider, F.L. (1987): Letter to the Editor, J Dent Res 66:1289-1291.[Free Full Text]
- Vimy, M.J.; Luft, A.J.; and Lorscheider, F.L. (1986): Estimation of Mercury Body Burden from Dental Amalgam: Computer Simulation of a Metabolic Compartmental Model, J Dent Res 65: 1415-1419.[Abstract/Free Full Text]
- WHO (1976): Environmental Health Criteria 1: Mercury, Geneva: World Health Organization.
Journal of Dental Research, Vol. 67, No. 9,
1235-1242 (1988)
DOI: 10.1177/00220345880670091701
 CiteULike  Complore  Connotea  Del.icio.us  Digg  Reddit  Technorati  Twitter What's this?
This article has been cited by other articles:
|
|
|
|
 
S. K. Al-Salehi
Effects of Bleaching on Mercury Ion Release from Dental Amalgam
Journal of Dental Research,
March 1, 2009;
88(3):
239 - 243.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
H. W. ROBERTS, M. MAREK, J. C. KUEHNE, and J. C. RAGAIN
Disinfectants' effect on mercury release from amalgam
J Am Dent Assoc,
July 1, 2005;
136(7):
915 - 919.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
J. E. DODES
The amalgam controversy: An evidence-based analysis
J Am Dent Assoc,
March 1, 2001;
132(3):
348 - 356.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
J.R. Mackert Jr and A. Berglund
Mercury Exposure From Dental Amalgam Fillings: Absorbed Dose and the Potential for Adverse Health Effects
Critical Reviews in Oral Biology & Medicine,
January 1, 1997;
8(4):
410 - 436.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
E. Berdouses, T.K. Vaidyanathan, A. Dastane, C. Weisel, M. Houpt, and Z. Shey
Mercury Release from Dental Amalgams: An in vitro Study Under Controlled Chewing and Brushing in an Artificial Mouth
Journal of Dental Research,
May 1, 1995;
74(5):
1185 - 1193.
[Abstract]
[PDF]
|
|
|
|
|
|
|
S. Halbach
Combined Estimation of Mercury Species Released from Amalgam
Journal of Dental Research,
April 1, 1995;
74(4):
1103 - 1109.
[Abstract]
[PDF]
|
|
|
|
|
|
|
S. Olsson, A. Berglund, and M. Bergman
Release of Elements due to Electrochemical Corrosion of Dental Amalgam
Journal of Dental Research,
January 1, 1994;
73(1):
33 - 43.
[Abstract]
[PDF]
|
|
|
|
|
|
|
S. Halbach
Amalgam Tooth Fillings and Man's Mercury Burden
Human and Experimental Toxicology,
January 1, 1994;
13(7):
496 - 501.
[Abstract]
[PDF]
|
|
|
|
|
|
|
A. Berglund
An in vitro and in vivo Study of the Release of Mercury Vapor from Different Types of Amalgam Alloys
Journal of Dental Research,
May 1, 1993;
72(5):
939 - 946.
[Abstract]
[PDF]
|
|
|
|
|
|
|
S. Olsson and M. Bergman
Daily Dose Calculations from Measurements of Intra-oral Mercury Vapor
Journal of Dental Research,
February 1, 1992;
71(2):
414 - 423.
[Abstract]
[PDF]
|
|
|
|
|
|
|
S.-B. Chang, C. Siew, and S.E. Gruninger
Factors Affecting Blood Mercury Concentrations in Practicing Dentists
Journal of Dental Research,
January 1, 1992;
71(1):
66 - 74.
[Abstract]
[PDF]
|
|
|
|
|
|
|
A. Berglund
Letters to the Editor
Journal of Dental Research,
March 1, 1991;
70(3):
233 - 234.
[PDF]
|
|
|
|
|
|
|
J.R. Mackert Jr
Letter to the Editor
Journal of Dental Research,
March 1, 1991;
70(3):
234 - 237.
[PDF]
|
|
|
|
|
|
|
F.L. Lorscheider and M.J. Vimy
Letters to the Editor
Journal of Dental Research,
March 1, 1991;
70(3):
233 - 233.
[PDF]
|
|
|
|
|
|
|
A. Berglund
Estimation by a 24-hour Study of the Daily Dose of Intra-oral Mercury Vapor Inhaled after Release from Dental Amalgam
Journal of Dental Research,
October 1, 1990;
69(10):
1646 - 1651.
[Abstract]
[PDF]
|
|
|
|
|
|
|
M. Marek
The Release of Mercury from Dental Amalgam: The Mechanism and in vitro Testing
Journal of Dental Research,
May 1, 1990;
69(5):
1167 - 1174.
[Abstract]
[PDF]
|
|
|
|
|
|
|
S. Olsson, A. Berglund, L. Pohl, and M. Bergman
Model of Mercury Vapor Transport from Amalgam Restorations in the Oral Cavity
Journal of Dental Research,
March 1, 1989;
68(3):
504 - 508.
[Abstract]
[PDF]
|
|
|
|
|
