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Evaluation by an Aeronautic Dentist on the Adverse Effects of a Six-Week Period of Microgravity on the Oral Cavity
Joint Authors
Kaur, Jasdeep
Rai, Balwant
Foing, Bernard H.
Source
International Journal of Dentistry
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-12-10
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
Objective.
HDT bed rest condition is a simulated microgravity condition in which subject lies on bed inclined −6 degree feet up.
To determine the influence of a simulated microgravity (HDT bed rest) on oral cavity, 10 healthy male volunteers were studied before, during, just after, and after 6 weeks of the simulated microgravity condition of −6° head-down-tilt (HDT) bed rest.
Materials and Methods.
Facial nerve function, facial sensation, chemosensory system, salivary biomarkers were measured.
Results.
Lactate dehydrogenase, MIP 1 alpha, malonaldehyde, 8-hydroxydeoxyguanosine, and thiocyanate were found to increase significantly, while flow rate, sodium, potassium, calcium, phosphate, protein, amylase activity, vitamin E and C, and mouth opening were decreased in simulation environments in contradiction to normal.
The threshold for monosodium glutamate (MSG) and capsaicin increased during microgravity as compared to normal conditions.
Moderate pain of teeth, facial oedema, mild pain, loss of sensation of pain and temperature, decreased tongue, and mandibular movement in simulation microgravity environments were observed.
Conclusions.
These results suggest that reversible effect of microgravity is oedema of face, change in taste, abnormal expression of face, teeth pain, and xerostomia.
Further study will be required on large scale on long-term effects of microgravity on oral cavity to prevent the adverse effects.
American Psychological Association (APA)
Rai, Balwant& Kaur, Jasdeep& Foing, Bernard H.. 2011. Evaluation by an Aeronautic Dentist on the Adverse Effects of a Six-Week Period of Microgravity on the Oral Cavity. International Journal of Dentistry،Vol. 2011, no. 2011, pp.1-5.
https://search.emarefa.net/detail/BIM-480511
Modern Language Association (MLA)
Rai, Balwant…[et al.]. Evaluation by an Aeronautic Dentist on the Adverse Effects of a Six-Week Period of Microgravity on the Oral Cavity. International Journal of Dentistry No. 2011 (2011), pp.1-5.
https://search.emarefa.net/detail/BIM-480511
American Medical Association (AMA)
Rai, Balwant& Kaur, Jasdeep& Foing, Bernard H.. Evaluation by an Aeronautic Dentist on the Adverse Effects of a Six-Week Period of Microgravity on the Oral Cavity. International Journal of Dentistry. 2011. Vol. 2011, no. 2011, pp.1-5.
https://search.emarefa.net/detail/BIM-480511
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-480511