List of Articles by MeSH
ELECTROMAGNETIC FIELDS
- Buković D, Carek V, Keros J. Measurement of the Magnetic Field in Dental Laboratories. Acta Stomatol Croat. 2002;36(4):425-31.
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| Title in English: |
Measurement of the Magnetic Field in Dental Laboratories |
| Title in Croatian: |
Mjerenje magnetnoga polja u zubnim laboratorijima |
| Type of Article: |
original scientific paper |
| MeSH: |
ELECTROMAGNETIC FIELDS
MAGNETICS
LABORATORIES, DENTAL |
| Abstract: |
While efforts are being made by science to discover all aspects ofthe effects of the magnetic field on man, data on the use of magnets in dental medicine are few. Thus, the aim of this study was to measure the magnetic field in dental laboratories, and at the same time to exclude the direct component of the Earth’s magnetic field. A specially constructed device was used for measurement, consisting of two amplifiers and a low frequency filter, by which the mean square of the value of the field was measured, depending on the position of the object in the area. The results of the study show that the magnetic field decreases with distance from the source of radiation, and that newer apparatus emits a weaker magnetic field than older apparatus. |
- Buković D, Carek V, Keros J. Measurements of the Electromagnetic Field in Dentistry. Acta Stomatol Croat. 2002;36(3):351.
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| Title in English: |
Measurements of the Electromagnetic Field in Dentistry |
| Title in Croatian: |
nema |
| Type of Article: |
congress abstract |
| MeSH: |
ELECTROMAGNETIC FIELDS
MAGNETICS
DENTAL EQUIPMENT |
| Abstract: |
The aim of this study was to measure the magnetic field in dentistry together with simultaneous substraction of direct ground component of the magnetic field. The research instrument used to measure the power of the magnetic field was of our own design. It measures themagnetic field by the Hall sensor that is powered with 5 to 10 V and is integrated in one chip together with preamplifier. The sensor output is differential (Q1-Q2) and proportionate to measurement values of magnetic induction. As the values of alternate fields in a laboratory setting are small the differential output voltage should beincreased by about 100 times. Our study samples consisted of instruments currently available in dentistry: halogen lamps, polymerizing lamps, amalgam mixers, micromotors and dental chairs. On the basis of our study results and statistical analysis the following conclusions are made magnetic field spreads through space in ISOTROPIC manner. The greatest frequency obtained at the smallest distance was 100 kHz. The sensitivity of the measurementinstrument was 0.0001 μT and the majority of instruments produce magnetic radiation higher than 4o G. The power of the magnetic field decreases with increasing distance from the source. The investigated instruments produce a relatively mild magnetic field. The instruments with stronger magnetic fields are located far enough from the persons on whom they act. The newly produced instrument acts on their environment by smaller magnetic fields. |
- Carek V, Jerolimov V. Djelovanje magnetskog polja u stomatološkoj ordinaciji [in Croatian]. Acta Stomatol Croat. 1998;32(Suppl):160-1.
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