Publications by authors named "Mignon H"

The Phase Doppler Anemometer (PDA) technique measures particle diameter assuming sphericity. A means for detecting nonsphericity has usually been implemented in commercial PDA systems to avoid sizing errors if the sphericity assumption is not valid. In the present research the response of standard and planar PDA systems is examined experimentally in more detail by passing nonspherical droplets of known shape through the measurement volume.

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Light scattering from cylindrical particles has been described with geometric optics. The feasibility of determining the particle diameter with a planar phase Doppler anemometer has been examined by simulations and experiments. In particular, the influence of particle orientation on measurability and measurement accuracy has been investigated.

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Pain after extraction of two antagonistic third molars was chosen to compare the analgesic effects of single doses of naproxen-sodium (825 mg) and paracetamol (1 000 mg). 124 patients of both sexes, aged from 14 to 41 years, took part in the trial which was of the double blind double dummy type with randomization into one or the other treatment. In all, 89 patients were acceptable for inclusion and followed the protocol correctly.

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The use of a 1% fluore gel, for ten minutes every day during the irradiation period and after that twice a week, constitutes an excellent protection for the good teeth located in the Tele-Coblat irradiation area. This will avoid the systematic ablation of the good teeth.

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After a brief account of the history and pathogeny, two cases are described of sub-angiomal bone hypo and hypertrophy. Other cases in the literature are recalled. Finally, a differential diagnosis is given.

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