منابع مشابه
Industrial Noise and Tooth Wear - Experimental Study
UNLABELLED Tooth wear is a complex multifactorial process that involves the loss of hard dental tissue. Parafunctional habits have been mentioned as a self-destructive process caused by stress, which results in hyperactivity of masticatory muscles. Stress manifests itself through teeth grinding, leading to progressive teeth wear. The effects of continuous exposure to industrial noise, a "stress...
متن کاملExperimental study of lead (II) removal using polymorphous silica adsorbents
Adsorption of lead(II) as a major heavy metal pollutant onto nano-adsorbents of Andalusite, Kyanite and Sillimanite was studied in a batch system. Nano-adsorbents were prepared via crushing, using a planetary ball mill and then characterized by different analyses such as: SEM, XRD, XRF and FT-IR. Major factors affecting the adsorption process were studied including pH, adsorbents dosage, initi...
متن کاملTooth mobility and periodontal therapy.
Data collected as part of an 8-year longitudinal study on periodontal therapy involving 82 patients and 1974 teeth were analyzed to determine if tooth mobility influenced the result of treatment. For each patient, pocket depth, attachment level and tooth mobility were scored clinically at the initial appointment, and once a year for 8 years following periodontal therapy. The treatment consisted...
متن کاملTooth Growth in Experimental Scurvy
1. The incisor teeth of guinea pigs have a constant rate of growth in health. 2. Deprivation of Vitamin C causes the teeth to cease growing. Readministration of the vitamin restores the growth. 3. Administration of small amounts of antiscorbutic substance results in rates of growth roughly proportional to dosage. 4. Under standard experimental conditions used in the testing of foodstuffs for an...
متن کاملExperimental and Computational Study on Hydrodynamic of a Downscaled Mini Vessel USP Dissolution Test Apparatus II
Although not listed on the United States Pharmacopeia (USP), like standard USP 2, small volume USP 2 dissolution apparatus has gained a great deal of attention, especially for cases where small amount of drug product is available for testing in research and design step or evaluations are to be made on a tablet containing trace amounts of the active pharmaceutical ingredient. In this work, first...
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ژورنال
عنوان ژورنال: THE JOURNAL OF THE STOMATOLOGICAL SOCIETY,JAPAN
سال: 1954
ISSN: 1884-5185,0300-9149
DOI: 10.5357/koubyou.21.108