Results 321 to 330 of about 773,041 (378)
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American Journal of Hypertension, 2022
BACKGROUND Poor oral health evaluated by presence of dental calculus has been associated with hypertension (HTN) among middle- and old-aged adults.
Kun-Zhe Tsai +7 more
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BACKGROUND Poor oral health evaluated by presence of dental calculus has been associated with hypertension (HTN) among middle- and old-aged adults.
Kun-Zhe Tsai +7 more
semanticscholar +1 more source
Radiographic Detection of Dental Calculus [PDF]
Journal of Periodontology, 1987 To determine the sensitivity and specificity of the radiographic detection of calculus, 275 proximal tooth surfaces from 18 patients were evaluated. Standardized periapical radiographs obtained before extraction were coded, batch processed, and evaluated independently by two investigators under optimum viewing conditions.
M. A. Granet +5 more
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The Journal of Periodontology, 2021
BACKGROUND Periodontitis is an inflammatory disease initiated by dental deposits. Microorganisms in the dental biofilm induce cell death in epithelial cells, contributing to the breakdown of epithelial barrier function. Recently, dental calculus has also
S. Ziauddin +7 more
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BACKGROUND Periodontitis is an inflammatory disease initiated by dental deposits. Microorganisms in the dental biofilm induce cell death in epithelial cells, contributing to the breakdown of epithelial barrier function. Recently, dental calculus has also
S. Ziauddin +7 more
semanticscholar +1 more source
Oral Surgery, Oral Medicine, Oral Pathology, 1960
Abstract Samples of dental calculus from twenty-seven patients were examined microradiographically and analyzed by x-ray crytallography. The location of the deposit was supragingival in fifteen cases and subgingival in twelve. Chemical analysis of concrements revealed that the calculus of both types consisted, in the majority of cases, of apatite ...
Arne Forsberg +2 more
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Abstract Samples of dental calculus from twenty-seven patients were examined microradiographically and analyzed by x-ray crytallography. The location of the deposit was supragingival in fifteen cases and subgingival in twelve. Chemical analysis of concrements revealed that the calculus of both types consisted, in the majority of cases, of apatite ...
Arne Forsberg +2 more
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Electronmicroscopy of Dental Calculus
Science, 1960Electron microscopy of ultrathin osmium-fixed sections of dental calculus, cut with a diamond knife without prior decalcification, revealed densely mineralized areas entrapping many degenerating microorganisms, within which were deposited similarly electron-dense crystals.
Reidar F. Sognnaes, F. Gonzales
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Formation and Inhibition of Dental Calculus
Journal of Periodontology-Periodontics, 1969Indeed there has been an " i n f o r m a t i o n exp los ion" i n this f ield, as the author suggests, and it is grati fying to see the fragments being put i n their places. T h i s book cr i t i ca l ly analyzes over 6 0 0 works o n the epidemiology, physiology and c l in i ca l significance of calculus ; its dis t r ibut ion , chemistry ...
Diarmuid Shanley, Hubert E. Schroeder
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Fluorescence detection of dental calculus [PDF]
Laser Physics Letters, 2010 This work is devoted to the optimization of fluorescence dental calculus diagnostics in optical spectrum. The optimal wavelengths for fluorescence excitation and registration are determined. Two spectral ranges 620 – 645 nm and 340 – 370 nm are the most convenient for supra- and subgingival calculus determination.
S A Gonchukov +3 more
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Dentinal Lesions in Dogs with Dental Calculus
Journal of Comparative Pathology, 2021Histopathological changes in tooth structures in dogs with calculus have not been described. The aim of this study was to evaluate the frequency of various histopathological changes in the dentine of teeth that had been surgically extracted from dogs with calculus.
Gabriela S.M. Assunção +3 more
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Aspirated dental calculus in a dog
Journal of the American Veterinary Medical Association, 1992Aspiration of a dental calculus, with lodgement of the calculus in a mainstem bronchus, was identified in a dog after dental prophylaxis. The calculus was located by use of radiography and bronchoscopy, and was removed via thoracotomy. Aspiration is a possible complication of dental prophylaxis.
K L, Gibson, C S, Hedlund
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Raman Spectra of Human Dental Calculus
Journal of Dental Research, 1993Raman spectra of human dental calculus have been observed for the first time by use of micro-Raman spectroscopy. The spectral features of calculus were influenced easily by heating caused by laser irradiation. Therefore, the measurements were carried out at relatively low power (5 mW, 1-μm spot size).
H. Tsuda, J. Arends
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