Results 241 to 250 of about 16,606 (302)
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Age Factor in Secondary Dentin Formation
Journal of Dental Research, 1966SYNOPSIS IN INTERLINGUA LE FACTOR DEL ETATE IN LE FORMATION DE DENTINA SECUNDARI.—Le examine microscopic de 273 permanente incisores supero-central sin grados marcate de carie o de attrition, extrahite ab grecos de cognoscite etates, revelava que post le "completion" del apice del radice regular dentina secundari esseva primo formate ...
G G, Philippas, E, Applebaum
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The early formation of irregular secondary dentine in progeria
Oral Surgery, Oral Medicine, Oral Pathology, 1969P rogeria, a rare childhood disorder, was first described by Hutchinson in 1885 and was given its name, which means prematurely old, by Gilford.2z 3 The syndrome, of unknown etiology, is characterized by dwarfism and premature senility. The affected persons resemble each other closely and exhibit almost complete alopecia, a high-pitched squeaky voice ...
D G, Gardner, M, Majka
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Comparative Study of the Composition of Primary and Secondary Dentine
Caries Research, 2009There is considerable variation in the composition of primary and secondary dentine. In general, secondary deposits, regardless of type, contain less calcium, phosphorous, and collagenous matrix per unit volume when compared to primary dentine. Fluoride levels show the reverse tendency.
P C, Foreman, J V, Soames
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Secondary dentin in replanted teeth — a histometric study
Dental Traumatology, 1990Abstract To quantify the secondary dentin formation in replanted teeth, 16 human premolars with a postoperative observation period of 6, 12 and 24 weeks were studied histometrically. In spite of marked intra‐ and interindividual variations, a regression analysis revealed a significant correlation (r=0.70) between observation time and the quantity of ...
M, Breivik, E, Kvam
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Amount of secondary dentin as an indicator of age
European Journal of Oral Sciences, 1992The amount of secondary dentin in a tooth has been used as one of several parameters in methods for age estimation. Dentin deposition has been measured according to various scoring systems, and the Pearson correlation coefficient with age has been found to be approximately 0.6.
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The Formation of Secondary Dentin and Related Problems
Journal of Dental Research, 1946It is generally believed that the formation of secondary dentin under fillings, caries and other forms of exposure of dentin is caused by stimuli which reach the pulp through the dentinal fibrils. It is known that the odontoblasts do not form dentin.
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Secondary Caries in Dentine around Composites: A Wavelength-Independent Microradiographical Study
Caries Research, 2009Composite restorations are prone to develop secondary caries if a gap exists between tissue and restoration. The aim of this article was to quantify the effects of a fluoridating and non-F composite on secondary dentine caries in vitro as a function of time.
Dijkman, GEHM +2 more
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The study of human dentine with secondary ion microscopy and electron diffraction
Calcified Tissue Research, 1975The highly polished surface of serial transverse ground sections of human coronal dentine were coated under vacuum with an aluminium grid and studied with a SMI 300 ion microanalyser (Cameca, Paris) based on mass spectrography. Secondary ion microscopy demonstrated a qualitative distribution of calcium, phosphorus, magnesium, sodium and potassium.
R, Lefèvre, R M, Frank, J C, Voegel
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Rate of formation of regular and irregular secondary dentin in monkey teeth
Oral Surgery, Oral Medicine, Oral Pathology, 1982An in vivo hard-tissue labeling technique was used to study the formation of regular and irregular secondary dentin in thirty-one monkey teeth. The formation of regular secondary dentin averaged 0.8 micrometer per day. No difference was found in the rate of formation of regular secondary dentin and irregular secondary dentin associated with attrition ...
A, Wennberg, I A, Mjör, S, Heide
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An in vitro Study of Affected Dentin as a Risk Factor for the Development of Secondary Caries
Caries Research, 2005The objective of the study was to investigate the association between the presence of residual caries (inner affected dentin) on the cavity walls of cavity preparations and the further development of secondary caries lesions. Two 2 × 5 × 2 mm cavities, one in the apical portion (A) and one in the cervical portion (C) of the root, were prepared on both ...
Dariusz, Borczyk +2 more
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