Results 261 to 270 of about 635,401 (314)

Incremental lines of dental cementum in biological age estimation

HOMO, 2001
The aim of this study is to evaluate the use of counting incremental lines of dental root cementum for biological age determination, and to compare it with alternative methods. Two samples were taken: 51 teeth from 49 individuals of known age obtained at the Stomatological Clinic, Vilnius University, as well as the canine teeth from the remains of 48 ...
R, Jankauskas, S, Barakauskas, R, Bojarun   +2 more
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Dental anatomy and coronal cementum in the Mongolian gerbil

Journal of Periodontal Research, 1970
The embryogenesis and morphologic characteristics of the teeth and supporting structures of the Mongolian gerbil were studied in animals ranging in age from ten days to five years. Three molar teeth are present in each quadrant and consist of three, two, and one lobe respectively. The occlusal surfaces are flat and devoid of enamel.
B H, Wasserman, B S, Moskow, M C, Rennert   +2 more
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Fluoride concentration of dental calculus, surface enamel and cementum

Archives of Oral Biology, 1963
Abstract Fluoride concentrations were determined in samples of cementum, surface enamel, supra- and sub-gingival calculus of ninety-one permanent human teeth. The cementum and surface enamel were removed by grinding from the root surfaces and peripheral enamel. The supra- and sub-gingival calculus were scaled off. Significant differences between the
J, YARDENI, I, GEDALIA, M, KOHN
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PIXE analysis of human dental cementum

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1984
Abstract The elemental composition of dental cementum, from teeth of children with ages between 11 and 14 years, has been determined using the well-established PIXE technique. This was carried out in situ, that is, without having to remove the cementum from the dental roots, and thus avoiding any contamination.
openaire   +1 more source

Severe Periodontitis May Influence Cementum and Dental Pulp Through Inflammation, Oxidative Stress and Apoptosis.

The Journal of Periodontology, 2019
BACKGROUND The relationship between chronic periodontitis and pulpal/cemental changes is seldom reported. This study aimed to report on the microstructural changes of cementum and histopathological features of the dental pulp in teeth with severe chronic
Xiangchun Li, Liang Hu, Linsha Ma, Shimin Chang, Weili Wang, Yuanyong Feng, Yipu Xu, J. Hu, Chunmei Zhang, Songlin Wang   +9 more
semanticscholar   +1 more source

Afibrillar dental cementum in the rat and hamster

Journal of Periodontal Research, 1975
Afibrillar cementum “spurs” have been observed as a direct coronal extension of fibrillar root cementum near the cemento‐enamel junction of rat molars. It was also present as a localized deposit over the dentin surface of a hamster mandibular molar near the bifurcation.
openaire   +2 more sources

Ti:sapphire femtosecond laser ablation of dental enamel, dentine, and cementum

Lasers in Medical Science, 2011
This paper reports an investigation into the characteristics of femtosecond laser (800-nm central wavelength) in the ablation of human dental enamel, dentine, and cementum at various laser fluences from 0.2 to 3.68 J/cm(2) with single and multiple pulses. The femtosecond laser interaction with cementum is reported for the first time.
Ji, Lingfei, Li, Lin, Devlin, Hugh, Liu, Zhu, Jiao, Jiao, Whitehead, David   +5 more
openaire   +2 more sources

Distribution of fluoride across human dental enamel, dentine and cementum

Archives of Oral Biology, 1987
This was determined across the entire width of sections from 20 mandibular premolars, containing enamel, coronal dentine, root dentine and cementum. An abrasive technique was used to sample all three dental tissues in a single experiment. In the profiles of fluoride distribution, fluoride concentration was thus precisely related to the position of the ...
H, Nakagaki, Y, Koyama, Y, Sakakibara, J A, Weatherell, C, Robinson   +4 more
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A microradiographic comparison of sound and carious human dental cementum

Archives of Oral Biology, 1968
Abstract The mineral distribution in sound and carious human acellular and cellular cementum was studied by microradiography of thin sections. Observations on the sound tissue confirmed the occurrence of alternating bands of high and low mineral content and also the formation of a densely mineralized layer at the external surface of cementum exposed ...
R, Furseth, E, Johansen
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Cementum matrix formation in vivo by cultured dental follicle cells

Bone, 2002
Dental follicle is the fibrous tissue that surrounds the developing tooth germ, and it is believed to contain progenitors for cementoblasts, periodontal ligament cells, and osteoblasts. In this study, we report the presence of cementoblast progenitors in cultures of bovine dental follicle cells and demonstrate their differentiation capacity.
K, Handa, M, Saito, M, Yamauchi, T, Kiyono, S, Sato, T, Teranaka, A, Sampath Narayanan   +6 more
openaire   +2 more sources