Results 221 to 230 of about 456,647 (264)
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Sonographic depiction of fetal tooth germs

Prenatal Diagnosis, 1995
AbstractRecently, sonography of the fetal face has gained increasing importance in prenatal diagnosis. It is not yet clear whether sonographic depiction of fetal tooth germs would have an influence on the prenatal diagnosis of ectodermal dysplasia syndromes.
M. R. Ulm   +5 more
openaire   +3 more sources

Dental trauma on primary teeth at different root resorption stages—A dynamic finite element impact analysis of the effect on the permanent tooth germ

Dental Traumatology, 2019
BACKGROUND/AIM Dental trauma is a common emergency in children with primary teeth. The aim of this study was to determine stress propagation to the permanent tooth germ and surrounding bone and soft tissues during dental trauma to primary central ...
A. B. F. Vilela   +6 more
semanticscholar   +1 more source

Acidic glycosaminoglucuronoglycans of human tooth germs

European Journal of Oral Sciences, 1973
abstract – The acidic glycosaminoglucuronoglycans in germs of primary teeth from three human fetuses have been isolated and identified. The biochemical analysis revealed the presence of hyaluronic acid and chondroitin‐4‐suIfate and/or chondroitin‐6‐sulfate while dermatan sulfate and heparan sulfate were not demonstrated.
M. E. Matthiessen, G. Helin
openaire   +3 more sources

Tooth Germ-Like Construct Transplantation for Whole-Tooth Regeneration: An In Vivo Study in the Miniature Pig.

Artificial Organs, 2016
The purpose of this study was to demonstrate the feasibility of whole-tooth regeneration using a tooth germ-like construct. Dental pulp from upper incisors, canines, premolars, and molars were extracted from sexually mature miniature pigs.
Kai-Chiang Yang   +5 more
semanticscholar   +1 more source

Fascin in tooth germs: an immunohistochemical analysis

Journal of Histotechnology, 2018
Development of a tooth is a complex process that involves three stages namely bud, cap andbell which results from the interaction of cells of the oral mucosa and neural crest. During this process, oral and neural crest cells undergo various changes resulting in proliferation, apoptosis,morphological, and cyto-differentiation, which in turn would have ...
Harishanker Alampally   +3 more
openaire   +2 more sources

Fluorine determination in hamster tooth germs

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1988
The delayed 52+ → 12+ nuclear transition of fluorine (Eγ = 197 keV, t12 = 87 ns) emitted after the 19F(p,p′ γ)19F reaction, has been used to measure the influence of fluoride administration on tooth development in vivo. The method used has the advantage of an improved peak to background ratio for the detection of fluorine if measurements are performed ...
D.M. Lyaruu   +4 more
openaire   +2 more sources

The effect of thymectomy on tooth-germ allografts in rats

Archives of Oral Biology, 1971
Abstract The development of the lymphoid tissues is dependent on the presence of a normal thymus gland. The removal of the thymus in 24-hr old rats produces a dramatic suppression of immunological activity in lymphoid tissues. When tooth germs were allogenically transplanted to 2-week-old rats totally thymectomized at birth, the transplants grew ...
B. Macêdo-Sobrinho, B. Iranpour
openaire   +3 more sources

Mitochondrial granule distribution in tooth germ cells

The Anatomical Record, 1977
AbstractIncisor and molar tooth germs of albino rats sacrificed at the eighteenth and twentieth days in utero and one to seven days after birth were studied with light and electron microscopy. Observations of the various stages of tooth development in molars established that intramitochondrial granules in odontoblasts were comparable to the ...
A. Abousy, F. S. Sayegh
openaire   +2 more sources

Tooth replantation in germ-free and conventional rats

Dental Traumatology, 2007
The purpose of the present study was to evaluate the influence of bacterial infection on the pulpal and periodontal tissues in replanted teeth using germ-free and conventional rats. Forty maxillary and mandibular first molars from ten 6-week-old germ-free male Wistar rats were used.
M. Nishioka   +3 more
openaire   +3 more sources

The sensitivity of the developing tooth germ to systemic disturbances

Early Human Development, 1984
Deciduous tooth germs were removed from 76 babies who were either stillborn or had died in infancy. Lines in enamel or dentine were identified histologically. A chronological association was found between these lines and systemic illness in the child or pregnant mother in half the cases studied.
R.S. Levine   +3 more
openaire   +3 more sources

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