Coupled Diffusion as Basis for Subsurface Demineralization in Dental Caries (Short Communication)

1987 ◽  
Vol 21 (6) ◽  
pp. 522-525 ◽  
Author(s):  
P. Anderson ◽  
J.C. Elliott
Keyword(s):  
Dental Caries ◽  
Short Communication ◽  
Coupled Diffusion

Bilateral Dental Caries from the Individual Perspective: a Definition and a Statistical Test for Its Existence (Short Communication)

1986 ◽  
Vol 20 (1) ◽  
pp. 91-95
Author(s):  
J. Boffa ◽  
M. Shwartz ◽  
Arlene Ash ◽  
J.S. Pliskin ◽  
H.G. Gröndahl
Keyword(s):  
Dental Caries ◽  
Short Communication ◽  
Statistical Test ◽  
The Individual ◽  
Individual Perspective

Fluoride Administration during Enamel Formation and Its Effect on Dental Caries in Rats (Short Communication)

1990 ◽  
Vol 24 (5) ◽  
pp. 356-358 ◽  
Author(s):  
Carl-Johan Spak ◽  
Jan Ekstrand ◽  
Anita Nordlund ◽  
John Afseth ◽  
Gunnar Rølla
Keyword(s):  
Dental Caries ◽  
Short Communication ◽  
Enamel Formation

scholarly journals Short Communication: The Biology of Natfa People: Bones and Teeth

2018 ◽  
Vol 21 (1) ◽  
pp. 18-20
Author(s):  
Abdulla Al-Shorman
Keyword(s):  
Dental Caries ◽  
Short Communication ◽  
The Public ◽  
Food Particles ◽  
Teeth As Tools ◽  
Archeological Site ◽  
Northern Jordan

The archeological site of Natfa is a rurallate-antiquity site in northern Jordan. The tomb typologypoints to two social ranks: the public compared to thefew elites who might have controlled wealth allocation.The people died at young ages (under 35 years of age).There seems to be reliance on hard food particles richin carbohydrates, which increased the occurrence ofinterproximal caries. A few oblique dental caries arereported, probably caused by using teeth as tools.

Cell Wall Ultrastructure in Three Strains of a Cariogenic Streptococcus

1971 ◽  
Vol 29 ◽  
pp. 338-339
Author(s):  
M. J. Kramer ◽  
Alan L. Coykendall
Keyword(s):  
Cell Wall ◽  
Dental Caries ◽  
Streptococcus Mutans ◽  
Microscopic Study ◽  
Electron Microscopic Study ◽  
Genetic Heterogeneity ◽  
Morphological Characteristics ◽  
Electron Microscopic ◽  
Dna Reassociation ◽  
Wall Ultrastructure

During the almost 50 years since Streptococcus mutans was first suggested as a factor in the etiology of dental caries, a multitude of studies have confirmed the cariogenic potential of this organism. Streptococci have been isolated from human and animal caries on numerous occasions and, with few exceptions, they are not typable by the Lancefield technique but are relatively homogeneous in their biochemical reactions. An analysis of the guanine-cytosine (G-C) composition of the DNA from strains K-1-R, NCTC 10449, and FA-1 by one of us (ALC) revealed significant differences and DNA-DNA reassociation experiments indicated that genetic heterogeneity existed among the three strains. The present electron microscopic study had as its objective the elucidation of any distinguishing morphological characteristics which might further characterize the respective strains.

Ultrastructure of primary spermatocyte in fish (Tilapia: Oreochromis niloticus): The synaptonemal complex

1986 ◽  
Vol 44 ◽  
pp. 288-289
Author(s):  
T. Guha ◽  
A. Q. Siddiqui ◽  
P. F. Prentis
Keyword(s):  
Fine Structure ◽  
Electron Microscope ◽  
Synaptonemal Complex ◽  
Oreochromis Niloticus ◽  
Short Communication ◽  
Primary Spermatocyte ◽  
Mitotic Division ◽  
Meiotic Cell ◽  
Electron Microscope Level ◽  
Homologous Chromosomes

The Primary Spermatocytes represent a stage in spermatogenesis when the first meiotic cell division occurs. They are derived from Spermatogonium or Stem cell through mitotic division. At the zygotene phase of meiotic prophase the Synaptonemal complex appears in these cells in the space between the paired homologous chromosomes. Spermatogenesis and sperm structure in fish have been studied at the electron microscope level in a few species? However, no work has yet been reported on ultrastructure of tilapia, O. niloticus, spermatozoa and spermatogenetic process. In this short communication we are reporting the Ultrastructure of Primary Spermatocytes in tilapia, O. niloticus, and the fine structure of synaptonemal complexes seen in the spermatocyte nuclei.

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