This Article Abstract Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Hirota, F. Search for Related Content PubMed PubMed Citation Articles by Hirota, F. Social Bookmarking                         What's this?

An Explanation for the "Two Fiber Axes" Problem in Human Enamel by X-ray Diffraction

Associated Dental Research Institute, Nippon Dental University, Chiyoda-ku, Tokyo 102, Japan

Since Thewlis found the "two fiber axes" patterns on x-ray diffractograms of human enamel in 1934, many investigators have studied this problem. However, a definite answer has not yet been obtained. The present detailed x-ray diffraction study showed that the 'two fiber axes" patterns in human enamel were caused by reflections from the two zones of the Hunter-Schreger bands being recorded simultaneously on x-ray film, because we used an x-ray beam far larger in size than the width of the Hunter-Schreger bands.

REFERENCES

• Boyde, A. (1969): Correlation of Ameloblast Size with Enamel Pattern, Use of Scanning Electron Microscope to Make Surface Area Measurements, Z Zellforsch 93:583-593.[Medline] [Order article via Infotrieve]
• Boyde, A. (1976): Amelogenesis and the Structure of Enamel. In: Scientitic Foundations of Dentistry, B. Cohen and I.R.H. Kramer, Eds., London: Heinemann, pp. 335-352.
• Frank, R.M. (1959): Etude au Microscope Electronique de l'Émail Humain Adult - Rapports Existant Entre la Reseau Fibrillaire Organique et les Cristaux d'Apatite, Actual Odontstomatol 45:13-35.
• Frank, R.M. and Nalbandian, J. (1967): Ultrastructure of Amelogenesis. In: Structural and Chemical Organization of Teeth (I), A.E.W. Miles, Ed., New York: Academic Press, pp. 399-466.
• Frank, R.M.; Sognnaes, R.F.; and Kern, R. (1960): Calcification of Dental Tissues with Special Reference to Enamel Ultrastructure. In: Calcification in Biological Systems, R.F. Sognnaes, Ed., Washington, D.C.: AAAS, pp. 163-202.
• Glas, J.E. (1962): Studies on the Ultrastructure of Dental Enamel. II. The Orientation of the Apatite Crystallites as Deduced from X-ray Diffraction, Arch Oral Biol 7:91-105.[Medline] [Order article via Infotrieve]
• Glimcher, M.J.; Daniel, E.J.; Travis, D.F.; and Kamhi, S. (1965): Electron Optical and X-ray Diffraction Studies of the Organization of the Inorganic Crystals in Embryonic Bovine Enamel, J Ultrastruct Res Suppl 7:1-77.[Medline] [Order article via Infotrieve]
• Hirota, F. (1982): Prism Arrangement in Human Cusp Enamel Deduced by X-ray Diffraction, Arch Oral Biol 27:931-937.[Medline] [Order article via Infotrieve]
• Meckel, A.H.; Griebstein, W.J.; and Neal, R.J. (1965): Structure of Mature Human Dental Enamel as Observed by Electron Microscopy, Arch Oral Biol 10:775-783.[CrossRef][Medline] [Order article via Infotrieve]
• Osborn, J.W. (1968): Directions and Interrelationship of Prisms in Cusp and Cervical Enamel of Human Teeth, J Dent Res 47:395-402.[Abstract/Free Full Text]
• Poole, D.F.G. and Brooks, A.W. (1961): The Arrangement of Crystallites in Enamel Prisms, Arch Oral Biol 5:14-27.[Medline] [Order article via Infotrieve]
• Thewlis, J. (1934): X-ray Examination of Human Teeth, Br Dent J 57:457-466.
• Thewlis, J. (1936): X-rays and Enamel Histology, Br Dent J 61:270-276.
• Thewlis, J. (1939): The Examination of Dental Enamel by X-rays and the Polarizing Microscope, Proc Phys Soc 51:992-1002.
• Thewlis, J. (1940): The Structure of Teeth as Shown by X-ray Examination, Med Res Council Spec Rep No. 238.
• Trautz, O.R.; Klein, E.; Fessenden, E.; and Addelston, H.K. (1953): The Interpretation of the X-ray Diffractograms Obtained from Human Dental Enamel, J Dent Res 32:420-431.[Free Full Text]
• Trautz, O.R. (1967): Crystalline Organization of Dental Mineral. In: Structural and Chemical Organization of Teeth (I), A.E.W. Miles, Ed., New York: Academic Press, pp. 165-200.

Journal of Dental Research, Vol. 65, No. 7, 978-981 (1986)
DOI: 10.1177/00220345860650071601


CiteULike    Complore    Connotea    Del.icio.us    Digg    Reddit    Technorati    Twitter    What's this?

This Article Abstract Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Hirota, F. Search for Related Content PubMed PubMed Citation Articles by Hirota, F. Social Bookmarking                         What's this?