Sage Journals: Discover world-class research

Abstract

The iodide permeability (Ip) of abraded bovine enamel increased after short exposure to an acid buffer and decreased after short exposure to a mineralizing solution. Intraoral exposure gave a marked decrease in Ip after one h and a continued lesser decrease after two and three h. In vitro exposure to fresh and dialyzed saliva and various undersaturated solutions indicated that the intraoral decrease was due to mineralization rather than to pellicle formation. Analysis of the data also indicated that part of the mineral formed intraorally was more loosely bound to the enamel than that formed from an inorganic mineralizing solution. The rapid rate of the initial phase of intraoral mineralization shown in this study reveals a powerful mechanism for protecting the dentition against demineralization.

Get full access to this article

View all access options for this article.

References

Caldwell R.C.; Gilmore, R.W. ; Timberlake, P. ; Pigman, J. ; and Pigman, W. : Semiquantitative Studies of in vitro Caries by Microhardness Tests , J Dent Res 37:301-305, 1958.

Newbrun, E. ; Timberlake, P. ; and Pigman, W. : Changes in Microhardness of Enamel Following Treatment with Lactate Buffer , J Dent Res 38:293-300, 1959.

Brudevold, F. ; Hein, J.W. ; Bonner , J.F. ; Nevin, R.B. ; Bibby, B.G. ; and Hodge, H.C. : Reaction of Tooth Surfaces With One PPM of Fluoride as Sodium Fluoride, J Dent Res 36:771-779,1957.

Hardwick, J.L. and Fremlin, J.H. : Isotope Studies on the Permeability of the Dental Enamel to Small Articles and Ions, Proc Soc Med 52:752-758, 1959.

Von der Fehr, F.R. : The 32p Uptake and the Hardness of Unabraded, Abraded and Exposed Human Enamel Surfaces, Arch Oral Biol 12:623-638, 1967.

Meckel, A.H. : The Nature and Importance of Organic Deposits on Dental Enamel, Caries Res 2:104-114, 1968.

McCann, H.G. and Fath, E.M. : Phosphate Exchange in Hydroxylapatite, Enamel, Dentin, and Bone. 1. Mechanism of Exchange, J Biol Chem 231:863-868, 1958.

Snju, T. and Rlla, G. : Chemical Analysis of the Acquired Pellicle Formed in Two Hours on Cleaned Human Teeth in vivo. Rate of Formation and Amino Acid Analysis, Caries Res 7:30-38, 1973.

Koulourides, T. ; Feagin, F. ; and Pigman, W. : Remineralization of Dental Enamel by Saliva in vitro, Ann NY Acad Sci: 751-775, 1965.

10.

Silverstone, L.M. and Poole, D.F.G. : Modification of the Histological Appearance of Enamel Caries After Exposure to Saliva and a Calcifying Fluid , Caries Res 2:87-96, 1968.

11.

Zahradnik, R.T. : Modification by Salivary Pellicles of in vitro Enamel Remineralization, J Dent Res 58:2066-2073, 1979.

12.

Bakhos, Y. ; Brudevold, F. ; and Aasenden, R. : In vivo Estimation of the Permeability of Surface Human Enamel, Arch Oral Biol 22:599-603, 1977.

13.

Hay, D.I. and Moreno, E.C. : Macromolecular Inhibitors of Calcium Phosphate Precipitation in Human Saliva. Their Role in Providing a Protective Environment for the Teeth. In: Proceedings - Saliva and Dental Caries, Kleinberg, I. , Ellison, S.A., and Mandel, I.D., Eds., Sp Supp, Microbiology Abstracts, 1979, pp. 45-58.

14.

Bakhos, Y. and Brudevold, F. : Effect of Initial Demineralization on the Permeability of Enamel to Iodide , Arch Oral Biol, In press.

15.

Brudevold, F. : A Study of the Phosphate Solubility of the Human Enamel Surface, J Dent Res 27:320-329, 1948.

16.

Stralfors, A. : Rate of Dissolution of Dental Enamel, Trans R Sch Dent Stockholm (Umea) 1:52-90, 1958.

17.

Hay, D.I. and Schlesinger, D.H. : Human Salivary Statherin : A Peptide Inhibitor of Calcium Phosphate Precipitation. In: Calcium-binding Proteins and Calcium Function , Wasserman, R.H. , Corradino, R.A. , Carafoli, E. , Kretsinger, R.H. , MacLennan, D.H. , and Siegl, F.L. , Eds., North Holland, NY: Elsevier Publishing Co., 1977, pp. 401-408.

18.

Lie, T. : Scanning and Transmission Electron Microscope Study of Pellicle Morphogenesis , Scand J Dent Res 85 :217-231, 1977.

19.

Brudevold, F. ; Aasenden, R. ; and Bakhos, Y. : A Preliminary Study of Post-eruptive Maturation of Teeth in situ, Caries Res, In press.

20.

Zahradnik, R.T. ; Moreno, E.C. ; and Burk, E.J. : Effect of Salivary Pellicles on Enamel Subsurface Demineralization in vitro, J Dent Res 55:664-670, 1976.

Intraoral Mineralization of Abraded Dental Enamel

Abstract

Get full access to this article

References