The X-ray diffraction patterns of intact enamel treated with various fluoride solutions showed essentially no change in the crystalline structure of hydroxyapatite. The reaction between powdered enamel of various particle size and fluoride solutions showed a predominance of calcium fluoride formation. The substitution of F for OH ions in hydroxyapatite was not detected in the formation of fluorapatite under the experimental conditions.
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References
1.
Volker, J.F. ; Hodge, H.C.; Wilson, H.J.; and Van Voorhis , S.H.: The Absorption of Fluorides by Enamel, Dentin, Bone and Hydroxyapatite as Shown by the Radioactive Isotope, J Biol Chem134:543-548, 1940.
2.
Phillips, R.W. , and Muhler, J.C.: Solubility of Enamel Protected by Sodium Fluoride and Other Compounds, J Dent Res26: 109-119, 1947.
3.
Muhler, J.C. ; Boyd, T.M.; and Van Huysen , G.: Effect of Fluorides and Other Compounds on the Solubility of Enamel, Dentin and Tricalcium Phosphate in Dilute Acids, J Dent Res29:182-193, 1950.
4.
Muhler, J.C. ; Day, H.G.; and Nebergall , W.H.: Relationship Between pH, Age and Concentration of Solutions of Stannous Fluoride and Sodium Fluoride in Decreasing Enamel Solubility and Affecting the Uptake of Fluorine, J Dent Res31:756-760, 1952.
5.
McCann, H.G.: Reaction of Fluoride Ion with Hydroxyapatite , J Biol Chem201:247-259, 1953.
6.
Mccann, H.G. , and Bullock, F.A.: Reactions of Fluoride Ions with Powdered Enamel and Dentin, J Dent Res34:59-67, 1955.
7.
Brudevold, F. ; Steadman, L.T.; Gardner, D.E.; Rowley, J.; and Little, M.F.: Uptake of Tin and Fluoride by Intact Enamel , J Amer Dent Assoc53:159-164, 1956.
8.
Leach, S.A.: Reaction of Fluoride with Powdered Enamel and Dentin, Brit Dent J106:133-142, 1959.
9.
Cooley, W.E. : Reactions of Tin (II) and Fluoride Ions with Etched Enamel, J Dent Res40:1199-1210, 1961.
10.
Fischer, E.E. : Inhibition of Enamel Demineralization by Repeated Treatments with Sodium and Stannous Fluoride Solutions, J Dent Res41:392-397, 1962.
11.
Brudevold, F.; Savory, A.; Gardner, D.E.; Spinelli, M.; and Speirs, R.: A Study of Acidulated Fluoride SolutionsI. In Vitro Effects on Enamel, Arch Oral Biol8 :167-177, 1963.
12.
Mellberg, J.R. : Fluoride Uptake by Intact Human Tooth Enamel from Acidulated Fluoride-Phosphate Preparations, J Dent Res45:303-306, 1966.
13.
Gerould, C.H. : Electron Microscope Study of the Mechanism of Fluoride Deposition in Teeth, J Dent Res24:223-233, 1945.
14.
Scott, D.B. ; Picard, R.G.; and Wyckoff, R.W.G.: Studies of the Action of Sodium Fluoride on Human Enamel by Electron Microscopy and Electron Diffraction, Public Health Rep65:43-56, 1950.
15.
Scott, D.B. : Electron Microscopic Evidence of Fluoride-Enamel Reaction, abstracted, J Dent Res39:1117, 1960.
16.
Fischer, R.B. , and Muhler, J.C.: The Effect of Sodium Fluoride upon the Surface Structure of Powdered Dental Enamel, J Dent Res31:751-755, 1952.
17.
Fischer, R.B. ; Muhler, J.C.; and Wust, C.J.: Effects of Several Fluoride Reagents on the Surface Structure of Powdered Dental Enamel, J Dent Res33:50-54, 1954.
18.
Fischer, R.B. ; Ring, C.E.; and Muhler, J.C.: X-Ray Study of Fluorapatite Formation During the Fluoride Treatment of Powdered Dental Enamel, J Dent Res35: 773-777, 1956.
19.
Langer, H.G. , and Nebergall, W.H.: Identification of the Reaction Products of Stannous Fluoride and Sodium Fluoride with Powdered Dental Enamel, abstracted , J Dent Res37:58, 1958.
20.
Collins, R.; Nebergall, W.; and Langer, H.: A Study of the Reactions of Various Tin (II) Compounds with Calcium Hydroxyapatite , J Amer Chem Soc83 :3724-3725, 1961 .
21.
Collins, R.: Reactions of Tin (II) Compounds with Calcium Hydroxyapatite, PhD thesis, Indiana University, Bloomington, 1962.
22.
Frazier, P.D. , and Engen, D.W.: X-Ray Diffraction Study of the Reaction of Acidulated Fluoride with Powdered Enamel, J Dent Res45:1114-1148, 1948.
23.
Hoerman, K.C. ; Klima, J.E.; Birks, L.S.; Nagel, D.J.; Ludwick, W.E.; and Lyon W.H.: Tin and Fluoride Uptake in Human Enamel in Situ: Electron Probe and Chemical Microanalysis, J Amer Dent Assoc73: 1301-1305, 1966.
24.
Deshazer, D.O. , and Swartz, C.J.: The Formation of Calcium Fluoride on the Surface of Hydroxyapatite after Treatment with Acidic Fluoride-Phosphate Solutions , Arch Oral Biol12:1071-1075, 1967 .
25.
Manly, R.S. , and Hodge, H.C.: Density and Refractive Index Studies of Dental Hard Tissues, J Dent Res18:133-141, 1939.
26.
Deer, W.A.; Howie, R.A.; and Zussman, J.: Rock Forming Minerals, New York: John Wiley and Sons, 1962, vol 5.
