Two methods were used to reduce net calcium uptake by the secretory stage enamel of developing rat molar explants. Neither method had a significant effect on fluoride uptake by the explants. These findings indicate that the mechanisms for uptake in the developing enamel are independent for calcium and fluoride.
Get full access to this article
View all access options for this article.
References
1.
Bawden, J.W.; Crenshaw, M.A.: Takano, Y.; and Ham-Marstrom, L. : Ion Transport Through the Enamel Organ- An Update, J Dent Res61(Sp Iss):1552-1554, 1982.
2.
Bawden, J.W. and Deaton, T.G.: In vitro Study of the Cellular Control of 18F Uptake in the Enamel of Developing Rat Teeth, Arch Oral Biol26:487-490, 1981.
3.
Bawden, J.W.; Deaton, T.G.; and Crenshaw, M.A.: Role of the Enamel Organ in Limiting Fluoride Uptake During the Maturation Phase of Enamel Development, J Dent Res61 :506-509, 1982.
4.
Bawden, J.W.; Merritt, D.H.; and Deaton, T.G.: In vitro Study of 45Ca and 32P Uptake in Developing Rat Molar Enamel Using Quantitative Methods, Arch Oral Biol26:477-482, 1981. Bawden, J.W. and Wennberg, A.: In vitro Study of Cellular Influence on 45Ca Uptake in Developing Enamel, J Dent Res56:313-319, 1977.
5.
Bawden, J.W. and Wennberg, A.: Ameloblasts - Ion Transport Function, J Dent Res58:708-713, 1979.
6.
Crenshaw, M.A. and Bawden, J.W.: Fluoride-binding by Organic Matrix from Early and Late Developing Bovine Fetal Enamel Determined by Flow Rate Dialysis, Arch Oral Biol26: 473-476,1981.
7.
Deakins, M.: Changes in the Ash, Water and Organic Content of Pig Enamel During Calcification , J Dent Res21:429-435, 1942. Deutsch, D.; El-Attar, I.; Robinson, C.; and Weatherell , J.A. : Rate and Timing of Enamel Development in the Deciduous Bovine Incisor, Arch Oral Biol24:407-413, 1979. Deutsch, D. and Pe'er E.: Development of Enamel in Human Fetal Teeth , J Dent Res61(Sp Iss):1543-1551, 1982 . Drinkard, C. ; Gibson, L.; Crenshaw, M.A.; and Bawden, J.W.: Calcium Binding by Organic Matrix of Developing Bovine Enamel, Arch Oral Biol26:483-485, 1981.
8.
Frank, R.M. and Sognnaes, R.F.: Electron Microscopy of Matrix Formation and Calcification in Rat Enamel , Arch Oral Biol1:339-348, 1960.
9.
Glimcher, M.J.; Brickley-Parsons, D.; and Levine, P.T.: Studies of Enamel Proteins During Maturation, Calcif Tissue Res24 :259-270,1977.
10.
Glock, G.E.; Mellanby, H.; Mellanby, M.; Murray, M.M.; and Thewlis, J.: A Study of the Development of Dental Enamel in Dogs, J Dent Res21:183-199, 1942. Hammarström, L.: Different Localization of Tetracycline and Simultaneously Injected Radiocalcium in Developing Enamel, Calcif Tissue Res1:229-242, 1967.
11.
Hiller, C.R.; Robinson, C.; and Weatherell, J.A. : Variation in the Composition of Developing Rat Incisor Enamel, Calcif Tissue Res18:1-12, 1975.
12.
Kurahashi, Y.; Nagai, N.; Watanabe, K.; Watanabe, H.; and Yoma, K.: Chronological Observations on the Odontogenesis of the Rat Molar, Bull Tokyo Dent Coll9:147-159, 1968. Leblond, C.P. and Warshawsky, H.: Dynamics of Enamel Formation in the Rat Incisor Tooth, J Dent Res58:950-975, 1979.
13.
Marsland, E.A.: A Histological Investigation of Amelogenesis in Rats. Part I - Matrix Formation , Br Dent J91:251-261, 1951.
14.
Marsland, E.A.: A Histological Investigation of Amelogenesis in Rats. Part II - Maturation , Br Dent J92:109-119, 1952. Morgan, J.F.; Morton, H.J.; and Raymon, C.P.: Nutrition of Animal Cells in Tissue Culture. Part I - Initial Studies on a Synthetic Medium, Proc Soc Exp Biol Med73:1-8, 1950.
15.
Neiman, A. and Eisenmann, D.R.: The Effect of Strontium, Cobalt, and Fluoride on Rat Incisor Enamel Formation , Anat Rec183 :303-322, 1975.
16.
Reith, E.J.: The Ultrastructure of Ameloblasts During Matrix Formation and the Maturation of Enamel, Biophys Biochem Cytol9:825-840, 1961.
17.
Reith, E.J.: The Stages of Amelogenesis as Observed in Molar Teeth of Young Rats , J Ultrastruct Res30:111-151, 1970. Robinson, C.; Briggs, H.D.; and Atkinson, P.J.: Histology of Enamel Organ and Chemical Composition of Adjacent Enamel in Rat Incisors, Calcif Tissue Int33:513-520, 1981.
18.
Robinson, C.; Briggs, H.D.; Atkinson, P.J.; and Weather
19.
Ell, J.A.: Matrix and Mineral Changes in Developing Enamel, J Dent Res58:871-880, 1979.
20.
Robinson, C.; Fuchs, P.; Deutsch, D.; and Weatherell, J.A. : Four Chemically Distinct Stages in Developing Enamel from Bovine Incisor Teeth, Caries Res12:1-11, 1978. Robinson, C.; Hiller, C.R.; and Weatherell, J.A.: Uptake of 32P-labelled Phosphate into Developing Rat Incisor Enamel, Calcif Tissue Res15:143-152, 1974.
21.
Robinson, C.; Kirkham, J.; Briggs, H.D.; and Atkinson, P.J.: Enamel Proteins: From Secretion to Maturation, J Dent Res61(Sp Iss):1490-1495, 1982.
22.
Robinson, C.; Lowe, N.R.; and Weatherell, J.A. : Changes in Amino-acid Composition of Developing Rat Incisor Enamel, Calcif Tissue Res23:19-31, 1977.
23.
Sachs, G.: Cation and Anion Transport Mechanisms. In: Transport of Ions and Water in Animals, B.L. Gupta , R.B. Moreton, J.L. Oschman , and B.J. Wall, Eds., London: Academic Press, 1977, pp. 215-223.
24.
Suga, S.: Progressive Mineralization Pattern of Developing Enamel During the Maturation Stage, J Dent Res61(Sp Iss):1532-1542, 1982.
25.
Suga, S. and Gustafson, F.: Studies on the Development of Rat Enamel by Means of Histochemistry, Micro-radiography and Polarized Light Microscopy. In: Advances in Fluoride Research and Dental Caries Prevention, Oxford : Pergamon Press, 1962, pp. 223-244.
26.
Suga, S.; Murayama, Y.; and Musashi, T.: A Study of the Mineralization Process in the Developing Enamel of Guinea Pigs , Arch Oral Biol15:597-612, 1970.
27.
Taves, D.R.: Determination of Submicromolar Concentration of Fluoride in Biological Samples , Talenta15:1015-1023, 1968 . Weatherell, J.A.; Deutsch, D.; Robinson , C.; and Halls-Worth , A.S.: Fluoride Concentration in Developing Enamel, Nature (Lond)256:230-232, 1975.
28.
Weinmann, J.P.; Wessinger, G.D.; and Reed, R.: Correlation of Chemical and Histological Investigations of Developing Enamel , J Dent Res21:171-182, 1942.
29.
Whitford, G.M. and Reynolds, K.E.: Plasma and Developing Enamel Fluoride Concentrations During Chronic Acid Base Disturbances, J Dent Res58:2058-2065, 1979 .