Iron overloading inhibits dentine mineralization. 1999

R C De Lucca, and P M Mandalunis, and A M Ubios
Department of Histology and Embryology, Faculty of Dentistry, University of Buenos Aires.

The present study reveals the inhibitory effect of iron intoxication on the process of dentine mineralization. Wistar rats were injected intraperitoneally with iron dextran at 0.88 g/kg body weight per day for 10 days during the period of odontogenesis. An age-matched group was injected intraperitoneally with bisodium etidronate (EHBP) at 20 mg/kg body weight per day for 10 days. Another age-matched group was treated with similar amounts of saline intraperitoneally and considered as control. At the end of the experimental period the animals intoxicated with iron exhibited non-mineralized dentine and mineralized bone. The animals treated with EHBP showed non-mineralized dentine and bone. These findings would suggest the existence of different mineralization mechanisms for bone and dentine.

UI MeSH Term Description Entries
D007274 Injections, Intraperitoneal Forceful administration into the peritoneal cavity of liquid medication, nutrient, or other fluid through a hollow needle piercing the abdominal wall. Intraperitoneal Injections,Injection, Intraperitoneal,Intraperitoneal Injection
D007505 Iron-Dextran Complex A complex of ferric oxyhydroxide with dextrans of 5000 to 7000 daltons in a viscous solution containing 50 mg/ml of iron. It is supplied as a parenteral preparation and is used as a hematinic. (Goodman and Gilman's The Pharmacological Basis of Therapeutics, 8th ed, p1292) Dextran-Iron Complex,Dexferrum,Dextrofer,Feosol,Ferridextran,Hematran,Icar,Imfergen,Imferon,Imperon,Imposil,InFed,Norferan,Dextran Iron Complex,Iron Dextran Complex
D002113 Calcification, Physiologic Process by which organic tissue becomes hardened by the physiologic deposit of calcium salts. Bone Mineralization,Calcification, Physiological,Physiologic Calcification,Mineralization, Bone,Physiological Calcification
D003804 Dentin The hard portion of the tooth surrounding the pulp, covered by enamel on the crown and cementum on the root, which is harder and denser than bone but softer than enamel, and is thus readily abraded when left unprotected. (From Jablonski, Dictionary of Dentistry, 1992) Dentine,Dentines,Dentins
D006397 Hematinics Agents which improve the quality of the blood, increasing the hemoglobin level and the number of erythrocytes. They are used in the treatment of anemias. Erythropoiesis Stimulating Agent,Hematinic,Hematopoietic Agents,Erythropoiesis Stimulating Agents,Agent, Erythropoiesis Stimulating,Stimulating Agent, Erythropoiesis
D000539 Alveolar Process The thickest and spongiest part of the maxilla and mandible hollowed out into deep cavities for the teeth. Alveolar Ridge,Alveolar Processes,Process, Alveolar,Processes, Alveolar,Ridge, Alveolar
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012968 Etidronic Acid A diphosphonate which affects calcium metabolism. It inhibits ectopic calcification and slows down bone resorption and bone turnover. EHDP,Ethanehydroxydiphosphonate,Etidronate,Etidronate Disodium,Sodium Etidronate,(1-hydroxyethylene)diphosphonic acid,(1-hydroxyethylene)diphosphonic acid, Tetrapotassium Salt,1,1-hydroxyethylenediphosphonate,1-Hydroxyethane-1,1-Diphosphonate,1-Hydroxyethylidene-1,1-Bisphosphonate,Dicalcium EHDP,Dicalcium Etidronate,Didronel,Disodium 1-Hydroxyethylene Diphosphonate,Disodium Etidronate,Ethanehydroxyphosphate,Etidronate, Tetrapotassium Salt,HEDP,HEDSPA,Hydroxyethanediphosphonate,Hydroxyethylidene Diphosphonic Acid,Phosphonic acid, (1-hydroxyethylidene)bis-, disodium salt,Xidifon,Xidiphon,Xydiphone,1 Hydroxyethane 1,1 Diphosphonate,1 Hydroxyethylidene 1,1 Bisphosphonate,1,1 hydroxyethylenediphosphonate,1-Hydroxyethylene Diphosphonate, Disodium,Diphosphonate, Disodium 1-Hydroxyethylene,Diphosphonic Acid, Hydroxyethylidene,Disodium 1 Hydroxyethylene Diphosphonate,EHDP, Dicalcium,Etidronate, Dicalcium,Etidronate, Disodium,Etidronate, Sodium,Salt Etidronate, Tetrapotassium,Tetrapotassium Salt Etidronate
D014074 Tooth Calcification The process whereby calcium salts are deposited in the dental enamel. The process is normal in the development of bones and teeth. (Boucher's Clinical Dental Terminology, 4th ed, p43) Calcification, Tooth,Teeth Calcification,Calcification, Teeth,Calcifications, Teeth,Calcifications, Tooth,Teeth Calcifications,Tooth Calcifications
D017208 Rats, Wistar A strain of albino rat developed at the Wistar Institute that has spread widely at other institutions. This has markedly diluted the original strain. Wistar Rat,Rat, Wistar,Wistar Rats

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