International Journal of Dental Sciences and Research
ISSN (Print): 2333-1135 ISSN (Online): 2333-1259 Website: Editor-in-chief: Marcos Roberto Tovani Palone
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International Journal of Dental Sciences and Research. 2020, 8(4), 87-90
DOI: 10.12691/ijdsr-8-4-1
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Dentine Dysplasia Type II: Report of a Rare Case with Radiographic Criteria of Type I

Hamdy AM Metwaly1, 2 and Faraj Alotaiby2,

1Department of Oral Pathology, Faculty of Dentistry, Tanta University, Egypt

2Department of Maxillofacial Surgery & Diagnostic Sciences, College of Dentistry, Qassim University, KSA

Pub. Date: June 04, 2020

Cite this paper:
Hamdy AM Metwaly and Faraj Alotaiby. Dentine Dysplasia Type II: Report of a Rare Case with Radiographic Criteria of Type I. International Journal of Dental Sciences and Research. 2020; 8(4):87-90. doi: 10.12691/ijdsr-8-4-1


Dentin dysplasia (DD) is a hereditary malformation of dental tissues affecting the dentin during the process of development. The teeth appear clinically normal; however, radigraphically the pulp morphology is abnormal and may be large or obliterated. The roots are diminutive, blunted, deformed or even absent. Periapical radiolucencies may be present without an apparent cause. The affected teeth may exhibit great mobility and exfoliate early even with minor trauma. In this article, we reported clinical and radiographic findings of a rare case of DD that have radiographic features of both DD- type II and DD type I in a 24 years old male patient visited the Out-Patient Dental Clinic of Qassim University, KSA.

dentin dysplasia hereditary abnormalities

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[1]  Joseph AR, James JS, and Richard CKJ. Oral Pathology: Clinical Pathologic Correlations, 7th ed, Elsevier Saunders Publisher, Missouri 2017, 383-4.
[2]  Fulari SG, Tambake DP. Rootless teeth: Dentin dysplasia type I. Contemp Clin Dent 2013; 4:520-2.
[3]  Kumar N, Ansari N, Shrivastava H, Patsa S, Ray J. Dentin Dysplasia Type I: Case Series and Review Of The Literature. Int J Dent Health Sci 2015; 2: 198-202
[4]  Ballschmiede G. Dissertation, Berlin, 1920. Quoted in Herbst E, Apffelstaedt M, editors. Malformations of the Jaws and Teeth. New York: Oxford University Press; 1930.
[5]  Rushton MA. A case of dentinal dysplasia. Guy’s Hosp Rep 1939; 89: 369-73.
[6]  Shields, ED, Bixler, D, El-Kafrawy, AM. A proposed classification for heritable human dentine defects with a description of a new entity. Arch Oral Biol. 1973; 18: 543-553
[7]  Witkop CJ Jr. Hereditary defects of dentin. Dent Clin North Am 1975; 19: 25-45.
[8]  Brenneise CV, Conway KR. Dentin dysplasia, type II: report of 2 new families and review of the literature. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 1999; 87: 752-5.
[9]  Carroll M.K., Duncan W.K., Perkins T.M. Dentin dysplasia: Review of the literature and a proposed subclassification based on radiographic findings. Oral Surg, Oral Med, Oral Pathol 1991; 72: 119-25.
[10]  Ciola B, Bahn SL, Goviea GL. Radiographic manifestations of an unusual combination types I and type II dentin dysplasia, Oral Surg Oral Med Oral Pathol 1978; 45: 317-22.
[11]  de La Dure-Molla M, Philippe Fournier B, Berdal A. Isolated dentinogenesis imperfecta and dentin dysplasia: revision of the classification. Eur J Hum Genet. 2015; 23: 445-51.
[12]  Song YL, Wang CN, Fan MW, Su B, Bian Z. Dentin phosphoprotein frameshift mutations in hereditary dentin disorders and their variation patterns in normal human population. J Med Genet. 2008; 45: 457-64.
[13]  Beattie ML, Kim J-W, Gong S-G, Murdoch-Kinch CA, Simmer JP, Hu JC-C. Phenotypic variation in dentinogenesis imperfecta/dentin dysplasia linked to 4q21. J Dent Res 2006; 85: 329-33.
[14]  Bloch-Zupan, X. Jamet, C. Etard, V. Laugel, J. Muller, et al. Homozygosity mapping and candidate prioritization identify mutations, missed by whole-exome sequencing, in SMOC2, causing major dental developmentaldefects, Am. J. Hum. Genet. 2011; 89: 773-81.
[15]  Cherkaoui JI, M. El Alloussi, F.Z. Laarabi, A. Bouhouche, etal. Inhabitual autosomal recessive form of dentin dysplasia type I in a large consanguineous Moroccan family Eur J Med Genet 2013; 56: 442-4.
[16]  Logan J, Becks H, Silverman S Jr, Pindborg JJ. Dentinal dysplasia. Oral Surg 1962; 15: 317-33.
[17]  Sauk JJ, Lyons HW, Trowbridge HO, Witkop CJ Jr. An electron optic analysis and explanation for the etiology of dentinal dysplasia. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 972; 33: 763-71.
[18]  Wesley RK, Wysocki GP, Mintz SM, et al. Dentin dysplasia type I. Oral Surg 1976; 41: 516-24.