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Year : 2014  |  Volume : 5  |  Issue : 4  |  Page : 164-167

Remember the periroot sheet in orthodontic treatment of ectodermal dysplasia patients

Department of Odontology, Orthodontic Section, Health Science Faculty, Copenhagen University, København, Denmark

Correspondence Address:
Prof. Inger Kjær
dr. odont. et. dr. med. Orthodontics Section, Department of Odontology Faculty of Health and Medical Sciences, University of Copenhagen 20 Nørre Allé, DK-2200 Copenhagen N
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2155-8213.140608

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Introduction: Root resorption has various etiologies. Recent studies have demonstrated a periroot sheet covering the root. The outermost layer of this sheet is the Malassez' epithelial layer. Tooth malformations are seen in ectodermal dysplasia and it is believed that the ectodermal layer in the periroot sheet differs in cases of ectodermal dysplasia. Case reports: Three cases of unexpected severe root resorption are demonstrated. Two cases were diagnosed with ectodermal dysplasia and the third appeared with thin, curly hair and absence of eyebrows but no ectodermal diagnosis. In the ectodermal cases, there were severe orthodontically provoked resorptions on the teeth that appeared to be permanent but were possibly primary. In the third case, there was heavy resorption on permanent teeth due to orthodontic treatment. Discussion: The orthodontist should be aware that aggressive resorption can occur in cases not diagnosed with ectodermal dysplasia but with signs of ectodermal deviations, and that tooth morphology, hair, and skin are important to observe before proceeding with treatment.

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