International Poster Journal of Dentistry and Oral Medicine



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Int Poster J Dent Oral Med 12 (2010), No. 4     15. Dec. 2010

Int Poster J Dent Oral Med 2010, Vol 12 No 4, Poster 505

Hypohidrotic ectodermal dysplasia: prosthodontic treatment in a paediatric patient

Case report

Language: English

Dr. Mihaela Pauna,
Prosthodontics Department, U.M.F. "Carol Davila", Faculty of Dental Medicine, Bucharest
Assoc. Prof. Dr. Anca Maria Raducanu, Teaching Assistent PhD candidate Ion Victor Feraru,
Paediatric Dentistry Department, U.M.F. "Carol Davila", Faculty of Dental Medicine, Bucharest, Romania
Reghina Anghelescu,
Paediatric Dentist, Private practice, Bucharest, Romania

17-20 June 2009
The 22nd Congress of the International Association of Paediatric Dentistry
Munich, Germany


Ectodermal dysplasia (ED) comprises a large, heterogeneous group of inherited disorders [1, 2], that are defined by primary defects in the development of 2 or more tissues derived from the embryonic ectoderm. [1, 3, 4, 5, 6, 7, 8]
The most common EDs are X-linked recessive hypohidrotic/anhidrotic ED [3, 5, 7, 9]. It has full expression only in males; female carriers show little or no signs of the condition. [2] The goals of the dental treatment are: enhancement of functions (aesthetics, mastication, phonetics) and psychosocial activities. [3].


The aim of this paper is the presentation of the clinical aspects and the prosthetic rehabilitation of 7 years old boy with X-linked recessive anhidrotic ectodermal dysplasia.

Material and Methods

CASE REPORT: His Romanian mother and maternal grandmother are healthy carriers of the ED gene and display some milder clinical manifestations of the disease. The Chinese father and his family are fully healthy.

CLINICAL MANIFESTATIONS: The patient presents typical general, facial and oral clinical features characteristic to the disease. Defective development of structures of ectodermal origin (skin, hair, nails, sweat glands) produces numerous general findings and symptoms, such as lack of perspiration, frequent episodes of hyperpyrexia, thin and fragile nails, chronic respiratory infections, frequent otitis media, epistaxis.

TREATMENT: A simple conventional prosthodontic rehabilitation has been chosen for the enhancement of functions and psychosocial activities. The conical primary maxillary right central incisor was reconstructed with an acrylic crown by an original technique.

Fig. 1a and b: Facial and oral aspects of the mother: some facial distortions and the absence of the maxillary lateral incisors.
Fig. 2: Facial distortions: prominent frontal ridges and chin, brittle and fine hair, a saddle shaped nose, an extended philtrum, an everted lower lip, a horizontal groove on the chin, thick cheeks and large ears, reduced lower face height.
Fig. 3: General features: thin and dry skin, hyperpigmented, appearing rematurely aged, unusual scaling or peeling of the skin, hyper-keratosis and chronic eczema on both palms and soles.
Fig. 4a and b: Oral and radiological features: presence of one primary maxillary cone-shaped tooth, the absence of alveolar processes.
Fig. 5: Partial maxillary removable prosthesis and a total mandibular denture. Fig. 6: Manufacture of the acrylic crown. For an optimum aesthetic result it was made out of a homologous acrylic tooth, carved in order to obtain a veneer which was completed on the oral side with baropolimerysed acrylic resin.
Fig. 7a and b: The patient\'s facial and oral aspect after the completion of treatment; improved masticatory, phonetic and aesthetic functions.


The oral rehabilitation of children with ED is necessary in order to improve the patient's functions, aesthetics as well as psychological condition. This frequently involves a complex prosthetic treatment, which presents a number of difficulties given by the patient's continuing growth, the choice of the appropriate prosthetic appliance as well as the uncooperative attitude of the young patient. The behavioural treatment by the "Tell-Show-Do" technique was necessary before and during the prosthodontic treatment.
After the completion of the prosthodontic treatment our patient had no discomfort and seemed to be adapting well. However, although both he and his mother were informed about the need for periodic recall in order to observe the integration of the prosthesis and replace the dentures as growth occurs, treatment was abandoned.


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  2. Shah KN, Duran-McKinster C, Ectodermal Dysplasia, www.emedicine. com/derm/topic114.htm.
  3. Murdock S, Lee JY, Guckes A, Wright JT, A costs analysis of dental treatment for ectodermal dysplasia, Journal of the American Dental Association, 136(9):1273-76.
  4. Diseases Conditions, Ectodermal Dysplasia, /ectodermal-dysplasia-pictures-images.html.
  5. Lexner MO, Bardow A, Hertz JM, Nielsen LA, Kreiborg S, Anomalies of tooth formation in hypohidrotic ectodermal dysplasia, International Journal of Paediatric Dentistry, 2007, 17(1):1018.
  6. Alpöz AR, Hydrotic Ectodermal Dysplasia (Associated With Numerous Enclused Permanent Teeth Including a Primary Molar), Turkish Journal of Medical Sciences, 1999, 29:7579.
  7. Beydemür MDB, Pedodontic Complete Dentures, Turkish Journal of Medical Sciences, 2002, 32:277-81.
  8. Yenisey M, Guler A, Unal U, Orthodontic and prosthodontic treatment of ectodermal dysplasia - a case report, British Dental Journal, 2004, 196:677-79.
  9. Muzio L, Bucci P, Carile F et all, Prosthetic Rehabilitation of a Child Affected from Anhydrotic Ectodermal Dysplasia: A Case Report, Journal of Contemporary Dental Practice, 2005, 6(3):1-7,

This Poster was submitted by Dr. Mihaela Pauna.

Correspondence address:
Dr. Mihaela Pauna
U.M.F. Carol Davila
Clinica de Protetica Dentara Mobila
Str. Ionel Perlea Nr. 12
Bucuresti, Romania