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:: Volume 22, Issue 2 (Foll Text in Persian 2010) ::
2010, 22(2): 115-119 Back to browse issues page
Systemic manifestations and oral findings in hypophosphatasia: A case report
Abolfazl Shafiei-Soork * , Saeid Baghi , Azadeh Edalat , Mehran Mortazavi
Postgraduate Student, Department of Paediatric Dentistry, School of Dentistry, Shiraz University of Medical Sciences. Shiraz, Iran. , shafieiab@yahoo.com
Abstract:   (9874 Views)

  Systemic manifestations and oral findings in hypophosphatasia: A case report

 

 

  Dr. Shafiei-Soork A., 1 Dr. Baghi S .,1 Dr. Edalat A .,2 Dr Mortazavi M .3

  

  1 Postgraduate Student , Department of Paediatric Dentistry, School of Dentistry, Shiraz University of Medical Sciences. Shiraz, Iran. 2 Assistant Professor, Department of Paediatric Dentistry, School of Dentistry, Shiraz University of Medical Sciences. Shiraz, Iran. 3 Associate Professor, Department of Paediatric Dentistry, School of Dentistry, Shiraz University of Medical Sciences. Shiraz, Iran.

  

  (Received 3 March, 2010 Accepted 19 July, 2010)

  

  Abstract

  

  Introduction : Hypophosphatasia is a rare inherited disorder characterized by deficient activity of tissue non-specific alkaline phosphatase (found in the bone, liver and kidney) which leads to abnormal bone and tooth mineralization. The symptoms are highly variable in their clinical manifestation, ranging from stillbirth without mineralized bone to early loss of primary teeth without bone symptoms. The diagnosis is based on low levels of serum alkaline phosphatase and increased serum or urine concentrations of phosphoethanolamine, pyridoxal 5’-phosphate and inorganic pyrophosphate. Six clinical forms of Hypophosphatasia are currently recognized: prenatal (lethal), prenatal benign, infantile, childhood, adult and odontohypophosphatasia .

  Case report : A 27-month-old girl was referred to the Paediatric Dentistry Department of Shiraz Dental School with chief complaint of spontaneous loosening and shedding of anterior deciduous teeth. In clinical examination, it was noticed that, teeth number 61, 62, 71, 72 and 81 were absent. There was no sign of gingival inflammation. According to the height and weight curves, growth of patient was below the normal rate. About 1 year delay in the date of her standing or walking capability was recorded in the patient’s medical history. Also there was a history of foot pain and early fatigue. CBC, serum alkaline phosphatase and urine phosphoethanolamine tests were requested for the patient. Results showed decreased serum alkaline phosphatase and increased urine phosphoethanolamine. In histological survey of exfoliated teeth, the absence of cementum on root surfaces was detected. Also, the patient’s physician reported skeletal deformities and defective mineralization in her hands and feet.

  Key words : Hypophosphatasia - Alkaline phosphatase - Premature teeth loss.

  

  Corresponding Author : Dr. Shafiei-Soork A ., Postgraduate Student , Department of Paediatric Dentistry, School of Dentistry, Shiraz University of Medical Science. Shiraz, Iran.

  

  e.mail: Shafieiab@yahoo.com i

 

Keywords: Hypophosphatasia, Alkaline phosphatase, Premature teeth loss.
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Type of Study: case report | Subject: Pediatric Dentistry
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Shafiei-Soork A, Baghi S, Edalat A, Mortazavi M. Systemic manifestations and oral findings in hypophosphatasia: A case report. The Journal of Islamic Dental Association of IRAN (JIDA) . 2010; 22 (2) :115-119
URL: http://jida.ir/article-1-746-en.html


Volume 22, Issue 2 (Foll Text in Persian 2010) Back to browse issues page
مجله دندانپزشکی جامعه اسلامی دندانپزشکان Journal of Islamic Dental Association of Iran

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