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Quintessence Publishing: Journals: OHPD


Oral Health & Preventive Dentistry

Edited by Anton Sculean, Poul Erik Petersen, Avijit Banerjee

ISSN (print) 1602-1622 • ISSN (online) 1757-9996


Summer 2010
Volume 8 , Issue 2

Pages: 139 - 142
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Maroteaux-Lamy Syndrome: Orofacial Features After Treatment by Bone Marrow Transplant

Guimaraes, Maria do Carmo Machado / de Farias, Shirley Martins / Costa, Ana Maria / de Amorim, Rivadávio Fernandes Batista

Purpose: The objective of the present study was to emphasise the oral and dental findings of a male patient with the Maroteaux–Lamy syndrome who successfully underwent bone marrow transplantation (BMT) at the age of 22 months. Case Report: A 15-year-old boy was referred to the Dentistry Division of the Catholic University of Brasília, Brazil, for dental diagnosis. General characteristics of the Maroteaux–Lamy syndrome, such as a large head, a short neck, corneal opacity, an open mouth with macroglossia, enlargement of the skull and a long anteroposterior dimension, were observed. The patient had received the benefit of a BMT at an early stage. Therefore, characteristics were presented in a moderate form, except for the skeletal symptoms. Discussion: Maroteaux–Lamy syndrome, also known as mucopolysaccharidosis type VI, is a lysosomal storage disorder that is caused by a deficiency of arylsulphatase B, which leads to an accumulation of dermatan sulphate in tissues and its increased excretion in urine. The deposition of mucopolysaccharides leads to a progressive disorder involving multiple organs. It is a rare condition that is inherited as an autosomal recessive trait. The characteristic features of this disease include retardation in growth, a large head, a short neck, corneal opacity, typical facies and spinal abnormalities. The main dental findings of this syndrome include gingival hyperplasia, hypertrophy of the maxillary alveolar ridge, macroglossia, unerupted dentition, malocclusions and dentigerous cyst-like follicles. BMT is a therapeutic treatment that is given to permanently replace any disorder caused due to the deficiency of enzymes in patients with storage diseases.

Keywords: Maroteaux–Lamy syndrome, mucopolysaccharidosis VI, orofacial features

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