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19.03.2017 | Original Article | Ausgabe 1/2018

Clinical Oral Investigations 1/2018

Evaluation of oral manifestations of patients with mucopolysaccharidosis IV and VI: clinical and imaging study

Zeitschrift:
Clinical Oral Investigations > Ausgabe 1/2018
Autoren:
Renata Quirino de Almeida-Barros, Paula Frassinetti Vasconcelos de Medeiros, Marcella Quirino de Almeida Azevedo, Adriana de Oliveira Lira Ortega, Angela Toshie Araki Yamamoto, Sheyla Kátia Lúcio Dornelas, Patrícia Meira Bento

Abstract

Objective

The aim of this study is to assess oral manifestations in patients with mucopolysaccharidosis IV (MPS IVA) and mucopolysaccharidosis VI (MPS VI).

Materials and methods

Seventeen patients were assessed, nine with MPS IVA and eight with MPS VI, treated at the Medical Genetics Outpatient Clinic of Hospital Universitário Alcides Carneiro (HUAC) in Campina Grande, Paraíba State, Brazil. Assessments included clinical and intraoral examinations, analysis of occlusal function, and panoramic X-rays.

Results

Among all, 64.7% of the patients had unerupted teeth and 52.9% of them had enamel hypoplasia. Regarding the temporomandibular joint, 88.2% of the patients showed flattening of the mandibular condyle, 52.9% showed condylar hypoplasia, and all of them showed decreased mobility. Enamel hypoplasia was observed only in patients with MPS IVA (p < 0.05). On the other hand, only MPS VI patients presented with anterior open bite, restricted mouth opening (p < 0.05), and a higher rate of unerupted teeth, hyperplastic tooth follicle, and condylar defects (p < 0.05).

Conclusions

Enamel hypoplasia was observed only in patients with MPS IVA, whereas anterior open bite was observed only in patients with MPS VI. Abnormal findings in the maxillomandibular complex were more frequent in patients with MPS VI.

Clinical relevance

The relevant frequency of MPS VI and IVA in the sample allows us to compare the changes occurring in both groups of patients, therefore enabling us to further comprehend the oral manifestations in specific types of MPS.

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