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Clin Oral Investig ; 17(2): 475-82, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22562077

RESUMO

OBJECTIVES: This study aimed to assess possible dental side effects associated with long-term use of an adjustable oral appliance compared with continuous positive airway pressure (CPAP) in patients with the obstructive sleep apnea syndrome and to study the relationship between these possible side effects and the degree of mandibular protrusion associated with oral appliance therapy. MATERIALS AND METHODS: As part of a previously conducted RCT, 51 patients were randomized to oral appliance therapy and 52 patients to CPAP therapy. At baseline and after a 2-year follow-up, dental plaster study models in full occlusion were obtained which were thereupon analyzed with respect to relevant variables. RESULTS: Long-term use of an oral appliance resulted in small but significant dental changes compared with CPAP. In the oral appliance group, overbite and overjet decreased 1.2 (±1.1) mm and 1.5 (±1.5) mm, respectively. Furthermore, we found a significantly larger anterior-posterior change in the occlusion (-1.3 ± 1.5 mm) in the oral appliance group compared to the CPAP group (-0.1 ± 0.6 mm). Moreover, both groups showed a significant decrease in number of occlusal contact points in the (pre)molar region. Linear regression analysis revealed that the decrease in overbite was associated with the mean mandibular protrusion during follow-up [regression coefficient (ß) = -0.02, 95 % confidence interval (-0.04 to -0.00)]. CONCLUSIONS: Oral appliance therapy should be considered as a lifelong treatment, and there is a risk of dental side effects to occur. CLINICAL RELEVANCE: Patients treated with the oral appliance need a thorough follow-up by a dentist or dental-specialist experienced in the field of dental sleep medicine.


Assuntos
Oclusão Dentária , Aparelhos Ortodônticos , Apneia Obstrutiva do Sono/terapia , Dente Pré-Molar/patologia , Pressão Positiva Contínua nas Vias Aéreas , Dente Canino/patologia , Feminino , Seguimentos , Humanos , Registro da Relação Maxilomandibular/métodos , Estudos Longitudinais , Masculino , Má Oclusão/classificação , Má Oclusão/etiologia , Mandíbula/patologia , Avanço Mandibular/instrumentação , Pessoa de Meia-Idade , Modelos Dentários , Aparelhos Ortodônticos/efeitos adversos , Sobremordida/classificação , Sobremordida/patologia , Estudos Prospectivos , Fases do Sono/fisiologia , Ronco/terapia
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