European journal of orthodontics · 2026
Open bite malocclusion and orofacial dysfunction in patients with rare diseases.
СтатьяСравнительное исследованиеНазвание и аннотация: Перевод в очереди
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Havner Christina, Mogren Åsa, Sjögreen Lotta, Westerlund Anna
Аннотация
AIM: To compare orofacial dysfunctions (OFD) in individuals with rare diseases, with and without open bite (OB) malocclusion, and to explore the associated symptoms.
PATIENTS AND METHODS: In total, data for 788 individuals representing 164 different rare diseases, were collected from the MHC database for the period of 2013-2019. The inclusion criteria were having a rare disease and having completed the Nordic Orofacial Test-Screening (NOT-S). OB was categorized as anterior OB (AOB), lateral OB (LOB), and severe anterior OB (AOBS). The sample was divided into two groups: 142 with OB (mean age, 14.2 ± 13.0 years; 81 males, 61 females); and 557 with normal vertical relation (NVR) (mean age, 15.1 ± 12.9 years; 292 males, 265 females). OFD was compared between the groups. Items from the NOT-S test were analysed, and the Odds Ratio (OR) for OB was calculated.
RESULTS: The OB prevalence was 18%, with AOB being the most-common sub-type (58%), followed by AOBS (15%) and LOB (13%). Nemaline myopathy was the disease with the highest prevalence rates for OB and AOBS. The OB group had a larger proportion of OFD than the NVR group in 6/12 domains of the NOT-S. Deviant tongue posture was most strongly associated with OB (OR 6.062).
CONCLUSION: Two-thirds of the individuals had OFD, and OB was a common finding (18%). Rare diseases with symptoms of orofacial hypotonia, craniofacial abnormalities and macroglossia show a higher prevalence of OB. A deviant tongue posture showed the highest odds for OB in this group of rare diseases.
PATIENTS AND METHODS: In total, data for 788 individuals representing 164 different rare diseases, were collected from the MHC database for the period of 2013-2019. The inclusion criteria were having a rare disease and having completed the Nordic Orofacial Test-Screening (NOT-S). OB was categorized as anterior OB (AOB), lateral OB (LOB), and severe anterior OB (AOBS). The sample was divided into two groups: 142 with OB (mean age, 14.2 ± 13.0 years; 81 males, 61 females); and 557 with normal vertical relation (NVR) (mean age, 15.1 ± 12.9 years; 292 males, 265 females). OFD was compared between the groups. Items from the NOT-S test were analysed, and the Odds Ratio (OR) for OB was calculated.
RESULTS: The OB prevalence was 18%, with AOB being the most-common sub-type (58%), followed by AOBS (15%) and LOB (13%). Nemaline myopathy was the disease with the highest prevalence rates for OB and AOBS. The OB group had a larger proportion of OFD than the NVR group in 6/12 domains of the NOT-S. Deviant tongue posture was most strongly associated with OB (OR 6.062).
CONCLUSION: Two-thirds of the individuals had OFD, and OB was a common finding (18%). Rare diseases with symptoms of orofacial hypotonia, craniofacial abnormalities and macroglossia show a higher prevalence of OB. A deviant tongue posture showed the highest odds for OB in this group of rare diseases.