Abd Ellah, M., Abbas, F., Khamis, M., Abdel Wahab, N., Ekram, A. (2020). UPPER AIRWAY VOLUMETRIC CHANGE FOLLOWING THE USE OF TWO CAD/CAM ORAL APPLIANCES FOR TREATMENT OF OBSTRUCTIVE SLEEP APNEA. test, 45(2), 44-51. doi: 10.21608/adjalexu.2020.86768
Mervat E. Abd Ellah; Faten S. Abbas; Mohamed M. Khamis; Nashwa H. Abdel Wahab; Amr M. Ekram. "UPPER AIRWAY VOLUMETRIC CHANGE FOLLOWING THE USE OF TWO CAD/CAM ORAL APPLIANCES FOR TREATMENT OF OBSTRUCTIVE SLEEP APNEA". test, 45, 2, 2020, 44-51. doi: 10.21608/adjalexu.2020.86768
Abd Ellah, M., Abbas, F., Khamis, M., Abdel Wahab, N., Ekram, A. (2020). 'UPPER AIRWAY VOLUMETRIC CHANGE FOLLOWING THE USE OF TWO CAD/CAM ORAL APPLIANCES FOR TREATMENT OF OBSTRUCTIVE SLEEP APNEA', test, 45(2), pp. 44-51. doi: 10.21608/adjalexu.2020.86768
Abd Ellah, M., Abbas, F., Khamis, M., Abdel Wahab, N., Ekram, A. UPPER AIRWAY VOLUMETRIC CHANGE FOLLOWING THE USE OF TWO CAD/CAM ORAL APPLIANCES FOR TREATMENT OF OBSTRUCTIVE SLEEP APNEA. test, 2020; 45(2): 44-51. doi: 10.21608/adjalexu.2020.86768

UPPER AIRWAY VOLUMETRIC CHANGE FOLLOWING THE USE OF TWO CAD/CAM ORAL APPLIANCES FOR TREATMENT OF OBSTRUCTIVE SLEEP APNEA

Alexandria Dental Journal
Article 8, Volume 45, Issue 2, August 2020, Pages 44-51    PDF (864.67 K)
Document Type: Original Article
DOI: 10.21608/adjalexu.2020.86768
Authors
Mervat E. Abd Ellah* 1; Faten S. Abbas2; Mohamed M. Khamis2; Nashwa H. Abdel Wahab3; Amr M. Ekram4
1Assistant lecturer of Removable Prosthodontics, Faculty of Dentistry, Alexandria University
2Professor of Removable Prosthodontics, Faculty of Dentistry, Alexandria University
3Professor of Chest Diseases, Faculty of Medicine, Alexandria University
4Oral and Maxillofacial Surgery consultant, Faculty of Dentistry, Cairo University
Abstract
Introduction: Obstructive sleep apnea (OSA) is a condition in which there is repetitive and intermittent occlusion of the upper airway (UA) during sleep. OSA can be treated through; continuous positive airway pressure (CPAP), surgery, or oral appliances. Mandibular Advancement Appliance (MAA) is considered a valid alternative, which can be the first choice in simple snorers and mild-moderate OSA. MAA can be either custom-made or non-custom-made, one-piece or two-piece, titratable or non-titratable. While Monoblock designs permit no mouth opening, two-piece appliances vary in permissible lateral jaw movement and in the coupling mechanisms which attach the two plates together.
Objectives: measuring the change in UA volume after the use of two different designs of MAA (Monoblock and Biblock)
Materials and methods: Twenty patients with diagnosed OSA were divided randomly into two equal groups: Monoblock group ; received Monoblock MAA fabricated using CAD/CAM technique at different advancement levels; 50% then 75% of maximum advancement, Biblock group; received Biblock MAA fabricated using CAD/CAM technique at different advancement levels; 50% then 75% of maximum advancement. UA volume of all patients were evaluated after three months of acclimatization of each stage of advancement through Cone-Beam Computed Tomography (CBCT).
Results: Biblock group showed statistically significant increase in UA volume at 75% mandibular advancement level, compared to Monoblock group (p=.001). There was statistically significant increase in UA volume percentage change from baseline to 50% advancement (p=.016), and also from baseline to 75% advancement (p=.001) in favor to Biblock MAA.
Conclusions: Both Monoblock and Biblock MAA produced statistically significant increase in UA volume of OSA patients. Biblock MAA with elastics presented statistically significant favorable increase in UA volume in relation to Monoblock MAA.
Keywords
Sleep Apnea; biblock appliance; mandibular advancement; airway measurement; monoblock appliance
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