Tahereh Hosseinzadeh Nik; Fatemeh Gorjizadeh
Abstract
Hemifacial macrosomia (HFM) is the second most common facial congenital anomaly. Deficiency of hard and soft tissue on one side of the face is its obvious clinical finding, which can cause facial asymmetry. Hemifacial microsomia is described in three grades of severity, although grade II has two subgroups ...
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Hemifacial macrosomia (HFM) is the second most common facial congenital anomaly. Deficiency of hard and soft tissue on one side of the face is its obvious clinical finding, which can cause facial asymmetry. Hemifacial microsomia is described in three grades of severity, although grade II has two subgroups (mild and severe). Many anomalies can be misdiagnosed with different grades of Hemifacial microsomia, e.g. Treacher Collins syndrome, traumatic postnatal deformity, Goldenhar syndrome, hemi mandibular elongation, Parry-Romberg syndrome, juvenile rheumatoid arthritis, Nager acrofacial dysostosis syndrome, post axial acrofacial dysostosis, muscle dysfunction, branchio-oto-renal syndrome and Maxillofacial dysostosis. The first step to treating patients with HFM, is an accurate diagnosis. Decision making for treatment planning of patients with HFM, is highly dependent on the severity of the deformity and patients age. In mild grades of the anomaly, functional therapy can improve facial and occlusal symmetry when they are young, but in more severe grades, imposition of orthopedic treatment, may be undesirable and waste of time. Early surgical interventions to encourage the growth in the affected condyle may be helpful in severe cases; however, consultation with the surgeon is advised to determine the patients who need early surgery. Distraction osteogenesis is a controversial treatment modality, which still needs more long-term studies.
Mohammad Karim Soltani; Amirfarhang Miresmaeili; Bahareh Javanshir; Mojgan AkbarZadeh
Abstract
background and aim: functional appliances with various designs have been introduced in the treatment of Class II malocclusions. The aim of this study was to evaluate dentoskeletal effects of a modified bionator (FA) and Twin Block (TB) functional appliance in treatment of skeletal Class II malocclusion.Method ...
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background and aim: functional appliances with various designs have been introduced in the treatment of Class II malocclusions. The aim of this study was to evaluate dentoskeletal effects of a modified bionator (FA) and Twin Block (TB) functional appliance in treatment of skeletal Class II malocclusion.Method and material: in this retrospective study 30 treated cl II patients with overjet greater than 4mm have been selected from each of two private offices .in each office either FA or TB were used. Pre-treatment and post-treatment lateral cephalograms were digitized and traced with Dolphin Imaging software. ANCOVA and paired T test were used for analysis with SPSS software (19).Results: FA group consisted of 17 girls and 13 boys(mean age: 9.53± 1.1), TB group consisted of 12 boys and 18 girls(mean age: 10.26 ±.944 ) .ANB angle and overjet were reduced significantly in both groups. (p=.000) Mandibular body length demonstrated a significant increase in both groups( 3.06±4.98mm with TB and 3.03±5.52mm with FA ). In Both appliances significant retrusion of upper lip occurred as a result of decrease in overjet (TB=002, FA=.000). No statistical significant difference were found between two appliances.Conclusions: Treatment with both appliances resulted in correction of Class II discrepancy, reduction of overjet, and retrusion of upper lip. No significant dento-skeletal differences were observed between the 2 appliances.
Tahere Hossein zadeh Nik; Fariba Esmaeilnia Shirvani
Abstract
Obstructive sleep apnea (OSA) is a physical disorder that leads to repetitive obstruction of upper air way, causing in 30 or more apneic (the pause of airflow at the mouth and nose for more than 10 seconds) episodes during sleep. It is caused by the repeated collapse or narrowing of the pharyngeal ...
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Obstructive sleep apnea (OSA) is a physical disorder that leads to repetitive obstruction of upper air way, causing in 30 or more apneic (the pause of airflow at the mouth and nose for more than 10 seconds) episodes during sleep. It is caused by the repeated collapse or narrowing of the pharyngeal walls due to partial or complete obstruction of the upper airway. Treatment for sleep apnea include weight loss, keeping off alcohol, positional therapy, oral appliances, continuous positive airway pressure (CPAP). Oral appliances have proven to be useful, noninvasive and easy to use. Patients prefer oral appliances and mandibular advancement appliances to CPAP. Our study concluded that oral appliances may assist in the management of OSA.