ArticleClinical, cosmetic and investigational dentistry2026
A Modified Expandable Headgear-Activator for Combined Adenotonsillar Hypertrophy and Bimaxillary Constriction: Insights from a 9-Year Follow-Up.
Article in Clinical, cosmetic and investigational dentistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
This report describes the successful long-term, non-extraction orthodontic management of an adolescent with high-angle skeletal Class II malocclusion, bimaxillary constriction, lip incompetence, and chronic mouth breathing with adenotonsillar hypertrophy. Treatment initiated at CVMS II employed a patented headgear-activator appliance to achieve concurrent vertical control, mandibular advancement, and arch expansion, followed by fixed therapy. Five-year clinical follow-up with cephalometric evaluation at the end of active treatment confirmed significant skeletal correction, with the ANB angle reducing from 4.4° to 3.0°, while vertical dimensions remained stable (SN-MP: 41.8° to 41.3°; FH-MP: 34.3° to 32.2°). Transverse expansion resolved the posterior crossbite, transforming constricted arches into harmonious ovoid forms. Lip seal and a straight facial profile were achieved without surgical airway intervention. These outcomes suggest that early functional orthopedic treatment emphasizing three-dimensional control prior to fixed therapy can yield stable skeletal, occlusal, and aesthetic results while circumventing extractions. The prolonged soft tissue adaptation observed further underscores the necessity of extended follow-up for accurate assessment of orthopedic stability.
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