Functional orthodontic treatment
Dental Procedures
≈ ¥2000-8000
(≈ $280-1150)
大约3-6个月（含初诊评估、矫治器制作、佩戴调整及定期复诊）
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Description
Estimated cost for Functional orthodontic treatment at general public hospitals in China is about ¥1400-6400, and at Grade 3A hospitals about ¥2000-8000, varying by hospital tier and region.
Main Uses
Primary purposes include correcting sagittal and vertical jaw discrepancies (e.g., Class II or mild Class III malocclusions) during active growth; modifying abnormal neuromuscular patterns (e.g., tongue posture, lip seal, swallowing); eliminating deleterious oral habits; guiding dental arch development; improving airway function and facial aesthetics; and reducing need for future extractions or surgical intervention. Applicable scenarios: mixed dentition phase, patients with functional shifts (e.g., retruded mandible on closure), mild-to-moderate skeletal discrepancies, and cooperative children aged 6–12 years with documented growth potential.
Normal Range
Functional orthodontic treatment for children is not a laboratory test with numerical values; it is a clinical intervention. Therefore, there is no 'normal range' of quantitative measurements. Instead, success is assessed qualitatively and quantitatively via cephalometric analysis (e.g., ANB angle: 2°–4°, SNB: 78°–80°, SNA: 81°–83°), dental models (e.g., overjet 2–4 mm, overbite 1–3 mm), and functional assessments (e.g., harmonious mandibular posture, absence of oral habits). Treatment timing typically falls between ages 6–12 years, during mixed dentition and peak growth spurts.
Low Values - Possible Causes
Inadequate patient compliance (e.g., insufficient daily wear time <12–14 hrs), premature cessation of therapy before skeletal maturation, incorrect appliance selection or poor fit, untreated persistent oral habits (e.g., thumb sucking, mouth breathing), and delayed initiation beyond the optimal growth window (e.g., after age 12 in most females or 14 in males).
High Values - Possible Causes
Excessive or prolonged appliance use beyond growth completion leading to iatrogenic overcorrection, inappropriate force application causing unwanted dentoalveolar tipping rather than skeletal change, concurrent untreated airway obstruction exacerbating compensatory mandibular positioning, rapid maxillary expansion without coordinated functional guidance, and misdiagnosis of skeletal Class III as functional when it is actually true prognathism.