Level of evidence: High
Suitable for ages: 6+ years old (or when first permanent incisors erupt)
Indications: External stimuli causing a dental Class II incisor relationship; patient awareness and motivation of the incorrect habit
Contraindications: Patient not interested in correcting habit
Treatment Objectives and Biomechanics
- Removal of habits (thumb or digit sucking, lip biting etc.)
- Removal of lower lip trap
Appliances
- Habit correction: Hayrake, Blue Grass appliance, Habit crib, finger attachment devices
- Lower lip trap correction: partial fixed banding, lip bumper, removable appliances
