European College of Orthodontics: Commission of Affiliation and Titularisation.

Unlabelled: Date of birth: 8 May 2000; sex: female. A.

Pretreatment Records: 9 years 9months; 4/2010.

Diagnosis: Angle Class I. II with ectopic 13, 23; mesial tipping of the roots of 12-22 and space opening at 12-22. Lack of space in 13 and 23 areas. Early loss of 53-63 due to undermining resorption and mesial migration of deciduous molars and first molars. Lower anterior crowding. Deep bite.

Treatment Plan: Distalization of the upper molars and premolars. Space opening for alignment of 13-23; Appliances and devices: cervical headgear; lip bumper; multibracket appliance. B.

Post-treatment Records: 11/2013; 13 years 5months.

Duration Of Active Treatment: 42 months (brackets: 24 months). A Cl. I relationship with canine guidance has been achieved. The overjet measures 2mm, and the overbite 1mm. The second molars are not fully erupted. The upper incisors are slightly protruded. The profile is well-balanced.

Retention: 2/2013. Bonded 3-3 retainer in the upper and lower jaws, splint retainers for nighttime use. C.

Post-retention Records: (1 year minimum): 6/2015; 15 years 1month. The result is stable. The overbite has increased to 2mm. Inclination of upper incisors has decreased by 2°. All wisdom teeth are planned for extraction. As long as the patient is willing to keep her retainers. The splint aligners are already worn irregularly.