Case Type:
Class II Div I - Extraction of upper 1st and lower 2nd premolars
Problem List:
Skeletal hyperdivergency
Upper incisor proclination
Extrusion of upper/lower incisors
End-on Class II buccal occlusion
Severe upper and lower arch length deficiency
Pre-pubescent, with growth remaining
Treatment Plan:
Extraction of upper 1st and lower 2nd premolars
Correction of upper and lower crowding
Reciprocal closure of extraction spaces
Avoid Cl. II elastics due to excessive incisor/gingival display
Forsus Springs™ as needed to augment anchorage
-6˚ torque bracket on 32 for additional labial root torque
CSF on the severely rotated upper incisors (UL2-UR2)
Removable upper and fixed lower retention
Maxillary arch:
Extract 14, 24
Alignment with 0.016 Supercable followed by 0.014 Nickel Titanium and then 0.016 Nickel Titanium. Leveling and initiation of torque via 0.018 D Wire, followed by 0.017 x 0.022 SPEED Wire in Nickel Titanium to finalize torque correction and idealize archform. Upper arch space consolidation was accomplished using 0.018 x 0.018 x 0.018 Hills Dual Geometry Wire. The upper arch was finished using 0.017 x 0.022 SPEED Wire in Stainless Steel.
Mandibular arch:
Extract 35, 45
Alignment with 0.016 Supercable followed by 0.014 Nickel Titanium and then 0.016 Nickel Titanium. Leveling and initiation of torque via 0.018 x 0.018 Nickel Titanium D Wire, followed by 0.017 x 0.022 SPEED Wire in Nickel Titanium to finalize torque correction and idealize archform. 0.018 x 0.018 Stainless Steel D Wire with reverse curve of Spee was then placed to complete bite opening, followed by 0.017 x 0.022 SPEED Wire in Stainless Steel to finish.
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