Class I Anteroir Open Bite

CCO Case File: Class I, Anterior Open Bite, Extraction/ Male 14.9 yrs.

Author: Dr. Antonino Secchi

Initial extraoral photos.
Initial extraoral photos.

 

Intraoral photos before treatment.
Intraoral photos before treatment.

 

Secchi Case 4 Pre Tx

Case summary:
14:9 yo Male with Class I, Anterior Open Bite malocclusion. His vertical pattern is mildly high, his sagittal pattern is mildly Class II and his transverse dimension is normal. His anterior open bite was due a thumb sucking habit he had as a child. Due to his protruded lips, lack of mental sulcus definition and lower crowding, I decided to extract four premolars (see details at the end).

Tx Strategy by Stages:
Stage I: leveling and aligning taking advantage of the “passive space closure”.
Stage II: Coordinate upper and lower arches, consolidate all remaining spaces and finishing leveling the occlusal plane.
Stage III: Achieve optimal intercuspation of the buccal segment using vertical triangular elastics.

Appliance:
In-Ovation ‘R’ CCO System

Wire Sequence:
Stage I: 0.014” Sentalloy AccuForm Medium.
0.018” Sentalloy AccuForm Medium.
0.020” x 0.020” Bioforce AccuForm Medium.
Stage II: 0.019” x 0.019” SS AccuForm Medium.
Stage III: 0.019” x 0.019” Braided AccuForm Medium.

Auxiliaries:
Elastics 3/16” 6oz (Thailand).
Elastics 3/16” 8oz (Africa).

 Secchi Case 4 Stage 1AStage I. In-Ovation ‘R’ CCO System with upper and lower 0.014” Sentalloy AccuForm Medium wires.

Secchi Case 4 Stage 1BStage I. In-Ovation ‘R’ CCO System with upper and lower 0.018” Sentalloy AccuForm Medium wires. 8 weeks in treatment.

Secchi Case 4 Stage 1CStage I. Upper and lower 0.020” x 0.020” Bioforce AccuForm Medium wires. 16 weeks in treatment.

Secchi Case 4 Stage IIAStage II. Upper and lower 0.019” x 0.025” ss. AccuForm Medium wires. Upper and lower remaining spaces were consolidated using power chain and short Class II elastics 3/16” 6oz.

Secchi Case 4 Stage IIBStage II. Upper and lower 0.019” x 0.025” ss. AccuForm Medium wires. Upper and lower occlusal planes leveled and paralleled. All spaces are closed. Vertical triangular elastics 3/16” 6oz to improve intercuspation.

Secchi Case 4 Stage IIIStage III. Upper 0.019” x 0.025” Braided AccuForm Medium wire and vertical triangular elastics 3/16” 6oz or 8 oz.

Secchi Case 4 FinalIntraoral final photos.

Extraoral final photos.
Extraoral final photos.

 

Intraoral photos 1year post Tx.
Intraoral photos 1year post Tx.

 

Secchi Case 4 Post Tx

If you liked this article you might also like Pseudo Class III Malocclusion by Dr. Antonino Secchi.

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