OPR · JCA
JCA · Anterior Crossbite with Open Bite Appliance
For cases in which anterior reverse overjet and open bite occur together. Dental positioning, tongue guidance and perioral muscle function features provide support for staged occlusal adjustment.
Design & structure
Combines adjustment of dental relationships with tongue-position and perioral muscle function management. The design provides guidance toward appropriate positive overjet and overbite while addressing reverse overjet.
Clinical use & follow-up
Marked skeletal discrepancies require further assessment of whether combined treatment is needed. Follow the clinician’s individualized wear plan.
Sizes & selection
| Model / size | Reference age / selection |
|---|---|
| JCA-M · Medium | 6–9 years |
| JCA-L · Large | 9–12 years |
Evaluate dental and functional factors, persistent sucking habits and abnormal resting tongue position before use.
Reference ages are selection guides, not a treatment prescription. Final selection, wear and review follow clinical assessment and the applicable product instructions.
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