Skeletal Class III with nonsurgical treatment｜【Chris Chang Ortho】CC800

[case report]
This presentation described a skeletal CIII case with anterior crossbite treated non-surgically with self-ligation system and other auxiliaries, including CIII elastics, bite turbos and BS screws.
本篇報告描述了一個CIII合併前牙錯咬的案例，透過自鎖式矯正系統和其他輔助工具，如CIII elastics, bite turbos 和BS screws來矯正。

[@Behwashy]

Top notch 👌👌

[@marcelbd777]

Thanks for sharing 🙏🏻❤❤

[@ChrisChangOrtho]

Thank you for your watching!

[@عبدالرحمنابوسنينة-د3ص]

Too much retroded lower incisor , it is staple result ?

[@ChrisChangOrtho]

As far as we follow up, lower incisors are still stable, we'll keep following this case.

[@SM-se9oq]

L1 within biologic width (bone housing) ?

[@helenecreteur8275]

What is the tongue blade for?

[@sheenkreata]

To procline the upper incisors

[@son.tse369]

How do you control molar intrusion in lower arch when using bss assisted retraction ?

[@ChrisChangOrtho]

When using BSS screw in retracting the madible, the retraction force will not pass through the mandibular center of resistance; thus creating a counterclockwise rotation of the mandibular arch, molar tipping back and leads to a posterior open-bite. We will position the screw head at the level of bracket slot as even as possible. However, it can be corrcted through intermaxillary elastics. Also, through the patients' chewing force after debonding will also settle the occlusion.

[@son.tse369]

@@ChrisChangOrtho what are the limits for full mandibular arch distalisation ? Does the lower incisors undergo fenestration/ outside the alveolar bony housing ?

[@thaweephongkumluewong4662]

Is this Damon Q or not?

[@ChrisChangOrtho]

Yes! It is Damon Q.