26/05/2026
Sometimes, clinical practice teaches us lessons beyond textbooks.
This was one such case.
A 19 years old patient presented with an almost 13 mm overjet and nearly zero visibility of the lower teeth. Considering the age and the fact that growth was thought to be almost completed, the conventional plan would usually lean towards fixed functional appliances — or even surgical correction in severe cases.
However, due to financial limitations and a guarded prognosis, we decided to give one last attempt with a functional appliance: the Clark's Twin Block followed by Fixed orthodontic therapy (braces).
And to our surprise… it worked beautifully.
The overjet reduced from nearly 13 mm to around 2–3 mm, with remarkable improvement in facial profile, smile balance, arch coordination, and airway support.
This case reminded me of something important:
Not every patient follows the textbook.
And not every textbook limitation applies equally to every patient.
While literature often suggests limited skeletal response after the mid-teen years, we can still observe significant dentoalveolar adaptation and functional correction even up to 18–19 years in selected cases.
Yes — there was some initial speech difficulty and discomfort.
But the transformation achieved with such a simple appliance and minimal invasiveness was truly rewarding.
What I love most about functional appliances is that when used correctly, they can sometimes create results that resemble outcomes of fixed functional therapy — and occasionally even mimic the aesthetic improvement seen with orthognathic correction.
A simple appliance.
Minimal intervention.
Life-changing confidence.
Cases like these remind us why we continue learning, believing, and trying.
