Twin block before and after
Before and after Twin Block treatment, dentists compare the bite, tooth position, facial profile, and function using clinical records.
The short answer
A Twin Block is a removable functional appliance with upper and lower parts that guide the lower jaw forward during growth. Before treatment, the orthodontist records the bite, tooth positions, facial profile, and growth stage; after treatment, the same features are reassessed.

What is the direct answer?
What does this question mean?
Wear the appliance for the prescribed daily schedule, keep both pieces together, and clean them with cool water and an appliance brush. Bring the appliance to every review and report rubbing, breakage, or a bite that no longer fits.
What can you do next?
Arrange review if the appliance becomes loose, cracked, painful, or impossible to seat. An orthodontic assessment is especially important if growth is nearly complete or the bite changes unevenly.
When should you seek dental care?
Ask which measurements will be compared, how growth affects the expected change, and whether fixed braces or another appliance follows. Ask how missed wear time changes the review plan.
What should you ask the dentist?
Twin Block treatment uses upper and lower acrylic components that meet at guiding blocks.
Frequently asked questions
Jaw posture and tooth position may alter facial appearance during growth, but the amount and direction vary between patients.
Does a before-and-after photo prove the appliance worked?
