Mouth Check — a step-by-step lesson for grown-up and child
This lesson teaches the mouth check as a performance the child already knows: open wide, say "aah," show the doctor what strong teeth and a busy tongue you have.
What is this?
A mouth check is the doctor looking at the teeth, tongue and throat while the child opens wide and holds the "aah" sound.
What does it mean?
Every toddler is a professional "aah"-er — tooth-brushing taught them. The mouth check is the same skill with a new audience; the mirror at home is the rehearsal space.
What does the child need to know?
You need the card, a mirror and a toothbrush. Practice the big open "aah" — wide as a lion, long as a song — then check every stuffed animal’s teeth.
Why this matters
The mouth check is the visit’s most cooperative moment when it is practiced and its most avoidant when it is not. Two mirror sessions buy a perfect real one.
What it teaches
Oral motor control (holding an open jaw), the self-care link (the same open-wide that gets teeth brushed), and performing a skill for a new grown-up.
Words to learn
mouth checkopen wideaahteethtonguelion
Say this to your child
“"Mouth check! Open wide and say AHHH. The doctor sees your teeth and your tongue — what a big lion mouth! Well checked, well done."”
Step by step
- Show the card: "open wide and say ah."
- Mirror practice: lion mouth — wider! Wider! Hold it.
- Sing the "aah" — long, short, squeaky. Make it a game.
- Check the toys: "open wide, teddy! What strong teeth."
- At the visit: "lion mouth for the doctor — big and brave!"
Look closer at the picture
On this card the words "mouth check — open wide and say ah" sit over a doctor looking into a child’s wide-open mouth while the child holds a teddy bear on the lap.
Ask your child
"What do we say at the mouth check?" (aah!) "How wide does the mouth open?" (lion-wide) "What can the doctor see?" (teeth and tongue)
What your child can say or do
Your child might hold lion-mouth at random moments for days, "aah"-check the whole family after dinner, or brush teddy’s teeth with real diligence.
Out in the real world
The dentist says "open wide" too, and so does the school nurse on check-up day. The lion mouth works at all of them.
Try it together
Lion School: the child teaches the toys to open wide — "wider, teddy! Perfect aah!" Then a graduation: every animal earns a "well checked" sticker. Teaching the skill is owning the skill.
Understanding check
Ask: "What do we do for the mouth check?" (open wide, say aah) "How big?" (lion-wide) "What does the doctor see?" (your teeth and tongue)
Staying safe
Only the doctor or dentist looks deep in the mouth — the home game stays at lion-mouth distance. Tongue depressors are the doctor’s tool; the home version needs nothing but "aah."
This lesson pairs with the Mouth Check flashcard in the library — print it, show it, keep it on the fridge. Back to Doctor Visit.