Dr. Jamie Kim | Pediatric Airway-Focused Orthodontist on Instagram: "🔑 How to Turn Your Child’s Expander (It’s Easier Than You Think!) 1️⃣ Find the Keyhole Have your child lie back with good lighting. Look for the small hole in the center of the expander. 2️⃣ Insert the Key Straight In Gently slide the key into the hole until it’s secure. 3️⃣ Push the Key Toward the Back of the Mouth You’ll see the next hole rotate into view. That’s how you know the turn is complete. 4️⃣ Remove the Key Carefull