Which term best fits a fixed appliance on teeth?

• A. Removable Appliance
• B. Fixed Appliance
• C. Open Bite
• D. Intrusion

Answer: (B)

In orthodontics, devices placed on teeth can be fixed or removable. A fixed appliance is attached to the teeth with cement or bonding and stays in place, not removable by the patient. This makes it the right term for an appliance that remains on teeth after placement, like braces with brackets and a connecting wire. The other options describe either a bite condition (open bite), a type of tooth movement (intrusion), or a device meant to be taken out by the patient (removable appliance). So the term that fits best is fixed appliance because it precisely identifies an appliance that is permanently attached to the teeth during treatment.