Orthodontic Assistant Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

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What is the name of the head-stabilizing device used in cephalometrics?

Cephalostat

The head-stabilizing device used in cephalometrics is known as the cephalostat. This device plays a critical role in orthodontics, as it helps in obtaining standardized lateral and frontal cephalometric radiographs. By stabilizing the patient's head in a fixed position, the cephalostat ensures that the radiographs are consistent and accurate, allowing for proper diagnosis and treatment planning.

The cephalostat is specifically designed to maintain head positioning during imaging, which is essential for measuring skeletal and dental relationships. Precise measurements are necessary for making accurate assessments of angular and linear dimensions related to the patient's oral and facial structures.

In contrast, other options serve different purposes within orthodontic treatment. Cervical headgear is used for molar anchorage and to correct specific bite issues. Orthodontic brackets are components of braces that hold archwires in place, while a palatal expander is utilized to widen the upper jaw. Each of these devices has its unique functions and applications that do not relate directly to the stabilization required for cephalometric imaging.

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Cervical headgear

Orthodontic bracket

Palatal expander

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