Facebow Record & its Transfer | Clinical DEMO

Summary

This video tutorial provides a comprehensive guide on how to record and transfer a facebow to an articulator, using the Hanau spring facebow. It walks viewers through each step, including adjusting the facebow components, aligning the midline, securing the edentulous fork, and ensuring patient comfort. The video also covers the crucial transfer process to the articulator, utilizing indirect transfer jigs and stabilizers. With detailed instructions on equipment setup, patient interaction, and final transfer techniques, this video is an essential resource for dental professionals looking to master the facebow procedure.

Takeaways

• 😀 The Hanau spring facebow is used to record and transfer the patient's dental measurements to the articulator.
• 😀 Begin by adjusting the upper rim for lip support and determining the visibility of the rim.
• 😀 Align the midline of the upper rim to help place the edentulous fork correctly.
• 😀 The fork should be positioned at least 2-3 mm above the lower end of the upper rim and sealed in place with sticky wax.
• 😀 When inserting the facebow in the patient's mouth, check for midline alignment from the back at the 12 o'clock position.
• 😀 The U-frame has a locking mechanism with three thumb screws that need to be loosened during setup.
• 😀 Once assembled, ensure that the patient's bite is stable by placing the lower rim and securing the locking unit into the edentulous fork.
• 😀 The patient should help with inserting the earpiece, and the orbital pointer should align with the infraorbital notch for accurate positioning.
• 😀 Lock the thumb screws to secure the facebow, and make sure the orbital pointer and transfer rod are passive during the setup.
• 😀 Transfer the facebow record to the articulator using an indirect transfer jig, ensuring that the cast stabilizer keeps the rim and cast in position during mounting.

Q & A

What is the primary purpose of the Hanau spring facebow in this demonstration?

The primary purpose of the Hanau spring facebow in this demonstration is to record the patient's jaw position and transfer this information accurately to the articulator for further dental procedures.

Why is adjusting the upper rim for lip support important?

Adjusting the upper rim for lip support is essential to ensure patient comfort and proper positioning of the facebow during the recording process.

What is the significance of marking the midline on the upper rim?

Marking the midline on the upper rim helps align the edentulous fork with the patient’s anatomical midline, ensuring precise transfer of the facebow record to the articulator.

What role does sticky wax play during the facebow assembly?

Sticky wax is used to secure the edentulous fork in place on the facebow to prevent it from moving during the transfer process.

Why is it suggested to check the midline alignment from the 12 o'clock position?

Checking the midline alignment from the 12 o'clock position helps ensure that the facebow is accurately positioned and aligned with the patient's anatomical midline, making the process easier and more accurate.

What components make up the U-frame, and what is their purpose?

The U-frame consists of the locking unit, thumb screws, and the transfer rod. It helps secure the facebow and facilitates the transfer of the facebow record to the articulator.

What is the importance of oiling the components during the facebow assembly?

Oiling the components ensures smooth movement and prevents any friction that could disrupt the assembly and transfer process.

What is the role of the orbital pointer in the facebow procedure?

The orbital pointer is used to align with the patient's infraorbital notch during the procedure, ensuring proper positioning of the facebow assembly in relation to the patient's anatomy.

What is the difference between the direct and indirect transfer methods in facebow transfer?

In the direct transfer method, the U-shape frame is removed, and the facebow is transferred directly to the articulator. In the indirect transfer method, an indirect transfer jig is used, which helps in more precise placement of the facebow record on the articulator.

What is the purpose of the rim stabilizer during the facebow transfer to the articulator?

The rim stabilizer helps stabilize both the upper rim and the cast during the transfer process, ensuring accurate mounting on the articulator.