Montagem articulador semi ajustável

Summary

In this detailed video, Professor Adriana Maleiros demonstrates the process of mounting models on an adjustable articulator in dental practice. She covers important steps such as adjusting the Bennet angle, securing the superior and inferior models, and properly positioning the facial arc for accurate alignment. The process also includes using a special type of plaster for a precise fit, ensuring stability and preventing displacement. Throughout the video, Adriana offers tips for efficient and effective assembly, emphasizing the importance of proper alignment and careful handling to avoid errors.

Takeaways

• 😀 Adjust the articulator by setting the Guide's inclination to 30º and the Bennet angle to 15º to begin the assembly process.
• 😀 Use a spacer to ensure the proper distance between the components, and ensure the condyles are positioned in the middle for optimal alignment.
• 😀 When assembling the superior model, reset the Bennet angle to 0º for better support and to prevent displacement during assembly.
• 😀 The facial arc must be removed carefully, ensuring it’s loose enough to avoid damaging the articulator.
• 😀 Removing the incisal pin is essential when attaching the facial arc to the upper section of the articulator.
• 😀 The articulator's guide projections and the facial arc's ogive holes must align to ensure proper assembly.
• 😀 To prevent misalignment, separate the upper and lower sections of the articulator, assembling the facial arc first onto the upper section.
• 😀 Secure the facial arc by tightening the screws on the upper part, ensuring stability and preventing any displacement.
• 😀 The superior branch of the articulator should rest on the horizontal arch of the facial arc to maintain proper alignment.
• 😀 Use a firm consistency of plaster to attach the model to the articulator, ensuring a strong connection without excess material that could displace the model.
• 😀 After the plaster sets, reattach the incisal pin and adjust the Bennet angle to 15º for the final assembly of the lower model, ensuring proper registration of the vertical dimension.

Q & A

What is the first step in assembling the adjustable articulator?

The first step is to standardize the articulator by setting the inclination of the Guide at 30° and the Bennett angle at 15°.

Why is the Bennett angle set to zero when mounting the upper model?

The Bennett angle is set to zero to ensure that the upper and lower parts of the articulator remain connected, preventing any displacement during the model assembly.

How is the facial arch mounted on the articulator?

The facial arch is mounted by first removing the part used for the patient’s facial registration. Afterward, the arch is connected to the articulator by removing the incisal pin, which may block the arch's fitting.

Why is the incisal pin removed during the facial arch installation?

The incisal pin is removed because its presence would prevent the facial arch from fitting properly onto the articulator.

What is the recommended method to ensure stability while assembling the facial arch?

To ensure stability, it is suggested to hold one side of the facial arch against the abdomen and use one hand to secure the opposite side, then tighten the screws to prevent displacement.

What adjustment should be made to the articulator when mounting the upper model?

When mounting the upper model, the Bennett angle should be set to zero, ensuring that the upper and lower parts of the articulator stay locked together.

How do you prevent the upper branch of the articulator from touching the incisal table?

To prevent the upper branch from touching the incisal table, you can use a support device, such as a box, or an accessory designed for the articulator that elevates the fork's angle.

What is the purpose of using a special plaster when mounting the model?

The special plaster is used to form a pillar of union between the model base and the mounting plate, allowing for stability without causing the model to shift during the assembly process.

How is the lower model mounted on the articulator?

The lower model is mounted after creating a silicone interocclusal record, using reference markings to ensure proper alignment. The model is fixed using three clips (two posterior and one anterior).

Why should the Bennett angle be set to 15° after the final assembly of the models?

The Bennett angle should be set to 15° after the final assembly to ensure correct articulation and alignment of the models during use.