University of Michigan Dentistry Podcast Series: Clinical Occlusal Examination

Overview

• Focus on promoting oral healthcare worldwide through thorough clinical occlusal examination.
• Examination includes:
  • Evaluation of tooth contacts in centric occlusion.
  • Analysis of left/right working, balancing, protrusion, and lateral movements.

Key Concepts

Centric Occlusion

• Maximum contact between all opposing teeth.
• Contacts can be studied on articulated casts.
• Centric occlusion stops are located on supporting cusps:
  • Lingual cusps of maxillary posterior teeth.
  • Buccal cusps of mandibular posterior teeth.
  • Incisal edges of mandibular anterior teeth.
• Importance:
  • Provides stable jaw position.
  • Establishes vertical dimension for stability.

Diagnostic Waxing

• Maxillary right first molar, cuspid, and central incisor focused on.
• Use of articulating paper for marking contact areas.
• Observation of centric stops and supporting cusps.
• Variations in articulation can indicate mounting issues.

Wear Facets

• Indicate contact regions worn smooth through function.
• Useful in diagnosing occlusal issues like bruxism.
• Examination involves:
  • Visual inspection and light reflection.
  • Noting misalignment or occlusal trauma.

Functional and Parafunctional Movements

Working and Balancing Movements

• Working side: side where movement occurs smoothly.
• Balancing side: opposite side, often with interferences.
• Examination focuses on:
  • Smoothness of mandibular movements.
  • Impact of contacts in various excursions.

Protrusive Movements

• Straightforward and lateral protrusive excursions assessed.
• Examination of anterior tooth contacts during movement.
• Aim for even, smooth gliding movements.

Examination Techniques

• Use of mirrors, articulating paper, and shimstock to assess contacts.
• Importance of accurately mounted casts for diagnostics.

Key Takeaways

• Detailed analysis of occlusal contacts is crucial for diagnosing occlusal function.
• Ensuring smooth mandibular movements helps identify occlusal dysfunctions.
• Proper articulation and observation can prevent interferences and ensure stable jaw function.

Licensing

• Content licensed under Creative Commons for non-profit use.
• Attribute materials to the University of Michigan School of Dentistry.