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Occlusion Principles & Articulators

Dental Anatomy & Occlusion • NEET MDS Study Guide • AI-Generated Notes

⭐ High-Yield Facts for Exam

  • Curve of Spee = AP curvature.
  • Curve of Wilson = mediolateral.
  • Bennett angle = non-working condyle path.
  • Semi-adjustable articulator = most used.
  • Facebow transfers hinge-axis relationship.

Occlusion Principles & Articulators

Occlusal Curves

  • Curve of Spee — the antero-posterior curvature of the occlusal plane.
  • Curve of Wilson — the mediolateral (side-to-side) curvature.

Mandibular Movements

Bennett movement = lateral bodily shift of the mandible; the Bennett angle is the angle of the non-working condyle's path. Working vs non-working (balancing) side contacts are key concepts.

Articulators

  • Semi-adjustable articulator — most commonly used; reproduces condylar guidance/ Bennett angle within limits.
  • Facebow transfers the maxilla-to-hinge-axis relationship to the articulator.

Exam Tips ⭐

Curve of Spee = AP; curve of Wilson = mediolateral; Bennett angle = non-working condyle path; semi-adjustable = most used.

📝 Practice MCQs — Occlusion Principles & Articulators

Q1. The antero-posterior occlusal curve is the:
A. Curve of Wilson
B. Curve of Spee
C. Bennett curve
D. Monson curve
Show Answer
✅ Answer: B
The curve of Spee is the AP occlusal curvature.
Q2. The Bennett angle relates to the:
A. Working condyle
B. Non-working (balancing) condyle path
C. Incisal guidance
D. Curve of Wilson
Show Answer
✅ Answer: B
Bennett angle is the path of the non-working condyle.
Q3. A facebow is used to:
A. Measure VDO
B. Transfer the maxilla-to-hinge axis relationship
C. Record centric relation
D. Polish dentures
Show Answer
✅ Answer: B
The facebow transfers the maxillary relationship to the articulator hinge axis.
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Related Topics

Occlusion ConceptsJaw Relations & FacebowTMJ Anatomy