Mandibular MovementBy

S. Wanachantararak

Types of Movement Rotational movement Horizontal axis of rotation

Frontal (vertical) axis of rotation Sagittal axis of rotation Translational movement

Rotational Movement Around the horizontal axis

Rotational Movement Around the frontal (vertical) axis

Rotational Movement Around the sagittal axis

Translational movement

Single Plane Border Movement Sagittal plane border and functional movement Horizontal plane border and functional movement Frontal (vertical) border and functional movement

Sagittal Plane Border Movement

Sagittal Plane Border Movement Posterior open border Anterior open border

Superior contact border Functional movements

Sagittal Plane Border Movement Posterior open border movement

Sagittal Plane Border Movement Anterior open border movement

Sagittal Plane Border Movement Superior contact border movement

Sagittal Plane Border Movement Superior contact border movement (cont.)

Sagittal Plane Border Movement Superior contact border movement (cont.)

Sagittal Plane Border Movement Superior contact border movement (cont.)

Sagittal Plane Border Movement Functional movements

Horizontal Plane Border Movement Left lateral border Continued left lateral border with protrusion

Right lateral border Continued right lateral border

with protrusion Functional movements

Horizontal Plane Border Movement Left lateral border

Horizontal Plane Border Movement Continued left lateral border with protrusion

Horizontal Plane Border Movement Right lateral border

Horizontal Plane Border Movement Continued right lateral border with protrusion

Horizontal Plane Border Movement Functional movements

Frontal (Vertical) Border and Functional Movement Left lateral superior border Left lateral opening border

Right lateral superior border Right lateral opening border

Functional movements

Frontal (Vertical) Border and Functional Movement

Frontal (Vertical) Border and Functional Movement Left lateral superior border

Frontal (Vertical) Border and Functional Movement Left lateral opening border

Frontal (Vertical) Border and Functional Movement Right lateral superior border

Frontal (Vertical) Border and Functional Movement Right lateral opening border

Frontal (Vertical) Border and Functional Movement Functional movements

References Ash and Ramfjord. Occlusion 4th edition. W.B. Saunders Company, 1995 Mohl, Zarb, Carlsson and Rugh. A textbook of Occlusion. Quintessence Publishing Co., 1998 Sicher and DuBrul. Oral Anatomy 6th edition. The C.V. Mosby company, 1975

Kraus, Jordan and Abrams. Dental anatomy and Occlusion. The Williams and Wilkins company, 1969

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