What is Excursive movement of mandible?
56. EXCURSIVE MOVEMENT Movement occurring when mandible moves away from maximum intercuspation OCCLUSAL INTERFERENCES Undesirable contacts occurring during lateral movements. 57. Working side Non working (balancing) side Side that side of the mandible that moves toward the median line in a lateral excursion.
What are some movements of the mandible?
 There are primarily 6 types of mandibular movement, including opening, closing, rightward jaw translation, leftward jaw translation, protrusion, and retrusion. Variability in jaw movement allows for mastication of different textures and consistencies.
What is the forward movement of the mandible?
TMJ Movements. Normal movements of the jaw during function, such as chewing, are known as excursions. There are two lateral excursions ( left and right ) and the forward excursion, known as protrusion, the reversal of which is retrusion.
What is the backward movement of the mandible?
These movements include: Protrusion (protraction), which moves the mandible forwards. Retraction, which pulls the mandible backwards.
What is the most common cause of restricted mandibular movement?
Muscle (extracapsular) and temporomandibular joint (intracapsular) disorders are often causes of limited mandibular movements.
What is Laterotrusive movement?
Protrusive movements were straight forward, dividing the angle evenly between left and right laterotrusion. Laterotrusive movements were of equal length and similar to the length of protrusion.
Which type of movement is found in the jaw?
Movements. A variety of movements occur at the TMJ. These movements are mandibular depression, elevation, lateral deviation (which occurs to both the right and left sides), retrusion and protrusion.
What is Bennett movement?
The Bennett movement is defined as “The bodily lateral movement or lateral shift of the mandible resulting from the movements of the condyles along the lateral inclines of the mandibular fossae in lateral jaw movements. “’ McCollum’ considered the Ben- nett movement the most important determinant of occlusion.
Which of the following bones is suspended between the mandible and the larynx?
The hyoid bone (Gr. hyoeides, U-shaped) is a small, U-shaped bone that is located between the mandible and larynx and anterior to the third cervical vertebra.
What is a condyle in the jaw?
Condyle. The most superior part of the mandible, the condyle presents an articular surface for articulation with the articular disk of the temporomandibular joint; it is convex from before backward and from side to side, and extends farther on the posterior than on the anterior surface.