Oclusion And The Definition Of Occlusion

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Occlusion: Occlusion can be defined very simply: “it means the contact between teeth”. the concept can be further refined by defining those contacts between the teeth when the mandible is closed and stationary as the static occlusion, and those contacts between teeth when the mandible is moving relative to the maxilla as the dynamic occlusion. [1]
• there are few terms in occlusion which needs to be explained to understand occlusion in detail.
• Static Occlusion: static occlusion is the contact of upper and lower dentition when mandible is not moving.

• Centric occlusion (CO): can be described as the occlusion the patient makes when they fit their teeth together in maximum intercuspation. Also, known as maximum Intercuspation Position (ICP). It is the occlusion that the patient nearly always makes when asked to close their teeth together, it is the ‘bite’ that is most easily recorded because it is the bite patient is accustomed to, i.e. Habitual bite [1]
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It is the position of the mandible to the maxilla, with the intra-articular disc in place, when the head of the condyle is against the most superior part of the distal facing incline of the glenoid fossa [1]

• Dynamic occlusion: Dynamic occlusion is the functional occlusion in which mandibular and maxillary teeth move relative to each other. other than the muscles of mastication there are two guidance systems which are the main determinates of functional

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