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Class I: The molar relationship of the occlusion is normal or as described for the maxillary first molar, with malocclusion confined to anterior teeth [4] Class II : The retrusion of the lower jaw with distal occlusion of the lower teeth (or in other words, the maxillary first molar occludes anterior to the buccal groove of the mandibular first ...
Class I with severe crowding and labially erupted canines Class II molar relationship. Edward Angle, who is considered the father of modern orthodontics, was the first to classify malocclusion. He based his classifications on the relative position of the maxillary first molar. [33]
Class 2 elastics are used from the lower first molar to the upper canine tooth. [1] They can be used for many different reasons, such as Class 2 malocclusions, to reinforce anchorage in a case where an extraction has been done, to allow the maxillary incisors to move backwards, and to correct midline deviation and allow buccal movement of ...
Retention demands are significantly less following serial extraction. However it is better to follow a regular retention regimen for the first six months against possible relapse of rotations and to allow settling of the occlusion. A maxillary Hawley type retainer and a bonded mandibular canine to canine retainer make an efficient retention ...
Static occlusion refers to contact between teeth when the jaw is closed and stationary, while dynamic occlusion refers to occlusal contacts made when the jaw is moving. [ 1 ] The masticatory system also involves the periodontium , the TMJ (and other skeletal components) and the neuromusculature, therefore the tooth contacts should not be looked ...
The concept of ideal occlusion, as postulated by Angle and incorporated into a classification system, enabled a shift towards treating malocclusion, which is any deviation from normal occlusion. [8] Having a full set of teeth on both arches was highly sought after in orthodontic treatment due to the need for exact relationships between them.
Arguments for canine guided occlusion in complete dentures have been gaining momentum because of its ease of fabrication and better patient preference. [19] There has been a presumption that canine guided occlusion in complete dentures promotes denture instability by introducing interferences during function.
In dentistry, a mutually protected occlusion is an occlusal scheme in which the anterior teeth protect the posterior teeth, and vice versa.. The anterior teeth protect the posterior teeth by providing for a plane of guidance during excursions, thus allowing the cusps of the posterior teeth to disclude rather than strike one another during lateral or protrusive movements from centric relation.