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Each tooth can be described as having a mesial surface and, for posterior teeth, a mesiobuccal (MB) and a mesiolingual (ML) corner or cusp. [1] An occlusal view of a complete maxillary denture. The green line, indicating the dental midline, is the defining line when it comes to mesial-distal direction. The blue arrow, which indicates a mesial ...
Download as PDF; Printable version; In other projects ... maximum intercuspation refers to the occlusal position of the mandible in which the cusps of the teeth of ...
Molar relationship classification, observed when locating the mesial buccal cusp of the maxillary first molar and buccal groove of the mandibular first molar. (Institute of Dentistry, Aberdeen University) When discussing the occlusion of the posterior teeth, the classification refers to the first molars and may be divided into three categories:
Inlays and Onlays are contraindicated in patients with parafunctional habits and heavy occlusal forces. [citation needed] A Parafunctional habit refers to abnormal functioning of oral structures and associated muscles, for example patients who clench or grind their teeth. Occlusal forces are greater on molars when compared to premolars.
To remove occlusal interferences, Schuyler, introduced the BU-LL and MU-DL rule. This included reduction of the buccal cusp in the upper teeth and the lingual cusp of lower teeth in the frontal plane. Additionally, on the sagittal plane reductions are made on the mesial cusp for upper teeth and distal cusp of the lower teeth.
Each tooth is examined from two different aspects: occlusal aspect and then the buccal and labial surfaces with the exclusion of third molars. Tooth that is not in perfect occlusion from both occlusal aspect (in perfect alignment with contact line) and buccal aspect (in perfect alignment with plane of occlusion and in correct interdigitation ...
The mesial part is that which is towards the incisors. The suffix " -flexus / -flexid " (upper molar / lower molar) is used for the open valleys in the occlusal surfaces of the hypsodont teeth. When this valleys are enclosed, they are called fossetes/fossetids (upper molar / lower molar).
The mesial view shows a slight tipping of the crown to the lingual. Both roots have flutings but they are more prominent on the mesial root. The mesial root is broader buccolingually and its apex is more blunted. The height of contour on the buccal is in the gingival third and the occlusal two thirds of the surface is flat.