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A dental arch is a crescent arrangement of teeth on each jaw that constitute the dentition. The upper arch is slightly larger than the lower arch and determines the occlusal relationship of opposing teeth, which can be affected by malocclusion or prostheses.
Learn about the anatomy, development, and notation of the maxillary central incisor, a human tooth in the front upper jaw. Compare the deciduous and permanent versions of this tooth and see how they differ in size, shape, and color.
The mandible is the only movable bone of the skull, forming the lower part of the mouth and hosting the lower teeth. It has a complex structure, consisting of a body, two rami, and various surfaces, borders, and processes, and is involved in chewing, speech, and facial expression.
Learn about the formation, appearance, and classification of human teeth, as well as the naming and numbering systems used by dentists. Dental anatomy is a field of anatomy that studies the morphology and function of teeth and their supporting tissues.
Cephalometric analysis is the clinical application of cephalometry, which is the study of the dental and skeletal relationships of a human skull. It involves cephalometric radiographs, tracings, and landmarks to evaluate facial growth and plan orthodontic treatment.
The buccinator is a thin muscle that forms the cheek or the lateral wall of the mouth. It helps in chewing, whistling, smiling and suckling, and is innervated by the buccal branch of the facial nerve.