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The function and importance of incisal guidance in oral rehabilitation

2001; Elsevier BV; Volume: 86; Issue: 3 Linguagem: Inglês

10.1067/mpr.2001.118493

1097-6841

Clyde H. Schuyler,

Orthodontics and Dentofacial Orthopedics

Incisal guidance is the influence on mandibular movements provided by the contacting surfaces of the maxillary and mandibular anterior teeth. The steepness of the incisal guidance is influenced by the horizontal and vertical overlap of the anterior teeth. In normal occlusion, the lingual inclines (surfaces) of the six upper anterior teeth may be considered as the incisal guide factor. The muscles of mastication and the temporomandibular joints control the movements of the mandible while the teeth are out of functional contact. From the time the first tooth contact is made until all teeth are in full functional contact, the teeth play a progressively greater role in directing the movements of the mandible. In the study of occlusion, we are more interested in the limited movements made by the condyles occurring while the teeth are in functional contact than we are in condylar movements made during the complete cycle of mastication.