Open contacts allow for areas of food impaction from opposing cusps called _____ cusps,which can result in trauma to the interdental gingiva.

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Open contacts allow areas of food impaction from opposing cusps,called plunging cusps,resulting in trauma to the gingivosulcular area.Open contacts also do not allow mesiodistal stability between the teeth.Cusps that function during centric occlusion are called the supporting cusps and include the lingual cusps of the maxillary posterior teeth and the buccal cusps of the mandibular posterior teeth.The incisal edges of the mandibular anterior teeth are usually included as supporting cusps.Supernumerary cusps are extra cusps on the tooth.Talon cusps are extra cusps on anterior teeth.

Open Contacts Allow for Areas of Food Impaction from Opposing