A variation in complete mandibular impression form related to an anomaly of the mylohyoid muscle.
1. Mylohyoid eminentiae form on the lingual flange of a denture impression when a gap exists in the mylohyoid muscle. The gap, when void of resistant structures, allows the overlying mucous membrane to sag into the aperture under pressure from impression material. 2. The eminentiae may be considered clinically unimportant, because they can be altered if necessary without affecting the serviceability of the denture.
D003826:Denture, Complete, Lower; D006801:Humans; D006928:Hyoid Bone; D008334:Mandible; D008410:Masticatory Muscles / Q000002:abnormalities* / Q000473:pathology