residual ridge

residual ridge,

the part of the alveolar ridge that remains after the alveolar process has disappeared after extraction of the teeth.

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ridge,

n 1. the remainder of the alveolar process after the teeth are removed.
2. the linear elevations on the masticatory surface of both anterior and posterior teeth.

ridge, alveolar,

n the bony ridge of the maxillae or mandible that contains the alveoli (sockets of the teeth). See also process, alveolar.

ridge, alveolar, remodeling,

n an eroding of the residual ridge that occurs as the result of wearing dentures. It may cause changes to the bone structure of the face so that dentures must be repaired or replaced to obtain a secure, comfortable fit.

ridge augmentation,

n the process of increasing the size of the alveolar ridge.

ridge, center of,

n the buccolingual midline of the residual ridge.

ridge, central labial,

n a groove appearing on the buccal midline of a canine tooth that is caused by a larger than usual middle labial developmental lobe.

ridge, cervical,

n the height of the curve in the cervical third of a tooth's buccal surface.

ridge, crest of,

n the highest continuous surface of the ridge, but not necessarily the center of the ridge; the top of a residual or alveolar ridge.

ridge expansion,

n the surgical process of using chisels or osteotomes to widen the residual ridge laterally in order to allow an implant or bone graft to be inserted.

ridge extension,

n See extension, ridge.

ridge, internal oblique,

n the mylohyoid line located along each medial surface of the body of the mandible that extends posteriorly and superiorly, becoming more prominent as it ascends each body. It is the point of attachment of the mylohyoid muscle that forms the floor of the mouth.

ridge, key,

n (zygomaxillare), the lowest point of the zygomaticomaxillary ridge.

ridge, labial,

n a linear elevation or ridge located on the surfaces of the incisors that face the lips.

ridge lap,

n the part of an artificial tooth that is adjacent to the residual ridge; the part of the artificial tooth that laps the ridge.

ridge mapping,

n the act of using a graduated probe or caliper to pierce the anesthetized soft tissue along the residual ridge in order to determine the measurements needed to reproduce the shape of the ridge using a diagnostic cast.

ridge, marginal,

n a ridge or elevation of enamel that forms the boundary of the occlusal surface of a tooth.

ridge, mental,

n a dense ridge extending from the symphysis to the premolar area on the anterolateral aspect of the body of the mandible.

ridge, mylohyoid,

n a dense line or ridge of bone on the medial surface of the body of the mandible that extends obliquely upward and posteriorly from the symphysis, covers the cervical portion of the third molar, and then goes upward and backward onto the vertical ramus. The mylohyoid muscle is inserted into this ridge of bone.

ridge, oblique,

n See ridge, internal oblique.

ridge, Passavant's,

n.pr See pad, Passavant's.

ridge relation,

n See relation, ridge.

ridge, residual,

n the portion of the alveolar ridge that remains after the alveoli have disappeared from the alveolar process after extraction of the teeth.

ridge support,

n See area, supporting.

ridge, transverse,

n an elevation that connects the buccal and lingual cusps and extends crosswise over the occlusal table of mandibular and maxillary posterior teeth.

ridge, triangular,

n an elevation on a posterior tooth that extends from the tip of the cusp to the center of the occlusal table.