2016 Glossary - 42

mandibular adj: concerning the lower jaw (mandible).
mandibular anteroposterior ridge slope n: usually
produced in an edentulous patient by resorption of
alveolar bone of the lower jaw (mandible). This slope
of the crest of the ridge from the third molar region
to the greatest anterior aspect relative to the inferior
border of the mandible as observed in profile is of
particular significance for the design and fabrication
of a lower prosthesis as it can affect movement of the
denture in an anterior direction during normal occlusion and function.
mandibular dislocation n: a unilateral or bilateral displacement of the mandibular condyle(s) out of the
glenoid fossa(e) that precludes normal occlusion of
the teeth.
mandibular dysplasia n: a condition in which the 2
halves of the mandible lack symmetry in size or form.
mandibular equilibration n: adjustments to the
occlusal surfaces of the natural teeth or prosthetic teeth in the lower arch (mandible) that place the
mandible in a condition whereby forces placed on it
by the opposing dentition are neutralized and a state
of equilibrium is created.
mandibular glide n: an obsolete term referring to the
lateral, forward, and intermediate movements of the
mandible, which occur when teeth or surfaces that
otherwise occlude are in contact.
mandibular hinge position n: an obsolete term referring to the mandibular position that allows for hinge
axis-type movements upon opening and closing relative to the maxilla.
mandibular micrognathia n: a mandible that is atypically small and characteristically associated with a
diminished chin form.
mandibular movement n: movement of the mandible
as it changes position relative to the maxilla or other
structures.
mandibular nerve n: a part of the trigeminal nerve referred to as the third division. The trigeminal nerve
exits the skull via the foramen ovale. The mandibular nerve feeds motor innervation to the muscles of
mastication, tensor veli palatini muscle, tensor tympani muscle, anterior belly of the digastric muscle,
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and mylohyoid muscle. Sensory innervation is provided to the mandibular gingiva and teeth, epithelium of the anterior two-thirds of the tongue, skin of
the lower face, and floor of the mouth.
mandibular relationship record n: a record or registration of the correlation of the mandible to maxilla.
mandibular repositioning n: a device or method
causing the mandible to close in an altered position.
mandibular retraction n: movement of the mandible
posteriorly by surgical or orthopedic/orthodontic
means.
mandibular staple n: a dental implant that is placed
transosteally from the inferior border of the mandible with threaded rods that pass through the anterior body of the mandible and emerge through the
oral mucosa between the mental foramen.
mandibular translation n: anterior movement of the
mandible on opening.
mandibular trismus n: tonic contraction of the muscles of mastication that leads to limited opening of
the mandibular jaw.
marginal gingiva n: the terminal edge (most coronal
aspect) of the gingiva surrounding the teeth, forming the wall of the gingival sulcus.
marginal ridge n: the rounded enamel border at the
junction of the occlusal and mesial/distal tooth surfaces.
master impression n: the negative likeness reproduction of the dental arch characterized by high dimensional accuracy and surface detail made for the
construction of a master cast on which the prosthesis
will be fabricated.
maxillary micrognathia n: a condition in which the
volume of maxillae bone is less than normal and
usually visible as smaller bone structures found in
the middle third of the face. This smaller middle third
of the face occludes with a normal-sized mandible
(lower third of the face).
maxillary protraction n: a condition in which the
upper jaw bone (maxillae) volume of bone and its
supporting tissue structures are less than normal for
the size of the mandibular bone and its supporting
tissue structures.

2016 Glossary

Table of Contents for the Digital Edition of 2016 Glossary