contra bevel

contra bevel

Etymology: L, contra, against; OFr, baif, open mouth

1 also called reverse bevel. the angle between a dental cutting blade and the base of the periodontal pocket when the blade is held so that it separates the sulcular epithelium from the external epithelium of the gingiva.

2 an external bevel of a tooth preparation extending onto a buccal or lingual cusp from an intracoronal restoration.

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bevel,

n the inclination that one surface makes with another when not at right angles; in cavity preparation, a cut that produces an angle of more than 90° with a cavity wall.

bevel, cavosurface,

n the incline or slant of the cavosurface angle of a prepared cavity wall in relation to the plane of the enamel wall.

bevel, contra,

n blade placement toward the base of the periodontal pocket to separate the sulcular from the external epithelium. Also known as a
reverse, or
internal, bevel.

bevel, incisal,

n the angle of an incisor; it can be less than or greater than 90°.

bevel, instrument,

n the sloping keen edge of a cutting instrument.

bevel, reverse,

n See bevel, contra.