A dental matrix band and tightening system is shown to comprise a matrix band, casing, actuator, and tensioner. Rotation of the actuator displaces the tensioner within the casing and draws additional length of the matrix band into the casing, thereby reducing the circumference of the matrix band and tightening the matrix band onto the tooth. The matrix band circumference is reduced in multiples of the displacement of the tensioner. The actuator and tensioner align on an axis parallel to the plane of the matrix band for ease of access and use.
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