chin projection

chin projection

[′chin prə′jek·shən]
(anthropology)
Measurement of the distance from the gonion to the most forward point on the vertical midline of the menton.
References in periodicals archive ?
For planning, six facial features helped to plan for alteration of OP in orthognathic surgery: (I) facial type; (II) upper incisor display at rest regards to upper lip; (III) dental and gingival display on smile; (IV) fullness and soft tissue support in the lips and paranasal region; (V) chin projection regarding to lips; and (VI) lower lip projection.
The chin projection regarding lower incisor inclination helped to regulate the amount of OP alteration; because we believe higher discrepancy between these structures, greater alteration of OP would be necessary.
Facial analysis showed a well-positioned maxilla despite a hypodivergent face pattern, with a reduction of tooth exposure upon smiling, and favorable chin projection associated with accentuated and deep labiomental fold due to retrusion of the inferior alveolar segment (Figures 1 and 2).
This loss of bony volume may contribute sagging facial skin, decreased chin projection, and loss of jaw-line definition.