![]() ![]() ![]() Concurrently, regulatory agencies have pressed for more robust validation measures of new aesthetic scales, as well as establishing that these scales are fit-for-purpose in various clinical settings. Increased use of aesthetic facial fillers has driven the need for modern photonumeric scales to ensure objective and reproducible assessment of treatment response by demonstrating aesthetic improvement from baseline. This enhancement can be achieved through filling volume and contour deficits, resulting in the enhancement of ptotic superficial compartments, repositioning of superficial fat, and/or tightening the skin around the jawline. ![]() Fillers also provide an opportunity to enhance the size of the jaw by adding volume in the front at the chin and/or on the sides of the jaw. 4 Dermal fillers have been identified as a treatment option to straighten and re-establish volume and contour of the jawline. 3Īlthough a surgical facelift is the standard treatment used to address decreased volume levels or a noticeable and undesirable contour of the jawline, as the aesthetic market evolves, patients are increasingly seeking improved results with less invasive procedures and reduced downtime. Further, as soft-tissue fullness shifts from the upper face to the lower face, the aging face loses its youthful heart-shaped appearance and takes on a heavy, rectangular shape. 2 Volume loss in attachment points of the skin to the underlying superficial muscular aponeurotic system and/or to the bone results in specific patterns of deflation, pseudoptosis, and shadowing. 1 Multiple factors lead to this decreased level of jawline volume and/or its noticeable, undesirable contour, including loss of bone volume, atrophy, and the descent of fat. The aging face is often characterized by skin ptosis in the lower region and the loss of a defined mandibular margin. Development and validation of photonumeric scale for evaluation of jawline contour. The scale maintains its validity and reliability with reproducible results across a diverse group of males and females of various ages and Fitzpatrick skin types. Substantial interrater agreement between each rater pair was also demonstrated for both rating sessions.Ĭonclusion: The Merz Jawline Assessment Scale is a validated and reliable photonumeric scale for rating loss of jawline volume and contour. ![]() Intrarater agreement between the 2 rating sessions was nearly perfect (median weighted kappa = 0.908). Results: The weighted kappa for intra- and interrater agreement were ≥ 0.7 in all cases. Seven board-certified dermatologists and plastic surgeons evaluated 90 subjects live in 2 sessions, 3 weeks apart to establish intra- and interrater reliability. Methods: A 5-point photonumeric scale was developed to objectively assess jawline volume loss and contour disruption using male and female subjects of various ages and skin types. Objective: To present scale-development methods for the Merz Jawline Assessment Scale and establish its reliability. To objectively evaluate treatment-related improvements in clinical practice and research, a validated photonumeric scale is needed. Several options are available to redefine the jawline. Abstract Background: A naturally aged face is often characterized by a noticeable lack of jawline contour and decreased volume in the lower region. ![]()
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