“… 3 Specialists often focus on hard-tissue aesthetics: teeth position, size, shape, and colour but underestimate the critical role of gingival display in constructing an aesthetically pleasing smile. 16 Recently, several studies have been conducted on gingival contours to measure gingiva-related parameters, 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 and the results are highly applicable to clinical dental practice. In addition to healthy gingiva characteristics, clinical parameters of interdental gingiva height, gingival zenith (GZ) point position, gingival line direction, and gingival symmetry are also important.…”