Dentogingival display through lip border movements: Report of the Committee on Research in Fixed Prosthodontics of the American Academy of Fixed Prosthodontics

Measurement of vertical anterior teeth display and lip position at smiling in Kurdish population. Age and gender-based evaluation

“…Therefore, the cervical thirds of the upper anterior teeth are covered by the upper lip, and the incisal parts are covered by the lower lip. Accordingly, no gingival display was recorded in all tested groups, conflicting results of Walter et al study [ 28 ]. Besides, the present study indicated no age or gender-based significant differences in the apparent vertical anterior teeth height during posed smiling.…”

“…Many other researchers improved the method of esthetic assessment and used videography and software to record a smile rather than a static picture [ 3 , 7 , 13 , [24] , [25] , [26] , [27] ]. A spontaneous smile is difficult to obtain with static photographs [ 28 ], and it is impossible to capture the highest smile line of a patient in a single photographic image. Recently, due to the improvements in video and photographic quality in modern smartphones and the simplicity of their application, protocols have been developed to use them by clinicians to conduct their studies instead of expensive and bulky photographic equipment [ 13 , 29 ].…”