Both maxillary complete denture’s labial flange and anterior artificial teeth play important roles in re-establish major support for the upper lip of elderly patients. However, whether the labial flange can be removed and still perceived as aesthetic remain unclear. Objective: To determine the perception of young adults toward the effect of a labial flange and anterior teeth on lip support of an elderly with maxillary complete dentures. Methods: A total of 64 young adults were recruited to evaluate the lip support for facial aesthetics of 30 full-face photographs in 3 different states: with an original complete denture (CD), with a flangeless duplicated denture and without the complete denture. They were rated using a Visual Numerical Scale (VNS) of 10, with 1 being the least attractive and 10 being the most attractive and repeated twice in random order. Soft-tissue profile analysis was performed to determine which facial anatomical landmarks were most important for lip support and aesthetics. Results: The overall VNS rating with CD (6.33 ± 0.58) was significantly higher (p < 0.001) than images with flangeless (5.58 ± 1.01) or without CD (5.23 ± 1.30). The landmarks that showed
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