Tehran University of Medical Sciences Frontiers in Dentistry 2676-296X 18 0 2021 04 28 3419 3419 Pardis Haddadi Department of Periodontics, Faculty of Dentistry, Lorestan University of Medical Sciences, Khorramabad, Iran Hadi Zare Department of Periodontics, Faculty of Dentistry, Lorestan University of Medical Sciences, Khorramabad, Iran Ali Azadikhah Department of Periodontology, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran 2020 01 10 2021 03 16 For many years oral esthetic problems treated by dentists were limited to those involving the teeth without giving consideration to the gingiva. However, today it is well established that these structures should be in balance to appear esthetically pleasing. More than 3mm gingival show during smiling is considered as ‘excessive gingival display’ also known as “gummy smile”, which is not attractive. The current case series, presents three patients with gummy smile managed by lip repositioning surgery, each with 1 year follow up. Our objective was to introduce lip repositioning as a successful treatment modality to decrease gingival show using a simple and conservative surgical approach. https://fid.tums.ac.ir/index.php/fid/article/view/3419 https://fid.tums.ac.ir/index.php/fid/article/download/3419/1851