Periodontal health around natural teeth and dental implants requires sufficient width and thickness of keratinized tissue. There is a large debate about the need of keratinized gingiva around natural teeth and dental implants, which leads to a controversy. Periodontal health around natural teeth and dental implants requires sufficient width and thickness of keratinized tissue. Furthermore, deficit in attached gingiva is more prone to attachment loss. However, among several surgical techniques, the free gingival graft finds its place to obtain gingival augmentation at sites without or with a minimal amount of keratinized tissue. Also, the goal of this surgical procedure would be to augment the thickness of gingival tissue, the vestibulum depth, to have root coverage or to stop the progression of gingival recession. After the advent of several mucogingival surgical techniques, the aim of this review is to respond to the principal question “Is free gingival graft still relevant around teeth and implants?”. Through a set of clinical cases and literature review, we intend to demonstrate first the need and the contribution of gingival augmentation in periodontal health, then to outline the potency of FGG in different clinical situation. Keyword: Periodontal Health; Gingival Thickness;Keratinized tissue; Gingival Recession; Free Gingival graft;Peri-implant gingival tissue.