Abstract: Dental implant placement using flapless surgery is minimally invasive technique which improves blood supply compared with flapped surgery. Objectives: The aim of this systematic review was to evaluate the clinical parameters following implant surgery in healed sites, using 2 procedures: flapped vs flapless surgery. A detailed electronic search was carried out in the PubMed/Medline, Scholar Library databases. The focused question was, what is the efficacy of flapless surgery compared to the flapped approach?” .All the studies included with a prospective controlled design were considered separately, depending on whether they are being conducted on animals or humans. The following data were recorded in all studies: number of implants, failures, location (maxilla, mandible), type of rehabilitation (partial or single), follow up and flap design. The variables selected for comparison in animal studies were : flap design, gingival index, mucosal height, recession and probing pocket depth. In humans studies the variables were as follows: flap design, plaque index, gingival index, recession, probing pocket depth, papilla index and keratinized gingiva. Results: Ten studies were included, of which 2 are excluded because of irrelevance, out of which 6 where human studies and 2 were animal studies. Results obtained showed that human studies proved that the flapless implant approach proved to be efficient over flapped approach whereas the animal studies showed no significant differences between the two.