Background: Dental implant placement using flapless surgery is a minimally invasive technique that improves blood supply compared with flapped surgery. However, the flapless technique does not provide access to allow bo�e re�e�eratio�. Objective�: T�e ai� o� t�i� ���te�atic review wa� to evaluate t�e cli�ical para�eter� �ollowi�� i�pla�t �ur�er� in healed sites, using two procedures: flapped vs. flapless surgery. Material a�d Met�od�: A detailed electro�ic �earc� wa� carried out i� t�e PubMed/Medli�e� E�ba�e a�d Cochrane Library databases. The focused question was, "How do flapped and flapless surgical techniques affect the cli�ical para�eter� o� de�tal i�pla�t� placed i� �ealed �ite�?". All t�e �tudie� i�cluded wit� a pro�pective co�trolled de�i�� were co��idered �eparatel�� depe�di�� o� w�et�er t�e� �ad bee� co�ducted o� a�i�al� or �u�a��. T�e �ollowi�� data were recorded i� all t�e i�cluded �tudie�: �u�ber o� i�pla�t�� �ailure�� locatio� (�axilla� �a�dible), type of rehabilitation (partial or single), follow-up and flap design. The variables selected for comparison in the animal studies were the following: 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, prob-i�� pocket dept�� papilla i�dex a�d kerati�ized �i��iva. �e�ult�: Te� �tudie� were i�cluded� �ix were experi�e�tal �tudie� a�d �our were cli�ical �tudie�. Studie� i� a�imals showed better results using the flapless technique in the parameters analyzed. There is no consensus in the clinical parameters analyzed in human studies, but there is a trend to better results using flapless approach.