The application discloses a kind of
oral cavity thread
retaining pin and the method for fixing gum flap in free gingival
transplantation, the
retaining pin includes head;The head is connected with light pole, and the light pole is provided with threaded portion at one end, and the threaded portion is connected with
tail portion;
Drug delivery mechanism is arranged in the light pole, and a plurality of sustained-release micropores are arranged on the threaded portion and
tail portion, and the sustained-release micropore is connected with
drug delivery mechanism;The
drug delivery mechanism is connected with pressing
assembly, and the pressing
assembly is located at the head.The method comprises the following steps:
anesthesia is carried out to recipient area and donor area, recipient area is prepared,
grafting tissue is obtained, and the
grafting tissue is transplanted to recipient area
wound surface and donor area
wound surface is handled.The application can keep the
close contact between gum flap and recipient
bed, significantly reduce the risk of tissue flap rejection, and improve the
survival rate of
transplantation;Meanwhile, through the setting of pressing
assembly and
drug delivery mechanism, it is convenient to give
medicine regularly and for a long time.