Relates to an impression cap that are used in the impression taking of oral environment in the dental implant treatment. And more particularly it is connecting with Healing Abutment to minimize the detachable use of function. It is cruciform-ribbed interlocking connection parts between Healing Abutment and the inside of upper body which is having cylindrical body. Impression cap has cruciform-ribbed connection including polygonal plate with protruding shape. The impression cap is connecting to Healing Abutment for impression taking process. Impression cap is working in this process to minimize use of detachable function which is causing painful stimulation. When minimize to unlock healing abutment, it has huge advantage of healing for protecting gum tissue and bone structure. Moreover, Impression cap is not only using as impression process but also function as Healing Abutment. It means that dual function has overturns a conventional impression process.