Abstract: Disclosed is a marker for image information matching. A marker for image information matching in accordance with an embodiment of the present invention is installed in an oral cavity of a patient to provide a reference point for obtaining image information on an oral tissue of the patient.

Abstract: A stent for implant surgery is provided. The stent includes a support part surrounding a buccal side, lingual side and occlusal side of at least one tooth, and a treated part having a through hole through which a drill for drilling alveolar bone passes. The support part extends further from a height of a contour of at least one of the buccal side and the lingual side to surround part of an undercut of the tooth. Further, an elastic part which is elastically deformable is attached to the inner surface of each of the buccal side and the lingual side of the support part.

Abstract: The invention relates to a stent fixture for implant for precision-guided insertion by which it is possible to stably, precisely, and rapidly perform puncturing for implant placement. In this technique, the implant is inserted into the gums and the bone through a stent. The stent fixture includes a fixing screw composed of a thread portion, a guide portion extending from the thread portion, a head portion provided at an upper end of the guide portion with diameter bigger than an outer diameter of the guide portion, and a fixing base composed of a support portion having predetermined supporting force with respect to the gums at the position where the fixing screw is attached to the bone and a guide coupling portion having a guide coupling hole having a shape corresponding to that of the guide portion.