Two-stage helical titanium implant placement

Treating diseases: dental disease Indication (1) Adults with good general condition, healthy body and mind, bone and tooth development have been finalized. (2) At least 6 months after jaw and alveolar bone surgery and trauma, after at least 3 months after tooth extraction, the bone defect has been restored, and the shape and quality of the implanted bed bone are good. (3) There is no obvious inflammation or lesion in oral soft tissue. (4) The patient himself has a strong request, and the economic conditions permit. Surgical procedure Implantation surgery was performed in two phases, with a full-mouth, two-segment spiral titanium implant as an example. First stage surgery: Implant fixation (1) Incision flap: a circular arc incision about 0.5 cm on the labial side of the alveolar crest, cut the mucosa, sharply separate to 2 cm from the top of the alveolar bone, then cut the periosteum, and turn up the periosteal flap to reveal the bone surface. The suture is sutured as a suture to prevent mucosal damage. (2) Preparing the implant nest: According to the design, a positioning and positioning jaw, prepare the planter and plant the surgical instruments. According to the reserved hole of the jaw plate, the positioning hole is drilled by using a fast mobile phone (2000 rpm). All of the above bone drilling processes need to be continuously flushed and cooled in the borehole with isotonic saline. Pulling the bone should be carried out in order to prevent the drill bit from being locked and locally generating high heat. In order to make several implants parallel to each other, the bone drilling process should always use the orientation rod as a direction indication. Figure 7 (3) Screw the implant retaining nail: Install the pre-selected implant retaining nail on the planter slow speed mobile phone through the special instrument, and align the implant nest to the central position, that is, the long axis of the implant and the long axis of the implant Consistent. Slowly screw in at 15 rpm to 25 rpm until the upper end of the implant retaining nail is 2 mm below the bone edge. (4) Install the cover screw: Grasp the cover screw with a nut wrench and screw it into the screw hole on the upper end of the implant retaining nail to make it tight. (5) suture wound: rinse with saline, thoroughly clean foreign bodies such as bone chips, reduce the periosteal flap, close the wound tightly with sputum and intermittent suture, and use a gauze roll for 1 hour after surgery. Second stage surgery: implant abutment connection After the first operation, the maxillary menstruation was performed for 6 months, and the mandible was completed for 4 months. After the osseointegration was performed between the implant and the jaw, the second stage operation was performed to install the abutment. (1) Incision and dissection: under the local anesthesia, the sacral mucosa or the transverse incision covers the surface of the screw and the periosteum and periosteum, and the covering screws are exposed. (2) Mounting abutment: Unscrew the cover screw to remove the bone tissue and soft group on the upper surface of the implant retaining nail. Measure the thickness of the gingival surface of the implant, and select the corresponding height of the implant abutment according to the thickness, so as to exceed the distance from the gingival margin by 1 mm to 2 mm, and the length of the abutment should be adjusted according to the distance between the patient's jaw and the preoperative design. To meet the requirements of denture repair. After the abutment is in place, tighten the center screw and hit the abutment with a metal rod-like instrument. If a crisp metal strike is made, the joint is in good position. (3) Install the healing nut: Screw in the healing nut to protect the center screw of the abutment without over-tightening to prevent the center screw from being locked when the healing nut is removed. (4) suture wounds: the gingival wounds on both sides of the abutment are surrounded by sutures.