Minimally Invasive Bone Extrusion Technology In The Area Of The Maxillary Sinus After The Clinical Application Of Dental Implants Repair

OBJECTIVE To evaluate the clinical effects of using minimally invasive bone extrusion technology to lift maxillary sinus through the path of alveolar ridge top for cases with bone height missing in maxillary sinus area, and in the same period, implanted dental implants(conduct denture repair in the second stage)METHODS In October2005-jan2012period,42cases of patients seeing a doctor in maxillofacial surgery of oral cavity hospital in Lanzhou university with after teeth missing and maxillary deficiency of the bone mass (male25cases, female17cases), with an average age of51years old (28~72), the whole body health, without the maxillary sinus diseases. Preoperative imaging examination, the alveolar remaining bone height (i. e. the distance from alveolar ridge top to the bottom of the maxillary sinus) of4.8～9.6mm (average6.6mm); after first period of Dental implanting surgery, to observe the morphology of the maxillary sinus through immediate oral panoramic shooting piece, and observe the place of dental implants and the relationship between the surrounding tissue and anatomical structure. make Postoperative patients take antibiotics orally, make use of gargle、prohibited to make use of nose to blow or force sneezing. after the completion of the repairing crown, return visit respectively After1,3,6months. And photographed oral panoramic piece to Measure mass change of bone growing around the edge of the implanted body, the changes of remaining bone height after minimally invasive bone extrusion of the maxillary sinus, And with acute or chronic inflammation of the maxillary sinus or not. Appointment periods of orthopanotomography shooting film are not found have low bone density shadow around dental implants。RESULTS Adopt the standard proposed by scholar Albrektsson and Buser to judge whether dental implants operation was a success.42patients were implanted59plant body totally.2pieces of dental implants from2patients occurred perforation on the maxillary sinus mucous membrane in the process of operation, perforation rate is about3.39%. One patients appeared phenomenon of a few oozing blood after three days. the symptoms disappeared7days later, finally bone healed well. In postoperative6th week, Another patient s dental implants fall off finally because of the serious infection around. The rest of the58dental implants are successfully loaded, follow-up observation period was average of12.5months (6.5～15.1months), In the end retained rate of all dental implants is about98.31%. The dental implants is stabile in patients with surgery success The Albrektsson Buser and scholar proposed standard judgement of dental implants operation was a success.42patients were implanted59total plant body. Have2patients2pieces of dental implants in operation occurred in the process of the maxillary sinus mucous membrane perforation, perforation rate is about3.39%. One in three days after patients with nasal appeared a few ooze blood phenomenon,7days the symptoms disappeared, finally good bone healing. Another patient in postoperative week6, because the dental implants serious infection around, and finally fall off failure. The rest of the58gold dental implants are successfully load, an average of12.5months follow-up observation period (6.5~15.1months), the end all implant surgery of dental implants retained rate is about98.31%. The success of surgery patients after planting dental implants stability, appointment periods of the oral panoramic shooting film are not found dental implants have low bone density around shadow, except the patient after3days nasal has ooze blood outside, did not find other patients have bad symptoms. The panorama of oral measurement:on the day of the panoramic view that, through the minimally invasive bone extrusion technology, the bottom of the maxillary sinus bone plane was up3.9average+/-1.3mm. Six months after surgery panoramic piece of shows, the plane of the maxillary sinus bone than average increase preoperative2.3mm (1.8~3.7mm) bone loss at an average of almost edge1.2mm (1.0~1.7mm). Growing success after DouJianKang maxillary cases, was not found to acute or chronic inflammation and other lesions.CONCLUSION Use the same period bone extrusion forming technology do minimally invasive dental implants art, can effective treatment of the maxillary sinus area when the teeth of the maxillary sinus to alveolar ridge high deficiency of the parietal cases, the operation is simple steps, and the promotion of the maxillary sinus surgery fig2. open-window compared, trauma is relatively small, can achieve a higher success rate of operation.