| Objective: Clinical work often need reconstructive maxillary teeth after the bone defect,but different bone graft material or different surgical operation to the reduction of bone defect ability is different,in order to verify different bone graft materials and surgical operation in maxillary sinus promoted the cultivation of clinical application effect of the same period,this study used a retrospective study to evaluate the bone graft material and different surgical operation for different clinical cases,and thus makes the operation and the clinical curative effect of what kind of material is better,in order to adopt the best treatment for patients with service.Methods: Thirty-six patients(23 males and 13 females,mean age,48.12 ± 9.42)with maxillary sinus elevation were selected from Dalian Medical University Affiliated Stomatological Hospital from 2014 to 2016.Mean observation was(18.6 ± 6.5)months.In 36 cases,,the vertical bone height of the sinus floor was 3-8mm,28 cases weretranscrestal sinus floor elevation and 8 cases were lateral window sinus lift.There were 45 implants,which were divided into 4 groups according to the materials of implanted sinus cavity: A)No implant group,13 patients,18 implants(B)PRF group,6 patients,8 implants;C)bone meal group,7 patients,8 implants;D)PRF mixed bone meal group,10 patients,11 implants.In this study,we calculated the data of the panorama slice with 20-degree vernier caliper and RSVI graphic processing software,and then combined the average of the two data.Real and reduce the error,according to the panorama of the label set the scale to find the real changes in bone mass,and then the measured data into the SPSS for comparative analysis,so that the data between the groups were statistically different.Follow the patient’s follow-up to ask the patient’s postoperative experience and let the patient score with the VAS table,and then score the data to evaluate the different surgical postoperative situation.Patients were followed up for complications and implant retention rates.Surgery process:transcrestal sinus floor elevation:conventional preoperative disinfection and preparation,local anesthesia incision,flap.Drill hole positioning,twist drill into the hole to prepare the nest,the sinus at the end of 1mm safe distance,select the larger diameter of the rupture of the rupture to break through the sinus cortical bone,gently raise the sinus mucosa to the required height.After confirming the integrity of the sinus floor,implant the material and the implant,remove the implanted body,install the healing base,draw the periosteal flap without tension intermittent suture,complete the operation.lateral window sinus lift:conventional preoperative disinfection and preparation,local incision,flap,in the anterior maxillary sinus with a small ball for the oval line,split the line to the visible mucosal color can be,Bone chisel wedge into the dividing line in the tapping,separated from the window bone cover,along the bone wall of the sinus mucosal elevation,Zhu Huanzhe inhale to observe the sinus mucosal dynamic or drum test to check the integrity of the sinus mucosa The After confirming the integrity of the sinus mucosa,implant the material and the implant,remove the implanted body,install the cover screw,and suture the wound.Results: The amount of new bone regeneration in the maxillary sinus was: A)no implantation group,0.13 ± 0.39 mm;B)PRF group,1.43 ± 0.96mm;C)bone meal group,1.79 ± 0.84mm;D)PRF mixed bone meal group,1.76 ± 1.02 mm.A group and the other three groups were statistically significant.Maxillary sinus elevation two implants failed due to the final loose after removal,and the remaining 43 implant X-ray showed good bone union,can do the normal planting load.Transcrestal sinus floor elevation of patients have slight pain afte operation.Lateral windowsinus lift of patients have external respone after operation.The successful rates of implantation were 94.3% and 100%,respectively.The success rate of the two methods was statistically significant(P <0.05).Conclusion:(1)Various bone graft materials can effectively increase the bone mass in maxillary sinus elevation.(2)The success rate of maxillary sinus elevations within 3 years was statistically different.The success rate of maxillary sinus elevation was high,the rate of mucosal perforation was low,but the postoperative reaction was heavy.(3)maxillary sinus lifting within the lifting of the trauma is small,time-consuming short,and patients with higher subjective satisfaction. |
