Clinical Study Of Two Kinds Of Bone Materials After Split Implantation Of Maxilla

Objective:In this study,a retrospective analysis was conducted by collecting cases and comparing the postoperative clinical effects of artificial bone meal and xenograft artificial bone material in the maxillary anterior dental region when bone splitting implantation technology was adopted by ultrasonic bone knife.The repair effects after implantation with different bone materials were analyzed.The purpose of this study is to provide reference for the osteogenic effect of alveolar bone after the use of two different types of bone grafting materials in the future clinical implant work in the oral maxillary anterior dental region.Methods:Patients aged 20-60 years who were admitted to the Department of Oral Implant Surgery,from January 2021 to May 2022 with dental dentition defects in the anterior maxillary region due to serious dental diseases,periapical diseases,dental trauma and other reasons and requested for dental implant prosthesis repair were selected.All patients signed informed consent forms,which were approved by the ethics committee of the hospital.Retrospective investigation was conducted on cases meeting the inclusion criteria,and clinical examination data were recorded.Patients were divided into 2 groups according to the type of implanted bone material they needed to use,and the experimental group chose to use synthetic bone material(OSTEON^TMⅡBone material)bone graft patients,a total of 40 cases.In the control group,40 patients were selected to use xenogeneic artificial bone material（Bio-Oss bone material）bone graft.A retrospective study was conducted to compare with the postoperative clinical efficacy of OSTEON^TMⅡbone material and Bio-Oss bone material were recorded.Alveolar bone density was recorded before implantation,7 days after suture removal,3 months after implantation,at the second stage of implantation（6 months after implantation）and 3 months after crown restoration.The success rate of implant bone union was recorded;The labial keratinized gingival widths of implants were recorded at 7 days after suture removal,at the second stage of implantation（6 months after implantation）and 3 months after crown restoration.The thickness of the labial bony plate of the implant and the red aesthetic evaluation（PES）at 3 months and 7 days after the suture removal,3 months after the implant,at the second surgery（6 months after the implant）and 3 months after the crown repair were recorded.The obtained clinical data were grouped and statistical analysis was carried out using SPSS21.0software.P<0.05 was considered statistically significant.Results:1.There were 23 males and 17 females in the experimental group;The mean age was（36.34±5.26）years;Among the causes of dental loss,19 cases were trauma,3 cases were congenital,14 cases were severe dental diseases,and 4 cases were others.In the control group,there were 25 males and 15 females;The mean age was（35.76±5.43）years;Among the causes of dental loss,20 cases were trauma,3 cases were congenital,11 cases were severe dental diseases,and 6 cases were others.There was no significant difference in the general data between the two groups（P>0.05）,and the balance was comparable.2.There was no statistical significance in peri-implant bone mineral density between the two groups before implantation and 7 days after implantation suture removal during treatment（P>0.05）.The peri-implant bone mineral density of the experimental group was higher at 3 months after implantation（1.79±0.23）g/cm³,at the second stage of implantation（1.88±0.27）g/cm³and 3 months after crown restoration（1.89±0.28）g/cm³than at 7 days after implantation suture removal（1.35±0.21）g/cm³,which was statistically significant（P<0.05）.Similarly,the peri-implant bone mineral density in the control group was higher at 3 months after implantation（1.61±0.18）g/cm³,2months after implantation（1.77±0.22）g/cm³ and 3 months after crown repair（1.78±0.24）g/cm³than at 7 days after implantation suture removal（1.32±0.24）g/cm³,which was statistically significant（P<0.05）.After implantation,the peri-implant bone mineral density of the experimental group at 3 months after implantation was significantly higher than that of the control group,the comparison was statistically significant（P<0.05）,while the peri-implant bone mineral density of the experimental group at the second stage of implantation and 3months after crown repair was completed was not statistically significant（P>0.05）.3,two groups of patients at the end of treatment,the experimental group of patients in the number of successful cases of bone bonding was 39 cases,the success rate of bone bonding was 97.50%,and the control group of successful cases of bone bonding was 36 cases,the success rate of bone bonding was 90.00%,there was no statistical significance（P>0.05）.4.There was no statistical significance in the keratinized gingival width of the labial side of the implant in the two groups on 7 days after the implantation suture removal（P>0.05）.During the treatment period,the labial keratinized gingival widths of the experimental group were（3.73±0.32）mm and（3.54±0.23）mm,respectively,after the second stage of implantation and the crown restoration,which were significantly lower than that of the control group,after the second stage of implantation and the crown restoration.The comparison had statistical significance（P<0.05）.In the experimental group,the labial keratinized gingival widths were（3.73±0.32）mm and（3.54±0.23）mm,respectively,at the second stage of implantation and 3 months after crown restoration,which were significantly lower than 7 days after suture removal.Similarly,in the control group,the keratinized gingival widths were（3.97±0.36）mm and（3.76±0.31）mm respectively at the second stage of implantation and 3 months after the crown restoration,which were significantly lower than 7 days after the suture removal.5.The labial plate thickness of the experimental group after implantation was lower than that of the experimental group at 3months after implantation（2.15±0.27）mm,at the second implantation（1.79±0.18）mm and at3 months after the crown repair（1.52±0.15）mm,and at 7 days after the suture removal（2.33±0.35）mm.Similarly,the labial plate thickness after implantation in the control group was lower at 3 months after implantation（1.92±0.24）mm,at second surgery（1.67±0.21）mm and 3months after crown repair（1.36±0.20）mm than at 7 days after suture removal（2.11±0.33）mm.After implantation,the labial bone plate thickness of the experimental group was significantly higher than that of the control group at 7 days after implantation,3 months after implantation,at the time of second implantation and 3 months after crown repair,with statistical significance（P<0.05）.6.The PES index score of the experimental group at 3 months after implantation crown repair included marginal gingival level（1.73±0.34）points,mesial gingival papilla（1.78±0.23）points,distal gingival papilla（1.69±0.33）points,soft tissue appearance（1.72±0.31）points,soft tissue texture（1.85±0.25）points and soft tissue color（1.87±0.27）points,alveolar bone appearance（1.85±0.22）points and total score（13.35±0.52）points,In the control group,the above indexes were（1.56±0.33）points,（1.65±0.24）points,（1.52±0.31）points,（1.54±0.30）points,（1.71±0.33）points,（1.73±0.31）points,（1.62±0.34）points,（13.08±0.44）points,respectively.The comparison was statistically significant（P<0.05）.Conclusion:According to the data,OSTEON^TMⅡwas found There was no statistical significance in the number of successful osteonuclization between OSTEON^TMⅡbone material and Bio-Oss bone material,or in the peri-implant bone mineral density 7 days after suture removal,at the second stage of implantation,or 3 months after crown restoration.However,in terms of the lip keratinized gingival width of the implant,there was statistical significance between the lip keratinized gingival width of the implant in the experimental group at the second stage of the implant surgery and 3 months after the crown repair and the control group at the second stage of the implant surgery and 3 months after the crown repair.At the same time,in terms of the thickness of the lip bone plate after the implant surgery,The thickness of the labial bone plate of the experimental group was significantly higher than that of the control group at 7 days after the implantation,3 months after the implantation,at the time of the second implantation and 3 months after the completion of the implantation crown repair,the comparison was statistically significant,and the PES score of the experimental group and the control group at 3 months after the implantation crown repair was statistically different in the corresponding indicators.In summary,in terms of short-term osseointegration and osteogenic effect,the artificial OSTEON^TMⅡ implant the clinical effect of was similar to that of the xenogeneic implant（Bio-Oss）.However,in terms of gingival tissue shape and aesthetic effect after short-term implant repair,the synthetic bone material implant OSTEON^TMⅡ the clinical efficacy of OSTEON^TMⅡ bone material was superior to that of Bio-Oss bone material.