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《Ningxia Medical Journal》 2018-08
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The application of autologous bone combined with CGF in the distal bone defect of the second molar with the third molar of mandibular obstruction

WANG Tai;SUN Zhigan;DING Xiaomei;ZHANG Lei;Oral and Maxillofacial Surgery,Yinchuan Stomatological Hospital;  
Objective To explore the application value of autologous bone combined with CGF in the distal bone defect of the second molar with the third molar of mandibular obstruction. Methods 30 patients who pull out the maxillary third molar and met the inclusive criterion were randomly divided into two groups according to the left side and right side. The experimental group(group A,30 cases) was discarded the bone by ultrasonic osteotome. After blending the autologous bone with CGF,the mixture was placed the second molar alveolar socket. The double membrane CGF and heterogeneous decellularized dermal matrix(ECM) were covered,then the surface of wound was sutured. In the control group(group B 30 patients),the traditional removal was performed on the other side and the mucosa was sutured directly after the operation. The depth of periodontal pocket in the second molar and the height of the CBCT imaging were compared. between the two groups. Results The clinical examination and CBCT were underway six months after the operation. The depth of periodontal pocket in the second molar was measured. The distal cheek side was(3. 26 ± 0. 69) mm and the distal lingual side was(12 + 0. 65) mm in group A,the group B was(3. 28 ± 0. 37) mm and(3. 30 ± 0. 42) mm. There was no significant difference between the two groups(t =-0. 128,P 0. 05). CBCT showed that the comparison between BAC and CEJ was(4. 48 + 1. 21) mm,(4. 46 ±1. 100) mm,(4. 26 ± 0. 75) mm in group A,and(5. 36 ± 1. 40) mm,(5. 43 ± 1. 55) mm,(5. 30 ± 1. 62) mm in group B. The difference between the two) groups was statistically significant(P 0. 05). Conclusion the application of autologous bone combined withe CGF in mandible impacted maxillary third molar to the second molars can further promote the formation of hard tissues and increase the height of Osteogenesis in the second molars far.
【Fund】: 宁夏银川市科技攻关项目银川市口腔医院颌面外科重点专科建设(20170911);; 宁夏卫生和计生委重点课题项目(2018NW072)
【CateGory Index】: R782.1
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