实用口腔医学杂志
實用口腔醫學雜誌
실용구강의학잡지
JOURNAL OF PRACTICAL STOMATOLOGY
2014年
6期
783-786
,共4页
硬腭%锥形束 CT(CBCT)%骨质厚度%微种植体
硬腭%錐形束 CT(CBCT)%骨質厚度%微種植體
경악%추형속 CT(CBCT)%골질후도%미충식체
Hard palate%Cone-beam computed tomography%Bone thickness%Mini-screws
目的:研究青少年腭部骨质厚度分布,为腭部植入微种植体提供参考。方法:用 NNT Viewer 软件将20例青少年正畸患者的头颅锥形束 CT 扫描数据的腭部情况进行分析,以切牙孔为原点,间隔2 mm,矢状方向分为1~10共10个点,横向分为 A ~F 共6个点,测量统计60个点位的骨厚度,并行统计学分析。结果:B2、B3、C2、C3、D3、E3、E4、F4、F5各点间差异无统计学意义(P >0.05);而 F3点与 B2、B3、C2、C3、D3、E3、E4、F4、F5各点间的差异具有统计学意义(P <0.05);D3与 D4间差异具有统计学意义(P <0.05)。结论:适于微种植体植入的部位在腭中缝左右2~4 mm、离切牙孔4~6 mm 区域,而距腭中缝8~10 mm、离切牙孔6~8 mm 区域较为安全,同时可获得厚度为6 mm 左右的骨组织支持。
目的:研究青少年腭部骨質厚度分佈,為腭部植入微種植體提供參攷。方法:用 NNT Viewer 軟件將20例青少年正畸患者的頭顱錐形束 CT 掃描數據的腭部情況進行分析,以切牙孔為原點,間隔2 mm,矢狀方嚮分為1~10共10箇點,橫嚮分為 A ~F 共6箇點,測量統計60箇點位的骨厚度,併行統計學分析。結果:B2、B3、C2、C3、D3、E3、E4、F4、F5各點間差異無統計學意義(P >0.05);而 F3點與 B2、B3、C2、C3、D3、E3、E4、F4、F5各點間的差異具有統計學意義(P <0.05);D3與 D4間差異具有統計學意義(P <0.05)。結論:適于微種植體植入的部位在腭中縫左右2~4 mm、離切牙孔4~6 mm 區域,而距腭中縫8~10 mm、離切牙孔6~8 mm 區域較為安全,同時可穫得厚度為6 mm 左右的骨組織支持。
목적:연구청소년악부골질후도분포,위악부식입미충식체제공삼고。방법:용 NNT Viewer 연건장20례청소년정기환자적두로추형속 CT 소묘수거적악부정황진행분석,이절아공위원점,간격2 mm,시상방향분위1~10공10개점,횡향분위 A ~F 공6개점,측량통계60개점위적골후도,병행통계학분석。결과:B2、B3、C2、C3、D3、E3、E4、F4、F5각점간차이무통계학의의(P >0.05);이 F3점여 B2、B3、C2、C3、D3、E3、E4、F4、F5각점간적차이구유통계학의의(P <0.05);D3여 D4간차이구유통계학의의(P <0.05)。결론:괄우미충식체식입적부위재악중봉좌우2~4 mm、리절아공4~6 mm 구역,이거악중봉8~10 mm、리절아공6~8 mm 구역교위안전,동시가획득후도위6 mm 좌우적골조직지지。
Objective:To study the thickness distribution palatal bone in adolescents and provide a clinical reference for implanting mini-screws.Methods:Cone-beam CT head scan data of palate of 20 adolescent orthodontic patients were measured with NNT Viewer software.60 points of the palate bone on one side were designed as 1 -10 in sagittal direction and as A -F in transvers direction with incisive foramen as the point of A and 0,the distance between each 2 adjacent points was 2 mm.The bone thickness of the 60 points were measured and statistically analyzed.Results:There were no significant differences among B2,B3,C2,C3,D3,E3,E4,F4 and F5(P >0.05).Statistically significant difference was found between F3 and B2 or B3,C2,C3,D3,E3,E4,F4 and F5(P <0.05).There was significant difference between D3 and D4(P <0.05).Conclusion:The appropriate areas for implanting mini-screws in palate may be about 2 -4 mm near the palatal suture and 4 -6 mm behind incisor canal,and 8 -10 mm near the palatal su-ture,6 -8 mm behind incisor canal.Those regions are safe for implanting mini-screws and can provide about 6 mm bone tissue sup-port.