中华口腔正畸学杂志
中華口腔正畸學雜誌
중화구강정기학잡지
CHINESE JOURNAL OF ORTHODONTICS
2014年
2期
87-90
,共4页
陈岩%Shin Hong-in%邓耀强%赵文婷%Kyung Hee-moon
陳巖%Shin Hong-in%鄧耀彊%趙文婷%Kyung Hee-moon
진암%Shin Hong-in%산요강%조문정%Kyung Hee-moon
不锈钢%钛合金%正畸微种植体%即刻负载%骨结合
不鏽鋼%鈦閤金%正畸微種植體%即刻負載%骨結閤
불수강%태합금%정기미충식체%즉각부재%골결합
stainless steel%Ti-alloy%micro-implants%immediate loading%miniscrew-bone integration
目的 临床与组织学比较即刻负载对正畸用不锈钢及钛合金微种植体及周围组织的影响.方法 不锈钢及钛合金微种植体各24枚,植入于3头18个月龄的微型猪上颌骨内.相邻两枚种植体之间用镍钛闭合弹簧即刻加载约150克左右的水平力.十周后检查微种植体的稳定性.每组选择8枚稳定性好的微种植体进行不脱钙处理,制作组织学磨片,在光学及荧光光学显微镜下观察.用组织测量学图像分析软件测量两组微种植体的骨结合率.P＜0.05有统计学意义.结果 1.植入时折断微种植体:不锈钢组2枚,折断率为7.7％;钛合金组9枚,折断率为27.3％;P＞0.05.2.临床成功率:不锈钢组75.0％,钛合金组83.3％;P＞0.05.3.骨结合率:不锈钢组平均值16.94％,钛合金组37.33％,P＜0.05.结论 不锈钢微种植体在即刻负载水平力的条件下有较高的临床成功率和骨结合率,但是,明显的低于钛合金微种植体.
目的 臨床與組織學比較即刻負載對正畸用不鏽鋼及鈦閤金微種植體及週圍組織的影響.方法 不鏽鋼及鈦閤金微種植體各24枚,植入于3頭18箇月齡的微型豬上頜骨內.相鄰兩枚種植體之間用鎳鈦閉閤彈簧即刻加載約150剋左右的水平力.十週後檢查微種植體的穩定性.每組選擇8枚穩定性好的微種植體進行不脫鈣處理,製作組織學磨片,在光學及熒光光學顯微鏡下觀察.用組織測量學圖像分析軟件測量兩組微種植體的骨結閤率.P＜0.05有統計學意義.結果 1.植入時摺斷微種植體:不鏽鋼組2枚,摺斷率為7.7％;鈦閤金組9枚,摺斷率為27.3％;P＞0.05.2.臨床成功率:不鏽鋼組75.0％,鈦閤金組83.3％;P＞0.05.3.骨結閤率:不鏽鋼組平均值16.94％,鈦閤金組37.33％,P＜0.05.結論 不鏽鋼微種植體在即刻負載水平力的條件下有較高的臨床成功率和骨結閤率,但是,明顯的低于鈦閤金微種植體.
목적 림상여조직학비교즉각부재대정기용불수강급태합금미충식체급주위조직적영향.방법 불수강급태합금미충식체각24매,식입우3두18개월령적미형저상합골내.상린량매충식체지간용얼태폐합탄황즉각가재약150극좌우적수평력.십주후검사미충식체적은정성.매조선택8매은정성호적미충식체진행불탈개처리,제작조직학마편,재광학급형광광학현미경하관찰.용조직측량학도상분석연건측량량조미충식체적골결합솔.P＜0.05유통계학의의.결과 1.식입시절단미충식체:불수강조2매,절단솔위7.7％;태합금조9매,절단솔위27.3％;P＞0.05.2.림상성공솔:불수강조75.0％,태합금조83.3％;P＞0.05.3.골결합솔:불수강조평균치16.94％,태합금조37.33％,P＜0.05.결론 불수강미충식체재즉각부재수평력적조건하유교고적림상성공솔화골결합솔,단시,명현적저우태합금미충식체.
Objective The aim of this study was to investigate the effect of immediate loading on the surrounding tissues of the stainless steel and Ti-alloy micro-implants in mini-pigs clinically and histologically.Methods 24 stainless steel and Ti-alloy micro-implants were planted by self-drilling in the buccal side of the maxillae of three 18 months old mini-pigs.Approximately 150 g constant and continuous force by stretching closed nickel-titanium springs were immediately loaded for every two adjacent micro-implants for ten weeks.Undecalcified section of micro-implants and surrounding tissues were studied with optical microscope and fluorescent microscope.With iMT software,miniscrew-bone integration values were calculated.Results 1.During insertion,two stainless steel miniscrews fractured (7.7％) and 9 Ti-alloy micro-implants fractured (27.30％) (P＞0.05).2.The clinical successful placement rate was 75％ for stainless steel microimplant group and 83.3％ for Ti-alloy group,(P＞0.05).3.The integration values were 16.94％ for SS group and 37.33％ for Ti-alloy group (P＜0.05).Conclusions Stainless steel micro-implants can sustain medium immediate loading and receive an desired osseointegration intensity,but were inferior to Ti-alloy group in both aspects.
