激光杂志
激光雜誌
격광잡지
LASER JOURNAL
2014年
1期
48-50
,共3页
孔媛媛%江千舟%陈敏乐%陈艺
孔媛媛%江韆舟%陳敏樂%陳藝
공원원%강천주%진민악%진예
E r:YA G激光%牙釉质%玻璃离子%剪切粘接强度
E r:YA G激光%牙釉質%玻璃離子%剪切粘接彊度
E r:YA G격광%아유질%파리리자%전절점접강도
Er:YAG laser%Enamel%Glass ionomer cements%Shear bond strength
目的：采用剪切力测试,比较Er：YAG激光照射对牙釉质与玻璃离子之间剪切粘接强度的影响.方法：选取105颗年轻前磨牙、第三磨牙,用涡轮手机按近远中方向将离体牙切割成颊/舌两部分.将受试牙随机分成7组,1组：裂钻预备,2组：裂钻+37%磷酸,3组：裂钻+玻璃离子液,4组：Er：YAG激光预备,5组：Er：YAG激光+37%磷酸,6组：37%磷酸+玻璃离子液,7组：Er：YAG激光+二次激光.玻璃离子充填,将粘接试件置于37°蒸馏水中储存24小时后进行剪切力测试,计算粘接试件牙的抗剪切粘接强度.扫描电子显微镜观察牙釉质经不同处理后的表面形态变化。结果：37%磷酸和玻璃离子液预处理均有助于即刻剪切粘接强度的提高,差异有统计学意义（p<0.05）。激光预备较裂钻预备的即刻剪切粘接强度大,差异有统计学意义（p<0.05）。而在激光预备面的基础上使用37%磷酸预处理和二次激光的应用与单纯的激光预备相比,其即刻剪切粘接强度并未提高,差异无统计学意义（p>0.05）。结论：Er：YAG激光预备、37%磷酸和玻璃离子液都可以提高牙釉质和玻璃离子之间的剪切粘接强度.37%磷酸、玻璃离子液预处理及二次激光不能使E r：YA G激光预备后的剪切粘接强度提高。
目的：採用剪切力測試,比較Er：YAG激光照射對牙釉質與玻璃離子之間剪切粘接彊度的影響.方法：選取105顆年輕前磨牙、第三磨牙,用渦輪手機按近遠中方嚮將離體牙切割成頰/舌兩部分.將受試牙隨機分成7組,1組：裂鑽預備,2組：裂鑽+37%燐痠,3組：裂鑽+玻璃離子液,4組：Er：YAG激光預備,5組：Er：YAG激光+37%燐痠,6組：37%燐痠+玻璃離子液,7組：Er：YAG激光+二次激光.玻璃離子充填,將粘接試件置于37°蒸餾水中儲存24小時後進行剪切力測試,計算粘接試件牙的抗剪切粘接彊度.掃描電子顯微鏡觀察牙釉質經不同處理後的錶麵形態變化。結果：37%燐痠和玻璃離子液預處理均有助于即刻剪切粘接彊度的提高,差異有統計學意義（p<0.05）。激光預備較裂鑽預備的即刻剪切粘接彊度大,差異有統計學意義（p<0.05）。而在激光預備麵的基礎上使用37%燐痠預處理和二次激光的應用與單純的激光預備相比,其即刻剪切粘接彊度併未提高,差異無統計學意義（p>0.05）。結論：Er：YAG激光預備、37%燐痠和玻璃離子液都可以提高牙釉質和玻璃離子之間的剪切粘接彊度.37%燐痠、玻璃離子液預處理及二次激光不能使E r：YA G激光預備後的剪切粘接彊度提高。
목적：채용전절력측시,비교Er：YAG격광조사대아유질여파리리자지간전절점접강도적영향.방법：선취105과년경전마아、제삼마아,용와륜수궤안근원중방향장리체아절할성협/설량부분.장수시아수궤분성7조,1조：렬찬예비,2조：렬찬+37%린산,3조：렬찬+파리리자액,4조：Er：YAG격광예비,5조：Er：YAG격광+37%린산,6조：37%린산+파리리자액,7조：Er：YAG격광+이차격광.파리리자충전,장점접시건치우37°증류수중저존24소시후진행전절력측시,계산점접시건아적항전절점접강도.소묘전자현미경관찰아유질경불동처리후적표면형태변화。결과：37%린산화파리리자액예처리균유조우즉각전절점접강도적제고,차이유통계학의의（p<0.05）。격광예비교렬찬예비적즉각전절점접강도대,차이유통계학의의（p<0.05）。이재격광예비면적기출상사용37%린산예처리화이차격광적응용여단순적격광예비상비,기즉각전절점접강도병미제고,차이무통계학의의（p>0.05）。결론：Er：YAG격광예비、37%린산화파리리자액도가이제고아유질화파리리자지간적전절점접강도.37%린산、파리리자액예처리급이차격광불능사E r：YA G격광예비후적전절점접강도제고。
Objective: To investigate the effect of glass ionomer cement (GIC) bonding to enamel surfaces after the Er: YAG laser preparing by shear bond strength (SBS) test. Methods: One hundred and five human young premolars and molars teeth were bisected longitudinally in a mesio-distal direction with a diamond saw. The specimens were randomly divided into seven groups , 1: bur preparation, 2: bur preparation + acid by 37% phosphoric acid, 3: bur preparation + GIC liquid, 4: laser preparation, 5: la-ser preparation + acid by 37% phosphoric acid, 6: laser preparation + GIC liquid; 7: laser preparation + second laser. We then filled GIC, test after storing 24 hours in distilled water, evaluated for shear bond strength and observed under a scanning electron (SEM). Results: Pretreatment with37% phosphoric acid and GIC liquid could improve SBS of GIC bonded to bur-prepared enam-el. Laser preparation resulted in more SBS than in bur preparation. A significant difference was observed. However, 37% phos-phoric acid and second laser followed laser preparation did not improve SBS. There was no significant difference between these groups. Conclusions: Er: YAG laser preparation, 37% phosphoric acid or GIC liquid could improve SBS of GIC bonded to bur-prepared enamel. However, the 37% phosphoric acid, GIC liquid or the second laser for Er: YAG laser-prepared enamel could not make the SBS increased.
