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1、第34卷第2期贛南醫(yī)學院學報Vo134No．22014年4月JOURNALOFGANNANMEDICALUNIVERSITYA艘．2014三種不同托槽粘結強度的體外實驗研究張秋芳，李志華(1．贛州市人民醫(yī)院，江西贛州341000；2．南昌大學附屬口腔醫(yī)院，江西南昌330006)摘要：目的：評價國產(chǎn)陶瓷托槽的粘結性能，為臨床提供參考。方法：將60顆上頜前磨牙包埋后隨機分成6組，分別用光固化復合樹脂粘結劑、化學固化復合樹脂粘結劑粘結國產(chǎn)陶瓷托槽、進口陶瓷托槽、國產(chǎn)金屬托槽，用Instron萬能材料力
2、學實驗機測試其抗剪切強度，同時計算牙面粘結劑的殘留指數(shù)(AdhesiveRemnantIndex，ARI)，進行統(tǒng)計處理。結果：國產(chǎn)陶瓷托槽與進口陶瓷托槽、國產(chǎn)金屬托槽之間有統(tǒng)計學差異(P<0．05)；統(tǒng)計結果顯示2種粘結劑之間差異無統(tǒng)計學意義(P>0．05)；各組ARI指數(shù)無顯著性差異(P>0．05)。結論：國產(chǎn)陶瓷托槽的抗剪切強度明顯低于進口陶瓷托槽和國產(chǎn)金屬托槽；國產(chǎn)陶瓷托槽無論與光固化復合樹脂粘結劑還是化學固化復合樹脂粘結劑聯(lián)合使用，都能滿足臨床需要；所有組別中，粘結破壞多位于托槽與粘結
3、劑界面。關鍵詞：國產(chǎn)陶瓷托槽；光固化復合樹脂粘結劑；化學固化復合樹脂粘結劑；抗剪切強度；粘結劑殘余指數(shù)中圖分類號：R783．1文獻標志碼：A文章編號：1001—5779(2014)02—0189—03TheshearbondstrengthofthreekindsofbracketsinvitroZHANGQiu．fang，LIZhi—hua(1．GanzhouPeople~Hospital，Ganzhou，ji~g,,i341000；2．TheAffiliatedStomatologyHosp
4、italofNanchangUniversity，Nanchang，ji~xi330006)Abstract：Objective：Toinvestigatetheshearbondstrength(SBS)ofadomesticceramicbracketforclinicaluse．Meth-ods：60maxillarypremolarsweredividedinto6groupsrandomly：Thedomesticceramicbracket、theimportedceramicbra
5、cketandthedomesticmetalbracketwerecoupledwithlight-curedadhesiveandchemicallycuredadhesiveseparately．AllthesamplesweretestedbyInstronappliance．Evaluatingtheadhesiveremnantindex(ARI)byobservingthesurfaceoftheteethafterdebonding．Allstatisticswereanalys
6、ed．Results：Therewassignificantdifferencebetweenthedomesticceramicbracketandtheimportedceramicbracketorthedomesticmetalbracket(P<0．05)；withoutsignificantdifferenceofARIinallgroup(P>0．05)．Conclusions：TheSBSofthedomesticceramicbracketwassignificantlylow
7、erthantheSBSoftheimportedceramicbracketorthedomesticmetalbracket；ClinicallyadequateSBSwasobtainedwhenthedomes—ticceramicbracketcoupledwithlight—curedorthodonticadhesiveorchemicallycuredorthodonticadhesive．Thefailuresiteofoverwhelmingmajorityofthesamp
8、leswasthebrackets／adhesive．Keywords：domesticceramicbracket；light—curedorthodonticadhesive；chemicallycuredorthodonticadhesive；Shearbondstrength(SBS)陶瓷托槽由于美觀性、耐用性和抗染色性，得到壞，無裂紋，無劃痕，非四環(huán)素牙，非氟斑牙，未經(jīng)化正畸患者的青睞而廣泛應用于臨床。如今，國產(chǎn)陶學處理。清洗干凈后保存于蒸餾水中。國產(chǎn)陶瓷托瓷托槽在國內(nèi)運用Et益廣泛，
