冷光美白治療正畸托槽粘結(jié)部位色斑療效的實(shí)驗(yàn)研究

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1、冷光美白治療正畸托槽粘結(jié)部位色斑療效的實(shí)驗(yàn)研究冷光美白治療?正畸托槽粘結(jié)部位色斑療效的實(shí)驗(yàn)研究［摘耍］目的：研究冷光美白治療對正畸后托槽粘結(jié)部位不規(guī)則色斑的療效。方法：離體牙20顆，分成A、B兩組，各10顆。A組酸蝕后采用牙釉質(zhì)粘結(jié)劑劑粘結(jié)托槽，B組直接采用玻璃離子粘結(jié)。將兩組離體牙人工染色4周后，拆除托槽并進(jìn)行冷光美白處理。處理前后分別采用Crystaleye分光光度記型全牙比色儀測量x［關(guān)鍵詞］冷光美白；正畸；托槽；染色；色斑；色差［中圖分類號1R783［文獻(xiàn)標(biāo)識碼］A［文章編號］1008-6455(2014)15-

2、1281-03Theexperimentalstudyoftheeffectofbeyondcold-lightwhiteningonthestainsintheadhesiveareaoforthodonticbracketsZHANGHai-yanl,XINGXu~na2,GUODong-xiao2(1.DepartmentofProsthodontics,ZhengzhouStomatologyHospital,Zhengzhou450000,Henan,China；2.DepartmentofProsthodon

3、tics,SchoolofStomatology,ZhengzhouUniversity)Abstract：0bjectiveTostudythecurativeeffectofcold-lightwhiteningontheirregularstainsofthebondedareaoforthodonticbracketsafterbeingfixed.MethodsThemethodistodivide20vitroteethintogroupAandgroupB,eachincluding10.Thebracke

4、tsofgroupAareboundedwithenameladhesiveafteretching,whileglassionicisuseddirectlybygroupB.Afterbeingdyedforfourweekstheteetharetakenout?Thebracketsareremovedandwhitenedbycold-light.Thecolorimetricvalueofthesamplesismeasuredbeforeandafterthetreatmentthroughthespect

5、rophotometriccolorcomparator,recordthemeasuredL*,a*,b*,andthechromaticaberrationdeltaEiscalculatedrespectivelybeforeandafterwhitening.SPSS17.0softwareisusedtomakeastatisticalanalysis?ResultsThechromaticaberrationdeltaEinthetwosamplesisbothabove3.7.L^value,a^value

6、b^valuechangeobviously,whichhavestatisticalsignificance(P<0.05)；Thedifferencesbetweenthevaluesofchromaticaberrationbeforeandafterwhiteningtreatmentinbothsampleareofnostatisticalsignificance(P>0.05)?ConclusionCold-lightwhiteningtreatmentcaneffectivelyremovetheirre

7、gularstainsintheboundedareaoforthodonticbrackets?Keywords：cold-lightwhiteningtreatment；orthodontictreatment；bracket；dye；stains越來越多的成年人和青少年通過正畸治療獲得了排列整齊的牙齒[1],但正畸治療后托槽粘結(jié)部位經(jīng)常會出現(xiàn)不規(guī)則的色斑或顏色加重現(xiàn)象，嚴(yán)重影響了美觀，因此正畸治療后美白治療成為患者的迫切要求。木研究通過評價(jià)冷光美口對正畸治療后不同粘結(jié)材料托槽粘結(jié)部位色斑的療效,以期為臨床正畸患者矯

8、治后的牙齒美口治療提供一定的理論基礎(chǔ)和臨床指導(dǎo)。1資料和方法1?1一般資料：離體前磨牙20顆。納入標(biāo)準(zhǔn)：選擇患者年齡14?28歲，正畸拔除的活髓前磨牙，牙體完整無隱裂、舗壞，無結(jié)石、色素沉著；牙面顏色均勻，非四環(huán)素牙、氟斑牙等。前磨牙托槽20個(gè)(MASEL公司，美國)。1.2儀器與試劑：Beyond冷光美白儀、Cry