鍍金對金屬全冠固位力的影響.pdf

1、南昌大學醫(yī)學院碩士學位論文鍍金對金屬全冠固位力的影響姓名：張小軍申請學位級別：碩士專業(yè)：口腔臨床醫(yī)學指導教師：石連水20080501ABSTRA(了rABSTRACTObjectives：Thisstudyaimswastogildindifferentpartoftissuesurfaceofmetalcompletecrown，tomakealamellargoldcovertothetissuesurfaceofthecrown，

2、toimprovethebiologicefficiencyofmetalcompletecrownMeasuredtheretentionsizeofcommonmetalcompletecrownandgiltmetalcompletecrown，togetthemessageofchanginformationoftheretention，togetreferenceforclinicistalternativetousegild

3、ingnoprecious—metalceramiccrownMethods：Choosedanormalappearancemaxillaryfirstpremolarchippingthedentalroottomakeitslengthremains8mm，thedentalaxialraywasatequalpacewithtoothaxialrayTomaketherootembedinbackingofselfmadecir

4、cularcylinderselfcuringacrylicresin，dentalcrownaxialraywasatequalpacewithcircularcylinderaxialrayandverticalwithhorizontalplane，thediameterofthebackingwas8mmtheheightofthebackingwas10mmToembed2mmbelowtheabutmentcervicalm

5、arginUniformitystrippinged2mmonocclusalsurface，grinded900shoulderwithdentalbevellerthewidthoftheshoulderwas080mm，thedegreeofpolymerizationwas50Togetthetoothmodelwithmethylsiliconerubbertomaketeethwaxpattern，gotaCo—Crallo

6、ymetaldiewithcasting，abratoritTomakemetalcompletecrownwaxpatternonthemetaldiewitharoundringonwaxpatternocclusalsurface，andtipoftheringpassedthecrownaxialrayGettingNiCralloymetalcompletecrownwithembeddingandcasting，allthe

7、crowmabratorThereweresixtymetalcompletecrowns，theywererandomlydividedto3groups，eachgrouphastwentycrowns：crownsinfirstgroupwerecommonmetalcompletecrowns；crownsinsecondgroupweregildinginthetissuesurfaceof1／3cervicalmargin；

8、crownsinthirdgroupweregildinginallthetissuesurface，thegildingthicknesswas犁mThemetalcompletecrownswerecementationinthemetaldiewithglassionlutingagent，with10kgpressure10minutes，thentheywereaqueousbath24hoursin37。CwaterTome