欢迎来到天天文库
浏览记录
ID:15116682
大小:36.50 KB
页数:10页
时间:2018-08-01
《不同材料铸造的义齿基托对承托区口腔黏膜微生物的影响》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、不同材料铸造的义齿基托对承托区口腔黏膜微生物的影响【摘要】目的:了解不同金属铸造基托义齿戴入前后口腔承托区黏膜表面微生物的附着变化。方法:用钛合金及钴铬合金铸造基托修复上颌肯氏I类或II类缺失患者各32例,检测患者戴牙前、戴义齿1个月、戴义齿3个月承托区黏膜面可培养菌总量、菌组成比的变化。结果:钴铬合金基托承托区口腔黏膜可培养菌总量戴牙3个月和1个月与戴牙前相比显著增多(P<0.01);钛合金基托承托区口腔黏膜可培养菌总量在各时期差异均无显著性(P>0.05);和钛合金基托相比钴铬合金基托对应承托区黏膜可培养菌总量在戴牙3个月明显增多(P<0.01)。钴铬合金基托对应承托区黏膜,乳杆
2、菌、白色念珠菌、链球菌及放线菌组成比在戴牙1个月和3个月比戴牙前显著增高(P<0.01),而奈瑟氏菌显著下降(P<0.01);钛合金基托对应承托区黏膜,链球菌、放线菌、乳杆菌及白色念珠菌组成比戴牙3个月比备牙前显著增高(P<0.01),奈瑟氏菌显著下降(P<0.01)。与钛合金基托相比,钴铬合金基托更易促进链球菌、放线菌、乳杆菌及白色念珠菌生长,但不易促进奈瑟氏菌的生长(P<0.01)。结论:钛合金作为铸造基托材料优于钴铬合金,能减少承托区黏膜表面细菌附着,有利于口腔黏膜健康。【关键词】义齿基托;铬合金;钛合金;口腔黏膜;微生物10Abstract:Objective:Toobser
3、vethechangesinmicroflraattechedtothesurfaceoforalbearingareabeforeandafterusingtitaniumalloybasedentureandco-cralloybasedenture.Methods:Sixty-fourpatientswhowerereadytoacceptremovablepartialdentureswereselectedanddividedintotwogroups.Thirty-twopatientsusedtitaniumalloybasedenturewhiletheotherth
4、irty-twopatientsusedco-cralloybasedenture.Thenatthefollowingthreepoints:beforedentureswereinserted,onemonthafterwearingandthreemonthsafterwearing,thetotalcultivablefloraewerecountedandtheproportionsofbacteriadetectedonthedenturebearingareaswerecalculated.Results:Co-cralloybasedentureenhancedthe
5、accumulationofmicrofloraonstress-bearingareasthreemounthsafterwearing(P<0.01).Nodidthewearingoftitaniumalloybasedentureonemounthorthreemounthsafterwearing(P>0.05).Itwassignificantbetweenthetwokindbasethreemounthsafterwearing(P<0.01).ThepercentagesofLactobacilli,Candidaalbican,Actinomyc
6、esdetectedonstress-bearingareasalsoincreasedandNeisseriadecreasedsignificantlyonemounthorthreemounthsafterwearingCo-cralloybasedenture(P<0.01).Sodidthewearingoftitaniumalloybasedenturethreemounthsafterwearing(P<0.01).TheincrementofLactobacilliandCandida10albican,ActinomycescausedbyCo-cral
7、loybasewashigherthanthosecausedbytitaniumalloybasedentureanditwascontrarytoNeisseria(P<0.01).Conclusion:TitaniumalloyasbasematerialisbetterthanCo-cralloy.Itmayrestrainquantityofmicrofloraonstress-bearingareas,andisgoodfororalmu
此文档下载收益归作者所有