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ID:33004184
大小:1.19 MB
页数:30页
时间:2019-02-19
《不同牵张成骨方式在下颌骨缺损修复中的应用》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、安徽医科人学硕Ij学位论文Applicationofdifferentdistractionosteogenesisinobjective:mandibuladefectrestorationAbstractOralandMaxillofacialsurgicaldistractionosteogenesis(DO)isnowmainlyapplyinginmicro-mandibulaabnormalitycausedbycongenitalgrowthofmandibula,andthedistractionosteogenesisincludesmonofocaldistractio
2、nbifocaldistraction,trifocaldistraction.Ithasonlyalittleexperimentalresearchandclinicalapplicationintherestitutionofasegmentaldefectofmandibula.Almostofthetoolsfordistractionosteogenesisbelongtoouter-mouthstyleones,whichhavefairlylargedifferenceontheaspectsofthequality,designstructure,andmodeoffix
3、ingofthetoolsfordistractionosteogenesisrequiredbymandibuladefectorthodontics.Thistest,accordingtointernationalstandard,designsoutbuilt-inbifocaldistractionandtrifocaldistraction.Throughestablishingdifferentbifocaldistractionandtrifocaldistractiontoconductstretchingtothegoatmandibuladefect,andobser
4、vesandresearchestheosteogeneticprocesstocomparewiththenewboneformationthroughtwodifferentmethods.Methods:8adultgoatsof10-12monthsoldwererandomlydividedintobifocalDistractiongroup(n=4)andtrifocaldistractiongroup(n=4)whichwasself-designedaccordingtoInternationalDistractionGroupstandard.Killthetwogro
5、upgoats8weeksaftercompletionofdistraction.NewlygrownbonetissuesampleatjawdistractionareahasbeenanalyzedbyX—Rayandbonedensitometry,andpartofwhichwasmadeintodelimingparaffinsectionandHEcolorations.Stifftissuemicrosectionscanning5=fc=徽医科人学硕.1j学位论义electronmicroscopyandStifftissuemicrosectiontetracycli
6、nefluorescencepairedlabeledtechniqueanalysisisaswelldonetothesample.BonedensitometryanalysisdataiscalculatedbystatisticalsoftwareSPSS11.0.andwhenP<0.05thediscrepancyisofsignificancemeaning.Resuits:Allthe8testgoatscanalivetotheplannedtimewithoutinfectioninthewoundofthestretchingarea.Allofwhichcanta
7、kefoodinagoodmannerafteroperation,andtheirwoundscouldhealinStageIandstitchescouldbetakenoutin7days.Afterexecution,itcanbeobservedthatallthestretchingtoolsarewellfixedwithoutanylooseness;newboneisformedinthestretc
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