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1、4.Inmaxillaryanteriorregion,thelargestpartofthebonemassatthemesio-distaldistanceisbetweentheincisorfromthealveolarcrestat8mm(3.54±0.40mmmm),thesmallestpartisbetweenincisorandlateralincisorfromthealveolarcrestat2mm(1.75±0.32mm).Thelargestpartofthebonemassatthelabialalveolarbonethicknessisbetween
2、incisorandlateralincisorfromthealveolarcrestat8mm(7.62±0.14mm),thesmallestpartisbetweentheincisorfromthealveolarcrestat2mm(5.18±0.17mm).Thelargestpartofthebonemassatthelabialalveolarbonedensityisbetweentheincisorfromthealveolarcrestat2mm(845.57±96.10HU),thesmallestpartisbetweenthelateralincisor
3、andcaninefromthealveolarcrestat8mm(601.71±99.38HU).Thelargestpartofthebonemassatthelabialcorticalbonethicknessisbetweenthelateralincisorandcaninefromthealveolarcrestat6mm(1.23±0.21mm),thesmallestpartisbetweentheincisorfromthealveolarcrestat2mm(0.81±0.24mm).Conclusions1.Inthemaxillaryanteriorreg
4、ion,themeasurementsofthemesiodistaldistanceandlabialalveolarbonethicknessshowedaconsistentincreaseinthestudiedsiteswhenmovingapically.Whilethemeasurementsofthelabialalveolarbonedensityshowedaconsistentdecreaseinthestudiedsiteswhenmovingapically.Themeasurementsofthelabialcorticalbonethicknesssho
5、wedadecreasebetweenthelateralincisorandcaninefromthealveolarcrestat6mmand8mm,butotherimplantationsitesshowedaconsistentincreasewhenmovingapically.2.Themostnarrowmesiodistaldistanceisbetweentheincisorandlateralincisor,whentoimplantthemini-implantanchorage,shouldchoosesmallerdiametermini-implant(
6、≤1.2mm).3.Forallmeasurements,theresultsofthisstudyshowedthatbetweentheincisorthemesiodistaldistanceandthelabialalveolarbonedensityarethebiggest,butthelabialcorticalbonethicknessisthesmallest;betweenthelateralincisorandcaninethelabialcorticalbonethicknessandthelabialalveolarbonethicknessfromtheI
7、V万方数据alveolarcrestat2mm,4mm,6mmarethebiggest,butthelabialalveolarbonedensityisthesmallest.Therefore,inthisstudythebestimplantationsitesare1-1and2-3.Keywords:Maxillaryanteriorregion,Mini-implantanchorage,CBCT,ImplantationsiteV万方数据目
