下頜角骨外板磨除術(shù)后咬肌不同處理方式與骨的適應(yīng)性研究.pdf

1、遵義醫(yī)學(xué)院碩士學(xué)位論文下頜角骨外板磨除術(shù)后咬肌不同處理方式與骨的適應(yīng)性研究姓名：黃國(guó)倩申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：口腔臨床醫(yī)學(xué)指導(dǎo)教師：段瑞平20090501遵義醫(yī)學(xué)院碩士學(xué)位論文下頜角骨外板艟除術(shù)后咬肌不同處理方式與骨的適應(yīng)性研究Studyofboneadaptabilityanddifferenttypeofprocessinginmassetermuscleaftermandibularangleouterplategrindingo

2、perationAbstractObjective：Tostudythedifferenceoftwotypesofprocessinginmassetermuscleandmandibularchangescomparativelyaftermandibularangleouterplategrindingoperationinrabbitsandtherelevantindicators，tOprovidetheoreticalba

3、sisforthechoiceofclinicalmandibularanglesurgeryMethods：50femalerabbitsagedthreemonthsweredividedinto2groups(25eachfromthegroupstudied)TheleftsidewastheoperativesideThefirstgroupwastosuturemassetermuscleandmedialpterygoid

4、muscleaftermandibularangleouterplategrindingoperation，thesecondgroupwasnotFiverabbitsofeachgroupwerekilledandselectedtissueswereremovedatthelth，2th，4th，8thand12thweek，respectivelyMassetermusclewereweighed，mandibularbonew

5、ithapartofmassetermuscleoftheoperativesidewerecutforpathologicalsectionandHEstainingCellularmorphologywereobservedSarcomerelength，mandibularthicknessandmusclecellareaweremearsuredResults：，Theweightofmassetermusclelessene

6、dinthesecondgroupat4th，8th，12thweekaftersurgery，therewasstatisticallysignificantdifferencebetweentwogroups(∥O05)thethicknessofmandibulardidnotthickeninginthesecondgroup，onthecontrary，thefirstgroupwasontheoppositestatusat

7、4th、8th、12thweek，respectivelyDifferenceswiththefirstgroupwerehighlysignificant(p005)Sarcomerelengthofthesecondgroupwereshorterthanthatofthefirstgroupat1st、2nd、4thweeksaftersurgery(p005)Themassetermusclecellareaofthesecon

8、dgroupweresmallerthanthatofthefirstgroupat8th、12thweekaftersurgery(pO05)Conclusion：Aftermandibularangleouterplategrindingoperation，adaptivealterationshavetakenplaceinsarcomerelength，massetermusclecellarea，bonecellsandSOO