Three-dimensional Measurement And Application Of The Template In The Mandibular Implant

ObjectiveThesis Aiming At Studying Through the 20 cases of teeth defect of the Mandibular nervetube listed adult Cone beam CT scans and 3D reconstruction,Understanding the neural tube inthe mandibular jaw line and go position,Planting area to the mandible form and bone mass,makepersonalized template surgery,For mandibular planting operation to provide the reference.MethodsSelect 20 cases of mandible listed lack teeth to do the repair of the mandibular plantingpatients from the Shanxi Red Cross oral hospitall do Cone beam CT scan,Scan data to DICOMformat directly to simplant professional software to reconstruct mandibular measurementanalysis.According to the analysis of measuring results formulation personalization surgerytemplate and applied to the operation.ResultsMandibular nerve tube from mandibular foramen to the second molar near the lingual ofBone ,the Bone cortex of Mandibular nerve tube join with lingual Bone cortex. there is moreCancellous bone in Mandibular nerve tube and Buccal bone cortex.When going to the firstmolar ,Mandibular nerve tube turned to buccal .After Measuring, the Mandibular nerve tubedeviate 23.27°±5.05°。When Mandibular nerve tube going to the dentes premolares whichdivided into Cut tooth tube and Chin tube.Chin tube goes to Outside、up、and back, theintersection angle of Chin tube and mandibular is 66.48±7.43°,Average diameter of Chin tube is1.70±0.36mm,Diameter of the length is 7.89±1.06mm,the distance from top of Alveolar ridge tothe Starting place of Chin tube is 16.10±3.29mm，Finally the mental foramen。Distance from thefront of the mental foramen and mandible neural tube horizontal 4.02±0.49mm.Cut teeth tubecontinue to walk and neural tube line of the same name neural tube anastomosis.The shortage ofalveolar bone width ratio relatively high In the mandibular implant-surpported,According toindividual patients,CBCT data combined With simplant analysis software,Teeth area of bone、bone mass、Important anatomic structure Measurement and analysis.Production operationnavigation template, can make the operation more accurately and safe. Conclusions1. mandibular implant should pay attention not to damage the mental foramen 4mm range,here tube out of shape for the lower jaw to the forefront and the turning point occurs.2. Mandibular implant-surpported anterior teeth area of the alveolar width of relatively highproportion of insufficient, Cut tooth tube and molar areaheight shortage of relatively highproportion.3. CBCT image with simplant software provides the accurate and efficient measurementanalysis platform, for growing preoperative design is of great significance.