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Evaluation of computer generated stents for proper implant placement / Farag Sobhy Elsayed Elgohary ; Supervised Khairy Abdulhamed Elmorsy , Mohamed Farid Shehab

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Cairo : Farag Sobhy Elsayed Elgohary , 2015Description: 140 P. : charts , facsimiles , photographs ; 25cmOther title:
  • تقييم الجبيرة المصنعة بالكمبيوتر لوضع افضل لغرسات الاسنان [Added title page title]
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Dissertation note: Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Oral and Maxillofacial Surgery Summary: The present study was conducted on 24 implants inserted in six patients (5 females and one male) seeking implant placement of their lost teeth selected from outpatient clinic; Oral and Maxillofacial Surgery Department, Faculty of Oral and Dental Medicine, Cairo University. The aim of current study was to evaluate the accuracy of implant placement using a computer generated surgical stent fabricated from interactive computer software programs and cone beam computed tomography (CBCT) scan data, without raising soft tissue {uFB02}ap. Preoperative diagnosis & evaluation of the patients was carried out through a combination of clinical and radiographic examination. Clinical examination included intraoral examination of Inter arch space, examination of the ridge shape and volume and preliminary measurements of residual ridge width using Edge Ridge Mapping Caliper. Preoperative orthopatomnograms were used to evaluate Bone height and shape of the edentulous area of the ridge. Fabrications of SGT was done through different steps as following; fabrication of radiopaque template by duplication of the acrylic denture using X-resin material, then all patients were scanned preoperatively using scanora CBCT machine while wearing the RO templates while biting on cotton pellets to ensure maximum compression of soft tissue mucosa, then Segmentation, threshold-processing of CBCT data, virtual implant placement and design of the SGT were done using 2Mimics innovation suite 15.03 program, then after finishing the virtual planning the stent was exported as (STL) file format, for rapid prototyping process by fused deposition modeling technique using MOJO desktop machine. Implant placement was performed under local anesthesia, in Minor Surgical clinic; SGT was placed with cotton pellets on the occlusal surface and patient was asked to bite against the opposing teeth or denture, then The SGT was secured in place using mono-cortical screws then Custom made Metal Sleeves were placed in their fitting hubs on the Surgical Guide Template, and Full sequence drillings preformed using custom made drill guide keys until the proper implant diameter was reached, After the drilling process was finished, the fixing screws were unscrewed and the SGT was removed, then the cover screws were placed
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Item type Current library Home library Call number Copy number Status Barcode
Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.09.13.M.Sc.2015.Fa.E (Browse shelf(Opens below)) Not for loan 01010110070570000
CD - Rom CD - Rom مخـــزن الرســائل الجـــامعية - البدروم المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.09.13.M.Sc.2015.Fa.E (Browse shelf(Opens below)) 70570.CD Not for loan 01020110070570000

Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Oral and Maxillofacial Surgery

The present study was conducted on 24 implants inserted in six patients (5 females and one male) seeking implant placement of their lost teeth selected from outpatient clinic; Oral and Maxillofacial Surgery Department, Faculty of Oral and Dental Medicine, Cairo University. The aim of current study was to evaluate the accuracy of implant placement using a computer generated surgical stent fabricated from interactive computer software programs and cone beam computed tomography (CBCT) scan data, without raising soft tissue {uFB02}ap. Preoperative diagnosis & evaluation of the patients was carried out through a combination of clinical and radiographic examination. Clinical examination included intraoral examination of Inter arch space, examination of the ridge shape and volume and preliminary measurements of residual ridge width using Edge Ridge Mapping Caliper. Preoperative orthopatomnograms were used to evaluate Bone height and shape of the edentulous area of the ridge. Fabrications of SGT was done through different steps as following; fabrication of radiopaque template by duplication of the acrylic denture using X-resin material, then all patients were scanned preoperatively using scanora CBCT machine while wearing the RO templates while biting on cotton pellets to ensure maximum compression of soft tissue mucosa, then Segmentation, threshold-processing of CBCT data, virtual implant placement and design of the SGT were done using 2Mimics innovation suite 15.03 program, then after finishing the virtual planning the stent was exported as (STL) file format, for rapid prototyping process by fused deposition modeling technique using MOJO desktop machine. Implant placement was performed under local anesthesia, in Minor Surgical clinic; SGT was placed with cotton pellets on the occlusal surface and patient was asked to bite against the opposing teeth or denture, then The SGT was secured in place using mono-cortical screws then Custom made Metal Sleeves were placed in their fitting hubs on the Surgical Guide Template, and Full sequence drillings preformed using custom made drill guide keys until the proper implant diameter was reached, After the drilling process was finished, the fixing screws were unscrewed and the SGT was removed, then the cover screws were placed

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