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cone beam international magazine of cone beam dentistry

case report _ CBCT and digital surface scanner I The surgical guide was repositioned and a 2.0 mm diameter guided key was placed into the master cylinder. A pilot guided drill of 21 mm in lengthand2.0mmindiameterwasutilisedtostart the osteotomy at 1,200 rpm through the guided key cylinder. The surgical guide system compen- sates 10 mm in actual drill depth so the final osteotomy in this situation was performed at 11 mm depth (Figs. 11a & b). The procedure was sequentially repeated with the 2.5 mm guided keyandtaperedguideddrillof21mminlengthand 2.5 mm in diameter, the 3.2 mm guided key and taperedguideddrillof21mminlengthand3.2mm in diameter, the 3.7 mm guided key and tapered guided drill of 21 mm in length and 3.7 mm in diameter, and finally the 4.1 mm guided key and taperedguideddrillof21mminlengthand4.1mm in diameter (Fig. 11c). The surgical guide was then removed to check the osteotomy site (Fig. 11d). The guide was then repositioned and the implant was mounted in the 4.6 mm guided implant driver (Fig. 11e). The implant was placed through the master cylinder at 15 rpm and 50 Ncm torque (Fig. 11f). Once the implant was at the final depth position (Fig. 12a), theguidedimplantdriverwasremovedandaheal- ing abutment (BioHorizons; D 4.5 mm × L 3 mm) was screwed into the implant (Fig. 12b). A small connective tissue graft taken from the soft tissue removed by the tissue punch was then placed in a buccal wedge to gain soft-tissue volume and thickness in the remaining keratinised tissue (Fig. 12c). No sutures were indicated. A post- operative radiograph was taken to evaluate the final implant position. _Conclusion The combination of digital surface scans and CBCT images for virtual planning for implant surgery can be used for safe and effective non- invasive computer-guided implant placement. Implant Studio is a user-friendly realisation of this innovative technology and can significantly reduce the preoperative preparation procedures and treatment times while maintaining surgical accuracy. In this specific clinical situation, the computer-guided surgical preparation and sur- gery took no longer than two days, improving the waiting times associated with conventional CBCT guided surgical systems. We invite anyone interested in this innova- tive technology to visit our clinic and specialist CAD/CAM training centre in Santiago in Chile, where participants will be involved in practical clinical cases, be given live surgery demonstra- tions, and attend lectures about guided surgery procedures and CAD/CAM surgical and restorative technologies._ Readers can find a video of the procedure at the following link: https://www.youtube.com/watch?v= 2gNwAtWE0U&feature=youtu.be Editorial note: A complete list of references is available fromthepublisher. I 29cone beam2_2014 AlejandroLanis,DDS,MS, receivedhisDDSdegreefrom theUniversityofValparaíso andperformedhisresidency programinOraland MaxillofacialImplantology attheUniversityofChile. TheInternationalTeamfor Implantology(ITI)selectedhimasanITIScholar fortheUniversityofMichiganintheUS.Heismember oftheAO,ConstituentMemberoftheInternational CollegeofProsthodontits,ITIMemberandFellowof theChileanSocietyofOralImplantology.Hepractices inSantiago,Chile,specificallydedicatedtoimplant dentistry,prosthodonticsandaestheticdentistry. Hecanbecontactedatalelanis@umich.edu. OrlandoÁlvarezdelCanto, DDS,MS,receivedhisDDS degreefromtheUniversityofChile andhisMSdegreeinImplantology andOralRehabilitationfromthe AndrésBelloUniversityinChile. Hehasadiplomatedegreein HealthInstitutionsManagement fromtheUniversityofChileandadiplomatedegree inExecutiveandMarketingManagementfrom thePontificalCatholicUniversityofChile.Heisa memberoftheChileanProsthodonticsSociety,Chilean SocietyofOralImplantology,ALAO,ITIandconstituent memberoftheInternationalCollegeofProsthodontists. HeisanAssociateProfessorofOralImplantology atUniversaddelDesarrollo,Chile.Hepractices inSantiagospecialisedinimplantdentistry, prosthodonticsandaestheticdentistry. Hecanbecontactedatdr.alvarez@oseintegration.cl. DrsAlejandroLanis&OrlandoÁlvarezdelCanto Office601 Av.PresidenteKennedy7100 7650618SantiagodeChile +56226559080 cone beam_about the authors