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CAD/CAM - international magazine of digital dentistry

case report _ implant therapy I Fig. 3_Reference body and thermoplastic surgical guide. Fig. 4_Reference body and thermoplastic guide in-situ prior to CBCT scan. Fig. 5_CBCT with reference body and CEREC proposal overlay. Fig. 6_CEREC Guide in-situ. Fig. 7_AstraTech (DENTSPLY Implants) facilitate biopsy punch used through CEREC Guide. Fig. 8_Soft tissue removed. Fig. 9_Directional indicator to assess osteotomy position. Fig. 10_Implant placement. Fig. 11a_Placement of a 4 mm healing abutment at stage 1. Fig. 11b_Post-op RTG view. Fig. 12_Fixture level open-tray impression. Fig. 13_Standard abutment with 3 mm of occlusal clearance. Fig. 14_Soft tissue profile after two months healing. In this case report, I shall demonstrate a sur- gical guide manufactured in-house using the CEREC Bluecam (Sirona). These guides do not require any impressions to be sent to a third party and can be made rather cheaply in the surgery within around 30 minutes. The guide can then be used in conjunction with specific drill keys, which are compatible with the guided surgery drill sets from all leading implant man- ufacturers. In this particular case, Facilitate (Astra Tech/ DENTSPLY Implants) was used to place the im- plant. Once the implant was osseointegrated, the final restoration was fabricated chairside using the CEREC MC XL milling machine (Sirona) and an IPS e.max CAD block (Ivoclar Vivadent). _Case report A young female patient had lost tooth 36 a few years ago and wanted an implant solu- tion. Her medical history was clear and she had a mildly restored dentition with no current dental pathology. Her BPE scores were low, with excellent oral hygiene. The patient was scanned using the CEREC Bluecam and a proposal for the missing tooth was created. A collimated CBCT scan of the lower jaw was taken using GALILEOS (Sirona) with a CEREC Guide reference body set in thermoplas- tic over the edentulous area. The reference body is identified by the soft- ware and a virtual implant placement along with the CEREC crown proposal is imported into the software. This allows the clinician to place the implant virtually, with reference to the ideal final crown position. In this case, it was deemed that a screw-retained restoration would be de- sirable; hence, the screw-access hole was posi- tioned through the centre of the crown. Once the implant position had been decided, the information was ported to the CEREC soft- ware and using a CEREC Guide Bloc a drill body was milled by the CEREC MC XL milling machine. I 39CAD/CAM 1_2013 Fig. 14 Fig. 16 Fig. 11a Fig. 11b Fig. 13 Fig. 17 Fig. 19 Fig. 12 Fig. 15 Fig. 18