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ePaper created 2017-01-25, 09:48:20 | version 1.38.0
1_2017 18 study and the virtual implant planning according to previously described procedures (Fig. 3).21 In order to predictably obtain a surgical template with the same fitting dimensions as the original- ly scanned radiographic guide, the NobelGuide calibration procedure was performed for each patient according to the manufacturer’s instruc- tions, using a specific calibration object. Finally, the two data sets were converted with the No- belGuide software to preview the patient’s anat- omy and to plan treatment (Figs. 4a & b). Once planning had been completed, the surgical tem- plate was ordered. _Surgical and prosthetic protocols Antimicrobial prophylaxis with amoxicillin 1 g (Zimox, Pfizer, Rome, Italy) or clindamycin 600 mg, if allergic to penicillin, was administered b.i.d. for six days, starting 2 h before surgery. Pri- or to the start of surgery, patients rinsed with a 0.2% chlorhexidine mouthwash for 1 min. Oral premedication with flurazepam monohydrochlo- ride 15 mg (Flunox, Teofarma, Pavia, Italy), oc- tatropine methyl bromide 40 mg and diazepam 5 mg (Valpinax, Crinos, Milan, Italy) was given prior to surgery. Local anesthesia was induced Figs. 2a & b_Initial radiographic situation of a female patient with hopeless teeth in the maxilla. expert article _ chirurgia guidata Fig. 2a Fig. 2b