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2) Drills used for Type IVIn placing <strong>implant</strong>s, following using the above-mentioned basicdrills, the holes are prepared with <strong>implant</strong> drills, bore twist drills35-42, and taper twist drills (for more detailed drilling sequence, seethe attached sheet, “Drilling Progression”).Implant drills of φ 2.8 and φ 3.2 are used for all the sizes ofφ 3.3, φ 3.8, and φ 4.7. The size of the bore twist drill 35-42 isbasically used in bone preparation only for <strong>implant</strong>s of φ 4.7. Specialtaper twist drills are used to prepare the <strong>implant</strong> socket according tothe intraosseous length of 8mm, 10mm, or 12/14mm.Implant drillsThese are formation drills. Drilling should be carefully performedalong the hole without excessive forces.16mm14mm12mm10mm8mmDiameterStainless steel (TiN coating)ø 2.8 ø 3.2S L S LChapter 6 Surgical formS: Total length; 32mmL: Total length; 40mmSURGICAL MANUAL FOR PLATON IMPLANT SYSTEM18