Keystone (Lifecore) DRILLS

Genesis

Fig. 1

Tapered wall Genesis implant drills are externally cooled, latch type drills and may be used up to twenty times. All drills, except pilot drills are color coded according to to the planned final implant body diameter (green 3.7mm, blue 4.5mm, purple 5.5mm, gray 6.5mm) and depth markings (Fig.1, 8.5, 10, 11.5, 13, 16mm) are laser etched on the cutting portion of the drills. Five different, task specific drill designs comprise the Genesis tapered wall implant drill protocol. Following the recommended drill protocol and depth markings on the drills will result in a implant position flush with the crest of the bone. The V-Factor of the spiral, intermediate and final drills is up to 1.53mm, creating a osteotomy depth up to 1.53mm deeper than indicated by the depth markings on the drills.

Fig. 2

1. Pilot/starter drills are 2mm in diameter.

2. Intermediate twist drills (Fig.2) are available in diameters of 2.7 (green), 3.2 (blue), 4.2 (fuchsia) and 5.2mm (no color marking). Used in sequence, depending on the final implant diameter. The tip of each intermediate drill is stepped to facilitate a effortless transition from one intermediate drill diameter to the next intermediate drill diameter.

Fig. 3

3. Implant diameter specific countersink drills (Fig.3) shape the crestal portion of the osteotomy site and are required in D1 and D2 bone. Utilizing countersink drills in D3 and D4 bone is left to the surgeons discretion but not required or recommended.

Fig. 4

4. Implant diameter explicit final drills (Fig.4) shape the osteotomy site to the appropriate tapered wall dimension. These drills should not be used in a pumping motion because this might create a unfavorable osteotomy dimension. Only move the drill in and out of the osteotomy once.

Fig. 5

5. Tap drills (Fig.5) precut a thread pattern in to the inside walls of the osteotomy. D1 and D2 type bone require tapping with the exception of 3.8mm diameter implants with a length of 8.5 and 10mm. 4.5mm diameter implants with a length of 8.5mm are not tapped either in D1 or D2 type bone. Tapping in type D3 and D4 bone is not recommendend for any diameter implant.
Drill sequence

Fig. 6

Parallel wall Genesis implant drills (Fig.6) and sequence are the same as tapered wall Genesis implants with the exception of final and tap drills which create parallel wall characteristic osteotomy dimensions. These drills should not be used in a pumping motion because this might create a unfavorable osteotomy dimension. Only move the drill in and out of the osteotomy once.
Drill sequence

Prima™

Fig. 7

Tapered wall PrimaConnex® and PrimaSolo® implant drills are latch type drills and may be used up to twenty times. All drills, except pilot drills are color coded according to the implant diameter and depth markings are laser etched on the cutting portion of the drills. Three different, task specific drill designs comprise the PrimaConnex® tapered wall implant drill protocol. Following the recommended drill protocol and depth markings on the drills will result in a implant position flush with the crest of the bone.

1. Externally cooled, pilot spiral drills (Fig.10) are inscribed with numbers on the shank to indicate diameter and length. Available in two (1.5, 1.8mm) diameters. Both diameter drills are produced in lengths of 15mm while 1.8mm drills are offered in an additional length of 11.5mm. 15mm drills (Fig.7) have depth indicator markings at 8, 10, 11.5, 13 and 15mm.

Fig. 8

2. Internally cooled tapered drills (Fig.8) have a four fluted design and are inscribed with numbers on the shank to indicate diameter and length in addition to the implant diameter specific color band (yellow 3.0mm, green 3.5mm SD, blue 4.1mm RD, fuchsia 5.0mm WD). 3.0 diameter drills are available in two (13, 15mm) lengths while all other diameter drills are produced in four lengths of 10, 11.5, 13 and 15mm. Keystone recommends a speed of 800 rpm and no pumping motion during the drill procedure for tapered drills. The V-Factor of the spiral and tapered drills is up to 1.27mm, creating a osteotomy depth up to 1.27mm deeper than indicated by the depth markings on the drills.

Fig. 9

3. Internally cooled tap drills (Fig.9) are final osteotomy diameter and length specific. 3.0 diameter tap drills are available in one length of 15mm while all others are offered in two (11.5, 15mm) lengths each. tap drills are recommended in D1 bone and to be utilized at the clinicians discretion in all other bone types.
Drill sequence

Fig. 10

Parallel wall PrimaConnex® implant drills are latch type drills and may be used up to twenty times. All drills, except pilot drills are color coded according to the implant diameter and depth markings are laser etched on the cutting portion of the drills. Five different, task specific drill designs comprise the PrimaConnex® parallel wall implant drill protocol. Following the recommended drill protocol and depth markings on the drills will result in a implant position flush with the crest of the bone.

1. Externally cooled, pilot spiral drills (Fig.10) are inscribed with numbers on the shank to indicate diameter and length. Available in two (1.5, 1.8mm) diameters. Both diameter drills are produced in lengths of 15mm while 1.8mm drills are offered in an additional length of 11.5mm. 15mm drills (Fig.7) have depth indicator markings at 8, 10, 11.5, 13 and 15mm

Fig. 11

2. Internally cooled step drills Fig.11) are a intermediate step in the drill protocol, providing a transition between twist drill diameters. Three internally cooled drills step from 1.8 to 2.8mm, 2.8 to 3.3mm and 3.3 to 4.2mm

Fig. 12

3. Internally cooled twist drills are color coded according to the implant platform diameter green (3.5 SD), blue (4.1 RD) and fuchsia (5.0 WD). Each drill is produced in two lengths of 11.5mm (Fig.12) and 15mm. The V-Factor of the spiral and tapered drills is up to 1.35mm, creating a osteotomy depth up to 1.35mm deeper than indicated by the depth markings on the drills.

Fig. 13

4. Three implant diameter specific, internally cooled countersink drills (Fig.13) may be utilized in osteotomy sites with a thick cortical plate.

Fig. 14

5. Internally cooled, color coded, implant diameter specific tap drills (Fig.14) are recommended in D1 bone and to be utilized at the clinicians discretion in all other bone types. SD (3.5mm) and RD (4.1mm) tap drills are offered in two lengths of 11.5 and 15mm while a WD tap drill is available in one length of 13mm only.
Drill sequence

All images courtesy of Keystone