T6 Torq surgical manual

Implant sizes, drill sequences for each diameter and bone type, instruments and tightening values for placing T6 Torq implants.

PDF, 258 MB, on the manufacturer’s website. The manual is the authoritative version: check it before clinical use.

NucleOSS T6 Torq drills with their yellow, green and magenta diameter bands
Document
SM.02 surgical manual
Edition
Revision 00, June 2026
Length
48 pages
Language
English

About the manual and the implant

These are the manufacturer’s recommended instructions for the surgical use of the NucleOSS Dental Implant System. Treatment and surgical planning should be based on clinical data and the clinician’s evaluation of the case.

  • Connection: hexagonal internal connection; superstructures can be placed in 6 different indexes with 60° rotation.
  • Abutment interface: a 20° angled contact zone.
  • Thread: a double thread design.

Diameters, lengths and cover screws

T6 TorQ implant product codes by diameter and length
LengthØ 3.5Ø 4.0Ø 4.5Ø 5.0Ø 6.0
6.5 mm—TRQ 40065TRQ 45065TRQ 50065TRQ 60065
8 mmTRQ 3508TRQ 4008TRQ 4508TRQ 5008TRQ 6008
10 mmTRQ 3510TRQ 4010TRQ 4510TRQ 5010TRQ 6010
12 mmTRQ 3512TRQ 4012TRQ 4512TRQ 5012TRQ 6012
14 mmTRQ 3514TRQ 4014TRQ 4514TRQ 5014—
17 mmTRQ 3517TRQ 4017TRQ 4517TRQ 5017—
Cover screwT6 32150T6 32158T6 32157T6 32151T6 32152

The figure shows the recommended areas of use for each diameter. The clinician should evaluate the patient, the case and the intended final restoration before surgery; use outside the specified areas is at the clinician’s discretion and responsibility.

Recommended areas of use by implant diameter (colour-coded by tooth position)

Implant package and transfer

T6 TorQ implants are supplied in a Tyvek sterile, leak-proof tube that includes the cover screw. The tube carries a diameter and length label and holds a lockable sterile hanger cap, the cover screw, the implant and a carrier hanger.

The product label shows the catalogue number (REF), label revision, lot number, implant diameter and length, the CE mark with the certification body’s number, the UDI, model, expiry date and the authorised representative.

  1. Remove the tube cover and place the carrier on a sterile drape.
  2. Seat the implant insertion tool precisely in the internal hex of the implant to transfer it from the plastic carrier to the mouth.
  3. To transfer the cover screw from the tube, insert the hex driver fully into the cover screw and pull it straight back along the same axis.

Caution. Once the carrier cover is opened, do not tilt the carrier more than 60 degrees, or the implant may fall out.

Before surgery

  • Evaluate the patient with clinical and oral radiographic tests. Examine the mucous membrane, jaw morphology, dental history, prosthetic history and oral dysfunctional signs; use radiographic analysis for bone topography.
  • If the patient is suitable, examine the treatment area and the opposing area in more detail. Treat any pathological condition in the jaw before the implant operation.
  • Plan the intended final prosthetic treatment first, then decide the type and number of implants. Articulator-mounted models and wax modelling of the edentulous area support planning.
  • Consider primary stability, single- or two-stage surgery, immediate placement after extraction and the expected recovery time before loading.
  • Based on mechanical considerations, the largest diameter implant possible is recommended, especially in posterior areas where loading forces are higher.
  • Explain the examination results, treatment method, expected result, required care and possible risks to the patient before treatment.
Bone classification used in the drilling protocol
ClassDescriptionTypical regions
D1Dense corticalAnterior mandible
D2Porous cortical and thick trabecularAnterior mandible, posterior mandible, anterior maxilla
D3Porous cortical and (thin) tight trabecularAnterior maxilla, posterior mandible, posterior maxilla
D4Tight trabecularPosterior maxilla
Bone classes D1 to D4

Drilling protocol

Operate the drills with coolant at a maximum of 800 rpm.

All drills are designed for use with a micromotor and are colour-coded by diameter.

Preparing the implant socket

  1. Mark the position and drill axis with the point drill.
  2. Continue with the pilot drill for the implant length. Pilot drills have stoppers for each implant size, which keeps the following drills from going deeper.
  3. Check position and axis, then enlarge the slot gradually through the previous diameter drills until the final drill for the selected implant reaches its stopper.
  4. In D1/D2 bone, enlarge the slot with the hard bone drill after the standard final drill.
  5. Finish with the countersink drill to prevent jamming in the neck area.

Caution. The hard bone drill expands the slot after the standard final drill. Using it as a final drill straight after the previous diameter drill may damage the bone and the drill.

The socket opened by the drill is 0.7 mm longer than the implant length, to increase healthy bone formation in the neck area; for T6 standard short (L 6.5 mm) implants only, it is 0.5 mm longer. Bone level should be considered in surgical planning and practice.

Implant 0.7 mm below bone level

Drill sequence by implant diameter (8 to 17 mm)

Find your drill sequence

Choose the implant and the bone type.

Implant diameter
Implant length
Bone type

T6 Torq Ø 4.0 × 10 mm in D2, D3 or D4 bone: 5 drills, then the implant.

  1. 1 Point drill T0 25024
  2. 2 Ø 3.0 pilot drill T0 25044
  3. 3 Ø 3.5 final drill TRQ 25146
  4. 4 Ø 4.0 final drill TRQ 25088
  5. 5 Ø 4.0 countersink TRQ 25157
  6. Place the implant TRQ 4010 Cover screw T6 32158

With coolant, at a maximum of 800 rpm. 6.5 mm and 17 mm implants follow their own protocols, below.

The manual’s drill protocol figure for Ø 4.0 mm implants
Drill sequences for each diameter
ImplantD2/D3/D4 boneD1/D2 hard bone
Ø 3.5Point drill → Ø 3.0 pilot → Ø 3.5 final → Ø 3.5 countersinkPoint drill → Ø 3.0 pilot → Ø 3.5 final → Ø 3.5 hard bone → Ø 3.5 countersink
Ø 4.0Point drill → Ø 3.0 pilot → Ø 3.5 final → Ø 4.0 final → Ø 4.0 countersinkPoint drill → Ø 3.0 pilot → Ø 3.5 final → Ø 4.0 final → Ø 4.0 hard bone → Ø 4.0 countersink
Ø 4.5Point drill → Ø 3.0 pilot → Ø 3.5 final → Ø 4.0 final → Ø 4.5 final → Ø 4.5 countersinkPoint drill → Ø 3.0 pilot → Ø 3.5 final → Ø 4.0 final → Ø 4.5 final → Ø 4.5 hard bone → Ø 4.5 countersink
Ø 5.0Point drill → Ø 3.0 pilot → Ø 3.5 final → Ø 4.0 final → Ø 4.5 final → Ø 5.0 final → Ø 5.0 countersinkPoint drill → Ø 3.0 pilot → Ø 3.5 final → Ø 4.0 final → Ø 4.5 final → Ø 5.0 final → Ø 5.0 hard bone → Ø 5.0 countersink
Ø 6.0Point drill → Ø 3.0 pilot → Ø 3.5 final → Ø 4.0 final → Ø 4.5 final → Ø 5.0 final → Ø 6.0 final → Ø 6.0 countersinkPoint drill → Ø 3.0 pilot → Ø 3.5 final → Ø 4.0 final → Ø 4.5 final → Ø 5.0 final → Ø 6.0 final → Ø 6.0 hard bone → Ø 6.0 countersink
  • The point drill is the first drill that must be used in every protocol.
  • For soft bone types, only the pilot and final drill lengths differ for 8, 10, 12, 14 and 17 mm implants.
  • For 17 mm implants, the hard bone drill is the final drill for all bone types (D1/D2/D3/D4).
  • Place the implant with the transfer and tightening parts; each sequence ends with the cover screw for that diameter.
  • The protocol is different for L 6.5 mm implants (see below).

6.5 mm implants

  1. Mark the position and drill axis with the point drill (the caution on this page gives a slot 14 mm long, Ø 2.10 mm).
  2. Use the pilot drill, then enlarge the slot gradually with the diameter drills until the 6.5 mm final drill for the selected implant: Ø 4.0, Ø 4.5, Ø 5.0 or Ø 6.0.

The 6.5 mm final drills are short implant drills included in the T6 TorQ surgical set. They have stoppers and there is a separate drill for each diameter. The figure shows the same sequence for D1, D2, D3 and D4 bone, with the top of the implant 0.7 mm below bone level. Operate the drills with coolant at a maximum of 800 rpm.

Pilot drills

The pilot drill is the first osteotomy drill that must be used after the initial drills in every protocol. It is in both the T6 Standard and T6 TorQ surgical kits.

Pilot drills
Implant lengthReferenceLength markingDiameter
6.5 mmT0 25039L: 6.5+1 mmØ 2.45 mm
8 mmT0 25043L: 8.0+1 mmØ 2.95 mm
10 mmT0 25044L: 10.0+1 mmØ 2.95 mm
12 mmT0 25045L: 12.0+1 mmØ 3.0 mm
14 mmT0 25046L: 14.0+1 mmØ 3.0 mm
17 mmT0 25020L: 17.0+1 mmØ 3.0 mm
Pilot drills T0 25039 to T0 25020

Final drills

Final drills have stoppers and come in five lengths: 6.5, 8, 10, 12 and 14 mm (Ø 6.0: up to 12 mm). All drills are designed 1 mm longer than the implant length.

For 17 mm implants, the hard bone drill is used.

Final drill references and drill lengths
Implant lengthØ 3.5Ø 4.0Ø 4.5Ø 5.0Ø 6.0Drill length
6.5 mmT6 25040TRQ 25047TRQ 25048TRQ 25049TRQ 25050L: 7.5
8 mmTRQ 25145TRQ 25087TRQ 25090TRQ 25093TRQ 25096L: 9.0
10 mmTRQ 25146TRQ 25088TRQ 25091TRQ 25094TRQ 25054L: 11.0
12 mmTRQ 25147TRQ 25051TRQ 25052TRQ 25053TRQ 25058L: 13.0
14 mmTRQ 25148TRQ 25089TRQ 25092TRQ 25095—L: 15.0

Hard bone drills and countersinks

  • Hard bone drills are used after the final drills in D1/D2 bone. They widen the cavity by 0.2 mm so the implant advances more easily and with less stress.
  • Hard bone drills are also used to place 17 mm implants. They are approximately 1 mm longer than the implant length; the figure marks L 9, 11, 13, 15 and 18 mm.
  • Even after a hard bone drill in D1/D2 bone, a countersink should definitely be used afterwards; otherwise resorption may occur due to stress.
  • The countersink prevents the implant from sticking in the neck area and provides passive seating. The kit has countersinks for the full range of T6 implant diameters.
Hard bone drills and countersinks
ImplantHard bone drillCountersinkCountersink dimension marked
Ø 3.5TRQ 25149TRQ 251505.91 mm
Ø 4.0TRQ 25059TRQ 251575.91 mm
Ø 4.5TRQ 25060TRQ 251585.71 mm
Ø 5.0TRQ 25061TRQ 251595.70 mm
Ø 6.0TRQ 25062TRQ 251605.70 mm

Drill and implant dimensions

Each final or hard bone drill is compared with the implant below. Only the drill body diameter is labelled; the other columns describe where each value appears.

Implants other than 6.5 mm: values marked in the drill compatibility figures
ImplantBoneDrill shownDrill body diameterInner diameter marked on implantOffset markedDiameter marked under drill
Ø 3.5D2/D3/D4T6 25148Ø 2.70 mmØ 2.70 mm0 mmØ 2.8 mm
Ø 3.5D1TRQ 25149Ø 3.30 mmØ 2.70 mm0.3 mmØ 3.3 mm
Ø 4.0D2/D3/D4TRQ 25089Ø 3.00 mmØ 2.80 mm0.1 mmØ 3.0 mm
Ø 4.0D1TRQ 25059Ø 3.6 mmØ 2.80 mm0.4 mmØ 3.6 mm
Ø 4.5D2/D3/D4T6 25091Ø 3.7 mmØ 3.3 mm0.2 mmØ 3.7 mm
Ø 4.5D1TRQ 25060Ø 4.0 mmØ 3.3 mm0.35 mmØ 4.0 mm
Ø 5.0D2/D3/D4T6 25094Ø 4.2 mmØ 3.8 mm0.2 mmØ 4.2 mm
Ø 5.0D1TRQ 25061Ø 4.5 mmØ 3.8 mm0.35 mmØ 4.5 mm
Ø 6.0D2/D3/D4T6 25054Ø 5.2 mmØ 4.7 mm0.25 mmØ 5.2 mm
Ø 6.0D1TRQ 25062Ø 5.6 mmØ 4.7 mm0.45 mmØ 5.6 mm
6.5 mm implants: values marked in the drill compatibility figures (all bone types)
ImplantDrill shownDrill body diameterUpper inner diameter on implantOffset markedLower diameter on implantDrill tip lengthTip aTip b
Ø 4.0T6 25047Ø 3.60 mmØ 3.35 mm0.13 mmØ 3.40 mmL: 7.6 mmØ 2.40 mmØ 3.60 mm
Ø 4.5T6 25048Ø 4.10 mmØ 3.35 mm0.25 mmØ 3.20 mmL: 7.5 mmØ 3.20 mmØ 4.10 mm
Ø 5.0T6 25049Ø 4.90 mmØ 4.30 mm0.2 mmØ 3.40 mmL: 7.6 mmØ 3.40 mmØ 4.90 mm
Ø 6.0T6 25050Ø 5.70 mmØ 4.90 mm0.35 mmØ 4.60 mmL: 7.60 mmØ 3.40 mmØ 4.90 mm

Implant transfer and insertion

T6 implant transfer and tightening parts
ReferenceUsed withLength
T6 25213MicromotorLong
T6 25214MicromotorShort
T6 25215RatchetLong
T6 25216RatchetShort
Implant transfer and tightening parts, correct seating and drive options
  1. Check that the PEEK ring on the tip of the transfer part is present before picking up the implant.
  2. Seat the transfer part in the implant in the exact, correct position. Otherwise the implant may fall or the implant hex may be damaged.
  3. Turn the dots on the transfer part towards the vestibule, so the flat of the implant hex faces the vestibule. With angled abutments, the hex flat faces the angle axis.
  4. Place the implant in the prepared socket as soon as possible, without touching it.
  5. Insert clockwise with a micromotor at a maximum of 15 rpm, or with a manual hex driver, until the top of the implant is 0.7 mm below bone level.
  6. Keep pressure on the transfer part during insertion so it does not come out of the hex socket.

Caution. If the dots are ignored, the hex flat will face mesially or distally and a standard abutment will be positioned incorrectly.

For insertion torque, see the implant instructions for use.

Surgical kit and instruments

  • Kit reference: CRH-115 T6 Torq Surgical Kit (the T6 Standard Surgical Kit is CRH-109).
  • Two parts: a movable middle shelf for drills and tightening parts, and a lower section for the torque ratchet and hand tools. The bottom holds the depth gauge (T0 25312), torque ratchet (T0 25900) and screwdriver (T0 2022).
  • The kit can be autoclaved as one piece. The plastic is stated to withstand more than 1000 steam sterilisation cycles. The cover opens to 90° or 210° and locks the contents when closed.

Point, round and Lindemann drills

Initial drills and drill extender
InstrumentReferenceDimensions markedUse
Point drillT0 2502430 mm, 9 mm, Ø 2.40 mmMarks the implant position and lets the next drill advance; first drill after any round-drill correction
Round drillT0 0103Ø 3.10 mmCorrects a damaged or irregular bone surface at the start of the osteotomy
Lindemann drillT0 25163Ø 2.20 mm, Ø 1.90 mm, 12.60 mmAfter point drilling, to bring the implant site to the correct angle; side-cutting
Drill extenderT0 2012-1Adds approximately 16 mmExtends drill length where the drill is too short or the micromotor cannot reach

Caution. The Lindemann drill is recommended at 1200–1500 rpm, and cooling is absolutely necessary.

Caution. Drills must be correctly attached to the micromotor and should not be operated until they are properly seated.

Parallel and angled pins

Parallel and angled pins
PinReferenceDimensionsUse
Parallel pin, lower (Ø 2.0 mm) endT0 25320Ø 2.0 mm, 8 mmCheck after the point drill
Parallel pin, Ø 2.5 mm endT0 25320Ø 2.5 mm, 9 mmCheck after the pilot drill
17° angled pinT0 25305Ø 2.3 mm, L: 11.60 mmCheck the angle for multi-unit abutments, after the pilot drill
30° angled pinT0 25306Ø 2.3 mm, L: 11.60 mmCheck the angle for multi-unit abutments, after the pilot drill

Parallel pins check parallelism with adjacent teeth for single implants and between cavities for multiple implants. T6 surgical sets have four parallel pins.

  1. Open a 90° vertical reference slot with the point and pilot (Ø 3.0 mm) drills near the planned implant site.
  2. Place the 17° or 30° pin in the reference slot.
  3. Using the pin as a guide, open the implant slot with the point and pilot (Ø 3.0 mm) drills, follow the drill protocol and place the implant.
  4. Place the angled multi-unit abutment with its platform parallel to the bone surface and fix it with the M1.6 multi-unit connection screw (16008).
Angled pins T0 25305 (17°) and T0 25306 (30°) and their use

Bone profiler

Uneven bone around the implant neck can stop the abutment seating properly, which may cause the abutment or connecting screw to break. The bone profiler is used before the abutment is placed: T0 25032 (Ø 4.90 mm) and T0 25064 (Ø 6.40 mm).

  1. Place the bone profiler on the guide pin before starting the micromotor, and clean the uneven bone around the implant neck.
  2. Cool the bone surface with water while the drill runs.
  3. Check the abutment on the implant.

Hex drivers, tightening parts and adapter

Hex drivers, tightening parts and adapter
PartReferenceUse
Manual hex driverT0 25251Carrying screws and healing caps, light tightening; up to 10 Ncm, never final torque
Micromotor hex driverT0 2009Carrying screws and healing caps, light tightening; up to 10 Ncm, never final torque
Short hex driver (ratchet), L: 12 mmT0 2024Final torque with the NucleOSS ratchet only; no retention, not for carrying
Long hex driver (ratchet), L: 15.5 mmT0 2025Final torque with the NucleOSS ratchet only; no retention, not for carrying
Ball abutment tightening part (O-ring)T0 25205Ball abutments; ratchet or screwdriver
Multi-unit abutment tightening partT0 25206Multi-unit straight abutments; ratchet or screwdriver
AdapterT0 25212Lets the multi-unit and O-ring tightening parts be used with a micromotor
Slimex carrying part, micromotorT0 2008Slimex implants
Slimex carrying part, ratchet, longT0 2005-1Slimex implants
Slimex carrying part, ratchet, shortT0 2006-1Slimex implants

Caution. Never apply final torque with the manual or micromotor hex drivers: the screw’s hex slot or the driver tip may be damaged.

Caution. Torque the multi-unit straight abutment to a maximum of 30 Ncm; a lower or higher torque may loosen or break the abutment.

Caution. Torque the multi-unit angled abutment connection screw and the ball abutment to a maximum of 30 Ncm with the NucleOSS ratchet.

A PEEK ring on the tip of the Slimex insertion drivers stops the implant falling during transfer; check that it is in place and undamaged before use.

Depth gauge, screwdriver and torque ratchet

Depth gauge, screwdriver and torque ratchet
InstrumentReferenceSpecification
Depth gauge, thin endT0 25312Ø 1.8 mm; socket depth marks 6.5, 8.0, 10.0, 12.0, 14.0 and 17.0 mm, used after the pilot drills
Depth gauge, thick endT0 25312Gingival height marks 1.0 to 6.0 mm, for choosing the abutment
ScrewdriverT0 2022L: 13.80 cm, Ø 7.8 mm
Torque ratchetT0 259000 to 70 Ncm; about 80 Ncm with the needle at the top
  • The screwdriver is an alternative to the ratchet for implant carrying parts, hex drivers and the screw-retained and ball abutment tightening parts, and is convenient in the anterior maxilla. Keep it aligned with the socket axis, or the implant may be damaged or the transfer part may break.
  • Torque setting: hold the ratchet by pressing the wheel, then pull the torque arm lightly in the direction of the arrow to the required value. Do not turn the arm beyond the values on the ratchet, or the torque will be incorrect.
  • Without torque: hold the torque arm and needle together and press the wheel.
  • The direction arrow points up for tightening and down for loosening and removal.

Tightening torque values

Both torque tables apply to the T0 25900 torque ratchet.

Healing, cemented and CAD/CAM parts
ProductTightening partsTorque
Implant cover screws and sinus capsT0 2024 short or T0 2025 long (ratchet); T0 25251 manual hex driverManual or ratchet (10 Ncm with a ratchet)
Gingiva formersT0 2024 short or T0 2025 long (ratchet); T0 25251 manual hex driverManual or ratchet (10 Ncm with a ratchet)
Connection screws of PEEK partsT0 2024 short or T0 2025 long (ratchet); T0 25251 manual hex driverManual or ratchet (10 Ncm with a ratchet)
All cemented abutment screwsT0 2024 short or T0 2025 long (ratchet); T0 25251 manual hex driverMax. 30 Ncm
Cast abutment screwsT0 2024 short or T0 2025 long (ratchet); T0 25251 manual hex driverMax. 30 Ncm
CAD/CAM Ti-Base abutment screwsT0 2024 short or T0 2025 long (ratchet); T0 25251 manual hex driverMax. 30 Ncm
Overdenture, multi-unit and occlusal screws
ProductTightening partsTorque
Ball abutmentT0 25205 ball abutment tightening partMax. 30 Ncm
Equator abutment774CHE Equator abutment tightening partMax. 30 Ncm
Multi-unit straight abutmentsT0 25206 multi-unit abutment tightening partMax. 30 Ncm
Multi-unit angled (17° / 30°) abutment screwsT0 2024 short or T0 2025 long (ratchet); T0 25251 manual hex driverMax. 30 Ncm
Parts installed on the multi-unitT0 2024 short or T0 2025 long (ratchet); T0 25251 manual hex driverMax. 10 Ncm
Occlusal screws attached to the prosthesis (two set-ups shown)T0 2024 short or T0 2025 long (ratchet); T0 25251 manual hex driverMax. 20 Ncm

Healing, loading and the cover screw

  • The recommended healing period before loading is 12 weeks, unless the clinician takes a different medical decision.
  • The clinician should set the loading time for each implant after examining bone quality, quantity, density, primary stability, restoration type and loading conditions.
  • Each implant tube includes its cover screw.
  • The cover screw references by diameter are in the dimensions table above.
  • Pick the cover screw out of the tube by fully inserting the hex driver and pulling straight back along the same axis.

Cleaning, sterilisation and storage of the instruments

  • Drill cutting performance falls after a number of uses; the maximum for NucleOSS drills is 15 uses.
  • Do not let blood, bone or tissue residue dry on an instrument; clean immediately after surgery with soft brushes only, removing detachable parts where needed.
  • Never disinfect, clean (including ultrasonic) or sterilise instruments of different materials together. Rinse cleaning agents off thoroughly with water and never store instruments wet.
  • Non-sterile surgical instruments must not be used. Sterilise the cleaned, dried instruments in their slots in the kit, in an autoclave bag; do not stack boxes during sterilisation.
  • For cleaning and disinfection details, see the D006 NucleOSS surgical instruments manual.
Sterilisation cycle recommended by the manufacturer
ParameterValue
MethodMoist heat sterilisation according to ISO 17665:2024
CyclePre-vacuum
Temperature134°C / 273.2°F
Exposure time3 minutes
Pressure2.2 bar
Pre-vacuum3 times < 60 mbar
Minimum drying time60 minutes in the enclosed chamber

After sterilisation, store the instruments in a dry, dark place such as a closed cupboard or drawer.

On this page

  1. About the manual and the implant
  2. Diameters, lengths and cover screws
  3. Implant package and transfer
  4. Before surgery
  5. Drilling protocol
  6. Implant transfer and insertion
  7. Surgical kit and instruments
  8. Tightening torque values
  9. Healing, loading and the cover screw
  10. Cleaning, sterilisation and storage of the instruments

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