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Clinical Reference Tools

Torque Specs & Anesthetic Calculator

Free, chair-side reference tools for everyday clinical decisions. Implant system torque values for the major brands, plus a weight-based local anesthetic dosage calculator.

Torque SpecificationsAnesthetic Calculator

Reference tools only — always verify with the manufacturer’s current IFU and apply clinical judgment.

Implant System Torque Specifications

OEM-recommended torque values for major implant systems. Always verify with the manufacturer’s current IFU.

Important: These are reference values. Always follow current manufacturer guidelines and use calibrated torque drivers.
BioHorizons
Internal Hex
Platform Sizes
3.0mm, 3.8mm, 4.5mm, 5.7mm
Connection Type
Internal Hex
Abutment Screw Torque
35 Ncm
Standard & ProActive
Prosthetic Screw Torque
15–20 Ncm
Crown screw
Laser-Lok surface. Use BioHorizons torque driver.
Neodent
GM / Helix / Titamax
Platform Sizes
3.3mm, 3.5mm, 4.0mm, 4.3mm, 5.0mm
Connection Type
Morse Taper
Abutment Screw Torque
32 Ncm
GM / Helix systems
15 Ncm
Titamax Morse
Prosthetic Screw Torque
10 Ncm
Prosthetic screw
Friction-fit Morse taper. Hand tighten first.
Straumann
Bone / Tissue Level
Platform Sizes
3.3mm (NC), 4.1mm (RC), 4.8mm (WN)
Connection Type
Internal OctagonMorse Taper
Abutment Screw Torque
35 Ncm
Standard abutment
15 Ncm
Variobase
Prosthetic Screw Torque
15 Ncm
Gold screw
SLA / SLActive surface. Color-coded drivers.
Megagen
AnyOne / AnyRidge
Platform Sizes
3.5mm, 4.0mm, 4.5mm, 5.0mm, 5.5mm, 6.0mm
Connection Type
Internal Hex
Abutment Screw Torque
30 Ncm
Standard abutment
Prosthetic Screw Torque
20 Ncm
Prosthetic screw
Knife-thread design. S.L.A surface treatment.
Implant Direct
Legacy / InterActive
Platform Sizes
3.2mm, 3.7mm, 4.2mm, 4.7mm, 5.2mm
Connection Type
Internal HexTri-Lobe
Abutment Screw Torque
35 Ncm
Legacy series
25 Ncm
InterActive
Prosthetic Screw Torque
20 Ncm
Standard
RBM surface. Value-oriented systems.
Nobel Biocare
Active / Replace
Platform Sizes
3.0mm (NP), 3.5mm (RP/NP), 4.3mm (RP), 5.0mm (WP), 6.0mm (WP)
Connection Type
Tri-ChannelExternal Hex
Abutment Screw Torque
35 Ncm
Active / Replace
15 Ncm
Multi-unit
Prosthetic Screw Torque
15 Ncm
Gold screw
32 Ncm
Screw-retained
TiUnite surface. Platform-switched options.
Zimvie
TSV / Certain / Tapered Screw-Vent
Platform Sizes
3.5mm, 4.1mm, 4.7mm, 5.7mm
Connection Type
Internal HexExternal Hex
Abutment Screw Torque
35 Ncm
TSV / Certain
30 Ncm
Tapered Screw-Vent
Prosthetic Screw Torque
20 Ncm
Standard crown
30 Ncm
Screw-retained
MTX surface. Legacy Zimmer/Biomet systems.
Clinical Safety Tool

Local Anesthetic Calculator

Calculate maximum safe dosages based on patient weight and anesthetic type. Always apply clinical judgment and follow manufacturer guidelines.

Pounds (lbs)
=
Kilograms (kg)
Select Anesthetic

Lidocaine 2% with Epinephrine (1:100,000)

Maximum Dose
—
mg
Maximum Carpules
—
1.8 mL carpules
Total Volume
—
mL
Dosage: 7 mg/kg with epinephrine (manufacturer ceiling 500 mg). Each 1.8 mL carpule contains 36 mg lidocaine.

Important Clinical Considerations

  • These calculations provide maximum doses. Consider patient health status, procedure complexity, and duration.
  • Reduce doses for pediatric, elderly, or medically compromised patients, and when combining anesthetics.
  • Always aspirate before injection. Monitor for signs of toxicity: CNS excitation, seizures, cardiovascular depression.
  • This tool is for reference only. Exercise clinical judgment and follow manufacturer IFU.

Quick Reference: Anesthetic Properties

AnestheticConcentrationMax Dosemg / Carpule
Lidocaine2% with Epi7 mg/kg (max 500 mg)36 mg
Articaine4% with Epi7 mg/kg (max 500 mg)72 mg
Bupivacaine0.5% with Epi2 mg/kg (max 90 mg)9 mg
Mepivacaine3% Plain6.6 mg/kg (max 400 mg)54 mg