Skip to content
NiTi Alloy

MaxWire

MaxWire is FKG Dentaire's proprietary shape-memory alloy used in the XP-endo family. The unique B-phase (beta titanium) transformation behavior gives MaxWire a superelastic martensitic state at room temperature (15–20°C) and an austenitic state at body temperature (37°C). In practice, the XP-endo Shaper has an ISO 30/01 shape at room temperature and expands to a large working shape in the canal at body temperature, contacting canal walls without transported forces. This adaptive expansion into canal irregularities—fins, lateral canals, oval cross-sections—provides three-dimensional shaping that conventional fixed-taper files cannot achieve.

Metallurgical Properties

Af Temperature~35–40°C (B-phase transform)
Phase at 37°CAustenite (expanded working shape)
FlexibilityExtreme (expands to fill canal)
Cyclic FatigueModerate (single-use recommended)

Systems Using MaxWire

XP-endo Shaper

FKG Dentaire

Rotary
MaxWire1% (expands to at least 4%)2 files

Adaptive Core

XP-endo Finisher

FKG Dentaire

Rotary
MaxWire0% (zero taper)3 files

3D Canal Cleaning

XP-endo Retreatment

FKG Dentaire

Rotary
MaxWirevariable3 files

Adaptive Retreatment Sequence

XP-endo Rise

FKG Dentaire

Rotary
MaxWire4%2 files

2-in-1 Agile Spirit

Back to all systems