Clinical Tip
ProTaper Ultimate for a gold multi-file approach in complex anatomy. WaveOne Gold for reciprocating single-file efficiency in routine cases.
When to choose which
Choose ProTaper Ultimate when
- you want more of the canal wall touched: Ultimate to F2 left 17.1 % of mandibular molar walls unprepared against 22.5 % for WaveOne Gold Primary (PMID 41964818)
- torsional strength at the ISO test point matters more to you than bench fatigue life: Ultimate F2 broke at 1.45 Ncm against 1.10 Ncm for the Primary (PMID 41964818)
Choose WaveOne Gold when
- the canal is curved and bench fatigue life is the concern: the Primary reached 1,883.10 cycles at 35 °C against 726.70 for Ultimate F2 (PMID 41964818)
- you want one file per canal with shaping equal to Ultimate in curved mesiobuccal canals: transportation and centring did not differ at 3, 5 or 7 mm in 25 to 40 degree maxillary molar roots (PMID 41685849)
- you pair the file with sonic activation and debris extrusion worries you: the WaveOne Gold plus sonic combination extruded the least debris of nine combinations tested (PMID 41094147)
What the comparative evidence shows
3 comparative full-text studies read for this pair
Three comparative full texts were read for this pair: one micro-CT shaping study in maxillary molars, one debris-extrusion study and one combined bench and micro-CT series in mandibular molars. Ultimate is a multi-file rotary system with an off-centred parallelogram cross-section and file-specific heat treatments; WaveOne Gold Primary is a single reciprocating file with a parallelogram cross-section and a 7 % apical taper. Three further comparative papers, on pericervical dentin and smear layer, on severely curved canals and on rotary against manual use, are paywalled and were not read, so the read set is thinner than for the other ProTaper pairs.
On shaping, 42 mesiobuccal canals of maxillary molars with 25 to 40 degrees of curvature showed no difference in transportation or centring between WaveOne Gold, Ultimate and TruNatomy at 3, 5 or 7 mm, and no canal was displaced more than 0.2 mm (PMID 41685849). In 50 mandibular first molars, Ultimate to F2 and the Primary produced the same volume increase, but the Primary left more of the wall untouched (22.5 % against 17.1 %) and Ultimate showed the highest transportation of five systems at the 6 mm level of the mesial canals (PMID 41964818).
On mechanics, the same series found the Primary far ahead on cyclic fatigue at 35 °C in a 60-degree steel canal (1,883.10 cycles against 726.70), Ultimate F2 ahead on maximum torque (1.45 Ncm against 1.10 Ncm) and on angular deflection (398.87 degrees against 310.87), and Ultimate F2 the stiffest of the five files in a 60-degree bending test (PMID 41964818). The authors present these as whole-system contrasts and warn that taper, cross-section and kinematics are confounded.
On debris, 135 straight mandibular premolars prepared at 35 °C showed no difference in apical extrusion between Ultimate to F3, WaveOne Gold to Medium and a third rotary system, while passive ultrasonic activation extruded more than sonic or conventional irrigation whichever file was used; the WaveOne Gold plus sonic combination extruded the least (PMID 41094147).
Nothing in the read set compares the two files on postoperative pain, healing, dentinal defects or retreatment.
Head to head
01Cyclic fatigue (bench)726.70 cycles at 35 °C in a 60° canal
ProTaper Ultimate
726.70 cycles at 35 °C in a 60° canal
What the studies show
One static test at manufacturer settings, 25-tip files (PMID 41964818)
02Torsion and bendingHigher maximum torque (1.45 Ncm) and larger deflection; stiffest of five files in bending
ProTaper Ultimate
Higher maximum torque (1.45 Ncm) and larger deflection; stiffest of five files in bending
What the studies show
ISO-style torsion at 3 mm, bending to 60° (PMID 41964818)
03Transportation and centringNo difference from WaveOne Gold in maxillary MB canals; highest transportation of five at 6 mm in mandibular mesial canals
ProTaper Ultimate
No difference from WaveOne Gold in maxillary MB canals; highest transportation of five at 6 mm in mandibular mesial canals
What the studies show
Two micro-CT studies; no canal displaced over 0.2 mm in the maxillary study, while mean mid-root values in the mandibular study ran to 0.48 mm (PMID 41685849, PMID 41964818)
04Wall contact and debris17.1 % of walls unprepared; debris equal to WaveOne Gold
ProTaper Ultimate
17.1 % of walls unprepared; debris equal to WaveOne Gold
What the studies show
Molar micro-CT (PMID 41964818); premolar extrusion at 35 °C (PMID 41094147)
Frequently asked
01Which is more fatigue resistant, ProTaper Ultimate or WaveOne Gold?
Which is more fatigue resistant, ProTaper Ultimate or WaveOne Gold?
Answer
In the one bench comparison read for this page, WaveOne Gold Primary survived about two and a half times as many cycles as Ultimate F2 at 35 °C in a 60-degree canal (PMID 41964818).
- 01Ultimate F2 broke at a higher torque and was stiffer in bending in the same series.
02Do they shape curved canals differently?
Do they shape curved canals differently?
Answer
In curved maxillary mesiobuccal canals they did not differ in transportation or centring (PMID 41685849).
- 01In mandibular molars the Primary left more wall untouched and Ultimate transported more at one mid-root level (PMID 41964818).
03Which extrudes less debris?
Which extrudes less debris?
Answer
Neither, on its own: the two files extruded the same amount in straight premolars.
- 01The activation method mattered more, and WaveOne Gold with sonic activation extruded the least of nine combinations (PMID 41094147).
04What are the motor settings side by side?
What are the motor settings side by side?
Answer
ProTaper Ultimate runs at 400 rpm with a torque window of 4.
- 010 to 5.
- 022 Ncm per its IFU; the studies read here ran it at 4 Ncm.
- 03WaveOne Gold runs on the WaveOne ALL preset reciprocation programme.
- 04The full protocol pages list both.
References
- Ribeiro G, Martin V, Rodrigues CU, et al. Comparison of the canal transportation and centering ability of TruNatomy, WaveOne Gold and ProTaper Ultimate: an ex vivo study in human maxillary molars. Eur Endod J. 2025. PubMed
- Rodrigues JV, Godoi-Lopes J, Prado HS, et al. Mechanical properties and micro-CT-based biomechanical performance of NiTi instrumentation systems in mandibular molars. Odontology. 2026. PubMed
- Kara Ongun S, Tavşan O. The effect of the use of irrigation activation methods with different file systems on the amount of apical debris extrusion. Sci Rep. 2025. PubMed
Specifications
| — | ProTaper Ultimate | WaveOne Gold |
|---|---|---|
| Manufacturer | Dentsply Sirona | Dentsply Sirona |
| Alloy | M-Wire / Gold / Blue Heat-Treated NiTi | NiTi with proprietary Gold heat treatment |
| Heat Treatment | Gold Heat-Treated | Gold Heat-Treated |
| Motion | Continuous Rotation | Reciprocating |
| Files | 8 | 5 |
| Taper | Variable | Variable |
| Cross-section | Parallelogram (variable acute angles, off-centered) | Parallelogram |
| Speed | 400 RPM | — |
| Torque | 4 Ncm | — |
| Use Type | Single-use | Single-use |
Best For
ProTaper Ultimate
WaveOne Gold
Key Features
ProTaper Ultimate
Slider-Shaper-Finishers concept with dual heat treatments: Gold for standard sequence, Blue for auxiliary finishers in large canals
WaveOne Gold
Single-file reciprocating system — one glider + one shaping file for most cases, with dedicated WaveOne/WaveOne Gold motor settings