Obturation Calculator
Gutta percha and sealer for canal filling.
Medical Disclaimer
This calculator is for informational and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making decisions about your health. Never disregard professional medical advice or delay seeking it because of results from this tool.
Inputs
Results
Master cone length (mm)
21
How to Use This Calculator
- Enter Master Cone Size (ISO) matching the final apical file size.
- Set Working Length (mm) and Number of Canals to be obturated.
- Enter Canal Taper to verify master cone taper matches.
- Review Master Cone Length (mm), Total Accessory Cones, and Sealer Volume (mL).
- Use these quantities to prepare the tray before obturation, minimizing chairside delays.
How the result changes with Working length (mm)
| Working length (mm) | Master cone length (mm) |
|---|---|
| 13 | 13 |
| 19 | 19 |
| 26 | 26 |
| 33 | 33 |
What each input means
- Master cone size (ISO)
- ISO size of the master gutta percha cone.
- Working length (mm)
- Established working length.
- Number of canals
- Total canals to obturate.
- Canal taper
- Preparation taper (e.g. 0.04, 0.06, 0.08).
What each result means
- Master cone length (mm)
- Required master cone length to reach working length.
- Total accessory cones
- Total accessory gutta percha cones needed for all canals.
- Sealer volume (mL)
- Estimated total sealer volume for all canals.
- Technique (1-3)
- 1 = cold lateral, 2 = warm vertical, 3 = carrier-based.
- Spreader size (ISO)
- Recommended finger spreader ISO size.
- Est. obturation time (min)
- Estimated total obturation time.
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersMaster cone size (ISO) = 30, Working length (mm) = 21, Number of canals = 3, Canal taper = 0.06 = 4 input(s) provided
- Calculate Master cone lengthMaster cone length21 = 21
- Calculate Total accessory conesTotal accessory cones12 = 12
- Calculate Sealer volumeSealer volume0.06 = 0.06
Engine last updated .
Related Calculators
The questions that sit next to this one — chosen by subject, including calculators filed under a different category.
Irrigation Protocol Calculator
NaOCl concentration and volume from canal anatomy.
EndodonticsFile Sequence Planner Calculator
Rotary file sequence from canal anatomy.
EndodonticsPost Space Calculator
Post length and diameter from root anatomy.
DentalRoot Canal vs Extraction Calculator
Compare the long-term cost of root canal therapy vs tooth extraction with implant or bridge replacement options.
More in Medical & Clinical.