CBCT for Endo Calculator

Imaging justification from case complexity scoring.

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

Canal complexity (0-10)

PAI score (0-5)

Retreatment case (0/1)

Prior trauma (0/1)

Tab to move between fields

Results

Justification score (0-100)

Recommendation level (1-3)2

Recommended FOV (cm)5

Est. radiation dose (uSv)35

Diagnostic yield (%)57%

How to Use This Calculator

Rate Canal Complexity (0-10) and enter the PAI Score (0-5) from radiographs.
Toggle Retreatment Case and Prior Trauma if applicable.
Review the Justification Score (0-100) — higher scores support CBCT use.
Check Recommendation Level (1 = optional, 2 = recommended, 3 = required).
Use Recommended FOV size to minimize patient dose while capturing the necessary anatomy.

How the result changes with Canal complexity (0-10)

Canal complexity (0-10)	Justification score (0-100)
1	15
3.5	25
6.5	37
9	47

What each input means

Canal complexity (0-10): Rate canal anatomy complexity: 0 = simple single canal, 10 = complex multi-canal with anomalies.
PAI score (0-5): Periapical index score: 1 = normal, 5 = severe pathology with exacerbating features.
Retreatment case (0/1): Is this a retreatment case? 0 = no, 1 = yes.
Prior trauma (0/1): History of dental trauma? 0 = no, 1 = yes.

What each result means

Justification score (0-100): Weighted CBCT justification score based on clinical factors.
Recommendation level (1-3): 1 = not recommended, 2 = consider, 3 = strongly recommended.
Recommended FOV (cm): Suggested field of view diameter in centimeters.
Est. radiation dose (uSv): Approximate effective dose in microSieverts.
Diagnostic yield (%): Estimated probability of obtaining additional diagnostic information.

How this is calculated

Worked example, using the default values

Identify Input Parameters
4 parameters
Canal complexity (0-10) = 5, PAI score (0-5) = 2, Retreatment case (0/1) = 0, Prior trauma (0/1) = 0 = 4 input(s) provided
Calculate Justification score
Justification score
31 = 31
Calculate Recommendation level
Recommendation level
2 = 2
Calculate Recommended FOV
Recommended FOV
5 = 5