ðŸĶ· Clinical Calculators

Caries Risk Assessment Tool

CAMBRA-based caries risk assessment for adults and children. Classify patients as Low, Moderate, High, or Extreme risk and get a tailored preventive protocol with fluoride varnish frequency, sealant guidance, and recall intervals.

CAMBRA Framework Adults and Children Preventive Protocol Recall Intervals PDF Export
Caries Risk Assessment (CAMBRA)
UCSF CAMBRA Framework - Adults and Children
Patient Information
yrs
Disease Indicators Any YES = High Risk minimum
Visible cavitation or radiographic lesion into dentine DI
White spot lesion or enamel hypoplasia DI
Restoration placed in past 3 years (indicative of caries activity) DI
Biological Risk Factors Each YES increases risk level
High MS and/or Lactobacilli counts (if tested) RF
Visible plaque present RF
Frequent between-meal sugar / refined carbohydrate intake (more than 3x/day) RF
Hyposalivation / xerostomia (by observation or history) RF
Medication-induced dry mouth (3 or more xerogenic medications) RF
Exposed root surfaces present RF
Fixed orthodontic appliances present RF
Inadequate saliva due to radiation therapy to head/neck RF
Deep pits and fissures (unsealed) RF
Recreational drug use (methamphetamine, cocaine, or similar) RF
Eating disorders (bulimia / anorexia) RF
Protective Factors Each YES lowers risk
Fluoride exposure: optimally fluoridated water or fluoride supplements PF
Regular use of fluoride toothpaste PF
Fluoride varnish applied in last 6 months PF
Good oral hygiene: plaque-free at most sites PF
Adequate saliva flow (clinically normal) PF
Regular dental visits and professional preventive care PF
Adequate buffering capacity (if tested) PF

ðŸĶ· Caries Risk Assessment Results

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Risk Level
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CAMBRA classification
Recall Interval
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Recommended frequency
Fluoride Varnish
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Applications per year
Tailored Preventive Protocol
Intervention Recommendation Rationale
Score Breakdown
Disease Indicators: 0 Risk Factors: 0 Protective Factors: 0 Net Score: 0
Clinical Disclaimer: This tool implements a simplified version of the CAMBRA framework for screening purposes. Clinical judgment, full chart review, radiographic assessment, and salivary testing where available should inform final risk classification. Source: Featherstone JDB et al., CAMBRA: Caries Management by Risk Assessment, JCDA 2007.

Caries as a risk-factor disease

Dental caries isn't random. It's predictable. The same patient who gets 4 cavities a year can sit next to someone who's had no new decay in a decade, despite eating the same diet. The difference is in the balance of risk and protective factors specific to each person. CAMBRA exists to capture that balance and act on it.

The framework was developed at UCSF and validated across large adult and pediatric populations. It drives treatment differently for different patients. A Low-risk adult gets 12-monthly check-ups and standard fluoride toothpaste. An Extreme-risk patient gets 3-monthly recalls, 4 fluoride varnish applications per year, chlorhexidine rinse, and potentially 5,000 ppm prescription toothpaste. Same dentist, same practice, completely different protocol. That's the point.

For patients concerned about treatment costs that may result from high caries activity, direct them to our Treatment Cost Estimator. For pediatric patients, the Pediatric Fluoride Dosage Calculator provides age-specific guidance.

Disease indicators vs risk factors

The CAMBRA distinction between disease indicators and risk factors matters clinically. Disease indicators are signs that the disease process is already active: cavitations, white spot lesions, recent restorations placed because of new decay. Any one of these immediately places the patient at High risk minimum, regardless of how many protective factors they have.

Risk factors are the biological and behavioral drivers that feed the caries process. High bacterial counts, frequent sugar exposure, dry mouth, exposed root surfaces. These push risk up. Protective factors push back: fluoride exposure, good saliva, regular professional care. The net result of this balance determines where the patient lands on the four-level scale.

Using this tool in practice

Run through the assessment at the new patient appointment and at each recall. The score changes as the patient's status changes. A High-risk patient who responds well to intensive prevention might drop to Moderate within a year. A Low-risk patient who develops medication-induced dry mouth can jump straight to High.

Pair this assessment with our Periodontal Risk Assessment for a complete picture of the patient's disease risk profile. Both use validated frameworks and generate PDF-exportable results suitable for clinical records.

Frequently Asked Questions

Caries Management by Risk Assessment. It was developed at UCSF School of Dentistry under Professor John Featherstone and has been validated in multiple large-scale studies across adult and pediatric populations. The core principle is that caries prevention should be calibrated to individual patient risk, not applied uniformly to everyone.
CAMBRA recommends 3-monthly recall for High-risk patients and 3-monthly for Extreme-risk patients. Both groups should receive fluoride varnish at each visit (3-4 applications per year). The evidence shows that High-risk patients seen every 12 months continue to deteriorate, while the same patients seen every 3 months with intensive prevention show significant caries arrest within 12-18 months.
Yes, and significantly. A patient starting chemotherapy or radiation to the head and neck moves from Low to Extreme risk almost overnight due to salivary gland damage. A previously Extreme-risk patient who stops recreational drug use, improves diet, and complies with intensive fluoride therapy can drop to Moderate within a year. Re-assess at every recall.

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