/** The six risk vectors of the Lang & Tonetti diagram. */
export declare const PERIODONTAL_RISK_FACTORS: readonly ["bleeding", "pockets", "toothLoss", "boneLossAge", "smoking", "systemic"];
export type PeriodontalRiskFactor = (typeof PERIODONTAL_RISK_FACTORS)[number];
/** Ordinal risk level for one factor and for the whole assessment. */
export type PeriodontalRiskLevel = 'low' | 'moderate' | 'high';
/** Environmental (smoking) exposure bands. */
export type SmokingExposure = 'none' | 'former' | 'light' | 'moderate' | 'heavy';
/** Consumer-supplied risk inputs. All optional — an absent factor scores low. */
export interface PeriodontalRiskInputs {
    /** Bleeding on probing, % of sites (0–100). */
    bleedingPercent?: number;
    /** Number of residual pockets ≥ 5 mm. */
    pocketsOver5mm?: number;
    /** Number of teeth lost (of 28, third molars excluded). */
    toothLoss?: number;
    /** % bone loss at the worst site — combined with `ageYears` into BL/age. */
    boneLossPercent?: number;
    /** Patient age in years (denominator of the bone-loss/age ratio). */
    ageYears?: number;
    /** Smoking exposure band. */
    smoking?: SmokingExposure;
    /** A relevant systemic / genetic factor is present (e.g. diabetes, IL-1). */
    systemic?: boolean;
}
/** Scored result for one factor. */
export interface PeriodontalRiskFactorScore {
    factor: PeriodontalRiskFactor;
    level: PeriodontalRiskLevel;
    /** 0 (best) → 1 (worst): the normalised radius used to plot the vertex. */
    radius: number;
    /** Raw value formatted for the accessible summary, or null when unset. */
    valueText: string | null;
}
/** The whole assessment. */
export interface PeriodontalRiskResult {
    factors: PeriodontalRiskFactorScore[];
    overall: PeriodontalRiskLevel;
}
/** Order a level to an ordinal (low 0 … high 2). */
export declare function riskOrdinal(level: PeriodontalRiskLevel): 0 | 1 | 2;
/**
 * Score the six vectors and the overall risk. Overall follows the Lang &
 * Tonetti reading: high if any vector is high or two-or-more are moderate;
 * low only when every vector is low; moderate otherwise.
 */
export declare function computePeriodontalRisk(inputs: PeriodontalRiskInputs): PeriodontalRiskResult;
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