Data-Driven Tooth Selection Enhances Partial-Mouth Periodontal Screening

= 0.003), indicating its potential to replace CPI. Further optimization for age- and gender-specific protocols occasionally yielded localized improvements, such as males aged 55 to 64 y (teeth 17, 16, 27, 47, 26, 33, 45, 37, 43, 25), while the unified XGB-derived protocol remained robust across all strata. These findings support the general use of a unified, data-driven protocol for large-scale epidemiological surveys. SHAP-guided tooth selection offers an interpretable and efficient alternative to traditional PMPE, bridging the gap between accuracy and feasibility in large-scale periodontal surveys.