Regarding objective assessment of endo-periodontal pathologies prevalence
DOI:
https://doi.org/10.32782/2415-8127.2026.73.14Keywords:
endodontics, periodontology, endo-periodontal lesions, tooth, pulp, periodontium, periodontitis, prevalence, diagnostics, diagnostic criteriaAbstract
In the context of studying prevalence and treatment characteristics of endo-periodontal lesions across different patient cohorts, as well as evaluating the feasibility of modifying existing diagnostic and prognostic algorithms in light of ongoing digitalization in dental practice, it is essential to objectively determine the frequency of these conditions based on available evidences and to assess the applicability and validity of the clinical and radiological criteria used for their identification.
Objective – to analyze and objectively assess prevalence rates of endo-periodontal lesions at different levels of analysis reported in previous studies, and to evaluate the association of these rates with other patient-related factors.
Study was designed as a targeted literature review with elements of comparative data synthesis regarding the prevalence of endo-periodontal lesions and factors associated with their diagnostic frequency. Included studies met the following criteria if: 1) reported prevalence rates of endo-periodontal lesions at the level of patient cohorts and/or analyzed teeth; 2) applied defined diagnostic criteria (clinical and/or radiological) and/or classification systems; 3) provided data on associations between prevalence rates and other factors (age, sex, periodontal status, systemic conditions, or localization).
Analyzed studies demonstrated that endo-periodontal lesions exhibit a heterogeneous epidemiological profile, which varies substantially depending on sample characteristics and diagnostic approach employed. Across different cohorts pathology shows an association with age, with tendency toward higher prevalence among older patients at the patient-oriented level. However, at the tooth level, alternative prevalence peaks may be observed, reflecting the influence of sample structure and methodological approaches. Several studies report a predominance of more advanced lesion stages (grades II-III), potentially reflecting a «clinical selection» effect favoring patients with more pronounced symptoms.
Prevalence of endo-periodontal lesions is characterized by marked variability: according to clinical observations it ranges 0,4-5,0%, whereas in specific patient cohorts and radiological studies it reaches 14-31%. These discrepancies are attributable to differences in study design, levels of analysis (patient-based versus tooth-based), applied classifications, and diagnostic criteria. Most studies identify associations between prevalence and age, presence and severity of periodontitis, systemic conditions (particularly diabetes mellitus), and localization in the mandibular molar region.
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