EC Dental Science

The periodontal pocket is the hallmark lesion of periodontitis and represents a pathologically deepened gingival sulcus resulting from the destruction of the supporting periodontal tissues. While traditionally regarded as a simple anatomical defect, contemporary evidence recognizes the periodontal pocket as a dynamic and complex microenvironment where microbial dysbiosis, host immune responses, genetic susceptibility, and environmental factors interact to drive disease progression. Advances in periodontal research have significantly improved our understanding of pocket formation, emphasizing the transition from a health-associated biofilm to a dysbiotic microbial community dominated by pathogenic species. Modern concepts such as the ecological plaque hypothesis, keystone pathogen theory, polymicrobial synergy and dysbiosis, and host-microbial interactions have redefined the etiopathogenesis of periodontal pockets. In addition, recent evidence highlights the roles of inflammatory mediators, matrix metalloproteinases, osteoimmunology, epigenetic modifications, and the oral microbiome in tissue destruction and disease progression. The 2017 World Workshop classification further underscores the importance of integrating pocket depth with staging, grading, and risk assessment for comprehensive diagnosis and treatment planning. Contemporary diagnostic modalities, including biomarker analysis, advanced imaging, molecular microbiology, and artificial intelligence-based approaches, have enhanced the precision of periodontal assessment. This review summarizes the historical evolution, biological basis, microbial ecology, immunopathogenesis, diagnostic advances, and current therapeutic concepts related to the periodontal pocket. A comprehensive understanding of these contemporary concepts provides clinicians with a stronger foundation for evidence-based diagnosis, personalized treatment strategies, and long-term periodontal stability, ultimately improving patient outcomes and supporting the principles of precision periodontology.

Keywords: Periodontal Pocket; Periodontal Stability; Precision Periodontology

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