A review of localized juvenile periodontitis (LJP): Part I. Clinical features, epidemiology, etiology, and pathogenesis.

Localized juvenile periodontitis (LJP) is not commonly encountered in dental practice. Yet, when it is encountered, prompt and effective therapy is required to combat the severity of disease and its rapid progression. Failure to understand its diagnosis and etiology leads to failures in management of LJP. The clinical features, etiology, and pathogenesis of LJP are reviewed to provide the clinician with a sufficient understanding to appropriately manage or refer LJP patients.