Oro‑dental characteristics of three siblings with Papillon–Lefevre syndrome

Papillon–Lefevre syndrome (PLS) is a rare autosomal recessive disorder, showing oral and dermatological manifestations in the form of aggressive periodontitis, leading to the premature loss of both primary and permanent teeth at a very young age and palmar‑plantar hyperkeratosis. It was first described by two French physicians, Papillon and Lefevre in 1924. Immunologic, genetic, or possible bacterial etiologies have been thought to account for etiopathogenesis of PLS. Severe gingival inflammation and periodontal destruction occurred after the eruption of primary teeth. This condition should warn the physicians and dentists as a one of the important sign for the diagnosis of PLS. There have been over 250 cases reported in literature about PLS, but a few of these were in the same family. This study presents oro‑dental characteristics, dental treatments, and follow‑up of three siblings (age of sisters are 13, 6, and 4 years) with PLS, which is rarely seen in the same family.Key words: Hyperkeratosis, Papillon–Lefevre syndrome, periodontiti