Descrição
One of the most interesting and not yet understood anatomical structures of the oral cavity is the frenum or frenulum (1,2). The frenum, a mucous connective tissue inserted on hard- or soft-parts of the oral cavity, is histologically composed of fibrodense tissue and occasionally of striated muscle fibers (1,2). Three types are commonly identified in the oral cavity: superior labial frenum, inferior labial frenum, and lingual frenum (3). The lingual frenum (LF) is an important structure that anatomically relates to the tongue and mandible (4). A short LF can interfere with tongue mobility, which can lead to a few problems including breastfeeding difficulties, speech disorders, anterior open bite, and mandibular prognathism (5-7).