As the primary teeth erupt,
the height in the alveolar structures
increases normally and the attachment
of the frenum moves superiorly with the
maxillary alveolar crest.7
As with all body parts, MMLF has
demonstrated variations and anomalies.8
Sewerin created the classifications and
nomenclature that is used to describe
these variations (Fig. 1).9 Despite this
established classification system, there is
controversy regarding the origins of these
variations. Some authors believe that the
frenal tag is familial and is inherited as
an autosomal dominant trait.1,10 Others
posit that nodules and other variations of