  Since the Resolution 198/2019 of Brazilian Dental Council, which regulates
orofacial harmonization as a dental specialty, and the advent of various uses
of facial fillers, such as hyaluronic acid (HA), it is possible to perform both
esthetic and functional corrections in individuals. Individuals with cleft lip
and palate (CLP) present lip irregularities even after orofacial rehabilitation
with an interdisciplinary team with several corrective surgeries, interfering
with the esthetics, which can cause problems in self-esteem and social
insertion. Thus, facial filling is an innovation that, together with dentistry,
contributes to the individual's esthetics and well-being. Considering the
patient safety and health, more research is progressively being conducted to
make such procedures less invasive. This work conducted a literature review on
the use of HA as a facial filler to correct lip scars in patients with CLP. By
a literature and transverse search in Scientific Electronic Library Online and
PubMed databases using specific descriptors, the studies that met the inclusion
criteria were selected, from 1990 to 2020. It can be concluded that the use of
HA as a facial filling material in the correction of lip scars from reparative
surgeries related to CLP has been shown to be effective both for correction of
facial asymmetry and to improve the quality of life of patients who used the
procedure.
