This article reports orthodontic treatment of a case of hypodontia of five premolars
in an 11-year-old female patient with a positive tooth size-arch length discrepancy
in both dental arches. The patient had a straight profile with balanced facial
growth. Setup manufacture revealed the possibility of achieving ideal occlusion by
mesializing permanent molars up to 15 mm, in addition to keeping a primary molar in
the dental arch. With the aid of absolute anchorage, the proposed mechanics was
performed and the occlusion predicted in the setup was achieved, while profile and
facial growth pattern were maintained. The use of miniscrews for extensive
orthodontic movements was successful. Furthermore, one primary molar was extensively
mesialized. The indication of gingivoplasty to correct gingival smile proved
effective. This is considered a useful technique for orthodontists.