Author/Authors :
Amaral Alves Marlière, Daniel Division of Oral and Maxillofacial Surgery - Piracicaba Dental School - State University of Campinas, Piracicaba, SP, Brazil , Eduardo Costa, Tony Division of Dentistry - Faculty of Medical Science and Health , MG, Brazil , de Matos Barbosa, Saulo Division of Dentistry - Faculty SaoLeolpoldo Mandic, SP, Brazil , Alvitos Pereira, Rodrigo Department of Oral and Maxillofacial Surgery - Pedro Ernesto University Hospital - State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil , de Miranda Chaves Netto, Henrique Duque Department of Clinical Dentistry - Juiz de Fora Dental School - Federal University of Juiz de Fora, MG, Brazil
Abstract :
Dentofacial deformities (DFD) presenting mainly as Class III malocclusions that require orthognathic surgery as a part of definitive
treatment. Class III patients can have obvious signs such as increasing the chin projection and chin throat length, nasolabial folds,
reverse overjet, and lack of upper lip support. However, Class III patients can present different facial patterns depending on the
angulation of occlusal plane (OP), and only bite correction does not always lead to the improvement of the facial esthetic. We
described two Class III patients with different clinical features and inclination of OP and had undergone different treatment
planning based on 6 clinical features: (I) facial type; (II) upper incisor display at rest; (III) dental and gingival display on smile;
(IV) soft tissue support; (V) chin projection; and (VI) lower lip projection. These patients were submitted to orthognathic
surgery with different treatment plannings: a clockwise rotation and counterclockwise rotation of OP according to their facial
features. The clinical features and OP inclination helped to define treatment planning by clockwise and counterclockwise
rotations of the maxillomandibular complex, and two patients undergone to bimaxillary orthognathic surgery showed harmonic
outcomes and stables after 2 years of follow-up
