AÇBİD - 13th International Congress- 2019, Antalya, Türkiye, 24 - 28 Nisan 2019, ss.47
Objection: Open bite malocclusion is one of the most difficult cases in dentistry. This
malocclusion is not only a problem related to the dental component, but also a skeletal
component. One of the frequently used methods in the treatment of skeletal open bite in adult
patients is the technique of orthodontics and orthognathic surgery.
Case: Here we report a oligodontic patient with lateral open-bite who treated with orthodonticssurgery-prosthesis cooperation. A 17-year-old female patient was admitted to our university
with the complaint of incorrect bite and dislike the appearance of her teeth. The patient had 1
mm overjet and 7 mm openbite between the right and left posterior molar teeth.Depending on
the oligodontism, there is a congenital retardation in three parts of the alveolar bone. Bilateral
sagittal split osteotomy was performed in a clockwise rotation of approximately 17 degrees
to the mandible. The perpendicular dimensions of the patient were increased with posterior
rotation, the jaw tip was reduced, and the posterior openbite was corrected. The guide splint
is manufactured in such a way that it provides 1 mm anterior thickness and 2 mm thickness in
the posterior part in order to make the previously planned prosthetic restoration after surgery.
Conclusion: After 30 months of orthodontic treatment, Class I molar-canine relationship was
obtained. Openbite is closed by mandibular rotation. Oligodontia was corrected by prosthetic
restoration. In the light of these results, it was seen that orthognathic surgery was successful
in openbite cases and multidisciplinary approach was necessary for treatment efficacy.