ORIGINAL RESEARCH Journal of Case Reports in Dental Medicine (J Case Rep Dent Med) May 2020, Volume 2, Number 2: 40-42 40 http://jcrdm.org © 2019 JCRDM. Published by Faculty of Dentistry, Hasanuddin University. All rights reserved. Objective: This article discusses a case reports of skeletal class III malocclusions treated with fixed orthodontic appliances and orthognathic surgery. Methods: Female patients aged 16 with complaints of crossbite in the anterior region and facial aesthetics. The objective examination showed ectostem teeth at 13, peg shaped teeth at 12, agenesi at 22 and diastema in teeth 34-35. The mandible looks forward. Results: Orthodontic treatment with fixed orthodontic appliances to straighten teeth in the dental arch then orthognathic surgery was performed to correct advanced of mandibular jaw. Conclusion: Maximum results are obtained by interdisciplinary treatment between orthodontist and oral surgeon. Keywords: Class III, Orthodontic treatment, Orthognathic surgery Cite this Article: Habar ｅH, Ruslin M. 2020. Treatment of skeletal class III malocclusions with a combination of orthodontic treatment and orthognathic surgery. Journal of Case Reports in Dental Medicine.＠2(2): 40-42. DOI: 10.20956/jcrdm.v2i2.116 Treatment of skeletal class III malocclusions with a combination of orthodontic treatment and orthognathic surgery Eddy H. Habar, *1 Muhammad Ruslin 2 Abstract Introduction Skeletal Class III malocclusion are complex skeletal relationships that have abnormalities and are diffi- cult to correct. The incidence of this malocclusion in the caucasoid race is around 5 percent. Etiology is generally influenced by genetic factors. Treatment made to improve function and aesthetics. This requires a combination of orthodontic treatment and orthognathic surgery. 1,3 Patients with skeletal class III malocclusion usually show abnormalities in the jaw relation- ship and the teeth interdigitation. Common cephalometric values include short anterior cranium base length, small SNA angle, inclination of the anterior maxilla incisor teeth, inclination of anterior mandible incisor teeth, and 1/3 length of the lower face. The anterior tooth relation has a crossbite. Variations in skeletal class III malocclusion abnormalities can be as a retrusive maxilla, prognathism of mandible or both (combination). There is a pattern where the mandibular rotation is towards the back and overgrowth in the vertical direction (Long Face Syndrome). 2,4 In the case of skeletal class III malocclusion, good care planning is needed. Integrated treatment involving various fields of science and specialization as well as collaboration with patients is the key to successful care. Patients usually complain of discom- fort in terms of appearance, but usually also followed by disruption of chewing and speech functions and disorders of the temporo mandibular joints. 3,6 The The purpose of this paper is to describe the treatment of patients with skeletal class III malocclusion in combination with orthognathic surgery treatment. Case Report A 16-year-old female patient presents with complaints of anterior crossbite and facial aesthetic appearance which greatly disrupts self-confidence. The patient wants to improve the relation of his front teeth and improve the aesthetic appearance of his face figure 1. On extra oral examination found concave face profile form. From the lateral aspect, the lower lip appears more advanced than the upper lip. On intra oral examination figure 2, the maxillary teeth 13 appear which are ectostem, tooth 12 which is peg shaped, tooth 22 which is agenesis. In the lower jaw there are rotations in teeth 32, 32, 41 and 42 and diastema between teeth 34-35. The maxillary median line shifts to the right. Moderate patient oral hygiene. From cephalometry analysis it is known that SNA = 79, SNB = 82, ANB = -3 and mandibular length = 106mm. On functional examination there are no abnormalities. Normal TMJ has no clicking or pain. Analysis of the study model shows the rela- tionship of left and right molar are mesiocclusion. Negative open bite, negative overjet distance. The median line shifts to the right by 2 mm figure 3. tests after transfusion 1 Department of Orthodontic, Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia 2 Department of Oral and Maxillo- facial Surgery, Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia * Correspondence to: eddyorto@gmail.com Received: 27 Desember 2019 Revised: 15 February 2020 Accepted: 26 March 2020 Available Online 1 May 2020