• Title/Summary/Keyword: 하악 전돌

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Prosthetic full mouth rehabilitation of patient with mandibular prognathism and asymmetry: a case report (하악의 전돌 및 비대칭을 가진 환자에서 보철적 전악 구강회복 증례)

  • Jaeyeong Lim;Hwa-Jeong Lee;Jong-Eun Kim
    • The Journal of Korean Academy of Prosthodontics
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    • v.62 no.1
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    • pp.28-37
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    • 2024
  • Severe cases of mandibular prognathism can be treated with orthodontic therapy or surgical correction, but there are situations where only prosthetic improvement is possible. An understanding of class III patients is needed, including a vertical chewing pattern and the absence of anterior guidance. Additionally, it is relatively easy to increase occlusal vertical dimension to correct the anterior crossbite, but this approach can sometimes lead to unfavorable results, necessitating careful diagnosis and treatment planning. In this case report, oral rehabilitation was conducted in a patient with mandibular prognathism and asymmetry, utilizing implants and fixed dental prosthesis. Through a step-by-step treatment approach, the existing occlusal vertical dimension was maintained, and the final fixed dental prosthesis restoration was completed. Accordingly, it shows functional and aesthetically appropriate results, and reports on the patient's diagnosis and treatment process.

CONSERVING THE CENTRIC RELATION POSITION OF CONDYLAR HEAD WITH MINI-HOFFMANN SETS IN VERTICAL RAMUS OSTEOTOMY (하악골 수직골절단술시 MINI-HOFFMANN SETS을 이용한 하악 과두의 중심위의 보존)

  • Jeong, Inn-Won
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.13 no.1
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    • pp.95-99
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    • 1991
  • Several authors have proposed techniques and devices by which the correct position of the proximal segment can be maintained both during fixation and postoperatively. Schendel, Epker, Lake, Worms, Ive and Poulton have been discussed the problem of condylar distration in mandibular orthognathic surgery. This study described have showed the some advantages forward repositioning of the condyle head in vertical ramus osteotomy which used with the Mini-Hoffmann sets in external skeletal pin fixation extraorally in 19 cases.

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Combined Surgical and Orthodontic Treatment of Bimaxillary Dento-Alveolar Protrusion: A Report of Case (전방부분절 골절단술에 의한 상하악 전돌증의 악교정 1 예)

  • Byun, Sang-Kil;Lee, Hee-Keung;Jin, Byung-Rho;Oh, Meung-Chull;Kim, Tae-Joo;Kim, Young-Jun
    • Journal of Yeungnam Medical Science
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    • v.2 no.1
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    • pp.271-279
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    • 1985
  • The authors treated a case of bimaxillary dentoalveolar protrusion corrected by anterior segmental osteotomies: As presurgical treatment & process, closing of the upper anterior spacing with fixed appliances was worked out, cephalometric predicition & model surgery was done, and fabrication of intra-arch acrylic resin splints were made. It was not necessary to make an intermaxillary fixation with wire after surgery. Only intramaxillary fixation of anterior retracted mobile segment with resin plate was required for 8 weeks. After surgical treatment, leveling of the upper and lower arch with rectangular arch wire were accomplished as the Intrusion of anterior teeth proceeded. We will continue to improve the class II molar relationship by using class II elastics and have a good occlusiion through the orthodontic treatment.

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Severe bimaxillary protrusion with adult periodontitis treated by corticotomy and compression osteogenesis (치조골 소실과 심한 양악전돌을 동반한 성인환자에서의 피질골 절단술과 Compression osteogenesis를 이용한 교정치료)

  • Kim, Seong-Hun;Lee, Kye-Bok;Chung, Kyu-Rhim;Nelson, Gerald;Kim, Tae-Woo
    • The korean journal of orthodontics
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    • v.39 no.1
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    • pp.54-65
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    • 2009
  • This paper describes the case of a 50-year-old female with a Class II malocclusion who presented with severe bimaxillary protrusion and generalized alveolar bone loss due to adult periodontitis. The treatment plan consisted of extracting both upper and lower first premolars and periodontal treatment. Anterior segmental osteotomy(ASO) of the mandible and upper anterior segment retraction using compression osteogenesis after peri-segmental corticotomy(Speedy orthodontics) was performed. Correct overbite and overjet, facial balance, and improvement of lip protrusion were obtained. However, a slight root resorption tendency was observed on the lower anterior dentition. The active treatment period was 9 months and the results were stable for 27 months after debonding. This new type of treatment mechanics can be an effective alternative to orthognathic surgery.

Dental and Skeletal Characteristics and Behavioral Aspects of the Patient with Floating-Harbor Syndrome Compared with Twin Sister (Floating-Harbor 증후군 환자와 쌍둥이 여동생의 치성 및 골격성 특성과 행동 양상 비교)

  • Jonghwa, Lim;Gimin, Kim;Jaesik, Lee;Soonhyeun, Nam;Hyunjung, Kim
    • Journal of the korean academy of Pediatric Dentistry
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    • v.49 no.2
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    • pp.234-240
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    • 2022
  • Floating-Harbor syndrome (FHS) is a rare genetic disorder. This report introduced in a patient with FHS. Distinctive facial characteristics, severe skeletal class 3 malocclusion with underdeveloped maxilla and protruded mandible, congenital missing teeth, microdontia and ectopic positions of maxillary teeth were presented in the patient. In his twin sister, mild skeletal class 3 malocclusion with protruded mandible was observed but congenital missing teeth and microdontia were not observed. High-arched palate, narrow V-shaped maxillary arch compared to wide and ovoid mandibular arch and inverse relationship between the maxillary and mandibular intermolar width resulted in posterior crossbite were confirmed by model analysis of the patient. These were not observed in the twins. Behaviorally, poor cooperation during dental treatment because of mental retardation was observed in the patient.

Evaluation of Soft Tissue Change after Segmental Osteotomy in Korean (한국인에서의 분절골 절단술 후 연조직 변화의 평가)

  • Park, Je-Uk
    • The korean journal of orthodontics
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    • v.28 no.6 s.71
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    • pp.975-979
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    • 1998
  • Our Goal of modified segmental osteotomy on maxilla accompanied by mandibular anterior subapical osteotomy was to get the best results from patients of bi-alveolar or bi-maxillary protrusion. In this study, cephalometric and photo (en face, profile) analysis have been compared to define the soft tissue change after surgery. Lip protrusion was efficiently reduced and nasolabial angle was much obtused. Although nose was a little widened, it was quite acceptable. Blood circulation on osteotomized segment was well maintained. This relatively simple methods could be successfully applied to many patients.

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