• Title/Summary/Keyword: 치조

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Managements of ankylosed incisor occurred during adolescence using alveolar bone distraction osteogenesis and decoronation: case report (성장기에 발생한 유착치의 치조골 신장술과 치관 절제술을 이용한 심미적 개선 치험례)

  • Kwon, Eun-young;Son, Woo-Sung;Park, Soo-Byung;Kim, Seong-sik;Kim, Yong-il;Choi, Youn-kyung
    • Journal of Dental Rehabilitation and Applied Science
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    • v.33 no.2
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    • pp.143-153
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    • 2017
  • One of the common complications of dental injury is tooth ankylosis. Unlike adults, when tooth ankylosis occurs in the adolescents, ankylosis interfered the growth of the adjacent alveolar bone, resulting in the developmental failure of the alveolar bone and subsequent open bite. The most common treatment option for ankylosed tooth is extraction. However, when prognosis of ankylosed tooth after extraction is expected to be poor due to severity of infrapositioning or prosthetic replacement cannot be performed immediately, various treatment options should be considered. This report suggests multidisciplinary treatment that might bring functionally and esthetically favorable result included alveolar bone distraction osteogenesis and decoronation of ankylosed maxillary anterior tooth with orthodontic and prosthetic treatments.

Complete denture treatment using lingualized occlusion scheme at the edentulous patient with severely absorbed flat residual ridges: a case report (심한 치조골 흡수로 인해 편평한 치조제를 보이는 완전 무치악 환자에서 설측 교두 교합을 이용한 의치 수복 증례)

  • Choi, Bum-Shik;Lee, Joon-Seok
    • Journal of Dental Rehabilitation and Applied Science
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    • v.33 no.3
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    • pp.207-215
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    • 2017
  • Many factors should be considered for successful denture treatment at edentulous patients: support, retention, stability, occlusion, esthetics, etc. The patient who has severely absorbed residual ridges, however, treatments are challenging to satisfy those factors. The dentures that use anatomic artificial teeth show good mastication efficiency and esthetics but, can easily lose stability at absorbed ridges. On the contrary, the dentures that use non-anatomic artificial teeth perform better stability but, lower masticatory efficiency and esthetics at absorbed ridges. The lingualized occlusion, using both anatomic and non-anatomic teeth, introduced for compromise those of the pros and cons. At lingualized occlusion, buccal cusps of the teeth do not contact on centric relation. Therefore, direction of the occlusal force towards lingually, then stability of dentures increases. This case report shows the results of the treatment flat residual ridges using complete dentures with ligualized occlusion to increase dentures stability and satisfactory of the patient.

Implant placement after guided bone regeneration (GBR) in severe defected mandibular alveolar ridge: case report (심하게 결손된 하악 치조골에서 골유도재생술(GBR) 후 임플란트의 식립: 증례보고)

  • Chee, Young-Deok;Yu, Tae-Hoon
    • Journal of Dental Rehabilitation and Applied Science
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    • v.30 no.2
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    • pp.184-191
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    • 2014
  • In the mandibular posterior molar area, ridge deficiency is an unfortunate obstacle in the field of implant dentistry. Many techniques are available to rebuild the deficient ridge. Selection and necessity of these techniques are associated with significant morbidity and often require a second surgical site. With the advent of guided bone regeneration (GBR), one may now graft the deficient ridge with decreased morbidity and without a second surgical site. In this case, guided bone regeneration procedures were performed with a combination of allograft, xenograft, and alloplast, excepting autogerous bone at severe defected mandibular alveolar ridge and then placed to the implant successfully. We report that implant placement were good in two cases.

The Diagnosis and Treatment of Anterior Openbite Malocclusion (전치부 개방교합의 진단과 치료)

  • Chang, Young-Il;Moon, Seong-Cheol
    • The korean journal of orthodontics
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    • v.28 no.6 s.71
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    • pp.893-904
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    • 1998
  • There are varieties of severe malocclusions, which can be treated orthodontically, but with a great deal of effort. Anterior openbite, in particular, is one malocclusion thought to be more difficult to treat, and therefore, most of them have to be corrected by means of surgical intervention. To solve these problems, numerous studies pertinent to treatment modalities have been introduced with controversies on the effectiveness of treatment. Suggested treatment modalities for anterior openbite are based directly or indirectly on the neuromuscular and morphological features and on the etiologic and/or the environmental factors. Even though the vertical relationship of the face is increased due to the growth variation, the normal occlusal relationship can be achieved by the adequate dentoalveolar compensatory mechanism, but in the case of inadequate or negative dentoalveolar compensation, openbite is likely to be present. If the skeletal dysplasia is too severe to be solved by orthodontic treatment alone, combined treatment with surgery should be done to restore the function and the esthetics of the orofacial complex. In many cases, however, orthodontic alteration of the dentition pertinent to the given skeletal pattern with the proper diagnosis and treatment planning can bring satisfactory results. The treatment changes with the Multiloop Edgewise Archwire(MEAW) therapy occurred mainly in the dentoalveolar region and showed a considerable similarity to the natural dentoalveolar compensatory mechanism. In other words, the MEAW technique allows orthodontists to produce the natural dentoalveolar compensation orthodontically. Even if an openbite is corrected by the orthodontic dentoalveolar compensation suitable for the skeletal pattern, relapse may still occur by the persisting etiologic factors which originally prohibited the natural dentoalveolar compensation. The etiologic factors should be determined at the time of initial diagnosis and should be controlled during treatment and retention.

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Use of digital scan data for evaluation of edentulous ridge relationship: A case report for removable prosthesis with unilateral cross bite (디지털 스캔 데이터를 활용한 무치악 치조제 관계의 평가와 인공치 선택: 편측 교차교합의 가철성 의치 수복 증례)

  • Kim, Jeong-Hoon;Kim, Jong-Eun;Park, Young-Bum;Lee, Keun-Woo
    • The Journal of Korean Academy of Prosthodontics
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    • v.57 no.3
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    • pp.304-311
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    • 2019
  • After the teeth were extracted, maxillary and mandibular alveolar ridges show the opposite resorption pattern and as a result, the mandibular arch is enlarged than maxillary arch relatively. In this situation, we should evaluate both alveolar ridge relationship and arrange the artificial teeth properly for stability of removable prosthesis. This case is a 77 years old male patient who wishes to make removable prosthesis and has atrophic alveolar ridge. By use of model scanner and CAD software, the angle between interalveolar crest line and occlusal plane was easily measured. Depending on the measurement, the artificial teeth are arranged in unilateral cross bite and after completion, patient was satisfied with the denture which showed proper stability, retention, support.

Regeneration of total tissue using alveolar ridge augmentation with soft tissue substitute on periodontally compromised extraction sites: case report (치주질환 원인의 심한 골소실을 동반한 발치와에 대한 치조제 증강술과 연조직 대체제를 이용한 조직 재생 효과: 증례보고)

  • Yerim Oh;Jae-Kwan Lee;Heung-Sik Um;Beom-Seok Chang;Jong-bin Lee
    • Journal of Dental Rehabilitation and Applied Science
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    • v.39 no.4
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    • pp.276-284
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    • 2023
  • After tooth extraction, alveolar bone is resorbed over time. Loss of alveolar bone and reduction of upper soft tissue poses difficulties in future implant placement and long-term survival of the implant. This case report focuses on increasing the soft and hard tissues at the implant placement site by using alveolar ridge augmentation and a xenogeneic collagen matrix as a soft tissue substitute in an extraction socket affected by periodontal disease. In each case, the width of the alveolar bone increased to 6 mm, 8 mm, and 4 mm, and regeneration of the interdental papilla around the implant was shown, as well as buccal keratinized gingiva of 4 mm, 6 mm, and 4 mm, respectively. Enlarged alveolar bone facilitates implant surgery, and interdental papillae and keratinized gingiva enable aesthetic prosthesis. This study performed alveolar ridge augmentation on patients with extraction sockets affected by periodontal disease and additionally used soft tissue substitutes to provide a better environment for implant placement and have positive effects for aesthetic and predictive implant surgery.