• 제목/요약/키워드: Bimaxillary protrusion

검색결과 29건 처리시간 0.03초

혀의 자세 및 크기와 치아치조골 패턴의 관계에 관한 연구 (RELATIONS BETWEEN POSTURE AND SIZE OF THE TONGUE AND DENTOALVEOLAR PATTERN)

  • 김정훈;이기수
    • 대한치과교정학회지
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    • 제17권1호
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    • pp.33-45
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    • 1987
  • This study was designed to examine relations between posture and size of the tongue and dentoalveolar pattern. The sample was consisted of three groups, the 34 subjects of Normal occlusion, the 31 subjects of Bimaxillary protrusion and the 31 subjects of Class III malocclusion. On the cephalograms, lengths, heights and areas of the tongue and intermaxillary space and on the study model, arch length, intercanine width, intermolar width and palatal height were measured. These data from measuring cephalograms and models were statistically analyzed. The results of the study were as follows; 1. Length of the tongue was the greatest in Bimaxillary protrusion and in order of Normal occlusion and Class III malocclusion. 2. Posture of the tongue was the lowest in Class III malocclusion and in order of Bimaxillary protrusion and Normal occlusion. 3. There were a tendency to be larger area of tongue and intermaxillary space in Class III malocclusion compared to Normal occlusion and Bimaxillary protrusion. 4. Size of the tongue and intermaxillary space showed low correlations with the dentoalveolar pattern.

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근첨하 분절 골절단술을 병행한 III급 양악 전돌증의 교정치료 증례 (ORTHODONTIC TREATMENT OF CLASS III BIMAXILLARY PROTRUSION COMBINED WITH SUBAPICAL SEGMENTAL OSTEOTOMY)

  • 정미향;남동석
    • 대한치과교정학회지
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    • 제28권3호
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    • pp.479-486
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    • 1998
  • 양악 전돌은 흔히 접하는 부정교합 증례로서, 대부분 상하순의 전돌에 의한 안모 심미성의 손상을 주소로 내원한다. 이러한 증례는 제 1소구치를 발거하고 그 공간을 이용하여 전치부를 견인하여 치료하는 경우가 많으며, 성공적인 치료 결과를 얻을 수 있다. 그러나, 성인 환자의 경우에는 환자의 협조도 불량으로 인한 악외 고정원 사용의 불량, 치료기간의 장기화, 치조골이 충분하지 못한 경우등에 있어서의 치근 흡수량의 증가, 구외 장치 사용으로 인한 환자의 사회심리적 부담감등의 부작용이 있다. 이의 해결방안의 하나인 근첨하 분절 골절단술은 고정원의 절대 보존, 치료기간의 단축, 구외 고정원 사용 필요성 제거 및 이를 통한 환자의 협조도 증가 등의 장점을 가지고 있다. 이에, 제 1소구치 발거 및 이 부위를 이용한 근첨하 분절 골절단술을 병행하여 치료한 치아치조 전돌의 증례를 치료 전후의 두부 방사선 계측 사진및 연구 모형을 통해 비교분석하여 변화를 살펴보고, 이의 장단점을 고찰해 보도록 하고자 한다.

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혀와 악간공간(INTERMAXILLARY SPACE)에 관한 두부방사선 계측학적 연구 (A CEPHALOMETRIC STUDY OF THE TONGUE AND THE INTERMAXILLARY SPACE)

  • 강흥석;유영규
    • 대한치과교정학회지
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    • 제14권2호
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    • pp.233-239
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    • 1984
  • The author studied on the tongue position, tongue space and intermaxillary space at 4 groups; normal occlusion 30 cases, Angle's Class I bimaxillary protrusion 29 cases, Angle's Class II malocclusion 26 cases, Angle's Class III malocclusion 26 cases. This study used the data from cephalometric films of female subject aged from 16 to 23 years. Following results were obtained; 1. Dorsal height in Angle's Class III malocclusion was greater than normal occlusion. 2. Anterior Intermaxillary Height in Angle's Class I bimaxillary protrusion and Angle's Class III malocclusion was greater than normal occlusion. 3. Tongue space in Angle's Class I bimaxillary protrusion was greater than normal occlusion. 4. The ratio of the tongue space to the intermaxillary space (T.S./I.S.) in Angle's Class II malocclusion was greater and the ratio in Angle's Class III malocclusion is lesser than normal occlusion.

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상하악 치조전돌증의 양악 분절골절단 수술후 경, 연조직 변화에 관한 연구 (SOFT HARD TISSUE CHANGES FOLLOWING ANTERIOR SEGMENTAL SURGERY IN BIMAXILLARY PROTRUSION)

  • 송재철;진병로
    • Maxillofacial Plastic and Reconstructive Surgery
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    • 제19권3호
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    • pp.250-259
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    • 1997
  • The purpose of this study was to evaluate the interrelationship of the soft and hard tissue changes after both maxillary and mandibular anterior segmental surgery in bimaxillary protrusion patients. 11 patients had received both maxillary and mandibular anterior segmental surgery and were investigated radiologically with lateral cephalogram. The results were as follows : 1. The correlation of maxillary hard and soft tissue horizontal changes were relative high. : Coefficient between UIE and Stms was 0.89 (p<0.001). 2. The correlation of mandibular hard and soft tissue horizontal changes were very high, especially at the chin. : Coefficients were over 0.90 (p<0.001) 3. All points were moved superiorly except SLS, LS, Stms. 4. Upper and lower lip convexity to the E-Line were decreased (p<0.001) and postsurgical facial profiles were changed very esthetically.

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양악치성전돌증의 교정치험예 (A CASE REPORT OF ORTHODONTIC TREATMENT OF BIMAXILLARY DENTAL PROGNATHISM)

  • 성재현
    • 대한치과의사협회지
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    • 제16권5호통권108호
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    • pp.395-399
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    • 1978
  • The patient, 21 years and 3 months female, complained of protrusion of lower face. There was severe procumbency of upper & lower anterior teeth. Cephalometric analysis revealed that the anteroposterior jaw relationship was normal, but the teeth was foreward on their respective basal bones, so diagnosed as bimaxillary dental prognathism. The patient underwent extraction of four Ist premolar and was treated with multibanded & direct bonding system. After 14 months, She gained good interdigitation of buccal segment and attractive facial profile.

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