• Title/Summary/Keyword: cross-bite

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A CASE REPORT OF MANDIBULAR PROGNATHISM TREATED WITH ACTIVATIOR (Activator를 이용한 하악전돌 치험예)

  • Lim, Jin Hwan;Nahm, Dong Seok;Yang, Won Sik;Suh, Cheong Hoon
    • The korean journal of orthodontics
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    • v.6 no.1
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    • pp.65-69
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    • 1976
  • A patient (Hellman dental age IIIA) who had anterior cross bite due to functional factor was treated with activator. Following results were obtained: 1) Anterior cross bite was crorrected 3 months after the initial application of the appliance. 2) Comparing pretreatment records with posttreatment, the main effects were labioversion of upper incisors, increase of upper arch length and downward-backward rotation of the mandible. 3) There was no damage on teeth and periodontal tissues and the patient had normal occlusion 1 year after the treatment.

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A CASE REPORT OF MANDIBULAR PROGNATHISM TREATED WITH THE CHINCAP (신모에 의한 하악전돌증의 치험일예)

  • Nahm, Dong-Seok
    • The Journal of the Korean dental association
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    • v.16 no.9 s.112
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    • pp.689-693
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    • 1978
  • A girl (Hellman dental age IIC) with anterior cross bite was treated by means of the chincap and occlusal equilibration on deciduous canines. Following results were obtained; 1) The cross bite was corrected after 12 weeks of active treatment. 2) The terminal plane of deciduous molars had become 'a class II tendency' 3) The axial inclination of lower incisors were changed significantly.

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SURGICAL CORRECTION OF ANTERIOR SEGMENTAL OSTEOTOMY IN MANDIBULAR PROGNATHISM WITH ANTERIOR DEEP BITE (과개 교합을 동반한 하악전돌증의 하악 전치부 분절골 절단술을 이용한 외과적 교정)

  • Min, Seung-Ki
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.13 no.4
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    • pp.468-475
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    • 1991
  • Skeletal class III malocclusion with aterior deep bite is difficult to manage properly, especially in case of mild mandibular prognathism. We have designed lower anterior segmental osteotomy for improving the lower third of the facial contour. Considerable improvement of esthetic facial contour with correction of cross bite in anterior incisors was observed in patients with mandibular prognathism.

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A CEPHALOMETRIC STUDY ON THE HARD AND SOFT TISSUE CHANGES BY THE PAPID PALATAL EXPANSION IN ANGLE'S CLASS III MALOCCLUSION (상악골 급속확장에 의한 Angle씨 제 III급 부정교합 환자의 안모형태 변화에 관한 두부방사선 계측학적 연구)

  • Tahk, Seon Gun;Ryu, Young Kyu
    • The korean journal of orthodontics
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    • v.14 no.1
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    • pp.161-172
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    • 1984
  • This study was undertaken to evaluate the cephalometric changes of the soft tissue and skeletal profile subsequent 10 the rapid palatal expansion in 25 Angle's Class III cases, ranging in age from six to fifteen years, with cross-bite of the anterior teeth, underdevelopment of maxilla and facial disharmony Following results were obtained: 1. ANS moved downward, Point A presented forward & downward movement increasing SNA and Point B presented backward & downward movement decreasing SNB. 2. Mandible was rotated to backward & forward and maxilla moved forward & downward with the bite opening and improvement of anterior teeth cross-bite. 3. Soft tissue on mandible was rotated to backward & forward following hard tissue changes causing the decrease of facial convexity angle and backward & downward rotation of Point B', Pog'. 4. Response of the upper lip was more significant in downward than forward direction, and correlated with the upper central incisor and mandible rotation. 5. Response of the lower lip was more significant in downward than backward direction, and correlated with the mandible rotation. 6. There was a rather high degree of correlation between skeletal profile and soft-tissue profile, 1 : LS, $\bar{1}$:Pog', Pog:LS, Pog:LI, Pog:Pog' in horizontal measurements and $\bar{1}$:Pog', Pog:LI, Pog:Pog' in vertical measurements.

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하악 과두부에 발생한 종양의 외과적 치험 2례

  • Lee, Yong-Oh;Moon, Seon-Hye;Jang, Sae-Gyoung
    • The Journal of the Korean dental association
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    • v.24 no.5 s.204
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    • pp.439-447
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    • 1986
  • The occurrence of osteochondroma, osteoma in mandibular condlye is rare. Sign and symptoms of enlargement of condyle are open bite, cross bite, myofascial symptoms, facial asymmetry. They are treated via condylectomy, subcondylar ostetomy, etc. We treated osteochondroma with condylectomy, osteoma with condylectomy & arthroplasty with titanium mesh & resin ball. Followings are the results 1. Condylectomy of osteochondroma resulted in good function & esthetics except slight deviation of mandible to the operation side during mouth opening. 2. Condylectomy & arthroplasty with titanium mesh & resin ball resulted in good function & esthetics & no deviation of mandible.

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THE TREATMENT OF AN ANTEIOR CROSS-BITE WITH THE ERUPTION OF A MAXILLARY INCISOR USING $FR\ddot{A}NKEL$ III : CASE REPORT (상악중절치 맹출시기의 $Fr\ddot{a}nkel$ III를 이용한 전치부 반대교합의 치험례)

  • Lee, Sang-Youp;Kim, Hyun-Jung;Nam, Sun-Heun;Kim, Young-Jin
    • Journal of the korean academy of Pediatric Dentistry
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    • v.26 no.2
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    • pp.323-330
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    • 1999
  • It is well recognized that a cross-bite tends to occur more frequently among Japanese, Chinese and Koreans more than among Europeans. A variety of functional appliances have already invented for the treatment of cross-bites. One of them is the FR III(by Rolf $Fr\ddot{a}nkel$) which applies a quite different philosophy based on the using vestibular region compared with other methods which utilize muscular forces applied directly on the teeth. The FR III also increases both the lack of muscular tension against the dental arch and the dentition and muscular forces which can then influence the teeth indirectly. This mechanism can achieve favorable developments with the basal bone, teeth, and alveolar bone. After using FR III to the anterior cross-bite patient with the eruption of a maxillary incisor the results were as follows: 1. Forward growth of maxilla and proclination of the upper incisor 2. Downward and backward rotation of the mandible 3. Increase the facial height 4. The case which was normal mandible, underdevelopmental maxilla, deeper overbite and more nagative overjet exhibited good prognosis

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KNOWLEDGE OF ORTHODONTICS AND MALOCCLUSION (교정과 부정교합에 대한 지식에 관한 조사)

  • Lee, Won-You;Kim, Hyung-Don;Han, Bu-Suk
    • The korean journal of orthodontics
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    • v.22 no.4 s.39
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    • pp.815-822
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    • 1992
  • Orthodontists want why the patients want orthodontic treatment. Demand and need for orthodontics is very important factors of cooperation and management. Chief complaint would be different according to the race and culture. Our results show that in the control group, Korean female adolescents[chief complaint is cowding$(30.6\%)$, spacing$(26.5\%)$, upper anterior protrusion$(18.4\%)$, anterior cross bite$(8.2\%)$ in order. Korean female adolescents considered anterior cross bite is more nonacceptable than spaeing and anterior protrusion. The purpose of orthodontics seemed to enhance esthetic, dental health, and to improve oral function.

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Unilateral Segmental Palatal Distraction in Unilateral Cleft Lip and Palate Patient (편측성 구순구개열 환자에서의 편측성 분절 구개골 신장술)

  • Baek Seung-Hak;Kim Na-Young;Choi Jin-Young
    • Korean Journal of Cleft Lip And Palate
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    • v.6 no.1
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    • pp.43-51
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    • 2003
  • Patients with unilateral cleft lip and palate (UCLP) usually present unilateral cross bite due to collapse of the maxillary minor segment. Unequal expansion of the palate is needed to resolve this problem in UCLP patient. Unilateral segmental palatal distraction (USPD) after Le Fort I osteotomy and the oblique placed orthodontic expansion screw (Hyrax) can be used to correct the unilateral cross bite. 1his case report describes the effects of USPD of the collapsed maxillary minor segment on patient with unilateral cleft lip and palate.

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A Case Report of Orthodontic Treatment of Reverse Occlusion (Reverse Occlusion의 교정치험례)

  • Chang, Young-Il;Rhee, Byung-Tae;Suh, Cheong-Hoon
    • The Journal of the Korean dental association
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    • v.17 no.5 s.120
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    • pp.345-350
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    • 1979
  • The patient, 16 years female, complained of anterior cross-bite and retrusion of maxilla. Mandibular incisors occluded labially to maxillary incisors. Normally developed mandibular arch in normal elation to facial line, S-N-Pog was within normal range. Cross-bite of anterior teeth was corrected by means of Class III elastics under multibanded system. Space for alignment of crowding of upper anterior teeth was regained by means of cervical headgear and sliding yoke. She gained good alignment of anterior teeth and attractive facial profile after 2 years.

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