• Title/Summary/Keyword: Headgear

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Effectiveness of en-masse retraction using midpalatal miniscrews and a modified transpalatal arch: Treatment duration and dentoskeletal changes

  • Lee, Jungkil;Miyazawa, Ken;Tabuchi, Masako;Sato, Takuma;Kawaguchi, Misuzu;Goto, Shigemi
    • The korean journal of orthodontics
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    • v.44 no.2
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    • pp.88-95
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    • 2014
  • Objective: The purpose of this study was to compare the treatment duration and dentoskeletal changes between two different anchorage systems used to treat maxillary dentoalveolar protrusion and to examine the effectiveness of en-masse retraction using two miniscrews placed in the midpalatal suture. Methods: Fifty-seven patients (9 men, 48 women), who had undergone level anchorage system treatment at Aichi-Gakuin University Dental Hospital (Nagoya, Japan) were divided into two groups according to the method of maxillary posterior anchorage reinforcement: midpalatal miniscrews (25 patients, mean age 22 years) and conventional anchorage (32 patients, mean age 19 years). The en-masse retraction period, overall treatment duration, pre-treatment effective ANB angle, and change in the effective ANB angle were compared with an independent-samples t -test. Results: Compared to the headgear group, the duration of en-masse retraction was longer by approximately 4 months in the miniscrew group (p < 0.001). However, we found no significant difference in the total treatment duration between the groups. Moreover, a greater change in the effective ANB angle was observed in patients treated with miniscrews than in those treated with the conventional method (p < 0.05). Conclusions: The level anchorage system treatment using miniscrews placed in the midpalatal area will allow orthodontists more time to control the anterior teeth during en-masse retraction, without increasing the total treatment duration. Furthermore, it achieves better dentoskeletal control than does the conventional anchorage method, thereby improving the quality of the treatment results.

A Study on Clothing Names in Sino-Korean Study Books in Choseon Period (조선시대 아동용 한자 학습서를 통해 본 복식명칭 연구)

  • 김은정;강순제
    • Journal of the Korean Society of Costume
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    • v.54 no.4
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    • pp.97-111
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    • 2004
  • To study the clothing names has been one of the research subjects in the history of clothing since the name could be the basic tool to understand the clothing. In the past, the name of clothing were used in Chinese character which is hieroglyphic. Each character of Chinese has special meaning. They had been changed into Korean after Korean characters were invented. During the period when they were changed into Korean, some of them retained the original meaning while others widened the original meaning. Some of them even translated into totally different meaning. Accordingly, it could be a clue to survey the changing process of Chinese names into Korean by analysing the vocabulary in the books published in Choseon dynasty. In this study, the first step is to survey the children's Chinese vocabulary learning material, Hunmongahoe(1527), Sinzeungliuhap(1576) and Ahackpyun(1804). These books were widely used from 16 to 19 centuries. It has been surveyed how the meaning of clothes names has changed and the special features of changed names. The names appeared in these Chinese vocabulary learning books included headgear, footwear, dress, part names of dress, ornaments, color and names of textile. The followings are observed by studying the names appeared in more than two books above: 1. The same Chinese character were translated differently. 2. Recently the meaning of Chinese character has been reduced or changed into new Chinese character. 3. Some of them retained the same meaning but used different character. It has been observed that some clothing names retained the original meaning but others changed the meaning, or translated into different names. It shows that the appropriate meaning of names should be properly selected when we study the history of clothing.

A Study on Clothing Terms in the foreign language study books of the Joseon Period (조선시대 외국어학습서를 중심으로 본 복식명칭 연구)

  • Kim Eun-Jung;Kang Soon-Che
    • Journal of the Korean Society of Costume
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    • v.56 no.6 s.105
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    • pp.72-86
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    • 2006
  • The study aimed to materialize the meaning of the names through analyzing names that have synonyms and ambiguous words. The subjects of the study are seven foreign language study books such as $\ll$譯語類解 Yeokeoyuhae $\gg$ $\ll$譯語類解補編 Yeokeoyuhae - supplementary book$\gg$, $\ll$同文類解 Dongmunyuhae$\ggl$, $\ll$象語類解 Mongeoyuhae$\gg$, $\ll$象語類解補編 Mongeoyuhae- supplementary book$\gg$, $\ll$俊語類解 Oaeeoyuhae$\gg$ and $\ll$方름類釋 Bangeonyuseok$\gg$. The study selected vocabularies related with headgear, socks, clothing from those vocabulary books. The results are as follows: 1. The result focusing on the same Chinese terms in multiple forms has shown that '帽子(Moja), 斗逢(Dubong), 頭面(Dumyen), 襪(Mal), 木?(Mokgeuk),  據子(Nanmalja), 樓子(Oja), 小樓子(Sooja), 養衣(Saui), 團領(Danlyeng), 掛子(Goija), 齊肩掛(Jegyengae), 彩兒(Sama), 單補(Dango)' have differences in Korean annotations, and it has been found that these differences are spelt as synonyms in general. 2. The result focusing on the same Korean terms in multiple forms has shown that Gamto, Gat, Satgat, Bolkki, Gatmo, Neoneol, Gatdongot, Ddambatgijeoksam, Nuyeok, Tyeollik, Goui, Baji, Gatdongot, Hatot, Dongdoljji, Yusam, Chima and ete. have 2 or more Chinese spellings. Among these, Neoneol, Ddambatgijeoksam, Nuyeok, Tyeollik, and etc. seem to have used similar Chinese spellings, and Gat, Dongdoljji, and etc. seem to have used Chinese spellings according to the multiple forms in each country. 3. There have also been records of terms seldom used at present such as Dalogi, Neoneol, and etc., and it has been found that Mahulae, Doljji, Dunja, and etc. are the terms have been geographically influenced by the northern race as they have been left as a dialect in North Korea currently. 4. Mahulae, Kulimae, Neolku, and etc. may be inferred as they have originated from Manchu language through pronunciation of each country spelt in translated books.

A Study on Tibetan Folk Costume on the Stage - Focused on the CCTV Spring Festival Gala - (중국 티베트족 공연의상에 관한 연구 - CCTV 춘절 특집 프로그램을 중심으로 -)

  • Qiao, Dan;Soh, Hwang-Oak
    • Journal of the Korean Society of Costume
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    • v.60 no.9
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    • pp.26-40
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    • 2010
  • The purpose of this study is the Tibetan folk costumes'characteristics and change of design in stage. The subjects are the Tibetan costumes in the Spring Festival Gala of CCTV. The basic characteristics of Tibetan folk costumes are fat waist, long sleeves, overlap, and right ren. Tibetan costumes consist of Tibetan gowns, aprons, shirts, belts, Tibetan hats, headgear, ornaments, all of these compose the traditional image of the Tibetan people. Because of the long-term closed survival, the development of Tibetan costumes has no much vertical differences and changes. The costumes of Weizang(衛藏), Ali(阿里), Gongbu(工布), Kham(康巴), Amdo(安多) have different features which are divided according to different dialects. Study the changes of design Tibetan stage costumes from 25times, we can get that during the 1986~1992, people emphasis on the activities of dancers, styles are simple, just to grasp the characteristics of the Tibetan costumes. In the 1993~1999, the dancers put on the real-life Tibetan clothing on stages. By the 2000s to now, Tibetan stage costumes have much more changes in forms and colors which are more complete and complex. The types of Tibetan costumes include Tibetan all clothing, they all express the changed forms and colors without exception. So in this period are artistic Tibetan folk costumes.

Types and formative characteristics of the costumes worn by Northeastern Chinese minorities - Focusing on Daur, Ewenki, Oroqen and Hezhen - (중국 동북부 지역 소수민족 복식의 유형과 조형적 특성- 다우르족, 어원커족, 어르첸족, 허저족을 중심으로 -)

  • Seiyoung Park;Dong-Eun Kim;Jiyeon Kim
    • The Research Journal of the Costume Culture
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    • v.31 no.6
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    • pp.776-792
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    • 2023
  • This study aims to analyze the traditional attire of four ethnic minority groups in Northeastern China: Daur, Ewenki, Oroqen, and Hezhen, considering their natural environment, lifestyles, and cultural influences. A literature review of academic papers, books, and online resources was conducted, along with indirect investigations through artifacts. The Daur people, being equestrian, have garments with deep slits, vibrant colors, and elaborate decorations. The Ewenki people wear clothes made of fabric in the summer and primarily deer skin in the winter, and their clothing is simple and not flashy. The Oroqen people's clothing typically has slits at the front, back, or on both sides, and they wear a waist belt. The Hezhen people, an ethnic group that primarily hunts and fishes, wear two-piece clothing with a hip-length top and pants or other fur-trimmed garments. All groups incorporate symbolic patterns influenced by Shamanism, along with animal headgear and leather shoes. We observed that the traditional costumes of ethnic minority groups in Northeastern China share many commonalities in form, but there are detailed differences in material, shape, color, and decoration due to unique geographical and climatic characteristics as well as differences in livelihood. Additionally, the structure of clothing varies depending on each tribe's shamanistic practices and lifestyle.

A STUDY OF HOLOGRAPHIC INTERFEROMETRY ON THE INITIAL REACTION OF MAXILLOFACIAL COMPLEX TO THE MAXILLARY PROTRACTION USING THE ANTENNA TYPE MODIFIED PROTRACTION HEAD GEAR (Modified Protraction Headgear를 이용한 상악골 전방 견인시 악안면골의 초기반응에 관한 Holographic Interferometry 연구)

  • Lee, Kong-Geun;Ryu, Young-Kyu
    • The korean journal of orthodontics
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    • v.22 no.3 s.38
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    • pp.531-556
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    • 1992
  • The majority of the commonly used protraction headgears for the protraction of small and/or retropositioned maxilla not allow a change in the point of force application or direction of the force delivery to attain predictable results because of the position of the upper and lower lips to avoid discomfort to the patient. The purpose of this study was to investigate the initial reaction of maxillofacial complex according to the change of force variables such as direction and point of force application with designing an antenna type-modified protraction head gear. A macerated human skull with well aligned upper teeth was used to experimental model and the investigation was done by double exposure holographic interferometry. Fringe patterns of each protraction conditions were compared and analized. The results were as follows. (Frontal view) 1. The Counterclockwise rotation of the maxilla was showed by parallel protraction to occlusal plane and the fringe was decreased in number as higher point of force application. 2. Generally, the number of fringe was increased in 500gm of protraction force than in 300gm. 3. When apply the protraction force to the maxilla with rapid palatal expansion, the direction of fringe patterns was differed from the protraction without expansion. 4. In most of cases, the counterclockwise rotation was decreased in case of the direction of the force is $20^{\circ}$ downward to occlusal plane compared to the parallel direction. 5. At the point of force application is 15mm above and the direction of force is 20 downward to occlusal plane , the translation of the maxillary complex was showed. (Lateral view) 6. The direction of fringe patterns of the facial bones were differed each other by the sutures, and showed almost parallel when apply the 300gm and 500gm of protraction force. 7. In case of rapid palatal expansion with protraction of the maxilla, the fringe patterns between the maxillary area and the area from the posterior of the maxillary first molar to the pterygomaxillary fissure were differed. In case without rapid palatal expansion, the changes of direction and point of the force application did not affect to the direction and the number of the fringe patterns.

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A Study about Current Putting on a Shroud (현행(現行) 수의(壽衣) 착의법(着衣法) 관(關) 연구(硏究))

  • Nam, Min-Ye;Baik, Young-Ja
    • Journal of Fashion Business
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    • v.3 no.2
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    • pp.85-90
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    • 1999
  • A shroud is clothes for giving a dead person a bath and being finely dressed:though our routine clothes have been western, putting on a shroud has been kept comparatively well as a tradition of a conventional ceremony garments. This study is about the current using of dressing a shroud, and for presenting foundations of a way about dressing a shroud in order to make the most of this by everyone, therefore this research will be worthwhile to preserve the traditional custom of giving a dead person a bath and being finely dressed. 1. We must confirm the death of a person before we do Su-Si for controlling rightly a corse. Su-Si is ways of changing a clean clothes after bathing the dead person, tieing up hands, feet and ankles with a string, filling up a mouth, a nose and ears with a wad of cotton, laying down the dead person with his head toward east, and setting up a screen after covering the dead person with a bed sheet. 2. Here are processes of putting on a shroud. After the day of death, first of all, you must untie the string to control rightly a corpse, take off the clothes, and give a dead man a bath. You trim the dead person's fingernails and toenails, put them in O-nang, then put his hands and feet in five pouches, finally put feet in korean socks and wrap with Ak-su. You put a underwear in a overwear in order to put on the clothes easily, and then put on an upper garments after putting on trousers. And put on Sb-sin After you wash the dead person's face and his hair, you put gems and raw rice in his mouth, wrap head with cotton fabrics, and put hairs into five pouches, then put on a headgear which is filled with five pouches. 3. You tie up with hem cloth the dead person dressed a shroud after wrapping with Dae-ryum-km and So-ryumkm. 4. After you encoffin the dead person, you weave coffin strings with cotton fabrics in order to lift up the coffin easily, and lay down a red fabrics having white letters about the dead person's name or social position onto the coffin, then cover the coffin with a coffin cover : finally you leave the coffin at the former place and set up screen.

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Directional forces using skeletal anchorage for treatment of skeletal Class II div. 1 malocclusion (Directional force와 skeletal anchorage를 이용한 골격성 II급 1류 부정교합 환자의 치험례)

  • Chae, Jong-Moon
    • The korean journal of orthodontics
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    • v.34 no.2 s.103
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    • pp.197-203
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    • 2004
  • Tweed-Merrifield directional force technology is a very useful concept, especially for the treatment of Glass II malocclusion. It has contributed to treating a favorable counter-clockwise skeletal change and balanced face, while head gear force using high pull J-hook (HPJH) in an appropriate direction is also essential to influence such results. Clinicians have encountered some problems concerning patients' compliance; however skeletal anchorage has been used widely of late because it does not necessitate patients' compliance, yet produces absolute anchorage. In this case, a good facial balance was obtained by Tweed-Merrifield directional force technology using HPJH together with skeletal anchorage, which provided anchorage control in the maxillary posterior area, torque control in the maxillary anterior area, and mandibular response. This indicates 4hat skeletal anchorage can be used to reinforce sagittal and vortical anchorage in the maxillary posterior area during the retraction of anterior teeth. The author used HPJH for torque control, Intrusion, and the bodily movement of maxillary anterior teeth during on masse movement. However, it is thought that such a result nay also be achieved by substituting mini- or microscrews for HPJH. Consequently, Tweed-Merrifield directional force technology using skeletal anchorage for the treatment of Class II malocclusion not only maximiaes the result of treatment but can also minimize patients' compliance.

A CASE OF PERVASIVE DEVELOPMENTAL DISORDER NOS WITH REPETATIVE SELF-INJURIOUS BEHAVIOR (반복적으로 머리를 때리는 전반성발달장애 환아 1례)

  • Kim, Jeong-Lim;Chung, Bo-In;Cho, Soo-Churl;Hong, Kang-E;Lim, Myung-Ho
    • Journal of the Korean Academy of Child and Adolescent Psychiatry
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    • v.10 no.2
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    • pp.244-251
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    • 1999
  • Self-injurious behavior is often showed in mental retardation, especially in autism. Self-injurious behavior has been regarded as a symptom cluster rather than a disease but it is an emergent clinical situation that can directly affect mortality. This case is about a refractory autistic patient who showed a self-injurious behavior of hitting the head repetitively. He was hospitalized and was treated by pharmacotherapy and behavior therapy and for this reason this clinical experience is reported with literature review. The patient is a 7-year old boy who was ward admitted from 1999 April 20 till July 10 into OO hospital OO ward because of self-injurious behavior. During the 12 weeks he had admission treatment. As for the pharmacotherapy, haloperidol was dosed up from 0.5mg to 1.0mg from the 4th week and combination drug therapy was done during the admission with naltrexone 25-50mg. As for the behavioral therapy, Differential Reinforcement of Other behavior was used and regular play therapy was done. To remove the physical restraint, headgear and hard sleeve was used. Currently, OPD follow up treatment is being done and haloperidol 0.5mg and naltrexone 50mg is maintained. The patient’s mother is educated and play therapy is done an hour daily at home. When the patient was released form the hospital, self-injurious behavior was decreased more than the moderate state and remission state is still being maintained at the outpatient clinic.

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THREE DIMENSIONAL FINITE ELEMENT ANALYSIS OF THE PHENOMENON DURING DISTAL EN MASSE MOVEMENT OF THE MAXILLARY DENTITION (상악 치열의 치군 후방이동에 관한 3 차원 유한요소법적 연구)

  • Shin, Soo-Jung;Chang, Young-Il
    • The korean journal of orthodontics
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    • v.28 no.4 s.69
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    • pp.563-580
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    • 1998
  • This study was designed to analysis the displacement and stress distribution of individual tooth by orthodontic force during distal on masse movement of the maxillary dentition. In this study, three dimensional finite element analysis was used. Author made the finite element model of maxillary teeth, periodontal ligament, alveolar bone and bracket with anatomic and physiologic characteristics on computer. Author analysed and evaluated the displacement and stress distribution of individual tooth when extraoral force, Class II intermaxillary elastics, ideal arch wire, MEAW and tip back bend were used for distal on masse movement of the maxillary dentition. These analyses were also applied in the case of the maxillary second molar were not extracted. Author compared the results of the cases which maxillary second molar were extracted or not. The results were expressed quantitatively and visually. Author obtained following results, 1. When anterior headgear was applied, the posterior translation, posterior tipping, and vertical displacement of teeth were produced more in the anterior segment of the dentition. 2. When Class II intermaxillary elastics were applied in the ideal arch wire, the teeth displacement were usually produced in the anterior segment. But when tip back bend were added in the ideal arch wire, the orthodontic force produced by elastics were transmitted to the posterior segment. As increasing the tip back bend, posterior translation and lingual tipping of anterior teeth were decreased, posterior translation and tipping displacement of posterior teeth were increased, and extrusion of anterior teeth by Class II elastics were decreased 3. When MDAW and Class II elastics were applied, the teeth movement were sir flu with the case of ideal arch wire and Class II elastics, but more small and uniform teeth displacement were produced Compared with the ideal arch wire, posterior tipping of the posterior segment were more produced than lingual tipping displacement of the anterior segment. 4. When the maxillary second molar without orthodontic appliance existed, the displacement of maxillary first molar were decreased.

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