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1041.

Effects of continuous force application for extrusive tipping movement on periapical root resorption in the rat mandibular first molar

Yoshiro Matsumoto, Siripen Sringkarnboriboon, Takashi Ono 대한치과교정학회 The Korean Journal of Orthodontics 7 Pages

대한치과교정학회 The Korean Journal of Orthodontics 2018, 제 48권 제 5호 8 339-345 (7 pages)

Yoshiro Matsumoto, Siripen Sringkarnboriboon, Takashi Ono 저
...
- 무료
Objective: The purpose of this study was to clarify the effects of continuous force application for extrusive tipping movement and occlusal interference on periapical root resorption in the rat mandibular first molar. Methods: We constructed an appliance comprising a titanium screw implant with a cobalt– chromium post as the anchorage unit and a nickel–titanium closed coil spring (50 cN) as the active unit. Force was applied on the mandibular left first molar of rats for 8 (n = 10)...
1042.

Evaluation of buccolingual molar inclinations among different vertical facial types

Feyza Eraydin, Derya Germec Cakan, Murat Tozlu, Fulya Ozdemir 대한치과교정학회 The Korean Journal of Orthodontics 6 Pages

대한치과교정학회 The Korean Journal of Orthodontics 2018, 제 48권 제 5호 7 333-338 (6 pages)

Feyza Eraydin, Derya Germec Cakan, Murat Tozlu, Fulya Ozdemir 저
...
- 무료
Objective: The aim of this study was to compare the buccolingual inclination of maxillary and mandibular molars in adults with different vertical facial types. Methods: Cone-beam computed tomography images of 135 adult patients (age, 20–45 years) with skeletal Class I maxillomandibular relationships were assigned to normodivergent (n = 46), hypodivergent (n = 49), and hyperdivergent groups (n = 40) according to linear and angular sella-nasion/gonion-menton measurements. The normodivergent...
1043.

Pain perception among patients treated with passive self-ligating fixed appliances and Invisalign？？ aligners during the first week of orthodontic treatment

Naif N. Almasoud 대한치과교정학회 The Korean Journal of Orthodontics 7 Pages

대한치과교정학회 The Korean Journal of Orthodontics 2018, 제 48권 제 5호 6 326-332 (7 pages)

Naif N. Almasoud 저
...
- 무료
Objective: This study was performed to compare the perception of pain between patients treated with passive self-ligating fixed appliances and those treated with Invisalign aligners. Methods: This prospective study conducted in Saudi Arabia used an estimated sample of 64 patients from a private dental clinic. After obtaining written informed consent, the patients were divided into two groups; one group (n = 32) was treated using passive self-ligating fixed appliances and the other group (n = 32)...
1044.

Displacement and stress distribution of the maxillofacial complex during maxillary protraction using palatal plates

Jusuk Eom, Mohamed Bayome, Jae Hyun Park, Hee Jin Lim, Yoon-Ah Kook, Seong Ho Han 대한치과교정학회 The Korean Journal of Orthodontics 12 Pages

대한치과교정학회 The Korean Journal of Orthodontics 2018, 제 48권 제 5호 4 304-315 (12 pages)

Jusuk Eom, Mohamed Bayome, Jae Hyun Park, Hee Jin Lim, Yoon-Ah Kook, Seong Ho Han 저
...
- 무료
Objective: The purpose of this study was to analyze initial displacement and stress distribution of the maxillofacial complex during dentoskeletal maxillary protraction with various appliance designs placed on the palatal region by using three-dimensional finite element analysis. Methods: Six models of maxillary protraction were developed: conventional facemask (Type A), facemask with dentoskeletal hybrid anchorage (Type B), facemask with a palatal plate (Type C), intraoral traction using a...
1045.

Histomorphometric evaluation of the bone surrounding orthodontic miniscrews according to their adjacent root proximity

Hyun-Ju Oh, Jung-Yul Cha, Hyung-Seog Yu, Chung-Ju Hwang 대한치과교정학회 The Korean Journal of Orthodontics 9 Pages

대한치과교정학회 The Korean Journal of Orthodontics 2018, 제 48권 제 5호 2 283-291 (9 pages)

Hyun-Ju Oh, Jung-Yul Cha, Hyung-Seog Yu, Chung-Ju Hwang 저
...
- 무료
Objective: This study was conducted to perform histomorphometric evaluations of the bone surrounding orthodontic miniscrews according to their proximity to the adjacent tooth roots in the posterior mandible of beagle dogs. Methods: Four male beagle dogs were used for this study. Six orthodontic miniscrews were placed in the interradicular spaces in the posterior mandible of each dog (n = 24). The implanted miniscrews were classified into no loading, immediate loading, and delayed loading groups...
1046.

EFFECTS OF SEVERAL CYTOKINES ON THE FUNCTIONS OF FETAL RAT OSTEOBLAST-LIKE CELLS IN VITRO

Hee-Sung Han, Jung-Keun Kim, Young-Il Chang 대한치과교정학회 The Korean Journal of Orthodontics 8 Pages

대한치과교정학회 The Korean Journal of Orthodontics 1995, 제 25권 제 6호 4 689-696 (8 pages)

Hee-Sung Han, Jung-Keun Kim, Young-Il Chang 저
...
- 무료
of lysosomal enzyme, fetal rat osteoblast-like cells were treated with IL-1β, TNFα, and IFNγ, respectively or combined. And acid phosphatase was determined by biochemical method. Alkaline phosphatase was assayed to determine the effects of IL-1β, TNFα, and IFNγ on the expression of this enzyme. And also experiment of calcified nodule formation was performed to assess the effects of cytokines on the bone-forming activity of osteoblast-like cells in vitro. Acid...
1047.

CEPHALOMETRIC STUDY OF OBSTRUCTIVE SLEEP APNEA PATIENTS IN THE UPRIGHT AND SUPINE POSITIONS

Jong-Chul Kim, Alan A Lowe 대한치과교정학회 The Korean Journal of Orthodontics 10 Pages

대한치과교정학회 The Korean Journal of Orthodontics 1995, 제 25권 제 6호 1 655-664 (10 pages)

Jong-Chul Kim, Alan A Lowe 저
...
- 무료
Sixty male patients with polysomnographically documented OSA were included in this study. A pair of cephalograrns were obtained in the upright and supine positions. In the supine position, the ANB angle, lower facial height and the cross-sectional area of soft palate increased and there was a decrease in the vertical airway length and oropharynx cross-sectional area. Positional changes did not affect the cross-sectional area of tongue, but the cross-sectional area of the oropharynx decreased in...
1048.

A comparison study of the effects of nasal breathing dysfunction due to adenoid obstruction on dentition by facial type

Hee-Kyung Lee 대한치과교정학회 The Korean Journal of Orthodontics 9 Pages

대한치과교정학회 The Korean Journal of Orthodontics 1996, 제 26권 제 6호 1 647-655 (9 pages)

Hee-Kyung Lee 저
...
- 무료
In discussing the effects of adenoids on the development of the face and dentition, it is important to note their influence on the mode of breathing and to relate this to specific facial types and dentition. This study, therefore, assumed that the ability to adapt to individual`s neuromuscular complex is various. And tried to investigate the effects of reduced nasal respiratory function on the development of dentition by facial type. This paper is based on children patients with enlarged...
1049.

기계적 자극이 MC3T3-E1 세포의 Alkaline Phosphatase Activitry에 미치는 영향

배성민(Sung-Min Bae), 경희문(Hee-Moon Kyung), 성재현(Jae-Hvun Sung) 대한치과교정학회 The Korean Journal of Orthodontics 9 Pages

대한치과교정학회 The Korean Journal of Orthodontics 1996, 제 26권 제 3호 7 291-299 (9 pages)

배성민(Sung-Min Bae), 경희문(Hee-Moon Kyung), 성재현(Jae-Hvun Sung) 저
...
- 무료
교정력은 치아이동과 악골성장을 조절하는 기계적 자극이며, 이러한 기계적 자극에 골세포가 반응하므로써 치조골과 악골의 개조가 일어난다. 이러한 기계적 자극은 크게 압축력과 인장력으로 대별된다. 따라서 본 연구는 인장력 및 압축력의 서로다른 기계적자극이 세포활성에 미치는 차이를 알아보기 위하여 조골세포주 MC3T3-E1세포를 24well 배양접시에 well당 2×104개의 세포를 넣어 배양한 후, 밀생상태가 되었을때 Diaphragm pump을 사용하여, 25g/cm² 및 300g/cm²의 압축력과 -25g/cm² 및 -300g/cm²의...
1050.

골격성 Ⅲ급 부정교합자의 편악수술과 양악수술시 술후동태에 대한 비교연구

최양숙(Yang-Sook Choi), 손우성(Woo-Sung Son) 대한치과교정학회 The Korean Journal of Orthodontics 17 Pages

대한치과교정학회 The Korean Journal of Orthodontics 1997, 제 27권 제 2호 11 297-313 (17 pages)

최양숙(Yang-Sook Choi), 손우성(Woo-Sung Son) 저
...
- 무료
본 연구는 부산대하교병원 치과교정과에 내원하여 교정 및 악교정수술 복합치료를 시행받은 환자 총 42명중 하악에만 수술을 받은 환자 18명과 상하악에 동시에 수술을 받은 환자 24명을 대상으로 하였으며 초진, 수술전, 수술직후, 수술 6개월 경과후의 측모두부방사선 규격사진을 채득하고 투사도를 작성하여 계측하였다. 골격, 치아 및 연조직에 대한 분석을 통하여, 수술후 경조직 변화에 따른 연조직 변화를 편악수술군과 양악수술군에서 비교하여 술전교정치료에 지침이 될 수 있는 상하악절치의 경사도에 대해 연구하여 다음의...

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