• The korean journal of orthodontics
• /
• v.18 no.1 s.25
• /
• pp.105-112
• /
• 1988

To predict duration of orthodontic treatment of malocclusion, 304 male and female patients whose orthodontic treatment was finished in department of orthodontics, Infirmary of dental college, Chosun University were studied. The duration of treatment was studied according to types of malocclusion, beginning ages of treatment, Hellman's dental ages, the determination of tooth extraction, types of tooth extraction and types of orthodontic appliance. The following results were obtained. 1. The duration of treatment was 18 months in Class I malocclusion, 20 months in Class II malocclusion and 24 months in Class III malocclusion. 2. The more early treatment was done, the more duration of treatment was needed according to beginning age of treatment and Hellman's dental ages. 3. Treatment of tooth extraction case was needed for 78 days more than that of non-extraction case. 4. The duration of treatment with unilateral extraction of premolars was the shortest (598 days) and that with single arch extraction of premolars was the longest (685 days) according to types of tooth extraction. 5. The duration of treatment by removable appliance was the shortest (237 days) and the combination of removable appliance, headgear and full banded appliance was the longest (1425 days) according to types of orthodontic appliance. 6. The duration of treatment was 18 months in typical orthodontic treatment with 4 extraction of premolar and full banded appliance.

• The Journal of the Korean dental association
• /
• v.39 no.2 s.381
• /
• pp.143-148
• /
• 2001

In patients with moderate crowding, the use of Pendulum appliance can be considered as one of intra-arch appliances. Its resolves the crowding by moving molars distally in the maxillary arch. The most important advantage of Pendulum appliance does not require patient cooperation at all. In this case we used a Pendulum appliane to resolve anterior crowding with a single-arch treatment in the maxillary arch.

• The Journal of the Korean dental association
• /
• v.27 no.11 s.246
• /
• pp.1014-1020
• /
• 1989

고정식 교정장치를 주로 사용하던 미국에서 최근 가철성 교정장치의 사용이 증가하고 있는데, 독일의 Rolf Frankel이 고안한 Frankel appliance(이하 FR)중 3급 부정교합의 치료를 위한 FR-3의 원리와 작용기전 그리고 임상적용에 관하여 기술하고자 한다.

• Journal of Technologic Dentistry
• /
• v.12 no.1
• /
• pp.5-14
• /
• 1990

The purpose of this study were to investigate the patterns of prosthetic restorations according to sex and age. We had surveyed the out-patents of dental clinics it Jeon-Ju, Iri and Gun roan area. The abtained result were as follow ; 1. The patterns of prosthetic restoration in female was higher than male and 20$\sim$30 age groups was higher than others. 2. The crown was higher in prosthetic restoration. 3. The procelain appliance area was high in male and female on 20$\sim$29 age. 4. The partial denture was higher than full denture in both sex. 5. The crown appliance area was not different in both sex. 6. The 3 unit bridge was higher than other bridge in both sex. 7. The porcelain appliance area was high in male and female on upper anterior. 8. The inlay appliance area of lower posterior was higher than upper posterior. 9. The upper posterior was high in male, and the lower posterior was high in female in partial denture. 10. The full dentur was high in old age group.

• Journal of the korean academy of Pediatric Dentistry
• /
• v.24 no.3
• /
• pp.637-649
• /
• 1997

Early orthodontic treatment in growing children requires the removable orthodontic appliances. The removable orthodontic appliance can be used in the primary dentition and mixed dentition. The purposes of use of removable orthodontic appliance in prmary dentition or mixed dentition are the interception of skeletal or dental malocclusion, guiding the normal dentition, and retention after comprehensive orthodontic treatment. Therefore, it is needed to use the removable orthodontic appliance in children with malocclusion. This report presents cases of growing children with skeletal class II and III malocclusion treated with removable orthodontic appliance during mixed dentition and Multiloop Edgewise Arch Wire(MEAW) during permanent dentition. The results obtained through these cases were summarized as follows : 1. Removable orthodontic appliances guide normal dentition and skeletal growth in growing children. 2. Removable orthodontic appliances play an important role in intercepting malocclusion in mixed dentition before use of fixed orthodontic appliance. 3. MEAW can be applied to finishing stage of all cases and is effective in correction of occlusal plane, achievement of interdigitation, and control of dental inclination. 4. It is needed that removable appliances are used during mixed dentition through correct diagnosis and fixed appliance are used in permanent dentition.

• The Journal of the Korean dental association
• /
• v.29 no.6 s.265
• /
• pp.407-409
• /
• 1991

• The Journal of the Korean dental association
• /
• v.29 no.5 s.264
• /
• pp.329-331
• /
• 1991

• The Journal of the Korean dental association
• /
• v.29 no.3 s.262
• /
• pp.180-181
• /
• 1991

• The Journal of the Korean dental association
• /
• v.16 no.10 s.113
• /
• pp.736-736
• /
• 1978

• The Journal of the Korean dental association
• /
• v.29 no.4 s.263
• /
• pp.248-249
• /
• 1991