• The Journal of the Korean dental association
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• v.21 no.6 s.169
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• pp.459-462
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• 1983

교합의 부조화는 외상성교합을 야기시킬 뿐만 아니라 치태의 침착을 용이하게 하며 일단 침착된 치태의 제거에도 애로점이 있고 외과적으로 치주낭을 제거하기 위한 술식을 적용할 때에도 문제점이 있다. 따라서 교합의 부조화를 치료해주는 교합치료는 완벽한 치주처치를 위한 중요한 한 분야이다. 특히 치주과 영역에서 외상성교합의 처치는 필수적이며, 그 방법도 대단히 다양하다. 외상성 교합의 증상에 따라서 치료방법을 선택하자면 다음과 같다. 우선 치은조직에 치은퇴축 혹은 형태의 이상이 야기되었을 때에는 이에 따라 외과적인 처치가 선행되어야 함은 물론이며 다음 단계가 치아의 위치이상을 교정적인 처치를 통하여 정복하거나 동요치를 안정시켜줄 필요가 있으며 또한 정확한 교합조정술이 필요하다. 교합조정술에 대한 제반 사항과 술식에 대하여는 본지, 1982년도 6월호에 상세히 언급되었으므로 본 원고에서는 교정적인 처치방법과 치주고정장치의 적용에 대하여 기술 하고자 한다.

• Journal of the korean academy of Pediatric Dentistry
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• v.42 no.4
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• pp.319-326
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• 2015

Short root anomaly (SRA) is very rare, but can be problematic for physicians because patients with SRA are more vulnerable to root resorption with orthodontic forces. During the mixed dentition period, it may be difficult to diagnose generalized SRA. This article reports the treatment of an orthodontic patient with SRA at the early mixed dentition stage. Despite local tooth loss, a relatively favorable outcome was obtained without excessive root resorption. Ultimately, orthodontic therapy is possible for patients with generalized SRA, but precautions should be taken to avoid complications, such as tooth loss or root resorption.

• 대한치과교정학회:학술대회논문집
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• 2000.11a
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• pp.56.2-56.2
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• 2000

• 대한치과교정학회:학술대회논문집
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• 2002.11a
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• pp.19-19
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• 2002

• The Journal of the Korean dental association
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• v.35 no.2 s.333
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• pp.119-125
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• 1997

• Journal of the korean academy of Pediatric Dentistry
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• v.32 no.3
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• pp.437-443
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• 2005

Dilaceration is most common in maxillary central incisor. Impaction by dilacerated tooth cause orthodontic problem such as tilting of adjacent tooth, midline deviation. Dilaceration is caused by trauma, cyst, other origin and tooth shape, degree of root curvature, location in the alveolar bone, ability of spontaneous eruption should be considered whether treat or not. Labially and lingually dilacerated tooth is difficult to spontaneous eruption. Thus, Prosthetic treatment alternative with extraction, auto transplantation, orthodontic traction with surgical exposure is included within the treatment alternative. These cases are about impacted central incisor with dilacerated root. We use closed eruption technique and guide impacted tooth into normal position by orthodontic traction.

• Journal of the korean academy of Pediatric Dentistry
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• v.26 no.4
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• pp.644-651
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• 1999

It is a relatively common clinical experience to see an unerupted maxillary central incisor. This phenomenon is apparent at the dental age of almost eight years and over. Among the possible cause for failure of eruption, ectopic development of the tooth germ is mentioned. This is not fully understood but trauma or periapical imflammation of primary predecessors is accepted. The case with no history of trauma may be impacted by the periapical imflammation of primary predecessors. For bringing into the tooth eruption and the continued normal root developement by the Hertwig's epithelial root sheath, there are early considered of surgical invention and orthodontic traction with removable appliance. We reported successful treatment for inverted maxillary central incisor with proper eruption and normal root developement by forced eruption using removable appliance. But further observation will be required to evaluate the final root developement state and amount of keratinized attachment gingiva.

• The korean journal of orthodontics
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• v.30 no.3 s.80
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• pp.335-342
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• 2000

The authors observed the long term effects of chlorhexidine varnish treatment on microbial change of dental plaque in orthodontic patients with fixed appliances. The initial sample was 100 patients who were arranged to be treated with fixed orthodontic appliances. The final sample consisted of 21 patients who could be traced for 32 weeks after application of fixed orthodontic appliances. They were classified into the experimental group (12 patients) and the control group (9 patients). The experimental group was treated with chlorhexidine varnish once a week for 4 weeks before application of fixed orthodontic appliance. The control group was not treated with chlorhexidine varnish before application of fixed orthodontic appliance. The experimental group was treated once more after 20 weeks. The microbial changes of dental plaque were analysed by indirect immunofluorescence technique at pre-treatment, post-treatment 4, 8, 20, and 32 weeks. The results were as follows. 1. In the experimental group, streptococus mutans was significantly suppressed during experimental period. (p<0.01) But, in the control group, streptococcus mutans was significantly increased after placement of fixed orthodontic appliances during experiment period. (p<0.05) 2. Streptococcus sanguis, Streptococcus mitis, Actinomyces viscosus, md Actinomyces naeslundii did not show significant change between the experimental and the control group during experiment period. So, if we treat the orthodontic patients with chlorhexidine varnish before application of fixed appliances, we may suppress the major cariogenic bacteria, Streptococcus mutans, selectively for long period.

• Journal of Dental Rehabilitation and Applied Science
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• v.28 no.4
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• pp.407-421
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• 2012

Orthodontic problems of the oral maxillofacial area could be classified into skeletal and dental problems. Dental problems might cause various occlusal disharmony and among them congenital missing or eruption failure might cause not only functional problems but also esthetic problems. Additional psychological problems are also one of the reasons for patients seeking treatment. In cases showing eruption failure of many teeth in the maxilla, not only occlusal and esthetic problems but also difficulty in alveolar bone maintainment could occur. Therefore, successive approach is necessary when multiple teeth show eruption problems. In this case, a patient with eruption problems of #13, 12, 11, 23, 43 was successfully treated by surgical exposure and successive orthodontic extrusion resulting perfect occlusion. By additional periodontal treatment, gingival recession that occurred along with teeth eruption was solved. The impacted right mandibular canine was erupted successfully only by natural arch expansion and leeway space without any special surgical treatment.

• The Journal of the Korean dental association
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• v.22 no.12 s.187
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• pp.1039-1042
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• 1984