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불화나트륨 이온도포와 Nd:YAG laser 조사가 치근면 내마모성에 미치는 영향
김진덕,염창엽,김송욱,김병옥,한경윤,Kim, Chin-Dok,Yum, Chang-Yup,Kim, Song-Uk,Kim, Byung-Ock,Han, Kyung-Yoon 대한치주과학회 1997 Journal of Periodontal & Implant Science Vol.27 No.4
The purpose of this study was to evaluate the abrasion-resistance of root surface after NaF iontophoresis, Nd:YAG laser irradiation and combined treatment 50 anterior teeth with flat interproximal root surface that had been extracted due to periodontal destruction were selected. All teeth were treated by the same procedure as conventional periodontal root treatment, such as scaling and root planing, root conditioning with tetracycline HCI(lOOmg/ml, 5min). The pre-treatment weight of each tooth was measured by a dial scale(SHIMADEU Co, LIBROR EB-220HU, capacity 220.000 g, Japan). All teeth were divided into 5 groups as follows: Nd:YAG laser irradiation(group 1, 1 W, 100 mJ, 10Hz, fiberoptic-root surface distance=5mm, $10\;sec.{\times}6times$, EL.EN.EN060, Italy): NaF iontophoresis(group 2, $150{\mu}A$, 4 min}: Nd:YAG laser irradiation following NaF iontophoresis(group 3): NaF iontophoresis following Nd:YAG laser irradiation(group 4): No treatment(control group). Electric toothbrushing (Oral-B, Brown Co, Germany) was conducted during 1 hour($lO\;min.{\times}6\;times$). Subsequently post-treatment weight was remeasured by the same method as pre-treatment weight measurement. The difference of abrasion rate among all groups was statistically analyzed by ANOVA(SAS program). Following results were obtained: 1. The abrasion rate was significantly lower in Nd:YAG laser irradiation group than NaF iontophoresis group(p < 0.001). 2. The abrasion rate was significantly lower in combined groups of Nd:YAG laser irradiation and NaF iontophoresis than either Nd:YAG laser irradiation group or NaF iontophoresis group(p < 0.001). 3. There was no significant difference in abrasion rate according to application order in the combined groups(p > 0.05). 4. The abrasion rate was significantly lower in all experimental groups than control group(p < 0.001). The results suggest that combined treatment of Nd:YAG laser irradiation and NaF iontophoresis on exposed root surface after periodontal therapy can enhance the abrasion-resistance of root surface and may inhibit the root caries development.
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치주염환자에서 Indirect Bonding Technique를 이용한 교정치료
이영석,고은영,김진덕,김송욱,염창엽,김병옥,한경윤,Lee, Young-Seok,Ko, Eun-Young,Kim, Chin-Dok,Kim, Song-Uk,Yum, Chang-Yup,Kim, Byung-Ock,Han, Kyung-Yoon 대한치주과학회 1998 Journal of Periodontal & Implant Science Vol.28 No.1
치주염환자에서는 치아의 회전이나 순측경사등으로 인한 상악 정중부 이개 등의 심미적, 기능적 문제들이 자주 수반되어 후속 적인 교정치료를 요하는 경우가 많다. 이러한 경우 보조적인 교정치료로도 치료가 가능한데, 안정된 후방구치에서는 교정력을 가하지 않고 고정 원으로써 작용하게 하고 해당 치아만을 이동시켜야만 한다. 그러나 성인교정에서는 제한점들이 많기 때문에 비교정전문의에게는 섣불리 교정치료를 하기가 어렵다. 더구나 정확히 브라켓을 장착하는 것이 중요한데 간단한 문제는 아니다. Silverman등이 indirect bonding technique을 소개하면서 이런 문제점들을 해결하는데 도움을 주게 되었다. 그후 여러 사람 들에서 다양한 방법들이 소개되었지만 기본적인 원리는 구강 외에서 이상적인 위치에 브라켓을 위치시키고 tray를 이용해서 구강내 치아면에 재현하는 방법이다. 이런 방법을 이용함으로써 molar uprighting, forced eruption, 악교정술시 surgical arch wire 장착, 설측교정술 등에도 쉽게 적용할 수 있다. 이러한 관점에서, 비교정전문의들도 보다 쉽고, 정확하게 브라켓을 위치시킬 수 있는 indirect bonding technique를 이용한다면 보조적인 교정치료 뿐만 아니라 포괄적인 교정치료도 가능하리라 사료된다. Periodontal disease and/or loss of teeth brings pathologic tooth migration that can result in esthetic and occlusal problems. Diastema and general spacing of the teeth, particularly in the anterior segments of the dentition are frequently developed in individuals with advanced periodontal disease. Thus, the overall treatment plan for a patent with advanced periodontal disease often involves periodontal orthodontic combined therapy. Orthodontic treatment in adults with periodontal disease is restricted to tooth alignment with special caution. Indirect bonding can achieve accurate bracket placement. A 38 year old woman with adult periodontitis was treated by periodontal therapy. Subsequently, her diastema was orthodontically corrected by indirect bonding technique. It must be an appropriate case report of periodontal-orthodontic combined therapy.
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김진덕,김형수,김천석,김병옥,한경윤 朝鮮大學校 口腔生物學硏究所 1997 口腔生物學硏究 Vol.21 No.2
Lasers are an impressive potential treatment modality for a variety of clinical conditions. This article profiles several clinical applications of the Nd:YAG laser in periodontics. The Nd:YAG laser can be used for gingivectomy, gingivoplasty, crown lengthening and gingival curettage, with little or no bleeding and discomfort, usually without anesthesia. In addition, post-operative pain and discomfort are considerably reduced. Therefore these procedures with laser can be used in mentally retarded patients and homorrhagic disorders, such as hemophilia and Sturge-Weber syndrome. The Nd:YAG laser is also used for melanin depigmentation on gingiva, because it is highly absorbed by pigmented tissue. The Nd:YAG laser can not be replaced with conventional scaling and root planing. But it can be used to perform root planing when used in conjunction with conventional treatment method. Further research needs to be conducted on the clinical application of lasers for hard tissue use.
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