• 대한치과의사협회지
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• 제16권4호통권107호
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• pp.273-278
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• 1978

A girl aged 16 years and I month, had a severe Angle's class III malocclusion, characterized by a retarded and constricted maxilla, anterior and posterior crossbite. This patient underwent extraction of two lower Ist premolar. After extraction, author placed multibanded system in lower dental arch to change the long axis of anterior teeth and delivered removable appliance with Coffin spring in the upper dental arch to expand dental arch. After 13 months, anterior & posterior crossbite was corrected and this patient's profile was improved. Superimposition of pretreatment and posttreatment cephalograms upon the SN line registered at S showed backward downward rotation of the mandible and retrusion of lower lip.

• 대한치과교정학회지
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• 제22권2호
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• pp.413-426
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• 1992

저자는 좋은 교합관계를 유지하기 위한 치아와 기저골과의 관계를 분석하기 위해 정상교합자와 Angle써 I급 부정교합자(비발치군, 발치군)의 경석고 모형상에서 최대치아근원심폭경, 기저악궁폭경 및 기저악궁장경을 계측하고 최대치아근원심폭경 합, 최대치아근원심폭경 합에 대한 기저악궁폭경 비, 최대치아근원심폭경 합에 대한 기저악궁장경 비 및 최대치아근원심폭경 합에 대한 기저악궁폭경과 기저악궁장경합의 비를 산출하여 통계학적으로 분석한 결과 다음과 같은 결과를 얻었다. 1. 최대치아근원심폭경합에 대한 기저악궁폭경 비는 상악에서 정상교합군은 $46.9{\pm}2.6\%$, 비발치군은 $49.4{\pm}3.9\%$, 발치군은 $42.5{\pm}3.3\%$로 나타났으며, 하악에서 정상교합군은 $46.6{\pm}2.4\%$, 비발치군은 $47.5{\pm}4.0\%$, 발치군은 $42.6{\pm}2.6\%$로 나타났다. 2. 최대치아근원심폭경합에 대한 기저악궁장경 비는 상악에서 정상교합군은 $33.4{\pm}1.9\%$, 비발치군은 $33.9{\pm}1.8\%$, 발치군은 $28.7{\pm}2.5\%$로 타나났으며, 하악에사 정상교합군은 $34.4{\pm}4.3\%$, 비발치군은 $36.5{\pm}1.9\%$, 발치군은 $31.5{\pm}2.5\%$로 나타났다. 3. 최대치아근원심폭경합에 대한 기저악궁폭경과 기저악궁장경 합의 비는 상악에서 정상교합군은 $80.3{\pm}3.4\%$, 비발치군은 $83.3{\pm}4.8\%$, 발치군은 $71.2{\pm}4.3\%$로 나타났으며, 하악에서는 정상교합군은 $81.0{\pm}5.2\%$, 비발치군은 $84.0{\pm}5.4\%$, 발치군은 $74.1{\pm}4.1\%$로 나타났다. 4. 최대치아근원심폭경합에 대한 기저악궁폭경 비의 $95\%$ 신뢰구간은 상악에서 정상교합군은 $46.3-47.5\%$, 비발치군은 48.1-50.7, 발치군은 $41.7-43.3\%$로 나타났으며, 하악에서 정상교합군은 $46.1-47.2\%$, 비발치군은 $46.1-48.8\%$, 발치군은 $42.0-43.3\%$로 나타났다. 5. 최대치아근원심폭경합에 대한 기저악궁장경비의 $95\%$신뢰구간은 상악에서 정상교합군은 $32.9-33.8\%$, 비발치군은 $33.3-34.5\%$, 발치군은 $28.1-29.2\%$로 나타났으며, 하악에서 정상교합군은 $33.4-35.4\%$, 비발치군은 $35.8-37.2\%$, 발치군은 $30.9-32.1\%$로 나타났다. 6. 최대치아근원심폭경합에 대한 기저악궁폭경과 기저악궁장경 합의 비의 $95\%$신뢰구간은 상악에서 정상교합군은 $79.5-81.0\%$, 비발치군은 $81.6-84.9\%$, 발치군은 $70.1-72.2\%$로 나타났으며, 하악에서 정상교합군은 $79.8-82.2\%$, 비발치군은 $82.1-85.5\%$, 발치군은 $73.1-75.1\%$로 나타났다. 7. 최대치아근원심폭경합, 기저악궁폭경, 기저악궁장경, 최대치아근원심폭경 합에 대한 기저악궁폭경 비, 최대치아근원심폭경 합에 대한 기저악궁장경 비 및 최대치아근원심폭경 합에 대한 기저악궁폭경과 기저악궁장경 합의 비에서 발치군 남자의 기저악궁장경을 제외하고는 상하악간에 상관관계가 있는 것으로 나타났다.

• 대한치과의사협회지
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• 제13권12호
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• pp.1135-1139
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• 1975

A boy aged 13 years 5 months, had a Angle's clss I malocclusion characterized by severe anterior crowding. Molar relationship was neutroclusion, incisor overbite was 4mm, incisor overjet was 3mm. The patient underwent extraction of four first premolars and was treated with a multi-banded light force system. On the process of the orthodontic treatment, the teeth, obtained functional occlusion. The result of treatment was very satisfactory; color, vitality and mobility were normal, periodontal condition was good and the cosmetic result was excellent.

• Journal of Periodontal and Implant Science
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• 제22권2호
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• pp.211.2-211.2
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• 1992

• 대한치과의사협회지
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• 제13권10호
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• pp.929-933
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• 1975

A girl aged 15 years 6 months, had a class Ⅲ malocclusion characterized by severe maxillary anterior crowding and a retarded maxilla. Molar relationship was class Ⅲ on both sides, incisor overjet was - 2.9mm. and incisor overbite was 5.5mm. The patient underwent extraction of four first premolars and was trested with a multi-banded light force system. After 13 months, the patient gained a normal verbite-overjet relationship of anterior teeth and a class 1 molar relationship. Superimposition of pretreatment and posttreatment cephalograms upon the line SN registered at S showed backward downward rotation of the mandible.

• Journal of Periodontal and Implant Science
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• 제33권3호
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• pp.533-542
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• 2003

The purpose of this study is to evaluate histologic result of bone substituting material on defects followed tooth extraction. We compare the histologic findings control, DFDBA, Bio-Oss(R), and $Regenafil^{TM}$, Briefly, mandibular premolar teeth were extracted available for bone filling. All alveolar sites were checked after extraction and thoroughly debrided with a dental curet to remove the periodontal ligament. Extraction sites were prepared dehiscence on buccal side 7mm height from alveolar crest. The graft materials were filled into the extraction socket and dehiscenc defects. The animals were sacrificed 12 weeks after implantation. Both treated and control mandibular sites were histologically evaluated with light microscopy. Histologic observation at 12 weeks revealed that control and experimental sites were healed uneventfully and directly apposed to new bone without any adverse tissue reaction. DFDBA and Bio-Ossn(R)sites maintain width of alveolar crest but were not fully resorbed. $Regenafil^{TM}$ sites also maintain width and particles were resorbed more than other graft materials. From this results, it was suggested that $Regenafil^{TM}$ is promising boen substituting materials maintaining the width of alveolar crest and height follewed tooth extraction.

• 대한치과교정학회지
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• 제32권3호
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• pp.185-194
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• 2002

경미한 총생이 있는 경계증례를 치료할 때 비발치로 치료계획을 세우면 심미성과 안정성이 문제될 뿐 아니라 치료 후의 재발이 우려되며, 상하악 제1소구치를 발거하게 되면 전치부의 과도한 후방견인으로 인하여 dish-in face를 초래할 수 있다. 이런 경우 상하악 제2소구치를 발거하여 교정치료를 시행하면 안모심미성의 훼손없이 총생을 해결하고 치료 후의 안정성에도 좋은 결과를 보여준다 미약한 골격 부조화가 있고 경미한 총생이 있지만, 좋은 안모와 I급 구치관계를 가진 성 장 완료된 환자에서 상하악 제2소구치를 발거, 치료하여 치료결과가 양호하고 성공적으로 유지 된 증례를 살펴보고자 한다.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제49권2호
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• pp.68-74
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• 2023

Objectives: Drug holidays are suggested to reduce the formation of osteonecrosis in patients under intravenous (IV) bisphosphonates (BPs) therapy. The objectives of this study are to evaluate the incidence of medication-related osteonecrosis of the jaw (MRONJ) following tooth extraction in cancer patients using IV BP, and to assess the effect of drug holiday on the development of MRONJ. Patients and Methods: A manuel search of the patient folders of Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hacettepe University was undertaken to identify cancer patients who used IV BPs and had at least one tooth extraction between 2012 and 2022. Patents' age, sex, systemic condition, the type of BP used, duration of BP used, number of tooth extraction, duration of drug holiday, localization of tooth extraction and incidence of MRONJ were recorded. Results: One hundred nine teeth were removed from 57 jaws in 51 patients. All tooth extractions were performed under perioperative antibiotic prophylaxis and with primary wound closure. The incidence of MRONJ was 5.3%. Stage 1 MRONJ developed in 3 patients (only one had a drug holiday). The median duration of drug holiday was 2 months. No significant difference between the patients with and without a drug holiday and MRONJ development was found (P=0.315). The mean age of patients developed MRONJ was 40.33±8.08 years. A statistically significant difference was found between age and MRONJ development (P=0.002). Conclusion: The effect of a short-term drug holiday on the development of MRONJ may be limited because BPs remain in bone tissue for a long time. Drug holidays should be applied with the approval of an oncologist with other preventive measurements.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제29권2호
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• pp.135-139
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• 2003

저자 등은 본과에 내원하여 함치성 낭종으로 진단된 5명의 소아 환자에서 보존적인 조대술을 이용하여 매복된 영구치를 발거하지 않고 이차 치유를 유도하였다. 술 후 병소는 신생골로 치유되었으며 매복 영구치도 정상적인 위치로 맹출하였다. 이와 같이 소아에서 함치성 낭종의 경우 주기적인 예후 관찰이 가능하다면 보다 보존적인 조대술 등을 이용시에는 영구치의 정상적인 유도와 낭종의 치유를 유도할 수 있으리라 사료된다. 또한 인접치아의 경사 등에 의한 정상적인 치아의 맹출이 어려운 경우에는 교정치료와 병행시에 정상적인 영구 치열을 확보할 수 있을 것으로 사료되어 문헌고찰과 함께 보고하는 바이다.

• 대한심미치과학회지
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• 제10권1호
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• pp.30-45
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• 2001

In recent years, clinicians' and dentists' esthetic demands in dentistry have increased rapidly. The ultimate goal in modern restorative dentistry is to achieve "white" and "pink" esthetics in the esthetically important zones. Therefore, modern esthetic dentistry involves not only the restoration of lost teeth and their associated hard tissues, but increasingly the management and reconstruction of the encasing gingiva with adequate surgical techniques. Interdental space are filled by interdental papilla in the healthy gingiva, preventing plaque deposition and protecting periodontal tissue from infection. This also inhibits impaction of food remnants and whistling through the teeth during speech. These functional aspects are obviously important, but esthetic aspects are important as well. Complete and predictable restoration of lost interdental papillae remains one of the biggest challenges in periodontal reconstructive surgery. One of the most challenging and least predictable problems is the reconstruction of the lost interdental papilla. The interdental papilla, as a structure with minor blood supply, was left more or less untouched by clinicians. Most of the reconstructive techniques to rebuild lost interdental papillae focus on the maxillary anterior region, where esthetic defects appear interproximally as "black triangle". Causes for interdental tissue loss are, for example, commom periodontal diseases, tooth extraction, excessive surgical periodontal treatment, and localized progressive gingiva and periodontal diseases. If an interdental papilla is absent because of a diastema, orthodontic closure is the treatment of choice. "Creeping" papilla formation has been described by closing the interdental space and creating a contact area. In certain cases this formation can also be achieved with appropriate restorative techniques and alteration of the mesial contours of the adjacent teeth. The presence of an interdental papilla depends on the distance between the crest of bone and the interproximal contact point, allowing it to fill interdental spaces with soft tissue by altering the mesial contours of the adjacent teeth and positioning the contact point more apically. The interdental tissue can also be conditioned with the use of provisional crowns prior to the definitive restoration. If all other procedures are contraindicated or fail, prosthetic solutions have to be considered as the last possibility to rebuild lost interdental papillae. Interdental spaces can be filled using pink-colored resin or porcelain, and the use of a removable gingival mask might be the last opportunity to hide severe tissue defects.