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Ryoon-Ki Hong,Seung-Min Lim,Jung-Min Heo,Seung-Hak Baek 대한치과교정학회 2013 대한치과교정학회지 Vol.43 No.3
This article describes the orthodontic treatment of a 31-year-old Korean female patient with gummy smile and crowding. The patient showed excessive gingival display in both the anterior and posterior areas and a large difference in gingival heights between the anterior and posterior teeth in the maxilla. To correct the gummy smile, we elected to intrude the entire maxillary dentition instead of focusing only on the maxillary anterior teeth. Alignment and leveling were performed, and a midpalatal absolute anchorage system as well as a modified lingual arch was designed to achieve posterosuperior movement of the entire upper dentition. The active treatment period was 18 months. The gummy smile and crowding were corrected, and the results were stable at 21 months post-treatment.
Hong, Ryoon-Ki,Kim, Tae-Gun,Kim, Tae-Woo 대한치과교정학회 2004 대한치과교정학회지 Vol.34 No.6
진단용 셋업 모형 제작시 전치의 치축을 조절하기 위하여 incisor inclination indicator란 장치가 소개되었다. 이것은 상하악 전치의 후방 견인시 토오크 조절을 위하여 사용된다. 본 논문에서는 incisor inclination indicator를 사용하여 전치부 설측 브라켓에 적절한 토오크를 처방하는 방법을 묘사하고 이렇게 적절한 토오크가 처방된 전치부 설측 브라켓으로 치료한 양악 전돌증 환자의 치료결과를 평가한다. 후방 견인시 상하악 전치는 토오크가 적절하게 조절되었다. 설측교정 치료에 있어서 incisor inclination indicator는 기공 과정에서 부가적으로 사용되어 전치부의 후방 견인시 효과적으로 토오크 조절을 할 수 있는 것으로 생각된다. A device called incisor inclination indicator to control the axial inclinations of the incisors in the diagnostic setup is introduced. It is used to control the retraction of the maxillary and mandibular incisors. In this article, we describe the use of the incisor inclination indicator to prescribe adequate torque into the anterior lingual brackets and evaluate the results of treatment in a bimaxillary dentoalveolar protrusion case that underwent orthodontic treatment with the pretorqued anterior lingual brackets. Retraction of the maxillary and mandibular incisors was achieved with careful control of the axial inclination. It is indicated that the use of the incisor inclination indicator is an effective adjunctive laboratory procedure for anterior torque control during retraction in lingual orthodontic treatment.
Hui Ryoon Shin,Sun Min Park,Changsun Choi,Min Suk Rhee 한국식품영양과학회 2021 한국식품영양과학회 학술대회발표집 Vol.2021 No.10
Streptococcus dysgalactiae, which causes invasive human infections, is zoonotic, and at the same time, a possible causative agent of food poisoning. Yet, there is no standardized detection method for S. dysgalactiae in food matrices. In this study, we developed both qualitative and quantitative analysis methods for S. dysgalactiae in meats including pre-treatment methods to inhibit meat debris from interrupting accurate detection. Low-speed centrifugation, lipase, or proteinase K treatment was introduced to enhance the DNA yield from the contaminated meat, which was confirmed with conventional, and real-time PCR. Optimal DNA extraction protocol including low-speed centrifugation at 600×g for 10 min, treatment of lipase (5 U/μ L), and proteinase K (2.76 mg/μL) was established. Validation was conducted with artificially inoculated meat in both high (ca. 3 log CFU/g) or low (ca. 1 log CFU/g) bacteria populations, and none of the false-positive or-negative results were shown. This study highlights the development of a simple and low-cost S. dysgalactiae detection method for meat which could contribute to the prevention of potential foodborne diseases in advance.