• The Journal of Korean Obstetrics and Gynecology
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• v.34 no.4
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• pp.62-77
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• 2021

Objectives: This study aimed to anaylze randomized controlled trials on the effectiveness of herbal medicine for hyperemesis gravidarum. Methods: We searched the randomized controlled trials that intervented oral herbal medicine treatment on hyperemesis gravidarum retrieved using seven domestic and foreign databases. Literature search was conducted on April 19, 2021. Results: 185 studies were searched, and 7 were finally selected based on inclusion and exclusion criteria. All subjects were treated with western symptomatic treatment and in treatment group, additional oral herbal medicine was administered. Although the evaluation index was different for each study, all the indexes in the treatment group were significantly improved compared to the control group. Conclusions: Herbal medicine treatment for hyperemesis gravidarum showed significant effectiveness compared to western symptomatic treatment. In the future, additional studies are needed to evaluate the safety of herbal medicine treatment.

• Korean Journal of Head & Neck Oncology
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• v.38 no.1
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• pp.31-35
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• 2022

The soft palate of carcinoma limited to the uvular region is infrequent among oropharyngeal cancers. The oropharynx regulates swallowing and speech through dynamic motions. Failure to reconstruct after surgical resection of the oropharynx structure can lead to permanent velopharyngeal insufficiency. Therefore, suitable reconstruction is important in establishing proper functional outcomes while maintaining oncological safety. We present a case of a 66-year-old male who was diagnosed with oropharynx cancer limited in the uvula accompanied by lymph node metastasis. After surgical resection, reconstruction was performed with the united arrangement of bilateral palatal mucomuscular flap and superiorly based posterior pharyngeal flap. There was no aspiration or reflux after feeding and epithelialization completely occurred after 1 month postoperatively. We report a successful case that the reconstruction with the local flap described above could preserve proper oropharyngeal function after primary surgery in small-sized oropharyngeal cancer.

• The Journal of Churna Manual Medicine for Spine and Nerves
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• v.17 no.1
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• pp.35-46
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• 2022

Objectives This study aimed to review clinical studies on traditional Korean medicine treatment for medial collateral ligament injury of the knee. Methods Clinical studies on Korean traditional medicine treatment of medial collateral ligament injury were conducted. We used five Korean online databases (OASIS, KISS, RISS, DBPia, and ScienceOn) and three foreign databases (PubMed, Cochrane Library, and CNKI). Out of 99 studies that were found, we excluded repeated articles, studies that were not related to Korean medicine, and those not relevant to the topic of the study. Results Ten randomized controlled trials and 20 case studies were selected. Eight traditional Korean medicine treatments, including acupuncture, herbal medicine, chuna, and herbal ointment, were used in these studies. The most commonly used treatment was found to be acupuncture. Conclusions Our study showed that traditional Korean medicine for medial collateral ligament injuries was effective. However, there were some limitations. Further clinical studies and randomized controlled clinical trials are needed for more evidence on Korean traditional medicine.

• The Journal of Korean Medicine
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• v.43 no.1
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• pp.154-170
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• 2022

Objectives: The purpose of this study was review the current clinical studies about the effect of Korean traditional medicine treatment for meniscus injury. Methods: Clinical studies on Korean traditional medicine treatment of meniscus injury were searched through 11 online databases. We analyzed the authors, publication year, country, study design, subjects, treatment methods, treatment effects, evaluation tools and adverse events of the selected studies. Results: 23 studies which included 9 randomized controlled trials, 8 case reports, 4 retrospective observational studies, 2 non-randomized controlled trials were selected through the databases. A total of 9 Korean traditional medicine treatments were used, among them, acupuncture treatment was the most used. The most commonly used outcome was effective rate. Conclusions: Through this study, we could confirm that Korean traditional medicine is an effective treatment for meniscus injury. It was suggested that various clinical studies on the effects of Korean traditional medicine for meniscus injury are needed and it is necessary to establish more scientific evidence through studies with a high level of evidence.

• The Journal of Pediatrics of Korean Medicine
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• v.36 no.1
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• pp.78-90
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• 2022

Objectives The purpose of this study is to review relevant clinical studies to investigate the effectiveness of herbal medicines for night terror in children. Methods Studies on herbal treatment for night terrors were searched and analyzed through electronic databases such as PubMed, China National Knowledge Infrastructure, Wanfang, CiNii, J-STAGE, Oriental Medicine Advanced Searching Integrated System and Science ON. Studies included Randomized controlled trials, case series, and case reports. Results A total of 25 studies were selected and analyzed. In most studies, improvement of night terrors was observed after treatment, such as high total effectiveness. In one study, the frequency of night terrors was decreased significantly in herbal medicine group. Conclusions Based on the results of the clinical studies, we identified that herbal medicine is an effective treatment for night terror. But it is considered necessary to prove the effect and safety through additional systematic clinical studies.

• The Journal of Korean Obstetrics and Gynecology
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• v.35 no.1
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• pp.75-90
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• 2022

Objectives: The purpose of this study protocol is firstly to investigate the status of Korean medical treatment of dysmenorrhea, and secondly to investigate effectiveness of the Clinical Pathway (CP) of dysmenorrhea and review the applicability. Methods: This is a multi-center observational study. The data will be prospectively collected from 14 Korean medicine clinics. 45 patients for each of the CP-applied and non-applied groups will be recruited to compare the degree of improvement in menstrual pain. All the diagnosis records, treatment methods, treatment results, adverse events, and medical expenses of patients with dysmenorrhea will be collected. We will investigate the proportion of patients who could be applied with CP, and the actual number of CP applications, and CP completion rate to evaluate the applicability. Additionally, the satisfaction survey will be used to collect feedback from medical staff members and patients. Results: The results of this study will be disseminated through peer-reviewed publications and scientific presentations. Conclusions: This study is expected to provide valuable data for application of standard Korean medicine clinical pathway for dysmenorrhea.

• The Journal of Korean Obstetrics and Gynecology
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• v.22 no.4
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• pp.135-148
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• 2009

Purpose: The purpose of this study is to recognize correlation between stress and menstrual pattern among low-income women. Methods: From 5th October to 24th October 2009 we researched 14 low-income mothers by questionnaires to investigate their stress and menstrual patterns. Results: The mean level of their stress was $6.71{\pm}2.92$. The less the income was, the higher the stress was. Among the women, the stress of those who do not had husbands was also high. Most of the women's menarche came late and their menstrual cycle was long. The menstrual color was a little dark and they had blood clots and pain during menstruation. Their mental states also often changed over the period and they had pattern of blood stasis. The study observed that the higher the stress was, the worse the menstrual pain was. Conclusion: Low-income women are under stress by their socioeconomic status and their menstrual patterns often change. Stress has correlation with menstruation.

• Journal of Science Education
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• v.41 no.2
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• pp.248-266
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• 2017

The purpose of this study is to present various examples of collaborative learning based on the Instruction of Internet in the 6th grade elementary school mathematics class. So we introduce the design method of classroom environment for classroom Internet and give example of various teaching methods. This study was conducted for nine months from March to November, 2016, one sixth grade of elementary school in D area. During this period, we conducted Instruction of Internet-based collaborative learning to classify typical teaching cases. We classified into 5 type collaborative learning. First, collaborative learning in the classroom. Second, remote collaborative learning between classroom and classroom. Third, Live participation classes. Forth, project collaborative learning. Fifth, using virtual reality in collaborative learning. In addition, we could identify that there is a difference compared to the conventional learning. It became possible to conduct collaborative learning with other students simultaneously or have opening class with both parents and teachers by using Youtube. These examples can be presented as a case to depart from traditional mathematics class in one classroom. In this regard, we will be able to provide several implications about teaching methods utilizing smart device and Internet in future classroom.

• Korean Journal of Dental Materials
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• v.45 no.4
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• pp.287-300
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• 2018

The aim of this study was to compare the morphological characteristics of two types of stainless steel permanent molar crowns using three-dimensional scanners and the morphological changes of these crowns after crimping. Two types of stainless steel permanent molar crowns, PO-96 and PERMACROWN were scanned using three-dimensional scanner. Crown size, crown index (ratio of buccolingual diameter to mesiodistal diameter at height of contour), cervical convergency of crown were measured. Stainless steel crowns were crimped and re-scanned with three-dimensional scanner. Morphological changes of stainless steel permanent molar crowns were analyzed. As for the crown index, maxillary PERMACROWN was larger buccolingually and smaller mesiodistally than maxillary PO-96 and mandibular PERMACROWN was smaller buccolingually and larger mesiodistally than mandibular PO-96. Maxillary PO-96 was more convergent to cervical mesiodistally than maxillary PERMACROWN and mandibular PO-96 was more convergent to the cervical mesiodistally, buccolingually than mandibular PERMACROWN. Both types of stainless steel permanent molar crowns showed reduction of cervical circumference after crimping. Two products were morphologically different in crown size, shape and cervical convergence. Although both types of stainless steel permanent molar crowns are pre-contoured type, additional crimping is needed to achieve better marginal adaptation.

• Korean Journal of Dental Materials
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• v.44 no.3
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• pp.197-206
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• 2017

The hardening effect by ice-quenching after oxidation of a Pd-Ag-Sn-Au metal-ceramic alloy during porcelain firing simulation was investigated by means of hardness test, field emission scanning electron microscopic observations, and X-ray diffraction analysis. The hardness decreased by ice-quenching after oxidation, which was induced by the homogenization of the ice-quenched specimen. The decreased hardness by ice-quenching after oxidation was recovered from the wash stage which was the first stage of the remaining firing process for bonding porcelain. After wash stage, the hardness of the ice-quenched specimens decreased during the subsequent porcelain firing process. But the final hardness of the ice-quenched specimens after oxidation was higher than that of the specimens cooled at stage 0 after oxidation. The increase in hardness of the specimens during the first firing process was caused by the lattice strains generated at the interface between the face-centered cubic Pd-Ag-rich matrix and the face-centered tetragonal Pd3(Sn, Ga, In) precipitate. The decrease in hardness of the specimens during the remaining firing process was caused by the microstructural coarsening.