• The Journal of the Korean dental association
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• v.39 no.10 s.389
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• pp.854-865
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• 2001

• Journal of the korean academy of Pediatric Dentistry
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• v.26 no.1
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• pp.32-37
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• 1999

Twin blocks are bite-blocks that effectively modify the occlusal inclined plane to induce favorably directed occlusal forces by causing a functional mandibular displacement. One of the advantage is that full-time wear can be possible because of less interference with normal function such as eating and speaking. So rapid correction of malocclusion is expected. Reverse twin block appliance is modification for correction of class III malocclusion with sagittal component. For increased growth stimulation effort on premaxilla, lip pads can be added. But with lip pads, patients are incapable of full-time wear especially during mealtime. So, removable lip pads can be used for stimulation of growth on premaxilla without any restriction of function. The advantages of the reverse twin block appliance with removable lip pads are: 1. Full-time wear is possible (including mealtime). 2. Patients' cooperation and adaptation is excellent. 3. There is no period of dual bite. 4. Orthopedic correction is achieved by multiple modes, shortening the treatment time. The applied case shows that the reverse twin block appliance with removable lip pads is effective for treatment of class III malocclusion and can shorten the time of treatment.

• Korean Journal of Acupuncture
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• v.33 no.4
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• pp.157-165
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• 2016

Objectives : The purpose of this study was to examine whether or not Postural Yinyang Correction of TMJ(Temporomandibular joint) using Standard intraoral appliance could decrease chronic low back pain. Methods : We reviewed the medical records of 40 patients with TMJ disorder aged from 30 to 70 years from 124 patients who were treated in chronic low back pain at Department of Acupuncture & Moxibustion of Korean Medicine Hospital of Dong-Eui University from November $1^{st}$, 2015 to June $5^{th}$, 2016. The patients were divided into 2 groups: Group A and Group B. In Group A, we treated the patients with acupuncture, sweet bee venom treatment and FCST(Functional Cerebrospinal Therapy) through Standard intraoral appliance from ABA(Accurate Balancing Appliance), Full body exercise therapy, and Upper cervical alignment balance therapy. In Group B, we treated the patients with acupuncture and sweet bee venom treatment. To estimate the effectiveness in controlling pain, we analyzed the Visual analog scale(VAS). To evaluate functional change of patients, we analyzed the Oswestry low back disability questionnaire(ODI). Results : In both groups, VAS and ODI decreased significantly. In the VAS, the result of Group A is significantly more effective than that of Group B. In the ODI, the result of Group A is statistically less effective compared to that of Group B, but not significantly. Conclusions : According to the results, Postural Yinyang Correction of TMJ using Standard intraoral appliance may be effective treatment for low back pain, but the further researches are needed.

• Korean Journal of Acupuncture
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• v.33 no.4
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• pp.183-193
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• 2016

Objectives : The purpose of this study is to find out the effect of Postural Yinyang Correction of TMJ(Functional Cerebrospinal Therapy; FCST) on Bell's palsy. Methods : We reviewed the medical records of 41 patients who were treated for Bell's palsy at the Dept. of Acupuncture and Moxibustion, Dong-Eui University from January $1^{st}$, 2016 to August $31^{st}$, 2016. The patients were divided into 2 groups: Group A(n=21), and Group B(n=20). Patients in Group A were treated by Korean Medical Treatments with FCST using ABA(Accurate Balancing Appliance), a standard intra-oral appliance. Patients in Group B were treated by Korean Medical Treatments without FCST. To estimate the efficacy in recovering palsy, we analyzed the House-Brackmann Grading Scale and Yanagihara's Unweighted Grading System. Results : In both groups, H-B grades were improved significantly during each period except the period from the first visit to one week later(P01). The improvement of H-B grade during each period in Group A is higher than Group B except the period from one week later to two weeks later, but statistically insignificant. In Group A, Y-score was significantly improved during each period except during P01. In group B, Y-score was significantly improved during each period except during P01 and the period from the first visit to two weeks later. The improvement of Y-score during each period in Group A is higher than Group B, but statistically insignificant. Conclusions : FCST using Standard Intraoral Appliance may be helpful in treating Bell's Palsy, but the further researches are needed.

• Journal of TMJ Balancing Medicine
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• v.5 no.sup
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• pp.11-18
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• 2015

Therapeutic effect of Yinyang Balancing Appliance (YBA) of functional cerebrospinal therapy (FCST) for meridian and neurologic yinyang balance was observed in a trigeminal neuralgia case. One Trigeminal neuralgia case was managed with YBA on temporomandibular joint (TMJ), combined with acupuncture. Clinical outcome measurement was performed by subjective rating and clinical observations. The patient's subjective rating and clinical symptoms showed improvement immediately after the initial treatment and this improvement maintained over the follow-up period. Although it is not clear whether the effect is temporary in its nature, a positive effect was observed and further clinical and biological research on FCST is expected.

• The korean journal of orthodontics
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• v.50 no.2
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• pp.136-144
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• 2020

Hemifacial microsomia (HFM) patients may experience emotional withdrawal during their growth period due to their abnormal facial appearance. Distraction osteogenesis at an early age to improve their appearance can encourage these patients. Some abnormalities of the affected side can be overcome by distraction osteogenesis at an early age. However, differences in the growth rate between the affected and unaffected sides during the rest of the growth period are inevitable due to the characteristics of HFM. Therefore, re-evaluation should be performed after completion of growth in order to achieve stable occlusion through either orthognathic surgery or camouflage orthodontic treatment. An eight-year-old patient visited the clinic exhibiting features of HFM with slight mandibular involvement. He received phase I treatment with distraction osteogenesis and a functional appliance. Distraction osteogenesis was performed at the right ramus, which resulted in an open bite at the right posterior dentition. After distraction osteogenesis, a functional appliance and partial fixed appliance were used to achieve extrusion of the affected posterior dentition and settlement of the occlusion adjustment on the unaffected posterior dentition. The patient visited the clinic regularly for follow-up assessments, and at the age of 20 years, he showed facial asymmetry of the mandible, which had deviated to the right side. He received orthodontic treatment to improve the occlusion of his posterior dentition after the growth period. Without orthognathic surgery, stable occlusion and a satisfactory facial appearance were obtained through camouflage orthodontic treatment.

• Journal of TMJ Balancing Medicine
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• v.5 no.sup
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• pp.6-10
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• 2015

A 8 year-old male patient with tic disorder was managed by appliance of Functional Cerebrospinal Therapy (FCST) for 7 months, combined with acupuncture. After being treated for 7 months, the patient's symptoms were improved. Assessment was made by Yale Global Tic Severity Scale (YGTSS) and clinical observation. A positive effect was observed and further clinical and biological research on FCST is expected.

• The Journal of the Korean dental association
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• v.48 no.11
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• pp.819-828
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• 2010

Activator is a removable functional appliance used for correcting the skeletal Class II malocclusion in children with the mandibular deficiency. Berlin standard activator modified from Andresen activator has following characters; do not cover the palatal surface for tongue space, relief on lingual surface of mandibular incisors and resin capping 1/3-1/2 of crown height on mandibular incisors for preventing labioversion of mandibular incisors, L-hook between maxillary lateral incisor and canine for anterior high pull headgear, relief on mandibular posterior bite block for differential eruption of posterior teeth. Two cases presented here had a mandibular deficiency and slight maxillary protrusion. First case (an 11-year-old girl) treated with Berlin standard activator and anterior high pull headgear for 13 months followed by fixed orthodontic appliance for another 29 months. Second case (a 12-year-old boy) treated with Berlin standard activator for 6 months followed by fixed appliance for another 24 months. Treatment results showed a significant improvement in sagittal skeletal and occlusal relationship without premolar extraction. Mandibular condyles were concentric in TMJ [ossa, and masticatory muscle activities were normalized after treatment. In the retention period facial harmony and occlusal stability was maintained.

• Transactions of the Korean Society of Machine Tool Engineers
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• v.13 no.4
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• pp.56-63
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• 2004

Recently technology resulted in highly efficient and multiple-functional electric appliances considering environmental problems. One of the environmental problems is noise of a product in respect to its function. A vacuum cleaner is an essential electric appliance in our daily lives. However, severe noise resulted from high motor speed for improving the function of the appliance is a nuisance for the user. This noise is caused by vibration from various parts of the appliance and fluid noise during a series of intake and exhaust processes while rotating the impeller connected to the axle at a high speed of the fan motor inside the vacuum cleaner rotating around 30,000-35,000rpm. Despite the fact that many researchers conducted studies on reducing the noise level of the fan motor in a vacuum cleaner, only few studies have been conducted considering both the theoretical and experimental aspects using fluid analysis by measuring vibration and noise. Moreover, there has not been a study that accurately compared major noise data obtained considering both of the aspects. In this study, both aspects were considered by considering the following experimental and theoretical methods to verify the major causes of noise from the fan motor in a vacuum cleaner.

• Proceedings of the Korean Society of Machine Tool Engineers Conference
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• 2004.10a
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• pp.399-405
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• 2004

Recently technology resulted in highly efficient and multiple-functional electric appliances considering environmental problems. One of the environmental problems is noise of a product in respect to its function. A vacuum cleaner is an essential electric appliance in our daily lives. However, severe noise resulted from high motor speed for improving the function of the appliance is a nuisance for the user. This noise is caused by vibration from various parts of the appliance and fluid noise during a series of intake and exhaust processes while rotating the impeller connected to the axle at a high speed of the fan motor inside the vacuum cleaner rotating around 30,000-35,000 rpm. Despite the fact that many researchers conducted studies on reducing the noise level of the fan motor in a vacuum cleaner, only few studies have been conducted considering both the theoretical and experimental aspects using fluid analysis by measuring vibration and noise. Moreover, there has not been a study that accurately compared major noise data obtained considering both of the aspects. In this study, both aspects were considered by considering the following experimental and theoretical methods to verify the major causes of noise from the fan motor in a vacuum cleaner.