• 대한구순구개열학회지
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• 제8권2호
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• pp.53-62
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• 2005

Submucosal type cleft palate is a kind of cleft palate. A submucosal cleft may result in shortening of the anteroposterior dimension of the hard or soft palates or both. The increased distance along with the lack of muscle connection in the soft palate usually accounts for the lack of palatopharyngeal function in patients with submucosal cleft. Resonance disorders which is found in cleft patients show hypernasality or hyponasality. Many cases of submucosal type cleft palate patients visit our clinics due to hypernasality. In this study, resonance disorders was evaluated through nasalance test. Experimental group was composed of submucosal type cleft palate patients. The patients were treated by a so-called combined therapy, i.e., operation and speech training. To observe the changing pattern by surgery, nasalance test was carried out one time before surgery and three times after surgery. Nasometer II was used as a examination. The questionaire was filled with single vowels & diphthongs. The mean nasalance score of the child was significantly lower than that of the adult at every vowel. An early age at operation (under 10 years) was that a better functional result was achieved with patients. The mean nasalance score of /i/ was highest and that of /a/ was the lowest. The result of corrective surgery in selected cases has achieved improvement in all cases. Hypernasality has been consistently diminished. he operation.

• Journal of Oral Medicine and Pain
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• 제22권1호
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• pp.167-181
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• 1997

The aim of this study was to investigate the relationship between velocity and factors which could affect the velocity of mandibular movement. For this study, 30 dental students without any masticatory signs and symptoms and 90 patients with temporomandibular disorders(TMD) were selected as the control group and the patients group, respectively. After determining Angle's classification and lateral guidance pattern of occlusion, clinical examination for TMD was perfomed. Velocity and distance of mandibular movements were recorded with BioEGN, reproducibility index of lateral excursions was evaluated by Pantronic(PRI) and BioEGN (BERI) activity in masticatory and cervical muscles were measured with BioEMG, and occlusal contact time and cross-arch unbalance(Total left-right statistics, TLR) on clenching were recorded with T-scan, respectively. The results of this study were as follows : 1. Velocity in the patients was faster than that in the controls in most mandibular movements, but on wide opening and closing movement, result was reverse. 2. Velocity on closing movements were faster than that on opening movements in the control group and a similar tendency was also shown in the patients group. 3. Patients with muscle disorders showed a tendency to have the highest value of velocity of all diagnostic subgroups, while patients with degenerative joint diseases showed a tendency to have the lowest value. 4. Patients with canine guidance showed a tendency to have the highest value of velocity in three subgroups by lateral guidance pattern, while patients with group function showed a tendency to have the lowest value. 5. BERI had a positive correlation with opening velocity on lateral excursion, while TLR had a negative correlation with opening velocity on swallowing. 6. EMG activity on clenching in masticatory muscles had negative correlation with opening velocity on border movements, and on swollowing, while the activity in rest correlated positively with opening velocity on border movements. 7. There were positive correlation between the velocity and the distance in long components of mandibular trajectory.

• 치위생과학회지
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• 제21권1호
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• pp.8-18
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• 2021

The purpose of this study is to provide the general history of fostering dentists in Japan and introducing their new roles. This research was conducted based on the government policy report on dentists and the information published by each educational institution. Based on the collected data, the official websites were used to represent the latest statistics of the institutions. The number of dentists in Japan has increased. The government established the National Examination for Dentists to guarantee the quality of dentists. After the standards for developing questions for the national examination were established in 1985, the contents of the examination have been appropriately improved by revising the standards every four years. This improvement has required dental students to study a variety of subjects for six years at dental school. Since dentists in Japan are required to respond to various demands from the nation; the Model Core Curriculum for Dental Education was developed to teach medical ethics and abilities to ensure that dentists conduct themselves professionally. Recently, the roles of dentists have been changing in Japan. When providing dental services to older patients over the age of 65, dentists and other dental professions focus on maintaining oral functions, such as saliva secretion, bite force, tongue movement, and masticatory/swallowing functions. However, oral function-related services for children are different. In addition to providing essential dental services, dental practitioners also provide special treatment, such as oral muscle training, myofunctional therapy, health guidance, and space retainers to the child patients with developmental insufficiency in oral functions. Dentistry in Japan has undergone numerous changes over the years and has continued to offer high-quality dental health services. Thus, information gained from the Japanese experience may be helpful to dental professions in other developed countries for planning oral health measures.

• 한국산학기술학회논문지
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• 제20권4호
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• pp.303-310
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• 2019

본 연구는 성인과 노인의 구강근기능(저작력, 혀근력, 구순력, 협근력)을 비교분석하고 구강건강 관련 삶의 질과 연하 장애에 영향을 미치는 구강근기능을 조사하였다. 2017년 12월부터 2018년 5월까지 대전과 논산시에 거주하는 20세 이상 성인 73명을 조사하였다. 수집된 검사자료는 SPSS 18.0 프로그램을 이용하여 ANOVA, 상관분석, 회귀분석을 하였다. 연령층별 저작력은 우측, 좌측 구치교합력을 평가한 결과 노년층이 (8.93, 10.80) 성인층(12.51, 14.61) 중년층 (11.63, 14.75)에 비해 감소하였다(p>0.05). 혀근력은 성인층(60.55), 중년층(50.61), 노년층(37.43) 집단간 통계적으로 유의한 차이가 있었다(p=0.000). 구순력은 노년층(8.57)이 성인층(12.01), 중년층(11.37) 보다 통계적으로 유의하게 낮았다(p=0.000). 구강건강 관련 삶의 질에 미치는 구강근기능은 혀근력이었고, 연하장애에 영향을 미치는 요인도 혀근력이었다. 혀근력은 자연치아수(r=.566, p<.05), 구순력(r=.497, p<.05)과 유의한 순상관관계가 있었다. 구강건강 관련 삶의 질과 연하장애에 영향을 미치는 요인은 혀근력이었다(p<0.05). 노화에 의한 구강근기능 저하의 위험성 인식이 필요하다. 특히 혀근력은 삶의 질과 연하장애와 관련된다. 연령증가시 치아상실로 인한 구강기능 감소뿐만 아니라 구강근기능 저하로 인한 저작, 연하 구강기능 감소의 위험성을 인식하고 고령사회에서 구강건강 관련 삶의 질 증진을 위해 정기적 구강관리 및 구강근훈련의 필요성이 제안되었다.

• 재활복지
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• 제21권1호
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• pp.233-252
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• 2017

본 연구는 호흡근의 지속적 훈련이 필요한 경수손상 환자에게 취주악기를 사용한 음악치료가 호흡, 구강 운동 및 조음에 미치는 영향에 대해 알아보고자 하였다. 시행되었던 프로그램의 참여자 중 경수 손상환자 군에 해당하는 3명의 결과를 선별하여 사후 데이터 분석 하였다. 프로그램에 사용할 취주악기로 호기와 흡기를 모두 활용하는 하모니카를 선택하였다. 기간은 총 6주간 주 1회 30 ~ 40분씩 시행하였고, 소그룹으로 진행 후 개별적으로 연습을 유지하도록 당일 진행내용이 자료로 제공되었다. 평가는 호흡관련 요소인 최대 호기량과 취주악기의 특징을 반영한 구강운동 그리고 조음검사로 시행하였고, 이에 대해 사전사후 결과를 비교하여 확인하였다. 분석결과 최대 호기량이 사전보다 평균 25ml 증가하였으며, 조음은 3.16점 증가하였다. 구강운동은 사전보다 사후에서 11.67점 움직임이 증가하였고, 세부항목 비교 시 입을 제외한 턱과 혀에 대한 점수에서 구강운동기능의 증가가 확인되었다. 이러한 연구결과를 토대로 본 연구는 취주악기를 사용한 음악치료가 경수손상 환자의 호흡재활 분야에 실천적이고 효과적 중재방안이 될 것으로 생각한다.

• Journal of Oral Medicine and Pain
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• 제25권2호
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• pp.191-203
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• 2000

This study was performed to investigate the relationship between vertical dimension during swallowing and speech pattern in patients with temporomandibular disorders. For this study, 33 patients with temporomandibular disorders(TMDs), namely, 17 patients with disc displacement with reduction and 16 patients with disc displacement without reduction, and 30 normal subjects without any signs and symptoms in the masticatory system were selected as the patient group and as the normal group, respectively. Biopak $system^{(R)}$(Bioresearch Inc., Milwaukee, USA) was used for recording of electromyographic(EMG) activity(${\mu}V$) of the anterior temporalis, the superficial masseter, the sternocleidomastoideus and the trapezius insertion muscle during swallowing, and of mandibular positional change with function time(sec.) during swallowing and speech. A sentence of 'Sue is missing her house' was used for observing of speech pattern. Comparison between the two groups and relationship of the mandibular positional change and the function time between during swallowing and during speech were analysed by SPSS windows program. The results of this study were as follows : 1. Mean EMG activity of the trapezius insertion during swallowing was higher in the patient group, and the value was $3.4{\mu}V$ in patients and $2.1{\mu}V$ in normal subjects. 2. Vertica1 dimension(VD) at mandibular rest position before swallowing was slightly higher in the patient group, but VD at swallowing-late stage and at rest position after swallowing were not different between the two groups. 3. Swallowing time were 2.1 sec. in the patient group, and 1.5 sec. in the normal group, and the difference was significant. 4. VD during speech were generally higher in the normal group. In this case, speaking position showing the most difference between the two groups was 'her' position. The distance from habitual intercuspal position to 'her' position was 4.9mm in the patient group, and 6.6mm in the normal group. Speaking time was also longer in the patient group. 5. There were no difference in all observed items between the two categories of the patient group according to reduction of disc displacement. 6. Relationship between the positional changes during swallowing and speech were different between the patient group and the normal group. And in the normal group, VD at rest position before swallowing was negatively correlated with speaking time.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제13권3호
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• pp.338-345
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• 1991

선천성 혹은 술후성 기형으로 발생하는 구개인두 부전증은 구강과 비강사이의 부적절한 폐쇄기능으로 인해 과비음 등의 발음장애를 초래한다. 그 원인으로는 구개파열, 인두비대증, 편도선절제술후의 구개와 인두의 비율 부조화, 구개인두 괄약근의 기형, 구래부전마비, 연구개 결손, 상악골 전진 절단술 등이 있다. 구개인두 부전증의 진단에는 임상적, 방사선학적 검사와 더불어 섬유광학 비내시경을 이용한 구개인두의 기능검사가 강조된다. 수술방법으로는 구개성형술, 인두증강술, 인두성형술, 인두피판술 등이 있다. 근자에는 상부기저형 인두피판술이 널리 사용되고 있는데, Hogan등이 개선시킨 술식에 의하면, 넓고 긴 피판을 얻을 수 있고 피판의 Raw surface를 연구개의 비강측 점막으로 덮을 수 있으며 측방 통로를 조절할 수 있다는 장점이 있다. 이에 저자등은 본인에 내원한 구개인두 부전증 환자 7례에서 상부기저형 인두피판을 이용하여 구강과 비강 사이의 측방 통로를 적절히 조절함으로서 발음을 개선시켜 본 바 양호한 임상성적을 얻었기에 보고하는 바이다.

• The Journal of Advanced Prosthodontics
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• 제5권4호
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• pp.388-395
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• 2013

PURPOSE. The purpose of this study was to estimate the effects of occlusal stability to identify action mechanisms of mouthguards, known to have a modulatory effect on limb muscle function. MATERIALS AND METHODS. This study included 20 male subjects to perform the isokinetic muscle tests and the Wingate anaerobic power test on both knee joints under five closed-mouth conditions: without or with 4 types of mouthguards with thickness of 2 mm based on premolar area: (1) full-coverage, (2) anterior partial-coverage, (3) right posterior partial-coverage, and (4) left posterior partial-coverage. The obtained results were subjected to One-way ANOVA with repeated measures, followed by post hoc test of the contrast method (${\alpha}$=.05). RESULTS. There was no significant difference between the closed position with and without a full-coverage mouthguard in all variables. However, significant differences were observed between with and without a partial-coverage mouthguard in muscular endurance during extension of the left knee, muscular power and endurance during flexion of the right knee. Additionally, significant differences were found between occlusal states with full- and partial-coverage mouthguards in muscular power and endurance during extension of the left knee. CONCLUSION. These findings indicate the elevation of vertical dimension by 2 mm or the inducement of occlusal stability had little effect on isokinetic muscle strength and anaerobic performance, while uneven distribution of occlusal force might have some positive effects.

• 대한심미치과학회지
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• 제31권1호
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• pp.26-35
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• 2022

전악 임플란트 수복시 기능적인 부분 뿐 아니라, 심미적인 측면에서 고려해야 할 부분들이 많다. 무치악 혹은 부분 무치악 상태에서 전악 수복이 이루어지게 되면, 하안모의 큰 변화를 불러 일으킨다. 하안모의 변화뿐 아니라 안모 전체의 변화로 인하여 인상이 많이 달라 지게 된다. 이러한 안모의 변화들은 교합 고경의 회복과 치아들의 3차원적 위치, 전후방과 좌, 우 위치에 의해 안모들 싸고 있는 근육들의 변화로 인하여 일어 나는 것이다. 악골의 비대칭과 함께 안모 비대칭이 있는 환자에 있어서, 전악 임플란트 수복을 통하여, 안모 비대칭을 개선한 치료 증례를 살표 보도록 하겠다. 하악 과두의 흡수로 인하여 짧아지고 과 긴장된 근육들을 임시치아 과정에서 교합을 높여 가면서, 근육을 훈련시켜서, 좌, 우균형을 맞추어 준 증례가 되겠다. 골격적 부조화를 좌,우 근육의 균형을 통화여 보상하여, 하안모 뿐 아니라, 안모전체, 두경부 쪽의 균형을 이루는 것을 살펴 보도록 하겠다.

• 대한두개안면성형외과학회지
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• 제18권1호
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• pp.65-70
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• 2017

A 25-years-old woman with mandibular prognathism underwent a mandibular setback by way of mandibular sagittal split ramus osteotomy (MSSRO). After 2 days of operation, she developed difficulty of closing her right eye. The blink reflex test and motor nerve conduction study of the right orbicularis oris muscle were revealed right facial neuropathy of unknown origin and House-Brackmann facial nerve grading system (HBFNGS) grade V. For treatment, we initially prescribed oral prednisolone and nimodipine including physical therapy. The samples consisted of 11 facial nerve palsy patients caused by MSSRO and were analysed about onset of facial nerve palsy, postoperative HBFNGS, final HBFNGS, treatment method and recovery time. At 10 weeks of treatment of nimodipine, she had completely regained normal function (HBFNGS grade I) of the right facial nerve. The clinical results lead to assume a fast recovery of facial nerve function by the nimodipine medication, whereas average time of recovery is 16.32 weeks in references. Despite of the limited one patient treated, the result was very promising with respect to a faster recovery of the facial nerve function. Considering the use of nimodipine treatment for peripheral facial nerve palsy following a surgical approach with an anatomically preserved nerve can be recommended.