• Journal of Oral Medicine and Pain
• /
• 제20권1호
• /
• pp.159-169
• /
• 1995

The purpose of this study was investigating the effects of pivot splint on width of the temporomandibular joint space in order to get the basic data for clinical applications. Pivot splint could be used for treating the patients with temporomandibular disorders, especially for chronic closed lock which would not be reduced by joint manipulation or with other methods. So it is necessary to have a lot of underlying data for using pivot splint, but there is few available reports related to mechanical principle or clinical results of the splint. Healthy twenty dental students wee collected for this study and pivot splint with 2.5mm high right-side pivot was used. Next, transcanial projection was taken and width of joint space at there mandibular positions were measured : habitual occlusion position, clenching position with splint, and clenching position with splint and mandibular force. The data were processed with SAS statistical program. The obtained results were as follows : 1. Ipsilateral posterior joint space width was increased on clenching the pivot splint, but joint space widths of contralateral side were not significantly changed. 2. Superior and posterior joint space width were increased on clenching the pivot splint with mandibualr force on both ipsilateral and contralateral side. 3. Ipsilateral joint space widths were not significantly changed from habitual occlusion position to clenching the pivot splint with active mandibular force, but in case of with passive mandibular force, posterior joint space width was significantly increased. 4. Correlationships between mandibular positions were more significant at anterior joint space than at superior or posterior joint space. But the correlation between clenching and clenching with mandibular force was significant at all the three joint space.

• 대한치과교정학회지
• /
• 제30권1호
• /
• pp.91-99
• /
• 2000

본 연구는 조선대학교 치과대학 부속치과병원 교정과에 내원한 환자 중 악태모형을 제작하고 CPI (condylar position indicator) 에 의한 하악과두의 위치를 평가하여 중심위 -중심교합 편위양이 전후방 및 수직적으로 1.0 mm 이내, 측방으로 0.3 mm 이내인 정상 범주를 벗어나는 성인 여자 환자 16명을 대상으로 교합안정장치를 3개월간 장착하고, 이들을 장착 기간에 따라 장착 직전, 장착 1개월 후, 장착 2개월 후, 장착 3개월 후로 분류하여 교합안정장치의 장착에 따른 교합력과 교합접촉점 수의 변화 여부를 평가하기 위해 T-scan system을 이용하여 다음과 같은 결론을 얻었다. 1. 교합력의 변화는 교합안정장치 장착 직전에서 장착 1개월 후 사이에 유의성 있게 감소되었다 (P<0.05). 2. 교합력의 변화는 교합안정장치 장착 1개월 후부터 장착 3개월 후 까지는 유의한 차이를 보이지 않았다 (P>0.05). 3. 전치부 교합접촉점 수의 변화는 장착기간에 관계없이 유의성있는 차이가 없었다 (P>0.05). 4. 구치부 교합접촉점 수의 변화는 교합안정장치 장착 직전에서 장착 1개월 후 사이에 유의성 있게 감소되었다 (P<0.05). 5. 구치부 교합접촉점 수의 변화는 교합안정장치 장착 1개월 후부터 장착 3개월 후 까지는 유의한 차이를 보이지 않았다 (P>0.05). 6. 교합접촉점 수의 변화는 전치부에서 보다는 구치부에서 절대적으로 영향을 미쳤다. 이상을 종합해볼 때, 교합안정장치는 장착 1개월 후면 어느정도 중심위로의 하악골 안정을 기대할 수 있을것으로 사료된다.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
• /
• 제28권3호
• /
• pp.175-181
• /
• 2002

Intermaxillary fixation and occusal splint are routine procedure for maxillofacial fracture and orthognathic surgery. When these methods could obstruct oral airway the patients who kept intermaxillary fixation and occusal splint in their mouth, are very difficult to breath after surgery. Nasal bleeding and pharyngeal edema due to nasotracheal intubation, residual effect of muscle relaxants, and anesthetic agent could be contributing factor of airway obstruction. In this study, pulmonary function test was evaluated before and after intermaxillary fixation, and intermaxillary fixation with occusal splint in 22 volunteers. The results were as follows 1. FVC, %FVC, $FEV_1$, $FEV_1%$, PEF, $PEF_{50}$, MVV without intermaxillary fixtion were 4.45L, 88%, 4.03L, 90.9%, 10.26L/s, 5.53L/s, and 136.14L/min, and with intermaxillary fixation were 3.51L, 68.67%, 3.06L, 69.39L, 6.52L/s, 3.94L/s, and 69.39L/min. The results with intermaxillary fixation and occusal splint were 2.15L, 42.41%, 1.71L, 38.81%, 2.83L/s, 1.74L/s, and 37.14L/min. 2. Compared with before and after intermaxillary fixation, all values of pulmonary function test were decreased and after intermaxillary fixation and intermaixillary fixation with occulasal splint, the results were decreased. 3. MVV and PEF were decreased significantly with interaxillary fixtion and occusal splint, and FVC was less decreased. It meant that intermaxillary fixation and occluasal splint induced reduction of respiratory flow significantly, but less reduction of respiratory volume. 4. Intermaxillary fixation and occulsal splint induced increase of airway resistance, decrease of expiratory volume and air flow. So severe respiratory difficulty could be seen to all volunteers who kept intermaxillary fixtion and occusal splint. 5. In classification of respiratory difficulty, intermaxillary fixation with occulsal splint induced complex respiratory difficulty more than intermaxillary fixation only did. From the above results, doctors who care patients kept intermaxillary fixation and occusal splint should be aware of respiratory depression caused by these treatment.

• 대한치과보철학회지
• /
• 제27권2호
• /
• pp.173-187
• /
• 1989

The purpose of this study was to evaluate the effects of stabilization occlusal splint by using a simplified condylar path recorder and a dental sound checker. For this study, 11 subjects (10 men and 1 woman) with TMJ disorder were selected from students at Chosun University, School of Dentistry. And they were treated with the stabilization occlusal splint. The condylar movement and the TMJ sound of each subject were recorded and analyzed by using a simplified condylar path recorder and a dental sound checker. The obtained results were as follows: 1. No statistically significant reduction of reduced PRI scores occurred before and immediately after wearing of stabilization occlusal splint. 2. The reduced PRI scores after wearing of stabilization occlusal splint showed statistically significant reduction with the lapse of time. 3. After stabilization occlusal splint therapy, Fisher angle and Bennett angle had almost no change. 4. TMJ sound disappeared in 4 out of 11 subjects.

• Journal of Oral Medicine and Pain
• /
• 제18권2호
• /
• pp.71-79
• /
• 1993

Many types of occlusal splints are used for treatment of craniomandibular disorders. Most widely used splint among them is flat-type centric relation splint. Insertion of splint into the mouth may cause increasing of vertical dimension, masticatory muscle realignment and rearrangement of maxillo-mandibular relationship, so as a result of splint treatment, occlusal relation may vary whether you like it or not. From this point of view, occlusal state of patient shold be frequently monitored to prevent undesired or harmful effect during occlusal splint therapy. The purpose of this study was to investigate the effect of occlusal splint, especially centric relation splint, on the occlusal contact state after 3 months treatment. 32 patients with craniomandibular disorders who had unilateral symptoms participated in this study. To observe and record occlusal contact state, the author used T-Scan system (Tekscan Co. U.S.A.) at both pretreatment and posttreatment. The recorded date were analyzed with regard to contact number, contact force and contact time, change of anterior tooth contact and coincidence of first contact point with affected side were observed, too. Aan last, the subjects were divided into 2 groups and compared, according to average value of VAS index, with respect to joint pain, sound and limitation of movement, respectively. The collected date were statistically processed with SPSS and the result as follows : 1. Total occlusal contact number and force were not changed by occlusal splint therapy but total occlusal contact time decreased slightly. 2. There was a tendency of increasing number of subjects with anterior tooth contact after treatment and change of first contact point side were observed in as many as 40.6% of subjects. 3. There were no difference between higher and lower group of VAS index, and between pretreatment and posttreatment in each group, either.

• 한국전문물리치료학회지
• /
• 제15권4호
• /
• pp.43-49
• /
• 2008

The objective of this study was to compare the differences on the activity and power of the wrist flexors and extensors in subjects before the use of a wrist extension splint, after nighttime wearing of the splint, and after daytime wearing of the splint. Ten healthy male and ten healthy female students (mean: $22.4{\pm}1.2$ years old) volunteered to wear custom-made wrist splints either during the night or during the day, The hand force of the wrist flexor and extensor, and grip force were measured by PowerTrack II and Dynatron, respectively. At the same time, the activities of the wrist flexor and extensor were recorded by' surface electromyography. The maximal hand force and motor unit recruitment of the flexor carpi ulnatis (FCU) increased significantly (p<.05) when tile subjects wore the wrist splints during the daytime, but the maximal hand power of the FCU decreased with nighttime use of the splints. The maximal hand power and motor unit recruitment of the extensor carpi radialis (ECR) and the ECR/FCU ratio decreased both during nighttime and daytime use. The decrement of the ECR/FCU ratio was significant (p<.05). Wearing a wrist extension splint during nighttime led to the maintenance of a lengthened position of the wrist flexor, resulting in the wrist flexor becoming weak. Wearing a wrist extension splint during the day induced the wrist flexors to be greater. In healthy people, the imbalance between the wrist flexors and extensors may be caused by the use of a wrist extension splint. This study indicates that therapists have to consider whether a splint will be effective, as well as the wearing time, when prescribing splints to people with problems of the musculoskeletal system.

• 디지털융복합연구
• /
• 제16권7호
• /
• pp.511-516
• /
• 2018

외상성 뇌손상 환자에게 일반적인 형태의 짧은 엄지보조기(thumb splint)와 헬스장갑을 수정하여 만든 장갑형 보조기를 적용하여 손기능과 기능적 과제 수행에서의 효과를 알아보고자 하였다. 대상자는 외상성 뇌손상 1인을 대상으로 하였고 개별실험연구 방법 중 동시중재교차 연구설계를 적용하였다. 짧은 엄지보조기와 맞춤 제작한 장갑형 보조기를 이용한 중재의 결과는 보조기를 적용하지 않은 손과 비교하였을 때 즉각적인 손기능의 향상이 있었으며 두 가지 보조기 중에서는 장갑형 보조기를 사용하였을 때 기능적 과제에서 더 유용하였다. 외상성 뇌손상 환자가 가지는 손기능 장애의 작업치료중재로써의 보조기가 효과적임을 확인할 수 있었고 개인별 특성에 맞춘 보조기 적용의 필요성을 확인할 수 있었다. 앞으로 유사한 대상자들에 대한 다양한 상태에서의 보조기 적용에 대한 연구가 필요하다.

• 대한장애인치과학회지
• /
• 제10권2호
• /
• pp.89-92
• /
• 2014

상악 전치부 완전탈구를 주소로 내원한 지적 장애를 동반한 뇌병변 장애를 가진 25세 환자에서 재식 후 구치부 bite block을 추가한 vacuum-formed splint을 이용한 교합 안정술을 통하여, 외상 치아의 동요도 감소 및 교합안정을 이루는데 도움이 될 것으로 사료 된다.

• Journal of Oral Medicine and Pain
• /
• 제16권1호
• /
• pp.25-32
• /
• 1991

The author studied the changes of electromyographic activities of the masseter and anterior temporal muscles during maximal clenching before and after stabilization splint wearing. It also studied the changes of the symmetry of the muscle activity during maximal clenching. For this study, 15-healthy-female-students were selected. The obtained results were as follows : The EMG activities of right and left anterior temporal muscles and right masseter muscle during maximal clenching immediately after wearing of the stabilization splint were not changed compared with before wearing of the stabilization splint. The EMG activities of right and left masseter and anterior temporal muscles during maximal clenching were significantly increased after 1 week and 4 week-use of the stabilization splint(p<0.01). The asymmetric indices of the EMG activities of right and left masseter and anterior temporal muscles during maximal clenching immediately after wearing of the stabilization splint were not changed compared with before wearing of the stabilization splint. The asymmetric indices of the EMG activities of right and left anterior temporal muscles during maximal clenching were significantly decreased after 1 week and 4 week use of the stabilization splint(p<0.01). and that of masseter muscles showed a decreased tendency but there were no significant differences(p>0.05).

• 한국전문물리치료학회지
• /
• 제5권2호
• /
• pp.39-46
• /
• 1998

Thumb adduction is an abnormal pattern typically noted in children with spastic cerebral palsy. This abnormal pattern can limit hand function, specifically in the type and quality of prehension pattern used and in the coordination of release. This ABAB single-subject research was designed to examine the effects of short thumb opponens splint on hand function in cerebral palsy. The subject was a 4 years and 8 months old boy with right upper extremity spasticity. The child was fitted with a short thumb opponens splint, which was worn for 8 hours per day during the daytime. Two different measures were used: (a) prehension component scores; (b) Bruininks-Oseretsky test of motor proficiency. Data was collected three times a week for 10 weeks. Visual analysis of data indicate that after the application of a short thumb opponens splint, improvements were noted in the prehension pattern and fine motor functional task. The results of this study suggest that short thumb opponens splint may prove efficaciousness in the treatment of the child with cerebral palsy.