• Maxillofacial Plastic and Reconstructive Surgery
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• 제18권1호
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• pp.78-86
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• 1996

This is a retrospective study of 31 patients, who were diagnosed as bilateral TMJ internal derangement in consequence of magnetic resonance imaging (MRI) of the temporomandibular joint (TMJ) at Department of Dentistry, Ajou University Hospital, and who were compared clinical findings with radiological findings. The results obtained were as follows. 1. The average of the patients of bilateral TMJ internal derangement was 27.3 years with a range from 12 to 74 years, and 93.6% of the patients were yonger than 40 years of age. The male-female ratio was 1 : 6.8, and the females of $20{\sim}29$ years were most common in 35.5%. 2. In the patients of bilateral TMJ internal derangement, the patients who complained clinical symptoms bilaterally were 38.7% and the patients who complained clinical symptoms untilaterally were 61.3%. 3. The most common disc position of bilateral TMJ internal derangement was anterior disc displacement without reduction on both sides in 38.7%. The most common disc configuration of bilateral TMJ internal derangement was biconcave on both sides and amorphous on both sides in closed mouth, and was amorphous on both sides in open mouth. 4. In the patients of bilateral TMJ internal derangement, the joints which really showed clinical symptoms were most common in anterior displacement without reduction of 48.9%.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제16권2호
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• pp.157-161
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• 1994

이상에서 저자들은 하악관절과두와 유사한 형태를 보이는 편측성과 양측성 오훼돌기 변형증의 가각의 원인, 성장형태, 발현연령과 성별 및 발생기전등에 대해서 문헌 고찰을 해보 았다. 본 증례에서도 정확한 원인은 알 수 없지만 환자의 과거 병력상 우축 악관절의 외상으로 추정된다. 외고작으로 exploration시 coronoidotemporal area에서 또 다른 관절의 양상을 보여 주어 이중관절을 이루고 있었으며 오훼돌기의 절제와 함께 물리치료 후 환자는 개구시 악골의 심한 우측 악관절의 관절잡음도 들리지 않았다. 현재 환자에게서 볼 수 있는 안면비대칭은 향후 주기적인 관찰과 성장 여력에 의해 개선이 기대되지만 추후 악교정 수술이 필요할 수도 있을 것으로 사료된다.

• 한국임상수의학회지
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• 제25권6호
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• pp.545-548
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• 2008

A 3-year-old castrated male Siberian husky was presented for evaluation after being hit by a car. On physical examination, the dog showed open-mouth, displacement of mandible and hypersalivation with blood ting. The base of tongue was transected almost 80% on the bias from right dorsal side to the left ventral side. Radiography demonstrated separation of mandible symphysis, and fracture of right condyle and vertical ramus. After debridement of the necrotic tissue, tongue apposition with simple interrupted suture was performed. Mandibular symphysis, condyle and mandibular vertical ramus fractures were fixed using pin, cerclage wire, T-plate, and K-wires. The mouth was irrigated daily using chlorhexidine after surgery. The sutures that were loose here or untied at tongue were re-sutured under sedation. The transected tongue was healed and recovered its normal movement after 6 weeks.

• Journal of Oral Medicine and Pain
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• 제43권4호
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• pp.147-151
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• 2018

Disuse atrophy involves gradual muscle weakening due to inadequate usage and can cause temporomandibular disorder (TMD). A 45-year old man with TMD symptoms on the left side, who had disuse atrophy of the masticatory muscles on the right side following surgical removal of a trigeminal schwannoma on the right side, first visited the Department of Orofacial Pain and Oral Medicine at Kyung Hee University Dental Hospital with left jaw pain and difficulty in opening mouth and chewing. He had been experiencing difficulties in cognitive function, decrease in visual acuity, impaired speech, and writing deficits after brain surgery. Furthermore, he complained of abnormal occlusion on the right side, which interfered with his ability to chew comfortably and open his mouth effectively. Herein, we describe a contralateral TMD case due to ipsilateral disuse atrophy after brain surgery for a trigeminal schwannoma and our successful treatment with medication, physical therapy, and stabilization splint.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제50권3호
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• pp.166-169
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• 2024

Ankylosis of the temporomandibular joint (TMJ) is a condition in which the mandibular condyle fuses with the mandibular fossa through fibrous or bone tissue. It is a debilitating pathology that interferes with chewing, speaking, and oral hygiene. Currently, alloplastic reconstruction is considered the gold standard for treating severely compromised TMJs, such as in ankylosis. The article describes a patient with a history of facial trauma, with bilateral ankylosis of the TMJs, inability to open his mouth, and poor dental condition. Due to a long period of immobilization of approximately 40 years, the initial treatment plan was to remove the ankylosis bilaterally and install customized PMMA (polymethylmethacrylate) spacers. The patient gained mouth opening and improved chewing quality with one year of customized spacer use prior to definitive alloplastic replacement with stock-type TMJ prostheses. Customized joint spacers are a provisional treatment option when definitive alloplastic reconstruction is not indicated. Spacers provide the patient with progressive jaw function and mobility gains.

• 치과방사선
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• 제19권1호
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• pp.7-18
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• 1989

The authors analyzed the clinical findings, radiological findings and their correlations in the temporomandibular joint disorders. The results were as follows: 1. The most prevalent age group was in the first decade, then the second decade and the third decade. Female were more common with a ratio of 3.4:1. 2. The most common clinical findings was the pain on open mouth position (42.3%), then came the clicking and limitation of mouth opening. 3. The most common bone change on the condyle side was the erosion, then came the flattening, the osteopyte and the sclerosis in that orders. 4. In the case of the crepitus, the coarse crepitus showed more radiological change than the fine crepitus. The 27% of the patients with crepitus showed the bone change and the patients with crepitus showed more bone change than any other clinical symptoms. 5. In the case of the mouth opening limitation, the evaluation of the translatory movement by transcranial projection was in accordance with the clinical evaluation. 6. The correlation between the clinical symptom and the condylar position within the mandibular fossa was not present and in the case of diagnosis of disc displacement, the transcranial projection seemed not to be able to substitute for the arthrography. Radiographically, the most prevalent age group which showed the bone change was in the first, the second and the third decade. And the bone change seemed to have no relationship with aging.

• 한국조리학회지
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• 제22권5호
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• pp.106-116
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• 2016

본 연구에서는 노년층의 라이프스타일이 프랜차이즈 레스토랑의 선택속성이 얼마나 영향을 끼치는지 측정하였다. 그리고 구전의도가 노년층의 라이프스타일과 프랜차이즈 레스토랑의 선택속성 사이에서 어떤 영향을 끼치는지 측정하였다. 연구 결과, 첫째, 노년층들의 라이프스타일의 하위변수인 외향적, 개방형, 진보형, 미래 지향형 활동 4가지를 변수로 설정하였다. 그 결과, 외향적(${\beta}=.463$, p<.001), 개방형(${\beta}=.132$, p<.001), 진보형(${\beta}=.150$, p<.001), 미래지향적(${\beta}=.320$, p<.001)로 종속변수인 프랜차이즈 레스토랑의 선택속성에 대하여 모두 유의한 정(+)의 영향관계가 있는 것으로 분석되었다. 둘째, 조절변수인 구전의도가 추가된 2단계 모형에서는 구전의도의 추가로 인한 설명력의 증가는 0.1%이고, 이에 대한 F=147.556(p<0.01)로 설명력의 증가로 2단계 역시 유의적으로 나왔다. 조절효과를 검증하는 상호작용항들이 추가로 들어간 3단계에서는 '노년의 라이프스타일${\times}$구전의도'의 추가적인 투입으로 인한 설명력의 증가는 0.5%이고, 이에 대한 F=82.987(p<0.01)로 조절효과는 유의적으로 나왔다. 노년의 라이프스타일과 구전의도의 개별적인 조절효과를 보면 미래적${\times}$구전의도는 유의적인 정(+)의 영향력이 있었고, 또한 외향적${\times}$구전의도는 유의적인 부(-)의 영향력이 있었다.

• 한국조경학회지
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• 제40권2호
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• pp.74-85
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• 2012

우리나라의 스키장들도 경쟁이 심해져 재방문비율을 높이거나 긍정적 구전을 통해 새로운 방문자를 유치해야 하는 상황이 되었다. 본 연구는 스키리조트 방문자들을 대상으로, 가치, 만족 및 자아일치성이 재방문의도와 구전의도에 미치는 영향력을 파악하며, 자기조절초점으로 집단을 세분해 집단 간에 독립변수들의 영향력에 차이가 있음을 확인함으로써 스키장들이 경쟁력 강화할 수 있는 실행방향을 제시하고자 하였다. 현지에서 수집한 자료를 회귀분석한 결과, 사용한 독립변수들은 모두 재방문의도와 구전의도에 영향을 주었다. 만족은 가장 영향력이 큰 변수이었다. 자기조절초점으로 구분한 집단 간에는 재방문의도와 구전의도에 영향을 미치는 변수의 종류가 달라 이 변수가 효과적인 시장세분변수라는 것이 확인되었다. 재방문의도의 경우, 향상초점 집단은 만족만이 영향을 주었으나 예방초점 집단에서는 만족과 함께 자아일치성도 영향을 주었다. 구전의도의 경우에는 향상초점집단에서 자아일치성을 제외하고는 두 집단에서 모든 독립변수들이 영향을 주었다. 분석결과를 바탕으로 방문자들을 유지 또는 유치할 수 있는 실행가능한 몇 가지 대안을 제시하였다.

• 경영과정보연구
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• 제29권4호
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• pp.67-88
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• 2010

본 연구의 목적은 인터넷 오픈마켓에서 제공하는 각종 정보에 대한 만족도가 고객 신뢰 및 미래행동 의도에 미치는 영향관계를 살펴보는 것이다. 이러한 연구목적을 달성하기 위하여 관련 선행문헌에 관한 종합적 고찰결과를 토대로 오픈마켓의 중요한 정보 만족도 요인으로 판매자 정보 만족도, 상품 정보 만족도, 거래절차 정보 만족도 등의 세 가지 요인을 도출하였고, 이들 오픈마켓의 정보 만족도 요인들이 고객 신뢰를 거쳐 재구매의도 및 호의적 구전의도와 같은 미래행동 의도를 형성하게 되는 구조적 관계에 관한 연구모델과 가설을 수립하였다. 본 연구의 실증분석 결과를 요약해 보면 다음과 같다. 첫째, 오픈마켓에서 제공하는 판매자 정보, 상품 정보, 거래절차 정보 등 세 가지 정보 만족도 요인 모두가 고객 신뢰에 긍정적인 영향을 미치는 것으로 밝혀졌다. 둘째, 오픈마켓에 대한 고객 신뢰는 재구매의도에는 긍정적인 영향을 미치는 반면 호의적 구전의도에는 별다른 영향을 미치지 못하는 것으로 밝혀졌다. 가설검정 결과를 토대로 논의를 수행하였으며, 오픈마켓 운영자 및 입점 판매자의 고객 신뢰 확보 및 성과 향상 방안을 제안하였고, 관련 분야 연구자들의 추가적 연구 수행을 위한 유의미한 시사점을 제공하였다.

• 대한두개안면성형외과학회지
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• 제10권1호
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• pp.33-36
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• 2009

Purpose: Fractures of the mandibular condylar area are common injuries that account for 29% to 40% of fractures of the facial bones and represent 20% to 62% of all mandibular fractures. Currently 3 main methods are being used in the treatment of mandibular subcondylar fractures: closed reduction; open reduction and internal fixation; Endoscopic reduction and internal fixation. Each method has its proponents and opponent as well as advantages and disadvantages, and indications for each vary among surgeons. There are six approaches of open reduction: submandibular, retromandibular, preaurilcular, postauricular, intraoral, transparotid approach. Among them, transparotid approach has been described for subcondylar exposure with dissection in the direction of facial nerve fibers to expose the bone through the parotid gland. This approach carries the risk of a parotid glandular fistula as well as facial nerve injury but has the advantage of being directly over the fracture site. We report safety and efficacy of surgical treatment using a transparotid approach for direct plating. Methods: A 43-year-old man sustained multiple facial bone fractures by driver traffic accident. Mandibular subcondyle was fractured and dislocated internally. We performed open reduction and internal fixation by transparotid approach. Fractured site was fixed by titanium mini plate & screw. We applicated arch bar for approximately 3 weeks. Results: Follow-up length was about 5months. Scar of surgical incision was indistinct, there was no symptoms and signs of facial nerve and parotid gland injury, and maximal mouth opening was measured 49.5 mm. Conclusion: Transparotid approach has high risks of facial nerve and parotid gland injury, but paradoxically it is the most effective technique in saving facial nerve. Open reduction and internal fixation of mandibular subcondylar fracture by transparotid approach with precise and versed procedure, best outcome can be expected.