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Volume 54, Issue 7
Displaying 1-13 of 13 articles from this issue
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Toshihiro KIKUTA, Isao FURUTA, Nobuo YOSHIZAWA, Makoto OHNISHI, Hideki ...2008 Volume 54 Issue 7 Pages 400-408
Published: July 20, 2008
Released on J-STAGE: April 22, 2011
JOURNAL FREE ACCESSThe Japanese Association of Oral and Maxillofacial Surgeons (JAOMFS) declared the promotion of anti-smoking on October 23, 2003. We carried out two kinds of questionnaire surveys: one examined the attitudes of training hospitals towards smokers in August 2007, and the other assessed the smoking habits of JAOMFS members in October 2006.
Results: 1. In the first survey, 73.5%(180/245) of the training hospitals responded. 92.2%(166/180) of the hospitals had already set up full no-smoking areas only inside of the hospital buildings. General hospitals with Departments of Dentistry and Oral Surgery had the highest rate of prohibition (94.4%). Most of the training hospitals of JAOMFS had tried to prohibit smoking inside of the hospital buildings since 2003. 52.2%(94/180) of respondents designated full no-smoking areas in all medical sites and buildings. Hospitals with both medical and dental faculties with Departments of Dentistry and Oral Surgery had the highest prohibition rate (64.7%). Dental hospitals had the lowest prohibition rate (17.4%). The attitude toward smoking prohibition in medical sites and buildings had gradually intensified since 2003 at several training hospitals.
2. The second survey had a response rate of 4.9% of all members (8547). Smokers accounted for 10.5%(44/419) of the respondents. The male-female ratio of all respondents was 9 to 1. The rate of smoking among males was 11.0%(41/374), and that among females was 7.5%(3/40). The highest rate of smoking was among members less than 6 years after joining the JAOMFS (22.2%) and among members in their thirties (18.1%). The smoking rate was highest among members who worked at dental hospitals (19.0%). The rate of awareness of our anti-smoking policy was 82.9% among the respondent members. 99.0% of the members were aware of the relation between smoking and diseases of the oral mucosa.View full abstractDownload PDF (1466K) -
Risa UYAMA, Koji TAKAHASHI, Kaoru HIRANO, Miki FUKAZAWA2008 Volume 54 Issue 7 Pages 409-412
Published: July 20, 2008
Released on J-STAGE: April 22, 2011
JOURNAL FREE ACCESSWe desribe a patient with pathological snoring caused by bilateral mandibular torus.
A 35-year-old woman was referred to our hospital for treatment of mandibular torus. She had had pathological snoring and daytime sleepiness since she was in junior high school. Pathological snoring persisted even after uvulopalatopharyngoplasty, performed when she was 34 years old. The patient had also received orthodontic treatment to correct tooth alignment and was introduced to our hospital for removal of the bilateral mandibular torus. Immediately after surgery, pathological snoring and daytime sleepiness improved. As of 9 years after the surgery, there has been no recurrence of pathological snoring.View full abstractDownload PDF (2709K) -
Yasushi HARIYA, Takashi SEKIGUCHI, Michiko OKITA, Masashi HARADA, Tomo ...2008 Volume 54 Issue 7 Pages 413-417
Published: July 20, 2008
Released on J-STAGE: April 22, 2011
JOURNAL FREE ACCESSBisphosphonate-related osteonecrosis of the jaws (BRONJ) has a major negative effect on the quality of life of patients. However, there is still no consensus on effective treatment strategies for BRONJ. We report a case of BRONJ that was treated surgically.
A 57-year-old woman who was given a diagnosis of breast cancer with multiple metastasis was referred to our clinic for evaluation of swelling of the left upper gum. Clinical examination revealed a fistulous tract with pus discharge that had developed after extraction of the upper left first molar at a dental clinic. The clinical diagnosis was an infectious bone lesion associated with bisphosphonate therapy. Conservative therapy with local irrigation and antibiotics was performed, but the lesion progressed and showed ulceration with exposed bone. We therefore determined that surgical intervention should be performed to remove the necrotic bone.
A CT revealed extensive osteonecrosis of the maxila and a well demarcated interface between the necrotic and vital bone.
The BRONJ was completely removed with sequestrectomy of the maxilla. Pathological evaluation confirmed necrosis of the maxilla. No evidence of metastatic disease was detected. The patient has been followed for 5 months since surgery and continues to do well.View full abstractDownload PDF (4249K) -
Keita TANABE, Makoto ONISHI, Kazuhito HORINO2008 Volume 54 Issue 7 Pages 418-422
Published: July 20, 2008
Released on J-STAGE: April 22, 2011
JOURNAL FREE ACCESSPublished reports on nail-gun injuries to the head are rare. We describe the case of a penetrating cranio-submental injury with internal carotid arterial stenosis. A 30-year-old man sustained a penetrating head injury inflicted by a nail gun. On admission, he was conscious and had no neurological deficits. X-ray films of the skull showed that the nail had penetrated deeply into the left lacerated foramen from the submental space. CT scans showed no evidence of intracranial hemorrhage, but angiography suggested constriction of the left internal carotid artery by the nail. On the night of admission day 1, the patient had right hemiparesis with a disturbance of consciousness caused by the constriction. On 2nd day after the penetrating injury, his condition improved considerably by intravenous administration of heparin and edaravone.
On the same day, the nail was easily and safely removed from the oral floor after coil embolization of the left internal carotid artery. On the 18th day, the patient was discharged with slight aphasia.View full abstractDownload PDF (3973K) -
Kensuke KAWADA, Tadakazu KAWAHARA, Toshiyuki AKIMORI, Tomoko YAMAGUCHI ...2008 Volume 54 Issue 7 Pages 423-426
Published: July 20, 2008
Released on J-STAGE: April 22, 2011
JOURNAL FREE ACCESSOral mucosal lesions associated with foreign body injuries can have various origins, but traumatic lesions of the oral mucosa caused by other organisms are rare. Such cases thus require special knowledge for diagnosis. We report a case of oral stings from spermatophores of Todarodes pacificus, the Pacific squid. The patient was a 31-year-old woman who cooked the internal organs of a raw T. pacificus for lunch. She experienced a sharp pain on the tongue and buccal mucosa when eating the organs. On checking the oral cavity, she identified multiple white objects with a worm-like appearance sticking into the tongue and oral mucosa. Attempts to remove these objects herself were unsuccessful. She then visited the emergency department of our hospital. We examined the oral cavity and found multiple white objects appearing to be parasitic worms sticking into the tongue and oral mucosa. Attempts to remove the objects with forceps were unsuccessful because of tight attachment to the mucosa. Removal was thus achieved by making slight incisions under local anesthesia. The specimens showed a white spinate shape and were about 4mm long. Endoscopic examination of the upper digestive tract after treatment of the oral cavity revealed no additional foreign bodies. The final pathological diagnosis was spermatophores of T. pacificus.View full abstractDownload PDF (2149K) -
Ryuhei YAMADA, Osamu ISHIHARA, Ippei OTAKE, Yasuhisa TAMURA, Kotaro SH ...2008 Volume 54 Issue 7 Pages 427-430
Published: July 20, 2008
Released on J-STAGE: April 22, 2011
JOURNAL FREE ACCESSTraumatic aneurysms of the lingual artery are very rare. Since the lesion often causes life-threatening hemorrhage, it is important to make an early diagnosis and perform radical treatment. We report a case of mandibular fracture associated with a traumatic aneurysm of the lingual artery, which was detected on enhanced CT at presentation. We performed transcatheter arterial embolization (TAE) to avoid rupture or leakage of the traumatic aneurysm before operation for the mandibular fracture.View full abstractDownload PDF (2887K) -
Shintaro SUZUKI, Kaeko TAKENAMI, Hisashi FUJINAMI, Isao KOSUGI, Norio ...2008 Volume 54 Issue 7 Pages 431-434
Published: July 20, 2008
Released on J-STAGE: April 22, 2011
JOURNAL FREE ACCESSWe report a case of teratoid cyst of the tongue, which is rare in the head and neck region. A 1-monthold boy presented with a pit of the dorsal surface of the tongue, with exudation of creamy discharge. MM showed a high-signal-intensity mass in the tongue. The lesion was surgically excised under general anesthesia after 7 years. The pathological findings revealed as the teratoid cyst which contained squamous epithelium, sweat glands, sebaceous glands and cartilage. The recurrence was not observed at 6 years after operation.View full abstractDownload PDF (2815K) -
Kazuki IIDA, Hiroki MAKITA, Kazuhiro YONEMOTO, Tomomi YAMASHITA, Makot ...2008 Volume 54 Issue 7 Pages 435-439
Published: July 20, 2008
Released on J-STAGE: April 22, 2011
JOURNAL FREE ACCESSA re-recurrent case of ameloblastoma in an autogenous iliac bone graft is reported. A 49-year-old woman was referred to our department because of swelling and pain in the left side of the mandible. Her past medical history revealed that she had undergone mandibulectomy and reconstruction with antogenous iliac bone grafts two times, 25 and 15 years ago, for a diagnosis of ameloblastoma. Radiographic examination showed an osteolytic lesion in the central area of the grafted bone, and MRI images of the lesion showed low signal intensity on T1-weighted images and high signal intensity on T2-weighted images. An intraoral biopsy was done, and the pathological diagnosis was ameloblastoma. Under general anesthesia, continuous resection of the grafted bone and reconstruction of the mandible with microvascularized fibula bone were carried out. The postoperative course was uneventful.View full abstractDownload PDF (3249K) -
Katsuya TANAKA, Hirokazu YUNOKI, Yuri MUROI, Hideya HAENIWA, Katsuko H ...2008 Volume 54 Issue 7 Pages 440-444
Published: July 20, 2008
Released on J-STAGE: April 22, 2011
JOURNAL FREE ACCESSWe encountered a lesion of the cheek resembling keratocystic odontogenic tumor (KCOT). The lesion measured 30×28mm and was located in the soft tissue of the left cheek, below the parotid papilla. On H-E staining, this lesion histopathologically resembled KCOT of the jaw. Therefore, we examined the expressions of Ki-67 and cytokeratin 17 antigen immunohistochemically. The Ki-67 labeling index in this lesion indicated high cell proliferation (17.1%), and the localization of Ki-67-positive cells and CK17-stained cells mimicked typical KCOT of the jaw. On the basis of these findings, we diagnosed a lesion of the cheek resembling KCOT.View full abstractDownload PDF (3591K) -
Reiko TOKUYAMA, Kazuhito SATOMURA, Tetsuya YUASA, Seikou TATEHARA, Yos ...2008 Volume 54 Issue 7 Pages 445-448
Published: July 20, 2008
Released on J-STAGE: April 22, 2011
JOURNAL FREE ACCESSVerruciform xanthoma of the oral cavity is a rare benign lesion. Histologically, it is characterized by papillary or verrucous proliferation of squamous epithelium and numerous foam cells. This disease was first described by Shafer in 1971. We present a very rare case of a verruciform xanthoma with epithelial dysplasia arising in the buccal mucosa of a 68-year-old Japanese man. The patient referred to our clinic because of a mass in the left buccal mucosa. The lesion was white, and its surface was granulated. The patient had neither tenderness nor any symptoms. The lesion was clinically diagnosed to be a benign tumor, and biopsy was performed. Histopathologically, the tumor consisted of stratified squamous epithelium with dysplasia, hyperchromatism, and parakeratosis and showed elongated rete ridges. Between and under the rete ridges, aggregation of foam cells was observed. Immunohistochemically, cells stained positively for PCNA and Ki-67 in the squamous epithelium with dysplasia. The lesion was diagnosed to be a verruciform xanthoma with epithelial dysplasia. Under local anesthesia, the lesion was excised. The patient has remained free of local recurrence for 2 years after surgery.View full abstractDownload PDF (1890K) -
Takeshi NISHIKAWA, Izumi YOSHIOKA, Kazuhiro TOMINAGA, Hironobu MAEDA, ...2008 Volume 54 Issue 7 Pages 449-452
Published: July 20, 2008
Released on J-STAGE: April 22, 2011
JOURNAL FREE ACCESSA case of schwannoma arising from the dermal branch of the cervical nerve is reported. A 35-year-old man was referred to our hospital, because of a swelling on the left side of the neck. A cystic mass was discovered on CT, MRI, and ultrasound investigations. The lesion was under the sternocleidomastoid muscle, which compressed the carotid artery and internal jugular vein. Because the lesion adhered to the dermal branch of the cervical nerve, it was excised with the nerve. The pathological diagnosis was a schwannoma arising from the transverse nerve because of sensory loss after surgery. It was considered important to detect the nerve of origin intra operatively. He was well without recurrence 18 months after surgery.View full abstractDownload PDF (2796K) -
Naomi ISHIBASHI, Kenji YAMAGATA, Kojiro ONIZAWA, Mei YONEMOTO, Toru YA ...2008 Volume 54 Issue 7 Pages 453-457
Published: July 20, 2008
Released on J-STAGE: April 22, 2011
JOURNAL FREE ACCESSHamartoma is a congenital lesion that is an overgrowth of part of indigenous tissues. A rare case of a leiomyomatous hamartoma arising on the dorsum of the tongue of a 5-year-old boy is presented. His mother noted a painless, well-defined mass on the tongue dorsum at birth, which gradually increased in size with growth. The patient did not have speech, mastication, or swallowing disorders. The mass was clinically diagnosed as a benign tongue tumor and surgically removed under general anesthesia. Histologically, the mass consisted of scattered smooth muscle fibers and indigenous components of the tongue, such as minor salivary glands, striated muscle, and adipose tissue. A capsule of the mass was not found. On the basis of these findings, a leiomyomatous hamatoma was diagnosed histologically. There was no recurrence 7 months after exision.View full abstractDownload PDF (3621K) -
Tadafumi ADACHI, Katsuki YAMAZAKI, Masahiro NAKASHIMA, Tomohiro OTANI, ...2008 Volume 54 Issue 7 Pages 458-462
Published: July 20, 2008
Released on J-STAGE: April 22, 2011
JOURNAL FREE ACCESSCalcium pyrophosphate dihydrate (CPPD) deposition disease is one of the major types of crystalinduced arthritis associated with various pathological symptoms caused by deposition of CPPD in the surrounding tissues of joints. In major joints such as the knees, CPPD deposition disease has been often reported; however, the primary manifestation of CPPD deposition disease in the temporomandibular joint (TMJ) is relatively rare. We report a case of CPPD deposition disease in the left TMJ of a 72-year-old woman. She was referred to our department with a 2-month history of pain and swelling in the left preauricular region. CT and MRI images showed multiple calcified masses in the surrounding tissues in the left TMJ. Splint therapy during sleep was very effective in reducing jaw pain on movement. Because synovial chondromatosis of the left TMJ wassuspected, total extirpation of the calcified masses was performed via a preauricular approach. White, chalky soft masses were removed. Histological examination showed that the crystals were weakly birefringent under polarized light microscopy. A definitive diagnosis of CPPD deposition disease in the left TMJ was made. Six months after surgery, the clinical symptoms are very mild, with inter-incisal opening of 40mm.View full abstractDownload PDF (3094K)
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