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Volume 57, Issue 4
Displaying 1-4 of 4 articles from this issue
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Special reference to odontogenic infection caused by periapical lesions of the maxillary canineYuko IKARUGI, Ray TANAKA, Takafumi HAYASHI2008 Volume 57 Issue 4 Pages 371-378
Published: September 10, 2008
Released on J-STAGE: June 07, 2011
JOURNAL FREE ACCESSPurpose: To estimate the clinical significance of the infraorbital space demonstrated on CT for the diagnosis of odontogenic infection caused by periapical lesions of the maxillary canine tooth.
Materials and methods: We evaluated the radiological appearance of the labial cortical bone and the surrounding soft tissue adjacent to the root apex of the maxillary canine in 12 patients with infraorbital space infection demonstrated on CT. The patients consisted of 6 males and 6 females, and age ranged from 33 to 84 years with a mean age of 58.7 years.
Results: On CT, disruption of the labial cortical bone around the root apex of the maxillary canine accompanied with pathological soft tissue density adjacent to the disrupted cortical bone was observed in all of the cases. Swelling of the facial muscles (levator labii superioris muscle, levator anguli oris muscle) was shown in 6 (50%) of 12 cases. Deviation of the levator labii superioris muscle was demonstrated in 9 cases (75%), whereas that of the levator anguli oris muscle was observed only in 2 cases (17%).
Conclusions: The anatomical appearance of the infraorbital space which is clearly demonstrated on CT might be useful in diagnosing the spread of odontogenic infection caused by periapical lesions of the maxillary canine.View full abstractDownload PDF (3700K) -
Masatoshi CHIBA, Keisuke HIGUCHI, Takemitsu KONDOH, Seishi ECHIGO2008 Volume 57 Issue 4 Pages 379-384
Published: September 10, 2008
Released on J-STAGE: January 31, 2011
JOURNAL FREE ACCESSTooth extraction or pulpectomy sometimes causes damage to the terminal branch of the trigeminal nerve, but the risk of developing neuropathic trigeminal pain (NTP) is very low. Therefore neuropathic pain is unfamiliar to many dentists and presents difficulties in diagnosis and management. The aim of this study was to clarify the picture of NTP provoked by dental treatment.
The causative dental surgery, damaged nerve, pain, abnormal sensation, and psychology of nine NTP patients (all female, mean age of 33.9 years) were retrospectively reviewed. The results were as follows: (1) The causative treatment was tooth extraction in 5 patients, and getting bone from socket, inferior nerve block, cystectomy, and pulpectomy in one patient, respectively. (2) The damaged nerve was the infraorbital nerve in one patient, inferior alveolar nerve in 6 patients, and inferior alveolar nerve and lingual nerve in 2 patients. (3) NTP was spontaneous and provoked pain (allodynia or trigger area) in all patients. Degree of NTP was moderate to severe, the nature of NTP was inexperienced abnormal character, and NTP decreased the quality of life. (4) Hypoesthesia or dysesthesia affected the oral mucosa or skin peripheral to the damaged nerve in 8 patients, and was accompanied by pain in 7 patients. (5) Anxiety or depression was elicited by NTP in six patients.
These clinical findings of NTP were the same as those of neuropathic pain in other sites. The main reason for the diagnostic delay in NTP may be attributed to dentists' lack of awareness of this disease.View full abstractDownload PDF (1266K) -
Kyohei FUJIWARA, Tadafumi ADACHI, Masahiro NAKASHIMA, Mitsunobu KISHIN ...2008 Volume 57 Issue 4 Pages 385-388
Published: September 10, 2008
Released on J-STAGE: January 31, 2011
JOURNAL FREE ACCESSWe report a rare case of gingival hyperplasia associated with mesiodens in the primary dentition of a 1 year 11 month old boy. He was brought to our department with a swelling in the premaxillary region. His mother had already noticed this swelling when he was 3 months old. This swelling was a 10×10×5mm sized polypoidal gingival mass. The dental radiograph showed a toothlike calcified structure just beneath this mass. Because of suspicion of benign palatal tumor associated with calcification, total excision of the mass was performed under general anesthesia with oral intubation. The mass and the tooth-like calcified structure were removed at the same time and the specimen was examined histologically. Microscopically, this mass was composed of numerous interlacing collagen fibers and the calcified mass was diagnosed as an inverted and incomplete mesiodens. Then, a definitive diagnosis of gingival hyperplasia associated with mesiodens in the primary dentition was made. Ten months after surgery, no sign of recurrence has been observed.View full abstractDownload PDF (1523K) -
Akira MATSUO, Hiroshige CHIBA, Hayato HAMADA, Hidetoshi TAKAHASHI, Hir ...2008 Volume 57 Issue 4 Pages 389-396
Published: September 10, 2008
Released on J-STAGE: June 07, 2011
JOURNAL FREE ACCESSWe perform oral examinations for bisphosphonateprescribed patients to detect bisphosphonate-related osteonecrosis of the jaw (BRONJ) at an early stage, in collaboration with breast cancer oncologists at Tokyo Medical University Hospital. In this study, we clinically evaluated the results of oral examinations for the early detection and prevention of BRONJ.
Materials and methods: We performed oral examinations for the past 2 years and 2 months, on 36 patients who had been prescribed bisphosphonate, of whom 23 breast cancer patients who had been examined early were evaluated precisely.
Results: Of 31 patients who were prescribed bisphosphonate, 7 of them were affected by BRONJ but in the other 24 patients bone exposure was not detected during follow-up. The other 5 patients were examined before prescription. Regarding the breast cancer patients, 5 were affected by the BRONJ, but bone exposure was not detected in 18. No BRONJ patient was found to have bone exposure at the first visit. Statistically significant differences were seen between the two groups in terms of oral hygiene and acute transformation of inflammatory dental disease.
Conclusions: It is suspected that acute transformation of inflammatory dental disease is a major factor to induce bone exposure. Oral examinations involve some difficulty, but are important for bisphosphonate-prescribed patients for the early detection and prevention of BRONJ.View full abstractDownload PDF (1178K)
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