1/18. Highly aggressive brown tumour of the maxilla as first manifestation of primary hyperparathyroidism.A case is presented of a 62-year-old man with a right maxillary swelling for the previous three months. The lesion was expansive and osteolytic, with invasion of the adjacent maxillary sinus, nasal and pterygomaxillary fossae and floor of the orbit. histology revealed the presence of an intrabony giant cell lesion. blood tests demonstrated elevations in calcium (16.2 mg/dl) and parathyroid hormone (PTH) concentrations (841 pg/ml). This suggested the diagnosis of hyperparathyroidism initially manifesting as a brown tumour of the maxilla. Posterior explorations confirmed the existence of an underlying ectopic parathyroid adenoma as the cause of the condition.- - - - - - - - - - ranking = 1keywords = floor (Clic here for more details about this article) |
2/18. Follicular or dentigerous (tooth-containing) cyst in the premaxilla of an otherwise edentulous 65-year-old man.A unilocular follicular or dentigerous cyst (FDC) with a diameter of 12 mm was observed incidentally in the premaxilla of a midsagittal section of the head of a 65-year-old cadaver. The mucosal lining of the cyst was grey in color and granular in texture: the osseous walls had a thickness of less than 1 mm. In the floor of the cyst, a slender, fully developed incisor tooth was fixed in a horizontal position. The alveolar processes of the maxilla and mandible were completely edentulous. Postmortem computer tomography showed the cyst in an osteolytic lesion of the premaxilla, and histology revealed a lining of non-keratinized stratified squamous epithelium supported by a lamina propria of dense connective tissue. copyright Wiley-Liss, Inc.- - - - - - - - - - ranking = 1keywords = floor (Clic here for more details about this article) |
3/18. Simultaneous cortex bone plate graft with particulate marrow and cancellous bone for reliable closure of palatal fistulae associated with cleft deformities.OBJECTIVE: The purpose of this study was to evaluate the effectiveness of simultaneous cortex bone plate (CBP) graft with particulate marrow and cancellous bone (PMCB) graft for reliable closure of palatal fistulae associated with alveolar clefts. DESIGN: Following standard secondary bone graft preparation of the cleft site, CBP harvested from the medial iliac crest was inserted into the palatal deficiency. This was followed by suturing the palatal mucosa. PMCB was then packed between the cortical bone and the reconstructed nasal floor. SETTING: Ten consecutive patients with palatal fistula were operated on at tokyo Medical and Dental University Hospital from 1998 to 2000. Primary palatal repair was performed in 7 out of 10 patients at our center and in 3 out of 10 patients at other hospitals. patients: Ten patients (6 boys and men, 4 girls and women) with a palatal fistula associated with an alveolar cleft were studied. Ages ranged from 12 to 26 years. INTERVENTIONS: All patients underwent simultaneous CBP graft with PMCB graft for closure of palatal fistula under general anesthesia. RESULTS: Complete closure of palatal fistulae were obtained in 8 out of 10 cases. A very small asymptomatic fistula remained in one patient. Total necrosis of the labial flap with a residual palatal fistula occurred in one patient. CONCLUSIONS: Simultaneous CBP graft with PMCB graft could be more reliable than PMCB alone for closure of a cleft associated palatal fistula.- - - - - - - - - - ranking = 1keywords = floor (Clic here for more details about this article) |
4/18. Case report: a large radicular cyst involving the entire maxillary sinus.cysts of the maxillary sinus of odontogenic origin have been well-documented in the literature. Most of these lesions involve the apex of the offending tooth and appear as a well-defined periapical radiolucency. Presented here is a case of an unusually large lesion, which involved the entire maxillary sinus and extended into the floor of the nose. The lesion also caused paresthesia on the affected side. The lesion was removed with conservative treatment without any postoperative complications.- - - - - - - - - - ranking = 1keywords = floor (Clic here for more details about this article) |
5/18. Reconstruction of the severely resorbed atrophic edentulous ridge of the maxilla and mandible for implant rehabilitation: report of a case.We describe a case with a severely resorbed atrophic edentulous ridge in both the maxilla and mandible. The maxilla was reconstructed using a sinus-lifting procedure and onlay bone graft. The mandible was reconstructed by anterior osteotomy with an interpositional sandwich iliac bone graft at the symphysis area, subperiosteally with iliac bone chips mixed with hydroxylapatite bilaterally at the posterior atrophic ridge, and vestibuloplasty with a split thickness skin graft (STSG). After full-mouth implant rehabilitation, a 5-year follow-up of this case shows a satisfactory result.- - - - - - - - - - ranking = 0.11536371548516keywords = mouth (Clic here for more details about this article) |
6/18. Serial observation of asymmetry in the growing face.Three children suffering from facial asymmetry were observed annually using facial stereophotogrammetry before, during, and after their general skeletal adolescent growth spurt. Stereophotogrammetry allows accurate three-dimensional measurements between identifiable facial landmarks. Five pairs of bilateral parameters connecting external canthi and angles of the mouth to alae and tip of nose, and to each other, allowed a positive sign (right-side larger) or a negative (left-side larger) assessment of parameter asymmetry. Their total, taking sign into account, assessed mid-facial asymmetry. Serial observation showed that: (1) in patient no. 1 suffering from post-traumatic condylar hypoplasia, the facial asymmetry resolved; (2) in patient no. 2 suffering from unilateral facial hypoplasia, the asymmetry, which was severe, reduced with adolescence, but did not resolve; (3) in patient no. 3 suffering from fibro-osseous dysplasia of left maxilla, the asymmetry was reduced by surgery, but the full effects of the surgery were not measurable until over 1 year after operation; subsequently, the asymmetry began to increase again.- - - - - - - - - - ranking = 0.11536371548516keywords = mouth (Clic here for more details about this article) |
7/18. Solid variant of odontogenic keratocyst.A case of an unusual lesion from the maxilla is presented. Macroscopically, the lesion was solid and histologically consisted of 'multiple separate keratocysts' of varying size that infiltrated into the surrounding bone and soft tissues. Panoramic image and CT scans showed a multilocular honeycomb ill-defined radiolucency with infiltration into the maxillary sinus and floor of orbit. This lesion should be differentiated from similar odontogenic lesions, such as keratoameloblastoma and papilliferous keratoameloblastoma. As there was no evidence of follicles, islands of ameloblastoma, or papilliferous structures in the entire specimen, the lesion could not be diagnosed as either a keratoameloblastoma or a papilliferous keratoameloblastoma. The invasive and destructive growth behavior, the histopathological features, and the histochemical pattern of the collagen stroma imply that this solid lesion is a neoplasia. It is suggested that the proper term for this lesion is solid variant of odontogenic keratocyst.- - - - - - - - - - ranking = 1keywords = floor (Clic here for more details about this article) |
8/18. Extensive maxillary sequestration resulting from mucormycosis.mucormycosis is an invasive and potentially lethal infection caused primarily by fungi of the order mucorales. An ulcer or extraction in the mouth can be the port of fungal invasion, particularly when the patient is immunocompromised. Early recognition and aggressive treatment have reduced the mortality and morbidity. We present a case of oral mucormycosis with extensive maxillary osteonecrosis that is of interest because the patient ignored the initial warning signs and was rescued from the fulminating stage by thorough debridement and medical treatment.- - - - - - - - - - ranking = 0.11536371548516keywords = mouth (Clic here for more details about this article) |
9/18. Odontogenic keratocyst in maxillary sinus with invasive behaviour.Odontogenic keratocyst is a cystic lesion characterized by a high rate of recurrence. This report describes a rare case of ciliated epithelium-lined odontogenic keratocyst in the maxilla of a 27-year-old female. Panoramic radiography showed a lytic lesion on the right maxilla associated with an impacted molar tooth. Computerized tomography image revealed the involvement of the lesion with the right maxillary sinus, destroying the sinus floor. Histopathologically, the typical keratinized epithelial-lined cyst of odontogenic keratocyst abruptly changed into a ciliated epithelium, suggesting the fusion of both these epithelia rather a metaplastic transformation. The biological behaviour of odontogenic keratocysts is discussed.- - - - - - - - - - ranking = 1keywords = floor (Clic here for more details about this article) |
10/18. Restricted opening of the mouth with an extra-articular cause in children.Restricted opening of the mouth with an extra-articular cause (ROMEC) can have very different aetiologies. A series of 6 children, who have been operated on under 4 different diagnoses, are presented. Excluded are common problems such as recent trauma and posttraumatic scarring, craniomandibular dysfunction or elongated coronoid process, and also tumours. Problems of establishing the diagnosis, surgical treatment, postoperative physiotherapy and timing are discussed. It is shown that none of the cases is a perfect result, some outcomes are even very disappointing. It is therefore concluded that absolute trismus should be treated independently of age. The result expected will be mediocre. For final correction it is suggested that the operator should wait preferably until the second growth spurt has passed. The same goes for children presenting primarily with a mouth opening greater than 20 mm.- - - - - - - - - - ranking = 0.69218229291099keywords = mouth (Clic here for more details about this article) |
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