Yochanan Ramon

Gingival hyperplasia caused by nifedipine ― A preliminary report

We observed marked gingival hyperplasia, similar clinically and histologically to the hyperplasia caused by 5:5 sodium diphenylhydantoin (Dilantin) during the last 18 months in five patients treated by nifedipine. Histologically, marked epithelial hyperplasia-acanthosis, with moderate inflammatory reaction in the lamina propria, was observed in all the biopsy specimens. Evidence points to a strong relationship between the gingival hyperplasia and the administration of nifedipine.

Gingival fibromatosis combined with cherubism

Abstract In a family of eight children, two boys were affected by idiopathic (hereditary) gingival fibromatosis. One of these boys presented also the classic features of cherubism. The striking findings were a peculiar perivascular arrangement of collagen fibers which compressed the blood vessels in the corium of the gingivae and in the mandibular cherubic bone lesions. Both conditions have been discussed in this article, and speculations have been brought forward concerning the underlying pathologic process. The combined occurrence of idiopathic gingival fibromatosis and cherubism in the same patient apparently has never been reported in the lierature.

Accidental displacement of impacted maxillary third molars

3 cases of accidental displacement of maxillary impacted 3rd molars are presented. 2 were displaced into the maxillary sinus and 1 into the infratemporal fossa. The difficulties in locating these displaced teeth are described and demonstrated on a dry skull model. The mode of treatment is discussed.

Reconstruction of the maxilla with bone grafts supported by the buccal fat pad

In the usual reconstruction of maxillary contour, the grafts are usually exposed to the antral or nasal cavities. This leads to postponed remodelling and a higher rate of resorption and sequestration. To avoid exposure of the grafts, the buccal fat pad is rotated into the maxillary sinus and lined to the bone grafts. The vascularized buccal fat pad not only contributes to a better integration of the bone grafts but also enables the restoration of normal physiologic function of the maxillary sinus.

Mandibular condylosis and apertognathia as presenting symptoms in progressive systemic sclerosis (scleroderma): Pattern of mandibular bony lesions and atrophy of masticatory muscles in PSS, presumably caused by affected muscular arteries

Apertognathia (open bite) is usually a developmental deformity of the jaws and the dentoalveolar segments in childhood and adolescence. The sudden insidious appearance of an open anterior bite in adult life is extremely rare and may be due to pathologic condylar fractures (with displacement) or to bilateral condylosis. To the best of our knowledge, only five cases of bilateral mandibular condylosis in progressive systemic sclerosis (PSS) have been reported in the literature, and the present article deals with the sixth known case. In the 22-year-old woman presented in this article the mandibular manifestations were the very early symptoms of PSS, which had a very rapid fatal course. A review of the literature is presented, and attention is called to the serious significance of sudden apertognathia. PSS is a chronic generalized disease of the small arterial vessels and the mesenchyme tissues of unknown origin. The musculoskeletal system is often involved, and the disease may affect the mandible, causing bony erosions, osteolysis, and atrophy of the masticatory muscles. It is believed that these bony lesions are of ischemic origin. The lesions, which are usually bilateral, occur only in the condyles, the coronoid processes, and the gonial angles. The main arterial blood supply to the mandible and to the major part of the ascending ramus originates from the inferior alveolar artery. The blood supply of the condyles, the coronoid processes, and the gonial angles originates in small muscular arteries.(ABSTRACT TRUNCATED AT 250 WORDS)

Osteochondroma of the mandibular condyle: Report of a case

Abstract A large osteochondroma of the mandibular condyle is described. The problem of diagnosing the exact location of the tumor is related, and the importance of tomograms in such cases is emphasized. The tumor caused a horizontal displacement of the bite and chin to the right without any neurologic symptoms. A condylectomy was performed, and the tumor was removed in toto. The functional and cosmetic results were very satisfactory.

Ultrastructural study of focal epithelial hyperplasia

Biopsy material from two young Israeli patients with focal epithelial hyperplasia revealed acanthosis, papillomatosis, and the presence of many epithelial cells with a clear cytoplasm in the basale and stratum spinosum. Many of the inclusions seen with the electron microscope had the morphologic appearance of lysosomes, but definite identification must await cytochemical evidence.

Median mandibular cyst—A rare lesion of debatable origin

Abstract The median mandibular cyst seems to be an extremely rare lesion, and a review of the literature revealed only eight well-documented cases. This article reports two additional cases in which the cysts were lined with stratified squamous epithelium. The origin of this lesion is unknown, but the two possibilities that have been suggested are an odontogenic origin and a nonodontogenic origin (fissural cyst). The findings in our two cases support the assumption that the median mandibular cyst has an odontogenic origin.

Osteochondroma of the coronoid syess of the mandible

A case of osteochondroma of the coronoid process is presented. The proper diagnosis of ill-defined symptoms in the temporomandibular joint requires conformity between clinical manifestations and radiologic findings. The importance of a thorough radiologic examination is stressed for the correct diagnosis of these rare, insidious, slow-growing tumors. A short review of the literature is presented, and the treatment and surgical approach to these tumors are discussed.

Severe postextraction bleeding as a presenting feature in a case of multiple myeloma

Abstract A case of severe postextraction bleeding in a patient with unsuspected multiple myeloma is reported. The bleeding was the presenting symptom of the condition and led to early diagnosis. The difficulties cncountered are related. Attention is drawn to multiple myeloma as a cause of spontaneous gingival bleeding as well as postoperative bleeding.