Donald A. Kerr

Squamous odontogenic tumor. Report of six cases of a previously undescribed lesion.

Six cases of a previously unnamed oral lesion are described and the name squamous odontogenic tumor is applied. The lesion causes radiolucent areas of bone destruction adjacent to the roots of teeth. In one case there were multiple separate lesions. Light microscopy revealed numerous islands of benign squamous epithelium with focal areas of keratinization and calcification. Electron microscope examination in one case showed normal squamous epithelial cells with abundant glycogen granules, tonofilaments and myelin bodies. Complete surgical excision seems the best therapy, as only one lesion recurred following treatment.

The odontogenic adenomatoid tumor. A comprehensive study of twenty new cases.

Twenty new cases of odontogenic adenomatoid tumor are added to the literature, bringing the total number of reported cases to 152. The clinical, radiographic, and microscopic findings in these cases support the previously reported data for this lesion. The odontogenic adenomatoid tumor is a benign lesion which arises from residual odontogenic epithelium. It should be treated conservatively, as there is no indication that this lesion will recur. The histogenesis of this lesion, as well as the origin of the esinophilic droplet material, is discussed.

Dental management of patients irradiated for oral cancer.

Management of patients irradiated for oral cancer should include consideration of their oral health prior to, and after, radiation therapy. Data from 130 patients, followed for a period of 1 to 10 years, are presented and evaluated. The philosophy of retention and maintenance of as many teeth as possible is supported by this data. Extraction of teeth with severe periodontal disease after irradiation also proves to be a relatively safe operation. Osteoradionecrosis tends to be limited in extent and is generally well tolerated by the patient when treated conservatively. A treatment regimen is presented that significantly reduces the morbidity from therapeutic irradiation of the jaws. A comprehensive dental evaluation and follow‐up plan coupled with patient cooperation are instrumental to the success of this program.

Multiple idiopathic root resorption

Abstract Resorption of individual teeth is a common phenomenon, but there are few reported cases of multiple idiopathic root resorption. This article reports progressive root resorption in two female patients. The resorptive process begins in the area of the cementoenamel junction of vital teeth and progressively involves all or nearly all of the teeth. Historical information, clinical laboratory examinations, and histologic study plus a search of the literature have failed to reveal or suggest the etiology of this pathologic condition.

Keratinization in odontogenic tumors

The potential of odontogenic epithelium to keratinize in the form of ghost cells is demonstrated in the histologic variants of a number of odontongic tumors. Although the cells lack keratohyaline granules, they do contain abundant tonofilaments and probably represent an altered form of keratin. The presence of this material in odontogenic tumors does not appear to alter clinical occurence or clinical behavior.

Idiopathic gingivostomatitis: Cheilitis, glossitis, gingivitis syndrome; atypical gingivostomatitis, plasma-cell gingivitis, plasmacytosis of gingiva

Abstract A new syndrome consisting of cheilitis, glossitis, and gingivitis has appeared within the past three years. A study of eight cases implicates chewing gum as the etiologic factor and indicates that the condition may be a hypersensitivity reaction to one of the constituents of chewing gum.

Fibrous lesions of the skin and mucous membranes which contain stellate and multinucleated cells

Various fibrous lesions of the skin and mucous membranes share the common histologic feature of stellate and multinucleated fibroblasts. These cells are conspicuous under the light microscope because they contain a well-developed, rough endoplasmic reticulum which, because of its high RNA content, stains basophilic. These characteristic cells are a nearly constant feature of the retrocuspid papilla. They are apparent in about half of the fibrous papules of the nose and abundant in about 1 per cent of irritation fibromas. These lesions most likely represent a nonspecific proliferation of the lamina propria or papillary dermis to various stimuli.

A study of the pigmented tumors of jaws of infants (melanotic ameloblastoma, retinal anlage tumor, progonoma)

Abstract A review of the literature yielded thirty-three cases of pigment-producing tumors of the jaws of infants, and three new cases have been added in this article. The clinical data available on the reported cases indicate that the lesion is more common in females, with a ratio of 3:2. It occurs in almost all cases before the age of 1 year, and in the majority of cases the lesions developed before the age of 6 months. Five of the thirty-six lesions were mandibular. There is little tendency toward recurrence following total surgical excision. No evidence of extensive local spread or metastasis has been reported. The various suggested histogeneses have been indicated, and it has been suggested that the tumors are of odontogenic origin and should be designated as melanotic ameloblastomas.

Pigmented ameloblastoma of the mandible: Report of a case

Abstract We have reported a case of pigmented ameloblastoma of the mandible associated with a developing deciduous tooth which lends support to the odontogenic origin of the tumor.

Sodium Hexametaphosphate as an Aid in the Treatment of Periodontal Disease

Albright, Sulkowitch, and Chute (1) have described a non-surgical method for the removal of renal stones in which sodium hexametaphosphate was used as a solvent. This method gave the best results in cases in which the stones were of the phosphate type. It was this work which suggested to one of us (H. F.), that perhaps sodium hexametaphosphate would be effective in reducing the deposition of calculus on the teeth. Sodium hexametaphosphate may be represented by the formula Na2(Na4 (P03)6). Albright, Sulkowitch and Ghute suggested the following reaction as being reponsible for the dissolution of phosphate stones: