Beyond bisphosphonates: thrombophilia, hypofibrinolysis, and jaw osteonecrosis.
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Biomedical subjects
Publications and source records attributed to Jerry E Bouquot.
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OBJECTIVE: To assess risk factors associated with oral leukoplakia in a US population with high use of smoked tobacco and smokeless tobacco. METHODS: The RJ Gorlin Leukoplakia Tissue Registry was used to identify individuals with oral leukoplakia in West Virginia, USA. This case-control study consisted of 90 cases with oral leukoplakia and 78 controls with periapical cysts. Univariate-univariable (one dependent variable and one independent variable) and univariate-multivariable (one dependent variable and multiple independent variables) logistic regression modeling quantified the association between oral leukoplakia and potential explanatory variables. RESULTS: Unadjusted measures of association indicate that those with oral leukoplakia were more likely to be older [odds ratio of crude: OR(Crude) = 2.72; 95% confidence interval (CI): 1.45-5.11], more likely to currently use smokeless tobacco (OR(Crude) = 3.16; 95% CI: 1.10-9.07), and more likely to currently use snuff (OR(Crude) = 8.32; 95% CI: 1.83-37.80). Individuals currently using smokeless tobacco or currently using snuff were more likely to have oral leukoplakia [adjusted odds ratio, OR(Adj) = 9.21 and 30.08; 95% CI: 1.49-57.00 and 2.67-338.48, respectively], after simultaneously adjusting for age, gender, currently using smoked tobacco, currently using alcohol daily, and dental prostheses use. CONCLUSIONS: Generalizability is an issue when studying risk factors associated with oral leukoplakia because of geographical variations in the composition of smokeless tobacco (i.e. betel, lime, ash, and N-nitrosamines) and cultural variations in the use of tobacco (i.e. reverse smoking). Snuff was the main smokeless tobacco product currently used in West Virginia, and was strongly associated with oral leukoplakia, after adjusting for potential explanatory variables.
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Three case reports are presented that demonstrate the use of full-thickness flap/subepithelial connective tissue grafting for root coverage on the lingual surfaces of the mandibular anterior teeth. This is accomplished using an envelope full-thickness flap technique with intramarrow penetrations at the recipient site. Miller Class I, II, and III gingival recession defects and gingival perforation defects were treated. Complete root coverage was achieved in two Miller Class I gingival recession defects, in one Miller Class II gingival recession defect, and in two gingival perforation defects in areas that exhibited no radiographic evidence of bone loss. Partial root coverage was achieved in two Miller Class III gingival recession defects in an area that exhibited radiographic evidence of bone loss. Although the majority of the exposed root surface was covered in these two Miller Class III defects, about 1 mm of root surface remained exposed, which seemed to closely correspond to the amount of bone loss that was noted radiographically. A grafting technique has been presented that can be used to restore the functional properties of the lingual gingiva of the mandibular anterior teeth by repairing gingival defects and re-establishing the continuity and integrity of the zone of keratinized gingiva. Our clinical impression is that this has made it easier for the three patients presented in this report to maintain the lingual surfaces of the mandibular anterior teeth with routine oral hygiene measures.
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Focal osteoporotic marrow defect (FOMD) may be the earliest detectable form of the ischemic marrow disorders. The exact cause is unknown, but three theories have been proposed in the literature. A fourth is presented in this paper. In this study, 100 biopsies were examined histologically and were diagnosed as FOMD, based upon consistent histological characteristics. Until recently, the only diagnostic criteria were radiographic evaluation and incisional biopsy. In February 2002, a through-transmission alveolar ultrasonic test (Cavitat 4000, Cavitat Medical Technologies, Inc., Aurora, CO) was approved by the US Food and Drug Administration and by Health Canada for detection of low bone density and bone desiccation, both features of FOMD and chronic ischemic bone disease. Within this article, the diagnostic criteria and pathological findings of FOMD will be presented. The three current theories concerning its etiology will be briefly presented and a fourth theory will be proposed.
The scientific and diagnostic status of neuralgia-inducing cavitational osteonecrosis, NICO, has not been definitively established. A case is presented in favor of this diagnosis based on published literature. It is argued that the case against NICO has been made largely based on personal experiences, by innuendo, and through personal attacks rather than in scientific debate.