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OBJECTIVES: The purpose of this study was to determine the efficacy of a college-based smokeless tobacco cessation intervention targeting college athletes. METHODS: Sixteen colleges were matched for prevalence of smokeless tobacco use in their combined baseball and football teams and randomly assigned within college pairs to the intervention or the control group. One-year prevalence of cessation among smokeless tobacco users was determined by self-report of abstinence for the previous 30 days. Differences between groups were analyzed in a weighted version of the Fisher 1-sided permutation test for paired samples after adjustment for significant predictors of quitting other than the intervention (i.e., smokeless tobacco uses per week and most frequently used brand). RESULTS: Cessation prevalences were 35% in the intervention colleges and 16% in the control colleges when subjects with unknown quit status were defined as nonquitters. After adjustment for other significant predictors of quitting, the difference of 19% increased to 21%. The intervention effect increased with level of smokeless tobacco use. CONCLUSIONS: This intervention was effective in promoting smokeless tobacco cessation, especially among those who were more frequent users.

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Sixteen colleges were matched on the baseline prevalence of spit tobacco (ST) use, and college pairs were randomized, one to the intervention and the other to the control group. Baseball and football athletes at each intervention college received: an oral examination by a dental professional who pointed out ST-related problems in the athlete's mouth and advised him to quit ST use; counseling by a dental hygienist on strategies to cope with cravings and triggers for use; and two follow-up telephone calls. At the three-month follow-up, quit rates were 24% and 16% for the intervention (n = 171) and control (n = 189) groups, respectively (p < 0.05). As the reported amount of ST used weekly increased, the percent of individuals who quit at 3 mos decreased (p < 0.05). Dental professionals appear to be effective in promoting spit tobacco cessation at 3 mos post-intervention in male college athletes, especially among those using lesser amounts of ST.

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To determine the prevalence of infant caries in low-socioeconomic-status children and to analyze the costs of their treatment, we retrospectively evaluated 357 children, ages eight months to seven years, who were treated during 1992 at a university-associated medical center in Northern California. Infant caries was diagnosed by several different standards, and prevalence varied according to the diagnostic criteria employed: 27 percent by the presence of any labiolingual lesion on the maxillary incisors; 32 percent by the presence of at least two carious maxillary incisors; 27 percent by the presence of at least three carious maxillary incisors; and 36 percent by a dmft > or = 5. Prevalence was higher among boys than girls (37 percent versus 27 percent), and highest in the group ages 3-4 years (43 percent). The cost of dental treatment increased with deft and ranged from $408 for deft 2-5 to $1725 for deft 16-20. Many patients failed to comply with recommended treatment for reasons of cost. Our results showed that (1) the prevalence of infant caries varies depending upon the clinical criteria used for diagnosis; (2) the cost of rehabilitating primary dentition increases in proportion to the number of teeth involved; and (3) low-income patients avoid treatment of infant caries for a variety of reasons related to the cost involved.

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We examine the relationship between beliefs regarding spit tobacco (ST) use and addiction among 473 male college athletes who currently use ST. Beliefs were assessed using methods prescribed by the Theory of Reasoned Action. Independent associations between beliefs and addiction, defined by self-reported amount of ST used per week, were found via multivariate polychotomous regression modeling. We found that with increasing addiction level, athletes were significantly more likely to believe that "ST helps me relax," "ST keeps me alert," "ST tastes good," and "ST is addicting." All athletes believed that clinicians, parents, and girlfriends do not approve of their ST use, but that male peers, coaches, and professional athletes are fairly indifferent about it. To increase quit rates, highly addicted ST users may require an intensive cessation program including nicotine replacement to overcome symptoms of withdrawal, oral substitutes for the enjoyable taste of ST, and the support of male peers and athletes who influence their social norms.

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We surveyed varsity athletes (N = 1,328) in 16 California colleges about their patterns of spit (smokeless) tobacco (ST) use, related habits, reasons for use, and preferred methods for quitting. Prevalence of use was analyzed by sport and demographic characteristics, and patterns of use in players using snuff exclusively, using chewing tobacco exclusively, and those using both were compared. Odds ratios and 95% confidence intervals were calculated, adjusting for ethnic group. Prevalence was highest in Whites (44%) and Native Americans (48%) and lowest in African Americans (11%), and higher in varsity baseball (52%) than varsity football players (26%), in players attending rural colleges, and among those who ever smoked cigarettes or used alcohol. Forty-one percent of ST users initiated regular use during their high school years. Athletes who used snuff exclusively used it more intensively and for more years than those who used chewing tobacco exclusively. Snuff users indicated a greater perceived need for ST, but also were more ready to quit. These data suggest ST programs with prevention and cessation components are appropriate for high school as well as college athletes. Such interventions should focus on baseball players, distinguish snuff from chewing tobacco users in planning quit strategies, integrate intervention programs for cigarette smoking and alcohol consumption, provide training in refusal skills, and attempt to change social norms in support of ST use by integrating popular peers and significant others (e.g., wives/girlfriends) to endorse nonuse of ST.

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There are few reports in the scientific literature that describe tested methods for helping people quit using spit (smokeless) tobacco. This paper reports data from a pilot study to determine the effectiveness of two dental-oriented interventions to promote cessation of ST use among major league baseball players. These preliminary findings suggest that interventions involving an oral examination and advice to quit, combined with behavioral counseling, may effectively decrease ST use among professional baseball players.

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We investigated the prevalence of HIV-associated periodontal disease in an AIDS clinic in San Francisco. Patient recruitment occurred over 6 months with 90% patient participation. In 136 patients, three forms of periodontal disease were recorded: HIV-associated gingivitis (HIV-G), HIV-associated periodontitis (HIV-P), and conventional non-HIV-associated periodontal disease. Diagnosis was based on defined clinical criteria established before the study began. For the HIV-associated diseases, two sets of diagnostic criteria were used. One consisted of clinical signs that included bleeding on probing, pocket depth, and attachment loss; and the other consisted of the same signs but did not require probing (the measurement of the depth of the gingival sulcus). Using the first set of these criteria, HIV-G was diagnosed in 42 patients [31%; 95% confidence interval (CI) 23 to 39%] and HIV-P in 5 (4%; 95% CI 1 to 7%). Using the second set, 68 patients were diagnosed with HIV-G (50%; 95% CI 42 to 58%) and 8 with HIV-P (6%; 95% CI 2 to 10%). All other categories of periodontal disease that were non-HIV-associated were diagnosed in 60 (44%) of patients. These results indicate that while the prevalence of HIV-P is low, the prevalence of HIV-G and conventional periodontal disease among HIV-infected individuals is high and should be considered in the dental care of these patients.

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The Ca antigen has been reported to be present on the surface of malignant but not, with few exceptions, non-malignant cells. We investigated the potential usefulness of the monoclonal Ca 1 antibody in differentiating oral squamous cell carcinoma from non-malignant or premalignant oral neoplasms. Paraffin-embedded sections from 33 biopsy specimens of 12 hyperplastic and 21 neoplastic oral lesions were examined by immunohistochemical staining. Seven of the 33 specimens showed positive staining for Ca antigen. Fifteen of 21 specimens of oral squamous cell carcinoma were negative for Ca antigen, and one case of focal keratosis was positive. The results indicate that the use of the Ca 1 antibody to distinguish oral squamous cell carcinoma from non-malignant or premalignant oral lesions is highly unreliable.

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