Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0043352 (xerostomia)
 4,250 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Though previous experiments with fat-soluble carcinogens have demonstrated a protective effect of the saliva against chemically induced oral cancer it is not known if this also holds true for water-soluble carcinogenic agents. In vitro experiments indicate that the water-soluble 4NQO (4-nitrochinoline N-oxide) easily penetrates a layer of saliva similar with that normally present on the oral mucous membranes. It is possible that this quality, on intraoral applications of 4NQO, could eliminate the protective barrier of saliva. The protective effect of the saliva was examined in the present investigation. Xerostomia was induced in 15 rats and 4NQO was applied to the palate 3 times a week. After 4.7 months, on an average, palatal cancer appeared in all rats. In comparable investigations the result was 7 months with rats treated in an identical manner except for their salivary secretion remaining intact. This time difference represents approximately 33% of the time necessary for the development of oral cancer in normal rats by means of 4NQO. It was concluded, that a protective effect of the saliva exists whether the oral mucous membranes are attacked by water--or fat-soluble carcinogens.
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PMID:Experimental oral cancer in rats with xerostomia. 82 79

Injury to surrounding tissues during radiotherapy for oral cancer can have devastating physical and psychologic consequences for the patient. Oral complications include xerostomia, dental decay, mucositis, taste loss, osteoradionecrosis, infection, and trismus. In many instances, these problems can be eradicated or controlled with appropriate treatment.
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PMID:Oral complications of cancer radiotherapy. 83 98

No part of the body reflects the complications of cancer chemotherapy as visibly and as vividly as the mouth. The infectious, hemorrhagic, cytotoxic, nutritional, and neurologic signs of drug toxicity are reflected in the mouth by changes in the color, character, comfort, and continuity of the mucosa. The stomatologic complications of radiotherapy for oral cancer are physical and physiological in nature, transient or lasting in duration, and reversible or irreversible in type. Some linger as permanent mementos long after the cancer has been destroyed. They stem from radiation injury to the salivary glands, oral mucosa, oral musculature, alveolar bone, and developing teeth. They are expressed clinically by xerostomia, trismus, radiation dermatitis, nutritional stomatitis, and dentofacial malformation. In both cancer chemotherapy and cancer radiotherapy, the oral complications vary in pattern, duration, intensity, and number, with not every patient developing every complication.
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PMID:Oral complications of cancer therapies. Description and incidence of oral complications. 218 48

The effects of carbon tetrachloride-induced liver cirrhosis and xerostomia on oral carcinogenesis were studied in rats given the lipid-soluble carcinogen 7,12-dimethylbenz-[a]anthracene (DMBA). The first carcinoma was detected after only 1 month of DMBA applications. After a further 8 months 85% of the animals had developed one or more squamous cell carcinomas. The latency period for DMBA-induced oral cancer in cirrhotic rats with xerostomia was markedly reduced in comparison with previous findings from xerostomic rats without liver cirrhosis. The results support earlier epidemiologic studies indicating a relationship between liver cirrhosis and oral cancer.
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PMID:Induction of oral cancer by 7,12-dimethylbenz[a]anthracene in rats with liver cirrhosis. 251 33

In recent years, methods have been developed to evaluate effectiveness, cost-effectiveness, and quality of oral health services and delivery mechanisms. These evaluation techniques are important to the application of oral health services, because most oral health services have not been adequately evaluated. For many services, evaluation may not be necessary. However, there is wide variation in clinical practices and accumulating evidence that many health practices, although based on reasonable pathophysiologic grounds, are not resulting in their expected health benefits. This has led to the suggestion that all clinical precepts may be questioned. A number of measures are used by researchers to evaluate the quality and effectiveness of oral health services. These include: Effectiveness and appropriateness: Methods available to assess health practices range from clinical observation to strictly controlled randomized clinical trials. Cost-effectiveness: Benefit-cost and cost effectiveness analyses. Quality: No tool exists that will single-handedly measure quality. Current methodologies should be based on the following three-dimensional conceptual framework: Structure (evaluation of facilities, equipment, personnel, and organization to deliver care), process (observance of the patient-provider interaction), and outcome (measures of health status and patient outcomes). Little to no information on the quality and effectiveness of oral health delivery systems is available in the United States; the most common system in place is solo, private, fee-for-service practice. Specific questions, conditions, or practices that need evaluation include: Alternative frequencies of oral prophylaxis; Use of fluoride and other remineralization techniques for early decay; Alternative methods to replace missing teeth, including the appropriateness of dental implants; Methods to prevent and treat symptoms of dry mouth; Treatment of the medically compromised patient; Prevention of oral complications of cancer treatment; Appropriateness of new and existing diagnostic technologies; Diagnosis and treatment of oral cancer; and Alternative oral health delivery systems, financing, and expanded responsibilities for allied health professionals.
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PMID:Quality and effectiveness issues related to oral health. 747 25

The purpose of this article is to review preventive strategies with regards to caries, periodontal disease, xerostomia, and oral cancer which may be helpful in treating the older patient. Dramatic demographic changes projected for the older population will have a direct impact on the type and quantity of dental services delivered in the future. It will be advantageous for tomorrow's oral health professional to recognize these changes and to adapt preventive and treatment regimens accordingly.
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PMID:Preventive strategies for the older dental patient. 958 3

PTSD is a chronic mental illness that may arise after an individual experiences or witnesses a life-threatening event. Symptoms consist of persistent reexperiencing of the event, avoidance of reminders of the event, a numbing of positive emotions, and social withdrawal. A depressed mood and excessive use of alcohol and tobacco may accompany the disorder. PTSD afflicts approximately 5% of men and 11% of women. Dental disease may be extensive because of neglect of oral hygiene compounded by cigarette smoking. Dental treatment includes preventive education, oral cancer screening, and prescribing saliva substitutes or stimulants and anticaries agents to combat medication-induced xerostomia. Precautions must be taken when prescribing or administering certain analgesics, antibiotics, or sedative agents that may adversely interact with the psychiatric medications or when performing surgery because of the long-term effects of alcohol abuse.
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PMID:Posttraumatic stress disorder: psychopathology, medical management, and dental implications. 1471 50

A prerequisite dental evaluation is usually recommended for potential organ transplant candidates. This is based on the premise that untreated dental disease may pose a risk for infection and sepsis, although there is no evidence that this has occurred in organ transplant candidates or recipients. The purpose of this study was to assess the prevalence of dental disease and oral health behaviors in a sample of liver transplant candidates (LTCs). Oral examinations were conducted on 300 LTCs for the presence of gingivitis, dental plaque, dental caries, periodontal disease, edentulism, and xerostomia. The prevalence of these conditions was compared with oral health data from national health surveys and examined for possible associations with most recent dental visit, smoking, and type of liver disease. Significant risk factors for plaque-related gingivitis included intervals of more than 1 yr since the last dental visit (P = 0.004), smoking (P = 0.03), and diuretic therapy (P = 0.005). Dental caries and periodontal disease were also significantly associated with intervals of more than 1 yr since the last dental visit (P = 0.004). LTCs with viral hepatitis or alcoholic cirrhosis had the highest smoking rate (78.8%). Higher rates of edentulism occurred among older LTCs who were less likely to have had a recent dental evaluation (mean 88 months). In conclusion, intervals of more than 1 yr since the last dental visit, smoking, and diuretic therapy appear to be the most significant determinants of dental disease and the need for a pretransplantation dental screening evaluation in LTCs. Edentulous patients should have periodic examinations for oral cancer.
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PMID:Dental health status of liver transplant candidates. 1725 60

The number of old people shows increasing tendency worldwide. The prevalence of oral diseases has been increased with age. In the older adult population tooth loss, dental caries and periodontal diseases frequently can be observed as characteristic features of their oral health condition. Additionally people in elderly are frequently suffered from other oral diseases such as xerostomia, orofacial pain, oral cancer. Results of the latest epidemiological studies show that the level of oral health of Hungarian old population is very low. In many cases oral healthcare can't show an optimal situation due to low economic and social circumstances. The present situation need more changes in oral care. It is necessary to recognize the risk factors, to treat the oral diseases properly and to organize an effective oral/dental care system for the old population.
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PMID:[Various aspects of dental prevention in the elderly]. 1836 Dec 1

Older persons are at risk of chronic diseases of the mouth, including dental infections (e.g., caries, periodontitis), tooth loss, benign mucosal lesions, and oral cancer. Other common oral conditions in this population are xerostomia (dry mouth) and oral candidiasis, which may lead to acute pseudomembranous candidiasis (thrush), erythematous lesions (denture stomatitis), or angular cheilitis. Xerostomia caused by underlying disease or medication use may be treated with over-the-counter saliva substitutes. Primary care physicians can help older patients maintain good oral health by assessing risk, recognizing normal versus abnormal changes of aging, performing a focused oral examination, and referring patients to a dentist, if needed. Patients with chronic, disabling medical conditions (e.g., arthritis, neurologic impairment) may benefit from oral health aids, such as electric toothbrushes, manual toothbrushes with wide-handle grips, and floss-holding devices.
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PMID:Common oral conditions in older persons. 1884 30


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