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- This topic has 2 replies, 2 voices, and was last updated 05/11/2012 at 3:06 pm by Drsumitra.
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05/06/2012 at 5:12 pm #10592AnonymousOnlineTopics: 0Replies: 1150Has thanked: 0 timesBeen thanked: 1 time
Healthy Habits Can Prevent Disease
Five new studies provide evidence to support simple steps we can take to prevent illness and improve our overall health. In the June issue of The American Journal of Medicine, researchers report on fish consumption to reduce the risk of colon cancer; the effectiveness ofhypnotherapy and acupuncture for smoking cessation; regular teeth cleaning to improve cardiovascular health; the effectiveness of primary care physicians in weight loss programs; and the use of low-dose aspirin to reduce cancer risk.
“Despite the fact that colon and rectal cancer share many features and are often referred to as colorectal cancer,’ they tend to demonstrate many different characteristics,” notes lead author Daiming Fan, of the Fourth Military Medical University. “One possible reason for the difference may be because colon cancers are generally more molecularly diverse, whereas rectal cancers mostly arise via a single neoplastic pathway.”Colorectal cancer is the third leading cause of cancer death in the Western world. Research linking fish consumption and the risk of colorectal cancer has been inconclusive, although people who live in countries with high levels of fish consumption are known to develop the disease less frequently. Now, scientists from Xi’an, China, have reviewed the literature and find that eating fresh fish regularly reduces the risk of colorectal cancer by 12%. They evaluated 41 studies on fish consumption and colorectal cancer risk published between 1990 and 2011 and tracked cancer diagnoses. The protective effect of fish consumption is more prominent in rectal cancer than in colon cancer. The risk reduction for rectal cancer was as much as 21%, whereas the reduction for colon cancer was 4%.
Mark J. Eisenberg, MD, MPH, of McGill University, in Montreal, Quebec, and colleagues report that the use of unconventional smoking cessation aids, including acupuncture and hypnotherapy, results in substantial increases of smoking cessation. A meta-analysis of 14 trials found that smokers who underwent hypnotherapy were 4.55 times more likely, and those who underwent acupuncture were 3.53 times more likely, to abstain from smoking than those who did not. Aversive smoking may also help smokers quit; however, there were no recent trials investigating this intervention.
Regular tooth scaling is associated with a decreased risk for future cardiovascular events. A study by H-B. Leu, MD, of Taipei Veterans General Hospital, Taiwan, and colleagues examined 10,887 subjects who had undergone tooth scaling, and 10,989 subjects who had not received tooth scaling. During an average follow-up period of seven years, the group that had undergone tooth scaling had a lower incidence of myocardial infarction, stroke, and total cardiovascular events. Increasing frequency of tooth scaling correlates with a higher risk reduction.
A study by William C. Haas, MD, of East Carolina University, Greenville, NC, and colleagues finds thatphysicians in primary care practices can be as effective as weight loss clinics in helping the moderately obese lose weight. Patients received behavioral modification sessions and a diet plan partially or fully supplemented by meal replacements at either a primary care clinic or a weight loss center. Primary care clinics were as effective as weight loss centers at reducing weight, and better at reducing body fat. Regardless of location, participants completing 12 weeks of treatment lost an average of 11.1% of their body weight. Participants who selected full meal replacement had better results.
Low-dose aspirin, a common strategy for preventing cardiovascular disease, can also reduce nonvascular deaths, including cancer deaths. A meta-analysis of 23 randomized studies by Edward J. Mills, PhD, MSc, of the University of Ottawa, Ontario, Canada, and colleagues offers conclusive evidence that low-dose aspirin offers cancer preventive effects, and showed significant treatment effects after approximately four years of follow up.
27/08/2012 at 4:48 pm #15859DrsumitraOfflineRegistered On: 06/10/2011Topics: 238Replies: 542Has thanked: 0 timesBeen thanked: 0 timesA study that investigated the impact on treatment outcome after 12 months of different subgingival irrigation solutions during scaling and root planing (SRP) was recently published in the Journal of Periodontology by Dr. Carlos Krück et al. The randomized trial involved 51 adult volunteers with generalized chronic periodontitis who were treated by full-mouth SRP using the following subgingival irrigants during SRP: 0.9% sodium chloride, 0.12% chlorhexidine digluconate, or 7.5% povidone-iodine. Probing depth (PD), clinical attachment level (CAL), and bleeding on probing (BOP) were recorded prior to SRP, after 3 months, and after 12 months. Subgingival plaque samples were analyzed for Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, Tannerella forsythia, and Treponema denticola. The study found that PD, CAL, and BOP were significantly improved in all groups after 12 months (P < .001 to P = .044). No significant differences were seen between the groups for all sites and sites with 4 to 6 mm PD at the baseline. The povidone-iodine group had the highest clinical improvements. The counts of A actinomycetemcomitans and P gingivalis were significantly reduced after 12 months (P = .045, P = .002) using povidone-iodine. Significant differences between the groups were seen after 3 months for A actinomycetemcomitans and P gingivalis, and after 12 months for T forsythia. The study concludes that no differences were seen between the groups in the clinical results after 12 months, although regarding the microbiological results, a slight benefit seems to derive from the use of povidone-iodine.
05/11/2012 at 3:06 pm #16126DrsumitraOfflineRegistered On: 06/10/2011Topics: 238Replies: 542Has thanked: 0 timesBeen thanked: 0 timesDentists and dental organisations usually recommend professional tooth scaling every three months in addition to regular dental check-ups to maintain good oral health. However, after researching a number of current studies on the procedure, scientists have found that tooth scaling does not offer any proven medical benefits to patients.
The investigators of IGeL-Monitor, a website launched earlier this year to monitor individual health services (i.e. those paid for privately) within the German health system, evaluated current scientific studies of adults without periodontitis with regard to the medical benefits of tooth scaling.They said that they found no significant evidence that professional tooth scaling affects oral health positively, as study participants who had undergone tooth scaling in addition to their daily dental care and regular check-ups did not have an improved oral health status. Moreover, possible damage caused by the procedure was only inadequately covered by the studies, they said.
With regard to the claims raised by IGeL-Monitor, the German Dental Association announced last week that a number of important studies have confirmed the benefits of tooth scaling. For instance, a study with almost 22,000 participants in Taiwan published in the June issue of the American Journal of Medicine found that tooth scaling was associated with a significantly reduced risk of cardiovascular events.
According to the dental association, professional tooth scaling is essential for maintaining long-term dental health. It is an indispensable part of preventive dentistry, the association said.
In Germany, the costs for tooth scaling are only partly covered by statutory health insurance. Usually, patients are entitled to one annual scaling at the expense of the insurance company. All additional procedures have to be paid for by the patient.
The Medical Service of the Central Association of Health Insurance Funds, the advisory body on medical and health care issues of the National Association of Statutory Health Insurance Funds, commissioned the investigation of the claims regarding the medical benefits of professional tooth scaling.
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