Biomedical subjects
Publications and source records attributed to M J Deasy.
A clinical study was conducted on the effects of an alexidine or placebo oral rinse on plaque and gingivitis. Forty-two male subjects rinsed for 54 days while continuing toothbrushing. This was followed by 4 days of mouthrinsing only. The alexidine mouthrinse significantly reduced the plaque index when used in conjunction with toothbrushing and also when brushing was discontinued. The gingivitis results were inconclusive.
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A case of preleukemic syndrome associated with severe periodontal disease has been presented for the first time. The clinical, radiographic and hematologic findings have been discussed, as well as medical and periodontal therapy.
Three cases have been presented illustrating the complications which may arise from the use of electrosurgery. These cases provide clinical evidence of the potential for severe periodontal destruction, a potential that must be weighed carefully by any practitioner who uses an electrosurgical instrument. It is suggested that new scientific studies be initiated to establish basic principles that will eliminate the hazards that now exist in the routine use of electrosurgery.
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This study consisted of 24 dental students, who 10 days prior to the start of the experimental period, were thoroughly scaled and given instructions in the use of a rubber tip stimulator, unwaxed dental floss, and a modified Bass brushing technique. On day 0, the subjects had reached a high level of interproximal gingival health as measured by intracrevicular exudate flow and löe's Gingival Index. Subjects were then randomly divided into 4 groups which were to brush; brush and floss; brush and rubber tip; and brush, floss and rubber tip. Evaluation was performed on days 0, 9, 15, and 33 using Löe's Gingival Index, Podchadley's Plaque Index, and gingival exudate flow. The results of this study indicate that interproximal gingival health can be maintained in motivated patients with initially healthy gingivae (for at least several weeks) with proper use of the modified Bass brushing technique alone.
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A total of one hundred twenty-one (121) adult male and female subjects completed a 6-month, double-blind clinical study comparing the effect on supragingival plaque formation and gingivitis of a dentifrice containing 0.3% Triclosan and 2.0% of a copolymer of methoxyethylene and maleic acid to a placebo dentifrice. Both the Triclosan/copolymer and placebo dentifrices contained 0.243% sodium fluoride in a silica base. Subjects were stratified into two balanced groups according to baseline plaque and gingivitis scores. They then received an oral prophylaxis and were assigned to use either the Triclosan/copolymer dentrifrice or the placebo dentifrice for the next 6 months. Subjects were evaluated for supragingival plaque formation and gingivitis after 3 and 6 months' use of the dentifrices. After 6 months, the Triclosan/copolymer dentifrice was shown to provide a 32.32% statistically significant reduction (99% level of confidence) in supragingival plaque formation, as compared to the placebo dentifrice. Also, after 6 months, the Triclosan/copolymer dentifrice was shown to provide a 25.64% statistically significant reduction (99% level of confidence) in gingivitis, as compared to the placebo dentifrice. It thus can be concluded from this clinical study that the twice daily use of the dentifrice containing 0.3% Triclosan and 2.0% of a copolymer in a 0.243% sodium fluoride/silica base provides statistically significant reductions in both supragingival plaque formation and gingivitis.
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