Over-the-counter and prescription mouthwashes-an update for the 1990s.
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The tea tree oil (melaleuca alternifolia) has antiseptic, fungicide and bactericide effects. The efficiency against oral bacteria was also evident. Xylitol is known for counterattacking the cariogenic effect caused by the streptococcus mutans. Less plaque was developed during the time of the study.
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AmF and SnF2 containing toothpastes (equally 750 ppm F-) and mouthrinses (equally 125 ppm F-) from the GABA International Agency were tested. After a five month treatment period (daily two times tooth cleaning), in the saliva of the examined persons the germ counts of the S. mutans and Lactobacillus showed a decreasing tendency, though the change was not statistically significant. The control group used NaF containing cleaners (toothpaste; 1500 ppm F-, mouthrinse; 250 ppm F-) for also a five month treatment period. Within this group the germ counts of the microorganisms of the examined saliva did not change markedly.
UNLABELLED: The aim of the study was to assess the effect of amine fluoride (AmF)--stannous fluoride (SnF2) containing toothpaste and mouthrinsing on dental plaque accumulation and gingivitis. The examinations were performed on two groups of 20 (using AmF/SnF2)-, resp. 24 (using NaF) participants. The mean age was 45.6-, resp. 48.8 years. The duration of the study was five months. Toothbrushing was performed with standardized (multi-effect) toothbrushes, and after it mouthrinsing twice a day. Dental plaque was scored with the Plaque Index of Silness and Löe (1964) and gingivitis was assessed by the modified Sulcus Bleeding Index (Mühlemann and Son 1971) Plaque Index mean values showed a significant decreased in both groups (p less than 0.01). The reduction in the AmF/SnF2 group was more pronounced (63.7%) than in the NaF group (39.3%). The Sulcus-Bleeding Index mean values decreased also significantly in both groups (p less than 0.01). The decrease in the AmF/SnF2 group was 56.5% and in the NaF group 39.0%. CONCLUSION: in the course of a five-month's period AmF/SnF2 containing toothpaste and mouthrinsing had better clinical effect on plaque accumulation and gingivitis than NaF containing toothpaste and mouthrinsing.
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A survey was done at the Center of Child Readaptation at Flavigny (Meurthe-et-Moselle) to determine the effect of a mouth rinse containing 0.03% sanguinaria extract, on the plaque accumulation and gingivitis of 30 children 8 to 17 years old. 13 children had a motricity handicap of their superior members and 17 did not. All subjects rinsed their mouths twice with 15 ml of solution each time. The mouth rinses were performed in the morning and in the evening during three weeks. The children were photographed and examined using the P1I and GI indices on days 0, 7, 14, 21 and 35. No statistical significant difference was observed at any moment between children with or without handicapped upper limbs. After 3 weeks of treatment the Plaque Index had decreased 47.3% and Gingival Index 55.6%.
The antimicrobial efficiency of zinc chloride solution in concentration from 0.1% to 2.0% and 0.2% chlorhexidine solution has been examined on the strains of reference in a comparative study. Three test methods were applied: the agar diffusion test, the dilution test and the suspension test. As was to be expected the antibacterial effect of the zinc chloride solution was dependent on concentration. Between 0.1% and 2.0% the zinc chloride solution showed a bacteriostatic effect on the strains of reference only; the application of higher concentrated solutions is not indicated intraorally. 0.2% chlorhexidine solution showed a bactericidal effect on the test germs.
The quantitative behaviour of Streptococcus mutans, Streptococcus sanguis and Streptococcus salivarius has been examined in initial findings and after application of 0.4% zinc chloride solution. After a 7 day rinsing the number of colony developing units of the species Streptococcus mutans and Streptococcus sanguis in the plaque decreased to about 30% of the determined initial values. The proportions of the species Streptococcus mutans and Streptococcus sanguis in the total streptococcus flora of the dental plaque were not changed by zinc chloride solution. The percentage of the Streptococcus salivarius increased significantly from 1% to 4% of the total number of streptococci.
During a 14-day test period a 0.2% and a 0.4% zinc chloride solution have been examined concerning their antibacterial efficiency on the total streptococcus flora of dental plaque under conditions conforming to standard by means of the Mylar foil technique. The results of the microbiological examination show a significant decrease of colony developing units of the plaque streptococci by a 7-day mouth rinsing with zinc chloride solution. The lesser antimicrobial effect of the zinc chloride solution compared with a 0.2% chlorhexidine solution is not proved statistically in the test period. A 0.2% or 0.4% zinc chloride solution could complete the mechanical dental and oral hygiene in an effective way.