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nagyúr
http://ultrahangosfogkefe.eu"
Ugy nez ki, kicsit megis jobbak az elektromosak, de nincs kulonbseg a tipusok kozott:
There is moderate quality evidence that powered toothbrushes provide a statistically significant benefit compared with manual toothbrushes with regard to the reduction of plaque in both the short term (standardised mean difference (SMD) -0.50 (95% confidence interval (CI) -0.70 to -0.31); 40 trials, n = 2871) and long term (SMD -0.47 (95% CI -0.82 to -0.11; 14 trials, n = 978). These results correspond to an 11% reduction in plaque for the Quigley Hein index (Turesky) in the short term and 21% reduction long term. Both meta-analyses showed high levels of heterogeneity (I2 = 83% and 86% respectively) that was not explained by the different powered toothbrush type subgroups.
Viszont azert osszessegeben eleg keves a kulonbseg a manualis es az elektromos kozott.
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