https://www.selleckchem.com/pr....oducts/o6-benzylguan
To assess the effects for controlling extrinsic tooth stain of a whitening toothpaste containing 10% high cleaning silica, 0.5% sodium phytate and 0.5% sodium pyrophosphate, in comparison with a negative control toothpaste. A total of 86 adults who met with the inclusion and exclusion criteria were invited to take part in the study. They were distributed into test and control groups randomly. At baseline, 4weeks and 8weeks, the same examiner provided the clinical examinations, including evaluations of oral soft and hard tissues
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