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The key reason that abrasion is not possible is the length of the stroke. A long, lateral stroke (what most people inadvertently do with a manual brush) can most certainly cause abrasion, especially when too much pressure is being applied. With HydraBrush, the lateral stoke is so short (5mm), that there is no 'sweeping action'. This minimal stroke, coupled with the fact that the patient cannot apply too much pressure, means that abrasion is virtually impossible with HydraBrush. If used as directed, HydraBrush is abrasion-proof due to the following:
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