She stated that while using the brush heads she noticed they vibrated much more aggressively.She noticed that the brush seemed to be damaging her gums.She tried using one of the other brush heads from the package, hoping it would resolve the issue but had the same problem.She then stated that on one occasion she chipped one of her front teeth while using the brush head, the plastic part of the brush head hit her tooth.She did not recall the date or time of the incident, but estimated that it was about two months ago.
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