In addition to potentially wearing down your enamel, these harsher bristles can affect your gums, and over time even cause them to recede. Receding gums may not seem like a serious problem but there is a domino effect – receding gums increase your chances of sensitivity and even cavities at the site where the surface of the root is exposed. If recession advances to a point where the supportive bone structure is threatened, your teeth can suffer serious damage or you could even lose them. Soft bristles do just as good a job without causing damage to delicate oral tissues and valuable tooth enamel. If plaque buildup cannot be removed with a soft brush then it is probably time for a cleaning by your dental professional.
2.Brushes without rounded tips.
It may seem like a small, insignificant detail but rounded, polished bristle tips are as important to protecting your oral health as using a soft bristle brush. Why? For the same reason as medium and hard brushes can be damaging. Sharp, squared, irregular ends can wear down tooth enamel and cause damage to sensitive gums and other oral tissues.
According to a study published in the Journal of Clinical Periodontology on the topic of the ratio of acceptably rounded tips to unacceptably rounded tips on a variety of replaceable head power brushes, “a greater portion of unacceptably rounded bristles might cause more harm to oral soft tissues during use”. This brings up another issue to be aware of – just because a toothbrush says “rounded tips” on the package does not mean that the quality is as high as you’d expect.