Did you know solid-head power toothbrushes are better hygiene-wise compared to the hollow-head ones? According to researchers from University of Texas Health Science Center at Houston, School of Dentistry, hollow-head power toothbrushes retain more bacteria. In nine out of ten comparisons, microbial counts in solid-head power toothbrushes were lower than the hollow-heads, lead research author Prof. Donna Warren Morris, R.D.H., M.Ed., revealed. “Toothbrushes can transmit microorganisms that cause disease and infections,” Prof. Morris said. “[But] a solid-head design allows for less growth of bacteria.” She added that the bristles should be soft and nylon-made.
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