Final answer:
Vigorously scrubbing the teeth with a toothbrush can lead to the abrasion of tooth enamel, which can make teeth more susceptible to sensitivity and decay.
Step-by-step explanation:
The vigorous scrubbing of the teeth with any toothbrush can cause abrasion of tooth enamel, not the whitening of teeth, removal of plaque, or strengthening of tooth enamel. Although toothbrush abrasives are designed to remove plaque, excessive force can lead to the erosion of the protective enamel layer of the teeth. While some may believe that harder brushing leads to cleaner teeth, it is important to brush effectively rather than forcefully to maintain oral health.
Enamel erosion can lead to increased tooth sensitivity and may predispose teeth to cavities and other forms of dental caries. Instead of aggressive brushing, using a toothbrush with soft bristles and applying gentle pressure along with toothpaste containing fluoride can help prevent tooth decay and protect the teeth from mechanical and chemical damage.