Final answer:
The correct verb for the sentence is 'is,' as the subject 'thirty seconds of exposure' is singular. Proper oral hygiene and regular dental check-ups, along with reducing sugar intake and using fluoride treatments, are essential in preventing tooth enamel damage and dental caries.
Step-by-step explanation:
The correct verb in the sentence 'Research at the University of Adelaide suggests that just thirty seconds of exposure to drinks with high acidity is enough time to permanently damage tooth enamel' should be 'is' rather than 'are'. The subject of the sentence is 'thirty seconds of exposure,' which is a singular noun phrase, and therefore the singular verb 'is' should be used to agree with the singular subject.
Regular dental cleanings are crucial for the early detection of tooth decay and the removal of tartar. Such preemptive dental care can highlight issues like enamel damage due to acidic drinks. To further prevent enamel erosion and cavities, reducing sugar intake is beneficial as it curtails the microbial fermentation of sugars that produce harmful acids. Using sugarless candies or gum, particularly those with sugar alcohols like xylitol, can diminish acid production, although moderation is advised to avoid gastrointestinal issues. Additionally, fluoride treatments and consumption of fluoridated water are effective in strengthening tooth enamel and reducing the occurrence of dental caries.