1) Many common beliefs about dental procedures and oral health are false, such as the idea that brushing teeth too vigorously prevents decay or that dental checkups are unnecessary without apparent problems. 2) Delaying dental treatment can allow infections to spread and worsen, so it is important to seek care for issues like toothaches, swellings, and extractions during pregnancy. 3) Temporary pain relief methods like using powdered medications in a decayed tooth are ineffective and can make the underlying dental problem worse; proper treatment from a dentist is needed to fully address the issue.