Toothpaste with antibiotics, steroids, stannous fluoride toothpaste supplements will prevent and treat many non-cosmetic dental problems--and may improve body microbiome benefits. Small amount of table salt by finger massage of tooth will help also.  

 I conclude that many, if not most, dental problems can be prevented by periodic dental/gum massage with triple antibiotic ointment, steroid ointment, and stannous fluoride supplements.  Also suggested was twice weekly saltwater mouth rinsing, which should reduce the bacterial causes of all dental problems.  This is especially true for those over 40 years old when "aging" begins to weaken bone-teeth-gum togetherness such that bacteria begin to do their damage.  General "keep your mouth clean" recommendations are made for good overall health, because there is growing evidence that many disorders are related to oral gestations of microtoxins that impact our microbiome revealed by the multiple dysfunctions caused by the simple Corona-19 virus.  Dental self-treatment and mouth hygiene will be major public health procedures helping everyone.