Toothpicks Can Cause Dental Injury and More Toothpicks are quick and convenient when food debris is stuck between teeth, however, they're also a common cause of dental injury. Because they are so sharp, toothpicks can damage the gums and other soft tissue when used carelessly. They are somewhat ineffective, often pushing debris farther between teeth or below the gum line. If you do find yourself using a toothpick, use only [...]