Dental insurance plans categorize treatments differently, and this includes periodontal (gum-related) and endodontic (root canal) treatments. Whether these treatments are considered basic or major services depends on the specific plan. Basic services often include routine procedures like fillings and extractions, while major services typically cover more complex work like root canals and gum surgery. The categorization affects how much the insurance pays and how much the patient owes, so it’s important to check individual plan details.