치아를 둘러싸고 지탱하는 잇몸이나 치조골 등의 조직에 관한.
Relating to or affecting the structures surrounding and supporting the teeth, including the gums and bone.
예문:
"Early detection of periodontal issues can prevent tooth loss in the future."
"The patient was referred to a specialist for advanced periodontal therapy."
"Proper oral hygiene is the best defense against periodontal infections."