Gum ridge refers to the firm and raised area on the gums that surrounds the teeth. Synonyms for gum ridge include gingival ridge, gum line, gum crest, and marginal gingiva. The gingival ridge is the edge where the gum meets the tooth, forming a protective seal around the teeth. The gum line is the line where the gum and tooth meet, creating a barrier against bacteria and other harmful substances in the mouth. The gum crest is the highest point of the gum ridge, while marginal gingiva describes the gum tissue surrounding the teeth. Regardless of the term used, maintaining healthy gums and gum ridges is essential for good oral health.