The gingiva often possess a textured surface that is referred to as being stippled (engraved points).
[1] Stippling only presents on the attached gingiva bound to underlying alveolar bone, not the freely moveable alveolar mucosa or free gingiva.
Stippling used to be thought to indicate health, but it has since been shown that smooth gingiva is not an indication of disease, unless it is smooth due to a loss of previously existing stippling.
[1] To be more specific, stippling occurs at sites of fusion of the epithelial ridges (also known as rete pegs – depression of epithelium) and correspond to the fusion of the valleys created by the connective tissue papillae (elevation of connective tissue papilla).
An example of stippling could be dots found on a basketball or an orange.