Gingiva - Highlights
Gingiva is that portion of the oral mucosa that surrounds and is attached to the cervical portions of the teeth and the alveolar bone.
📝Here are some "Highlights" or a high level overview of Gingiva
Macroscopically, the gingiva is divided into the following -> a) Marginal or free gingiva, b) Attached gingiva and c) Interdental gingiva.
Microscopically the gingiva is a keratinized epithelium, predominantly parakeratinized (75%).
The marginal or free gingiva is a portion of movable (unattached) gingiva surrounding the tooth in a collar like fashion.
The crevice or the small space between the tooth and the marginal gingiva forms the gingival sulcus.
The inner portion of the free gingiva forming the wall of the sulcus is lined by the sulcular epithelium. The sulcular epithelium is non-keratinized.
The attached gingiva is apically continuous with the alveolar mucosa. The attached gingiva and alveolar mucosa are separated by the muco-gingival junction.
The surface of healthy attached gingiva shows “stippling”.
Interdental gingiva is usually wedge or triangular shaped when seen buccally or lingually.
The curved depression of gingival tissue seen in the bucco-lingual plane runs just below the contact points of the two adjacent teeth. This portion of the interdental gingiva is called “Col”.
Col is non-keratinized.
🔎You could dig deeper into the topic
In fact, we delve a lot more deeper into this topic with our cheatsheets/notes -> Gingiva.
You could read in detail about Gingiva with our Revision Ninja - Oral Histology Course bundle!
Apart from Notes, you could also get access to numerous MCQs and Videos with English captions/subtitles on various topics in Histology.