Category: O

A direct physical and functional relationship between organic viable bone and the external surface of a stationary, load‐bearing implant as revealed when viewed under a light microscope.  

A direct structural and functional connection between ordered, living bone and the surface of an immobile, load‐bearing implant as detected on a light microscopic level.  

Loading of temporary orthodontic implants immediately after placement, without an intervening period of unloaded healing.  

Inflammatory response of the gingiva to microbial plaque, modified or accentuated by oral contraceptives.  

An abnormal opening between the nasal cavity and the mouth.  

An abnormal opening between the cutaneous surface of the face and mouth.  

An abnormal opening between the maxillary sinus and the mouth.  

A fibroma, normally of the gingiva, presenting with areas of calcification or ossification.  

The most numerous collagenous fiber group of the periodontal ligament; run from the cementum outwardly and coronally to insert into the bone.  

A class of cysts derived from odontogenic epithelium, such as primordial, dentigerous, and lateral periodontal cysts.