Category: H

Secondary closure. Healing of a wound in which a gap is left between its edges. Union occurs by granulation tissue formation from the base and the sides. This requires epithelial migration, collagen deposition, contraction, and remodeling during healing. The healing of an infected wound or ulcer, which takes place slowly and may leave a permanent…

Primary closure. Healing of a wound in which the edges are closely reapproximated. Union or restoration of continuity occurs directly with minimal granulation tissue and scar formation. The healing of a clean wound where the tissue reforms quickly. A process that closes the edge of a wound with little or no inflammatory reaction and in…

Implant component placed at stage two surgery to guide periodontal soft tissue healing prior to definitive prosthetic restoration. Typical cross‐sectional design is cylindrical.  

Hyperbaric oxygen therapy. healing: Regeneration or repair of injured, lost or surgically treated tissue.    

The risk of an event occurring in one group compared with another when the primary response variable is the time to event. A hazard ratio of 1 indicates that neither group is more at risk for the event than the other. If the hazard ratio is, for example, 5, then one group is five times…

A removable orthodontic palatal retainer made of acrylic and wire often modified to allow for minor tooth movement or tooth position stabilization.  

Freely anastomosing channels within cortical (dense) bone containing blood and lymph vessels, and surrounded by concentric bone lamellae. A minute vascular canal located in osseous tissue. Named for Havers, an English anatomist of the late seventeenth century. A fine canal which runs vertically through the Haversian systems in compact bone, containing blood vessels and lymph…

Procurement of a graft from a donor site. To take something for use elsewhere, e.g. a piece of skin for a graft or eggs for IVF. To obtain samples or remove bacteria or other microorganisms from a culture.  

A tactile feedback technology that takes advantage of the sense of touch by applying forces, vibrations, or motions to the user. Refers to touch sensation and information transmitted through body movement and/or position.