What type of healing occurs when surgical wounds are closed using sutures?

The type of healing that occurs when surgical wounds are closed using sutures is known as primary intention healing. This method is characterized by wound edges that are brought together and held in place with sutures, staples, or adhesive. This technique is typically used when the wound is clean, with minimal tissue loss and no contamination. The process of primary intention healing is generally efficient, resulting in minimal scarring compared to other types of healing, as it allows for quicker closure and healing.

In primary intention healing, the formation of granulation tissue is minimal because the wound edges are in close proximity, allowing for faster epithelialization and collagen deposition. This method leads to a more aesthetically pleasing outcome, and the incidence of infection is usually lower due to the tightly closed nature of the wound.

The other options refer to different types of wound healing processes. Secondary intention involves healing from the inside out and is often seen in wounds that cannot be closed directly. Tertiary intention healing, also known as delayed primary closure, occurs when a wound is left open for some time before being closed surgically. Granulation healing pertains to the specific phase during wound healing where new tissue forms, but it is not a type of healing in the context of closure methods.