First intention

• wound edges are approximated and held in place (ex. sutures) until healing occurs
  
• wound is easily closed and dead space is eliminated

Second intention

• occurs with injuries that have tissue loss 
• require gradual filing in of the dead space with connective tissue

Third intention

• involves delayed primary closure 
• occurs with wounds that are intentionally left open for several days for irrigation or removal of debris and exudates
  
• wound is closed by first intention once debris has been removed and inflammation resolves