Multiple choice Pulpal necrosis and periapical pathosis may be attributed to which of the following? Increased tissue pressure Inability of pulp to expand Lack of collateral circulation Low compliance system All of the above Reveal answer Fill a bubble to check yourself E Correct answer Explanation Increased tissue pressure, inability of pulp to expand, lack of collateral circulation and low compliance system are the factors leading to pulp necrosis and periapical pathosis.