For a mature tooth with intrusion greater than 7 millimeters, the timing of root canal therapy should be

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Multiple Choice

For a mature tooth with intrusion greater than 7 millimeters, the timing of root canal therapy should be

Severe intrusion of a mature (closed-apex) tooth almost always disrupts the blood supply to the pulp, making pulpal necrosis very likely. When the pulp is necrotic, infection can set in and drive inflammatory root resorption if not treated promptly. For this scenario, the endodontic therapy should be initiated within about three weeks after the injury to control infection and minimize complications, rather than delaying to six weeks or trying to treat too early.

Severe intrusion of a mature (closed-apex) tooth almost always disrupts the blood supply to the pulp, making pulpal necrosis very likely. When the pulp is necrotic, infection can set in and drive inflammatory root resorption if not treated promptly. For this scenario, the endodontic therapy should be initiated within about three weeks after the injury to control infection and minimize complications, rather than delaying to six weeks or trying to treat too early.

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