ABE Dental Trauma Management Flashcards

What is the most critical factor determining prognosis of a replanted avulsed permanent tooth?

Answer: Extra-alveolar time and storage medium

Extra-alveolar time and storage medium are the most critical factors because PDL cell viability determines whether periodontal healing can occur.

What is the ideal storage medium for an avulsed permanent tooth when immediate replantation is not possible?

Answer: Hank's Balanced Salt Solution (HBSS) or milk

Hank's Balanced Salt Solution (HBSS) is the optimal storage medium; milk is the best practical alternative available in most emergency situations.

For an avulsed permanent tooth with an OPEN apex and less than 60 minutes of dry extra-alveolar time, what endodontic management is recommended after replantation?

Answer: Monitor for signs of necrosis; initiate root canal only if necrosis develops

Immature teeth with open apices have potential for pulp revascularization, so endodontic treatment is deferred unless signs of pulp necrosis develop.

What type of splint is recommended for replanted avulsed permanent teeth according to IADT guidelines?

Answer: Flexible (physiologic) splint for 2 weeks

A flexible (physiologic) splint for 2 weeks is recommended to allow physiologic tooth movement that promotes PDL healing and reduces ankylosis risk.

Which type of root resorption following tooth replantation indicates PDL cell death and direct bone-to-cementum fusion?

Answer: Replacement resorption (ankylosis)

Replacement resorption (ankylosis) occurs when necrotic PDL cells are replaced by bone, fusing the root directly to alveolar bone without an intervening PDL.

What systemic antibiotic is recommended by IADT guidelines for adults following tooth replantation?

Answer: Amoxicillin 500 mg TID for 7 days

Amoxicillin 500 mg three times daily for 7 days (or doxycycline) is recommended by IADT guidelines to reduce infection risk during the critical healing period after replantation.