INBDE (Integrated National Board Dental Examination) Practice Exam

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How should a permanent tooth with an open apex that is extruded 4mm be treated?

CaOH
Pulpotomy with CaOH
Reposition, splint, monitor closely for vitality
Replanted, splinted, and primary endo

The correct answer is: Reposition, splint, monitor closely for vitality

A permanent tooth with an open apex that is extruded 4mm should be treated by repositioning the tooth to its proper position, splinting it to adjacent teeth for stabilization, and closely monitoring its vitality. In cases of dental trauma resulting in tooth extrusion, it is important to reposition the tooth as soon as possible to ensure the best chances of successful outcomes. Splinting helps in stabilizing the tooth and supporting its repositioning. Monitoring the vitality of the tooth is crucial to assess any potential damage to the pulp tissue and to determine the need for further treatment. Options A, B, and D involve procedures such as CaOH application, pulpotomy, and replantation, which are not the ideal treatments for a permanent tooth with an open apex that is extruded. The most appropriate initial treatment in such a case is repositioning, splinting, and close monitoring for vitality.