What is the most likely result of a failed Ca(OH)2 pulpotomy in primary teeth?

The most likely result of a failed calcium hydroxide (Ca(OH)2) pulpotomy in primary teeth is internal resorption. During a pulpotomy, the goal is to remove the infected or inflamed coronal pulp while maintaining the vitality of the remaining pulp tissue. Calcium hydroxide is often used because of its properties as a pulp capping agent, promoting healing and calcified tissue formation.

If the pulpotomy fails, it can lead to an inflammatory response within the pulp chamber, resulting in the stimulation of the odontoblasts. This stimulation can create an environment conducive to internal resorption, where the dentin structure begins to be absorbed from the inside out. This process typically occurs as a response to unresolved pulp inflammation, which can arise from bacterial infection, incomplete removal of tissue, or failure of the material used in the procedure.

Understanding this outcome highlights the importance of proper technique and observation after a pulpotomy.

In contrast, external resorption tends to occur as a response to factors such as trauma or prolonged inflammation affecting the peri-radicular tissues, while tooth ankylosis is related to the fusion of the tooth to the bone. Necrosis of the pulp signifies complete death of the pulp tissue, which can