What treatment should be performed on an upper deciduous molar with caries exposure if the corresponding second permanent premolar is absent?

When dealing with an upper deciduous molar that has caries exposure, the specific treatment choice can depend significantly on the status of the succeeding permanent tooth. In this case, if the corresponding second permanent premolar is absent, it necessitates a particular approach to preserving the deciduous molar.

Opting for endodontic treatment is appropriate under these circumstances. This treatment aims to remove the inflamed or infected pulp tissue from the tooth to prevent further complications. Since the second permanent premolar is missing, preserving the primary molar becomes crucial for maintaining the space for proper dental alignment and function as the child grows. Endodontic treatment allows for the management of the carious exposure effectively, mitigating pain and potential infection while ensuring that this primary tooth remains functional.

Considering other options: pulpotomy is a possibility but encompasses a more conservative removal of the pulp which may not be sufficient in case of a serious infection. Pulp capping primarily serves to protect a vital pulp and is less suitable for a tooth with significant caries exposure. Observation alone would not adequately address the current dental issues and risks associated with the carious exposure in the absence of the permanent tooth. Therefore, endodontic treatment is the most suitable choice in this scenario.