What combination of nerves must be anaesthetised for the extraction of the lower right second molar tooth?

For the extraction of the lower right second molar tooth, anaesthetising the lingual, inferior dental, and long buccal nerves is essential because of their specific roles in sensory innervation of the relevant areas.

The inferior dental nerve is a branch of the mandibular nerve and provides sensation to the lower teeth, including the second molar. Ensuring this nerve is anaesthetised allows for the numbness needed during the extraction process.

The lingual nerve serves to provide sensation to the tongue and the floor of the mouth. Anaesthetising this nerve is necessary to prevent any discomfort or sensation that might be experienced during the procedure, as the proximity of the second molar to the lingual nerve means that any movement could otherwise elicit pain.

Additionally, the long buccal nerve supplies sensation to the buccal mucosa and the gingiva in the area of the lower molars. Blocking this nerve helps alleviate pain stemming from the gums and surrounding soft tissues during the extraction.

Combining the anaesthesia of these three nerves ensures comprehensive coverage for both the tooth being extracted and the surrounding tissues, making the procedure more comfortable and effective for the patient.