The swelling irt 24 appears to be an abscess. But a full mouth XRAY for the evaluation of tooth 22,23,24,25 would be needed in order to know the periodontal status of these teeth. Any previous XRAYS done would also be helpful(pre- treatment).
Next Steps
Medicines, if not taken till now, i.e antibiotics and anti- inflammatory should be started prior to any further treatment.
Do not go for crown placement on any of the teeth till the root canal treatment and evaluation has been completed.
Health Tips
Avoid putting excess pressure on the involved teeth till your crowns are placed. Do warm saline water rinses. Maintain oral hygiene.