After a tooth has been extracted, what is the main reason for fitting a temporary bridge rather than a permanent one?

Fitting a temporary bridge after a tooth extraction primarily allows for bone resorption to occur properly. After a tooth is removed, the jaw bone may change shape as it heals, which is a natural part of the process. A temporary bridge provides functional support and aesthetic benefits during this healing period without committing to a permanent solution, which would need to be fitted to the final bone structure.

During the healing phase, the socket where the tooth was extracted undergoes changes as the bone remodels and adapts, often shrinking or changing in shape. If a permanent bridge is placed too early, it may not fit correctly once the bone has fully healed and stabilized, potentially leading to discomfort, misalignment, or the need for additional procedures to correct issues. Therefore, the use of a temporary bridge allows for proper adaptation to any changes in the oral structure, ensuring better long-term outcomes when a permanent bridge is eventually fitted.

While factors like cost and patient comfort are also considerations in dental treatment planning, the biological healing process and bone resorption are the primary reasons for choosing a temporary bridge over a permanent one immediately following an extraction.