How long does it take for a bruised lingual/aveolar nerve to completely heal?

Healing time varies: Healing speed after injury to either the lingual or the inferior alveolar nerve varies depending on the severity of the damage. It may take anywhere from several days to several months. Any residual sensory deficits after six months are assumed to be permanent. In some cases, severe sensory loss can be diminished by use of microsurgical nerve grafting techniques, with varying degrees of benefit.

It varies: Anywhere from just a few weeks to as long as 6 months or more in some instances. It is important to have a fairly detailed sensory examination after injury to the nerve to use as a baseline for monitoring improvement. If it is truly bruised, it usually does get better on its own.

Varies a lot: Could be a few weeks to a few months. In general, nerves are the slowest healing tissues in our bodies.