I think it is important to first look for a way to keep the existing tooth in use for as long as possible.
Even with the same symptom, the extent of damage and current condition differ for every patient, so I examine the tooth fully before deciding what treatment is needed.
In conservative dentistry, treating the problem is only part of it — thinking about how to keep the remaining tooth for as long as possible matters just as much.
I try not to miss any treatment that is needed, while looking for the option that lets a savable tooth serve you longest.