I've never heard of smoothing the bone due to the bruxism issue (periodontal issue makes sense). is this a common practice?

More info needed: It is hard to interpret exactly what you are asking... Is bone recontouring necessary for a patient who has bruxism? If they have periodontal problems secondary to the bruxism, it makes sense. Ask your periodontist for further info.

Me neither: I sense that either something is missing from your explanation or there was a misunderstanding of what you heard or what your dentist was trying to explain to you. If you repost your question with more information, we will try to give you a better answer.

Unclear: I've done a brief review of the literature. Rare cases of excess bone due to forces of bruxism. Haven't found where bone reduction is necessary. Get second opinion from oral surgeon.

See OFP specialist: Bruxism is frequently misdiagnosed or not diagnosed at all. It is a potential cause of tooth wear, periodontal issues and tooth loss, TMJ arthritis and myofascial pain. See OFP specialist for evaluation and management.