Do retainers with margins at a distance of 1 mm of crestal bone, affect the periodontal integrity of their abutment teeth?

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It was long believed that violating the obsolete term "biological with" will cause gingival inflammation and may lead to crestal bone loss.

Ghada Ayash

I think that the body will tend to create a room between the crest of the bone and the margin for tissue reattachment. With proper crown contour and proper finishing and polishing of the gingival margin and proper maintenance no inflammation will occur

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