A customised digitally engineered solution for fixed dental rehabilitation in severe bone deficiency: A new innovative line extension in implant dentistry

In the 1940s, Dahl first introduced and described subperiosteal implants that were placed onto the alveolar ridge without rigid fixation (Dahl, 1943), but due to high complication rates, including implant loss, exposure, and flap dehiscence, subperiosteal implants have not been recommended for decades. However, the principle of subperiosteal implant placement onto the alveolar ridge rather than drilling implants into the bone might prove to be both simple and innovative, and could be a potential strategy for avoiding soft tissue complications leading to peri-implantitis, and bone and implant loss in complex cases (Lin et al., 2013).

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