Dental Restorations.

However, when bone dehiscence is present at the time of implant placement, different bone regenerative techniques, such as guided bone regeneration (GBR), need to be used to allow the correct placement of a dental implant. "Biological complications" refer to disturbances in the function of the implant, characterized by biological processes that affect the supporting tissues, including peri-implant diseases [[62]]. A rise in requests for esthetic dental treatments has led to the introduction of new materials, treatments and procedures able to provide non-invasive, long lasting and predictable treatment options [[1], [3]]. The adhesive reattachment of a fragment, combined with vital pulp-therapy procedures, represents the first-choice treatment option in cases of both simple and complicated crown fractures [[4], [16]]. Microbial plaque accumulation is considered to be the most important factor in the pathogenesis of peri-implant diseases, similarly to periodontitis, and the presence of micro-gaps at the implant-abutment interface has been implicated in several studies as the source of bacterial penetration [[66]]. [Extracted from the article]