Background: the prevalence of peri-implant diseases is constantly growing, particularly with the increasing use of dental implants. As such, achieving healthy peri-implant tissues has become a key challenge in implant dentistry since it considers the optimal success paradigm. This narrative review aims to highlight the current concepts regarding the disease and summarize the available evidence on treatment approaches clarifying their indications for usage following the World Workshop on the Classification of Periodontal and Peri-implant Diseases (2017). Methods: we reviewed the recent literature and conducted a narrative synthesis of the available evidence on peri-implant diseases. Results: scientific evidence on case definitions, epidemiology, risk factors, microbiological profile, prevention, and treatment approaches for peri-implant diseases were summarized and reported. Conclusions: although there are numerous protocols for managing peri-implant diseases, they are diverse and nonstandardized, with no consensus on the most effective, leading to treatment confusion.

A retrospective review of 982 patients treated for basal cell carcinoma (BCC) was conducted over a period of 8 years from 1996 to 2004. Of these patients, 16 presented a margin involvement. Two cohorts of patients with involved margin were identifi ed: the group whose basal cell carcinoma was re-excised, and the "wait and see" group. Both sets of results obtained were compared, and then matched with recent international literature reviews. Reexcision is our current practice for incompletely excised tumor. However during the period examined only 36 patients of 116 with margin involvement, proceeded to re-excision, and of the remaining 80 patients just 39 were followed-up. The others were missed mainly because of the diffi culty of attending follow-up consultations because of advanced age, poor general conditions, and unavailability of transport facilities. On the basis of several points, including a high number of residual tumors detected in the re-excised patients, and diffi culty in maintaining diligent follow-up in the "wait and see" group, we stress the importance of considering an early re-excision in case of margin involvement (focal, lateral, or deep), to avoid a signifi cant risk of recurrence. In this study 16 patients out of 39 in the "wait and see" group had recurrences over 8 years of follow-up; a signifi cant number of recurrences was observed after 5 years. We therefore reserve a clinical follow-up only for patients in whom poor general health dissuades us from re-operation.

No abstract

No abstract

No abstract