Statement of the Problem: the periodontal stability after surgical crown lengthening procedures is an important item for the final prosthetic restoration success. The appropriate time for healing is still controversial in the specific published literature. Purpose: this review aims at answering a specific PICO question: what is the optimal time for the final fixed prosthetics procedures, after the surgical crown lengthening techniques are performed in clinically healthy patients, with good periodontal condition, to ensure predictable stable periodontal results. Materials and methods: applying standard selection criteria for studies, detailed search strategies were developed for each database, data collection was undertaken using specially designed data extraction forms and quality assessment was done. Results: in the limitations of the review we performed, we believe that the answer to the initial question can only be a recommendation: in clinically healthy patients with good periodontal condition, it is recommended a waiting period of 12 months compared to 3 or 6 months, the studies made between these periods showing a tendency to stabilization of the periodontal structures at all levels. Conclusions: drawing a conclusion based on scientific data requires the development of standardized studies on this topic, on a larger period of time.