Immediate or Delayed - Clinical Evidence Guiding Implant Placement Protocol

Abstract Background: Dental implant placement is a cornerstone in modern prosthodontics, providing predictable functional and esthetic rehabilitation for partially or completely edentulous patients. A long-standing debate exists regarding whether implants should be placed immediately after tooth extraction or delayed until socket healing is complete. Immediate implant placement is attractive for reducing treatment time and preserving alveolar dimensions, whereas delayed placement is traditionally considered safer and more predictable in terms of osseointegration and peri-implant stability. Objective: To systematically review and discuss the available clinical evidence comparing immediate and delayed implant placement protocols with respect to survival rates, marginal bone stability, esthetic results, patient satisfaction, and potential complications. Methods: This narrative review synthesizes findings from randomized controlled trials, cohort studies, and systematic reviews published in the last two decades. Emphasis is placed on quantitative outcomes (implant survival, marginal bone loss, soft tissue stability) and qualitative aspects (esthetic perception, patient-reported satisfaction, and clinical applicability). Results: Evidence indicates that survival rates for both protocols are consistently high (90–98%). Immediate placement demonstrates clear advantages in reducing treatment time, minimizing surgical interventions, and preserving alveolar ridge dimensions. However, it shows higher risks in sites with infection, insufficient bone volume, or poor soft tissue quality. Delayed placement, while extending rehabilitation time, offers greater predictability in osseointegration and esthetic outcomes in compromised sites. Conclusion: There is no universal superiority of either protocol; rather, patient-specific factors dictate the choice. Immediate placement is advantageous in carefully selected cases with intact sockets, adequate bone, and high patient demand for rapid treatment. Delayed placement remains the standard in compromised sites where infection, bone grafting, or complex esthetic demands are present. Future directions point toward hybrid or staged approaches, combining the benefits of both protocols.