Bone-Level Tapered Implants for Single Tooth Replacement: Immediate vs Delayed Placement-A Multicenter Randomized...

Area of Science:

• Dental implantology
• Oral surgery
• Periodontology

Background:

• Dental implant placement timing is crucial for successful osseointegration and long-term outcomes.
• Immediate implant placement offers potential advantages like reduced treatment time but requires careful case selection.
• Delayed implant placement allows for initial healing and bone remodeling, potentially offering a more predictable outcome in certain situations.

Purpose of the Study:

• To compare the clinical and radiographic outcomes of immediate versus delayed implant placement using bone-level tapered implants.
• To evaluate crestal bone level changes, facial plate thickness, implant stability, survival rates, and patient-centered outcomes at 1 year postloading.

Main Methods:

• A multicenter, prospective, randomized controlled study involving 53 patients undergoing immediate (test) or delayed (control) implant placement.
• Primary endpoint: 1-year assessment of mean crestal bone level changes from implant loading using digital periapical radiographs.
• Secondary endpoints included CBCT-measured facial plate thickness, implant success/survival, stability, soft tissue evaluation, and adverse events.

Main Results:

• No statistically significant difference in mean crestal bone level changes between immediate and delayed implant groups at 1 year (P = .950).
• Facial plate thickness changes were also similar between groups (P = .022).
• Implant survival rates were high in both groups (95.8% immediate vs. 92% delayed).

Conclusions:

• Immediate implant placement in extraction sockets demonstrates comparable outcomes to delayed placement at 1 year postloading.
• The study supports the hypothesis that immediate implant placement is a viable option with predictable results.
• Both immediate and delayed implant placement protocols showed favorable results regarding bone stability and implant survival.