NCT07041294

Comparing 7 mm and 5 mm Implants Placed Immediately After Molar Extraction

7 mm Versus 5 mm Diameter Immediate Post-Extractive Implants in the Molar Region: A Multicentre Randomised Controlled Trial

• Status: Active Not Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 70 (estimated)
• Sponsor: Marco Esposito · Network
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

This clinical study aims to evaluate the performance and long-term outcomes of immediate dental implants placed in molar sites after tooth extraction. Eligible patients will receive one implant and a single crown in a posterior area (first or second molar). The study will compare implant and crown success over a five-year period, tracking complications, bone changes, aesthetics, and patient satisfaction. Participants must be at least 18 years old and have sufficient bone to allow immediate implant placement. This research will provide important data on the safety and reliability of immediate implants in posterior areas.

Detailed description

This multicentre randomised controlled trial aims to compare the clinical outcomes of 7 mm versus 5 mm diameter dental implants placed immediately after tooth extraction in the molar region. The goal is to assess whether wider diameter implants offer any advantages in terms of implant survival, complications, bone preservation, and patient satisfaction, when placed in fresh extraction sockets. A total of 70 patients requiring molar tooth extraction and immediate implant placement will be enrolled across 7 centers. Each participant will receive either a 5 mm or a 7 mm diameter implant, allocated randomly. Standardised surgical and prosthetic protocols will be followed. Follow-up visits will assess implant stability, radiographic bone changes, and clinical outcomes over time. Patient-reported outcomes and complications will also be recorded to compare the two groups. Results will be reported at 1 and 5 years after loading. This study may help clinicians make evidence-based decisions when choosing the diameter of implants in molar regions, particularly in immediate post-extraction situations.

Conditions

• Partial Edentulism in the Maxilla or in the Mandible
• Immediate Implant Placement

Interventions

Type	Name	Description
DEVICE	7 mm Diameter Dental Implant	To evaluate immediate post-extraction implants with different diameters (7 vs. 5 mm)
DEVICE	5 mm Diameter Dental Implant	To evaluate immediate post-extraction implants with different diameters (5 vs. 7 mm)

Timeline

• Start date: 2021-10-01
• Primary completion: 2025-05-15
• Completion: 2029-06-01
• First posted: 2025-06-27
• Last updated: 2025-07-08

Locations

1 site across 1 country: Albania