Clinical and Patient Outcomes of 4 mm Ultra-Short vs. 8 mm Implants With Bone Augmentation in the Back Upper Jaw

This study aims to compare 2 different groups of patients with both a healed site in the upper posterior sector after extractions, one treated with ultra-short implants, and another with long implants with bone regeneration. The objective is to evaluate if short-implants are superior in terms of better clinical outcomes, survival rates and safety, reduced surgical time, postoperative discomfort, and complication risk compared to conventional implants and bone regeneration.

NCT Number	NCT07417293
Lead Sponsor	Universitat Internacional de Catalunya
Conditions	Posterior Atrophic Maxilla
Enrollment	35 participants
Start Date	2026-02-20
Primary Completion	2028-07-01 (estimated)
Study Completion	2029-07-01 (estimated)
Updated on ClinicalTrials.gov	2026-02-18