NCT03958448

Comparison of Extra-short (4 mm) Implants Used as Distal Support of a Maxillary Full-arch Fixed Dental Prosthesis vs. 10 mm Implants Installed After Sinus Floor Elevation.

Comparison of Extra-short (4 mm) Implants Used as Distal Support of a Maxillary Full-arch Fixed Dental Prosthesis vs. 10 mm Implants Installed After Sinus Floor Elevation. A Randomized Clinical Trial

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 20 (actual)
• Sponsor: ARDEC Academy · Network
• Sex: All
• Age: 18 Years – 75 Years
• Healthy volunteers: Accepted

Summary

Recently, 4 mm long implants with a standard diameter have been used for the restoration of the posterior edentulous mandible with favorable results. However, randomized clinical trials reporting the results from full-arch fixed dental prosthesis that included 4 mm long implants placed in the posterior regions of the maxilla have not been published yet. The aim of the present study will be to compare the survival and success rates of 4 mm implants used as distal support of a maxillary full-arch fixed dental prosthesis with standard (10 mm) implants placed in association with a bilateral sinus floor augmentation procedure

Detailed description

Two groups will be randomly prepared, the Short group and the Standard group. In the Short group, one 4 mm long and 4.1 mm in diameter implant (extra-short implant) will be installed in each side of the posterior region of the maxilla. In the Standard group, bilateral sinus floor elevations will be performed. After 4 months of healing, one 10 mm long and 4.1 mm in diameter implant (standard implant) will be installed into each augmented sinus. In the frontal region, four 10 mm long implants will be installed in both groups. Clinical assessments and x-rays will be taken at prosthesis delivering (6-8 weeks after implant installation), and after 6, 12, 18 and 24 months.

Conditions

• Alveolar Bone Loss

Interventions

Type	Name	Description
PROCEDURE	Placement of extra short implants	placement of an extra short implant in the posterior edentulous ridge
PROCEDURE	maxillary sinus lift, maxillary sinus elevation, maxillary sinus augmentation
PROCEDURE	placement of standard implant	placement of standard implant in the posterior edentulous ridge after maxillary sinus augmentation

Timeline

• Start date: 2015-10-01
• Primary completion: 2018-12-02
• Completion: 2019-04-02
• First posted: 2019-05-22
• Last updated: 2019-05-22