NCT05350293

Evaluation of the Abutment Type Following Oral Implants in Terms of the Surrounding Bone Height

Evaluation of Two Different Types of Abutments on Post-prosthesis Bone Resorption: A Randomized Controlled Clinical and Radiological Trial

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 32 (actual)
• Sponsor: Damascus University · Academic / Other
• Sex: All
• Age: 20 Years – 50 Years
• Healthy volunteers: Not accepted

Summary

Compare two different types of abutments (molded abutments and computer-designed 3D printed abutments) in terms of the amount of bone loss, and depth of periodontal pockets around the implant during different periods.

Detailed description

In the past few years, the number of research conducted on the designs of abutments and materials has increased. Often, the restoration is done over the implant using standard abutments that the implant company prefabricated, but due to the problems facing the dentist from the occurrence of bone absorption, an increase in the depth of the pocket after restoration, other types of abutment design methods have been introduced as needed (molded abutment made by lost wax technique and computer-designed abutment made using a 3D laser printer), those customised abutments were made special for each patient depending on their conditions.

Conditions

• Missing Teeth

Interventions

Type	Name	Description
OTHER	Molded abutment	The waxed plastic abutment will dismantle, wedged, and poured using a Ni-Cr mixture then it will be trimmed to make it ready to make the permanent restoration over it. The prostheses will be cemented above the abutment using dual-cure resin cement then the final restoration (crown and abutment) will be fixed using a screw-retained manner.
OTHER	3D printed abutment	A marker or Scan body appropriate for the type of implant will be placed on the laboratory implant substitute, a digital scan of the marker will be done in the lab, and the scanned image will be transferred to a computer design software where the prosthesis is designed, In the printing phase, the final prosthesis will be manufactured using a stepwise metal powder supply and a laser fusion process. Making the abutment ready to make the permanent restoration over it. The prostheses will be cemented above the abutment using dual-cure resin cement then the final restoration (crown and abutment) will be fixed using a screw-retained manner.

Timeline

• Start date: 2020-09-02
• Primary completion: 2021-12-11
• Completion: 2022-03-23
• First posted: 2022-04-28
• Last updated: 2022-05-04

Locations

1 site across 1 country: Syria