Two-unit Cantilever Implant Prostheses Made of Monolithic Zirconia or PFM

Launched by UNIVERSITY OF GENEVA, SWITZERLAND · Jan 13, 2021

Keywords

ClinConnect Summary

This clinical trial is looking at two different types of dental prosthetics, which are artificial teeth supported by implants. The goal is to see how well these prosthetics last and how they perform over time. One type is made from a strong material called monolithic zirconia, while the other is made from porcelain fused to metal. Researchers want to understand if the type of material affects the success of the dental work, as well as other factors like wear and patient satisfaction.

To participate in this trial, you need to be at least 22 years old and have good oral health. You should have a gap between two teeth in the back of your mouth where dental implants can be placed. However, if you have severe teeth grinding habits, poor oral hygiene, or are pregnant, you won’t be eligible. Participants will receive either type of prosthetic and will be monitored for their performance over time. This study aims to help improve dental treatments for people with missing teeth and provide valuable information for future patients.

Gender

ALL

Eligibility criteria

• Inclusion Criteria:
• • Minimal age of 22 years old.
• • No general medical condition which represents a contraindication to implant treatment
• • Good oral hygiene (PII ≤ 20%), and healthy periodontal tissues (BOP≤ 20%)
• • Two adjacent-teeth gap in posterior maxilla or mandible arch (first premolar, second premolar, first molar, second molar) with an osseointegrated regular or wide-diameter bone-level implant in a prosthetically correct position to allow occlusal screw-retention. Free-end edentulous gaps can also be included
• • Presence of antagonist occlusal units
• Exclusion Criteria:
• • Severe bruxism or clenching habits
• • Patients with inadequate oral hygiene or persistent intraoral infection
• • Women who are pregnant or breast feeding at the day of inclusion
• • Smokers exceeding 15 cigarettes / day, or equivalent; patients chewing tobacco
• • Unable or unwilling to cooperate for the trial period
• • Estimated cantilever crown mesial-distal length \> 10 mm
• • Estimated implant crown height (from implant platform to occlusal contact points) \> 15 mm