Maxillary Implant Overdentures Retained by Bars or Locator

Launched by UNIVERSITY MEDICAL CENTER GRONINGEN · Nov 28, 2023

Keywords

ClinConnect Summary

This clinical trial is studying the effectiveness of two different types of systems used to hold in place implant-supported overdentures for patients who have lost all their upper teeth (maxillary). The researchers want to compare the outcomes of overdentures that are secured by a bar system, which connects multiple implants, versus those that use locators, which are individual attachments. The main goal is to see how the bone around the implants changes over a 10-year period, and they will also look at how well the implants and overdentures last, the health of the gum tissue around the implants, and how satisfied patients are with their dentures.

To participate, you need to be an adult who has been completely edentulous (without teeth) in the upper jaw for at least a year and has enough bone in the front of the jaw to place implants. You also should have experienced issues with your conventional upper denture. However, if you have certain health conditions, smoke, or have had specific past treatments in your head or neck, you may not be eligible. If you do qualify, you can expect to have your bone health, implant success, gum condition, and overall satisfaction assessed over the next decade. The study is not yet recruiting participants, but it aims to provide important information that could help improve dental care for patients like you in the future.

Gender

ALL

Eligibility criteria

• Inclusion Criteria:
• • Fully edentulous patients or patients with an overdenture in the mandible, who were referred to the Department of Oral and Maxillofacial Surgery (University Medical Center Groningen, the Netherlands) 10 years ago, because they suffered from a lack of retention and stability of the upper (and lower) denture;
• • Edentulous in the maxilla for at least one year;
• • Sufficient bone volume in height in the anterior region of the maxilla to place the implants;
• • The patient was 18 years or older;
• • Sufficient interocclusal space for placement of an overdenture with attachment system;
• • The patient was capable of understanding and giving informed consent.
• Exclusion Criteria:
• Exclusion criteria at the time of treatment:
• • Patients with American Society of Anesthesiologists score (ASA score) ≥ III;
• • Patients who were smoking;
• • Patients with a history of radiotherapy in the head and neck region;
• • Patients with a history of pre-prosthetic surgery or previous implant placement in the maxilla.