Accuracy of Two Methods of Making Impressions for Complete-arch Implant Supported Fixed Prosthesis

Launched by SHANGHAI NINTH PEOPLE'S HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIVERSITY · Mar 27, 2024

Keywords

ClinConnect Summary

This clinical trial is looking at two different ways to take impressions (or molds) of the mouth to see which method works best for creating a fixed prosthesis—essentially, a set of artificial teeth supported by dental implants. The trial will compare a digital method, which uses advanced technology, with a traditional method that has been used for many years. The goal is to find out which method provides a more accurate fit for patients who need new teeth.

To participate in the trial, you need to be between 18 and 70 years old and have lost teeth in your upper or lower jaw that cannot be restored. You also need to be able to get dental implants, which are small posts placed in the jawbone to support artificial teeth. It's important that your gums are healthy and that you have enough bone for the implants. If you have a strong gag reflex or certain dental conditions, you may not be eligible. If you decide to take part, you'll be asked to sign a consent form, and the study will help you understand what you can expect throughout the process.

Gender

ALL

Eligibility criteria

• Inclusion Criteria:
• • Age 18-70 years old (including 18 and 70 years old);
• • The patient's maxilla or mandible cannot be preserved due to missing teeth or remaining teeth proposed for implant-retained restoration;
• • The patient's missing teeth area is available for placement of 4-6 implants;
• • Completion of osseointegration of the patient's implants after implant surgery;
• • The patient has at least 2 mm width of keratinized mucosa in the remaining alveolar ridge;
• • The patient voluntarily participates in the trial and signs an informed consent form
• Exclusion Criteria:
• • The patient has a severe gag reflex;
• • The patient has an intermaxillary distance of less than 20 mm in the posterior region;
• • The distance between the two implants is less than 10 mm;
• • Implants fitted with composite abutments with the abutment screw holes penetrating at an angle greater than 60 degrees to the alveolar ridge;
• • Other patients judged by the investigator to be unsuitable for inclusion