3D Printing for the Fabrication of Mandibular Implant Overdentures

Launched by MCGILL UNIVERSITY · Nov 30, 2023

Keywords

ClinConnect Summary

This clinical trial is studying whether new dentures made using 3D printing and computer technology are more comfortable and satisfying for older adults who have lost all their teeth, compared to traditional dentures. The goal is to see if these digital dentures fit better and improve the quality of life for seniors, making dental care more accessible and affordable.

To participate in this study, you need to be at least 60 years old, have no teeth, and have had two dental implants placed in your lower jaw for at least three months. You should also be able to understand and communicate in English or French and be able to give written consent. If you join the study, you'll receive two sets of dentures—one made with traditional methods and one made digitally. You will wear each pair for three months and share your thoughts on how they feel. This trial will help researchers understand the benefits of these new dentures and improve the process for future patients.

Gender

ALL

Eligibility criteria

• Inclusion criteria:
• • elderly according to the age cut-off purported by the World Health Organization (age \>=60 years) and living independently;
• • completely edentulous;
• • no tooth extraction within the past 12 mo;
• • two Straumann tissue level RN implants symmetrically distributed in the anterior mandible for 3 or + mo before the trial interventions;
• • desire to receive both upper denture and lower IMO with new stud attachments;
• • good understanding of spoken and written English or French;
• • Ability to provide written informed consent.
• Exclusion criteria:
• • severe systemic disease or needing frequent hospitalization (i.e. American Society of Anesthesiologists Physical Status class \>II);
• • evidence of cognitive or motor impairment;
• • acute or chronic symptoms of parafunctional or temporomandibular disorders;
• • intraoral pathologies, either acute, progressive, potentially malignant or capable to hamper denture fit;
• • signs of endosseous lesions or residual dental structures in panoramic radiographs;
• • signs of implant failure, including clinical mobility, peri-implant radiolucency, unacceptable bone loss (0.2mm/year after 1st year, or \<2mm any time) and persistent signs/symptoms (pain, neuropathy, infection or exudate).