Anodontia

This trial tests whether 3D-printed dentures work as well as conventionally made ones for people who have lost all their teeth. Each participant will wear both types of dentures for a set period, and researchers will measure how accurately each fits, how much force they can bite …

This trial compares two attachment systems, OT-Equator and Ball and Socket, used to hold a lower denture in place with a single dental implant. Researchers will measure how much force is needed to pull the denture off, along with gum health and bone levels, over 12 months. The go…

This trial tests a zirconia wing bridge, a false tooth with two wings bonded to the back of neighboring teeth, as a way to replace a single missing front tooth. About 8 people with one missing front tooth will receive the bridge and be checked every 6 months to see if it stays fi…

This study compares two types of dental implant attachments used in full-arch fixed dentures (All-on-4) for people with no teeth in the lower jaw. The OT-Bridge system is tested against standard multiunit abutments to see which leads to higher patient satisfaction and fewer prost…

This study tested a special drilling technique called osseodensification, which compresses bone instead of removing it, to prepare the jaw for dental implants. Twenty-three adults with missing teeth received about 40 implants using this method. The goal was to see if the techniqu…

This completed study tested two types of attachments (ball-and-socket vs Equator) for lower jaw implant-supported dentures in 24 adults aged 55-60. Researchers measured bone loss around the implants and how bite forces were distributed. The goal was to see which attachment provid…

This study tested two methods to make gum tissue thicker around dental implants in the front of the mouth. 36 adults who needed a single tooth implant received either a graft of their own gum tissue or a collagen matrix. The goal was to see which approach better improved gum thic…

This study tested two types of denture material for people with no teeth who got implant-supported overdentures. Sixteen patients received either a standard acrylic denture or a flexible resin one. Researchers measured gum pocket depth, plaque buildup, and Candida yeast growth to…

This study looked at two types of ceramic bridges used to replace one or two missing back teeth. Researchers followed 31 people for up to 4 years to see which bridge material had fewer problems like fractures or loosening. The goal is to find out which option works better and las…

Researchers compare two devices, Amy Check and Osstell, for measuring the stability of dental implants placed during a graftless closed sinus lift. The trial enrolls 30 adults who need tooth replacement in the upper back jaw and have limited bone height. Each participant receives…

Researchers compare two dental implant connection designs to see how each affects the bone around implants that hold lower dentures. Fourteen fully edentulous men, aged 45 to 60, receive two implants in the lower jaw, with one group getting internal tri-lobe implants and the othe…

This study tested two different attachment systems (Equator and Novaloc) for lower dentures held in place by dental implants. The goal was to see which one helps dentures stay in place better and improves quality of life for people with no teeth. 26 adults aged 60-70 took part. T…

This study looked at how satisfied people with no teeth were with two different types of dentures held in by four implants. Ten patients tried each type for six months and rated their comfort and quality of life. The goal was to see which option patients liked better.

This study tested whether carving the retromolar pad area on lower dentures improves satisfaction and quality of life for new denture wearers. Fifty adults with no teeth and no prior denture experience each tried both a carved and a non-carved lower denture. Researchers measured …

This study tested two over-the-counter gels placed under removable dentures to see if they improve comfort, retention, and dry mouth symptoms. 67 adults aged 18-99 with dentures made at the University of Iowa participated. Participants rated their comfort and denture fit on a sca…

This trial tests four ways of making upper denture bases to see which fits the mouth most accurately. Thirteen adults with no teeth in their upper jaw receive dentures made by conventional molding, fully digital 3D printing, and two hybrid methods. Researchers scan each denture a…

This study tests whether watching AI-made educational videos can improve how older adults care for their dentures and feel about their oral health. About 50 people over age 50 who use removable dentures will watch the videos and answer questions. The goal is to see if this simple…

This study tested two types of magnetic attachments (flat vs. dome-shaped) for lower dentures held by implants. Fourteen adults with no teeth in their lower jaw took part. The goal was to see which design keeps dentures more securely in place.

This study tested how accurate two digital scanning techniques are for making dental impressions in people who have lost all teeth and received implant-supported bridges (All-on-4 or All-on-6). Eleven adults were scanned with both a special camera (photogrammetry) and a wand-like…

This study checked on dentures with SR Phonares II teeth that had been worn for over 10 years. Researchers examined 17 people's dentures to see how many were still in use and how well they held up in looks, function, and health. The goal was to learn about the long-term survival …