Randomised controlled trial of the effect of different dental implant collar designs on the oral tissue response.

Dental implants are a common and effective solution for replacing missing teeth, but the long-term success of an implant depends heavily on how well the surrounding gum and bone tissue remains stable and healthy over time. Different implant designs — particularly around the collar or neck of the implant where it meets the gum — may influence how well that tissue is maintained. This trial is comparing two commonly used dental implant collar designs to see which one better supports the health of surrounding tissues. Patients needing two implants at Griffith University Dental School will receive one implant of each design, allowing a direct comparison within the same person. Routine check-ups and a one-off non-invasive plaque sample will be used to track tissue health over time. You may be eligible if you need two dental implants, have sufficient bone and gum tissue in good condition, are over 18 years old, and maintain reasonable oral hygiene. People with untreated gum disease, systemic illnesses that affect healing, pregnancy, or poor oral hygiene would generally not qualify.