An observational study in Success and Dental Implant Survival Rate, sponsored by The University of Western Australia. Not yet recruiting at 1 site in Australia. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-08-28.
Sponsored by The University of Western Australia · Observational
This study is a medium-term (6-9 years) follow-up of the health of the tissues surrounding the implant which was treated for peri-implantitis (peri-implant infection) in an already completed study with a 12 month follow-up. Patients who were treated in a randomised controlled trial with a 12 month follow-up will be invited to attend for examination of the implant and an x-ray to assess the bone levels at the implant. Participants will be asked to complete a questionnaire about their overall satisfaction following treatment.
Follow-up of 40 participants who were already enrolled in a randomised controlled trial comparing access flap with and without guided bone regeneration for the treatment of peri-implantitis. The 12 month outcomes have been published. doi: 10.1111/clr.14116 This study will provide a medium term (6-9 years) follow-up of the participants Participants will be invited to attend an examination.
Full mouth probing Full mouth bleeding and plaque scores Peri-implant probing depth and recession measurements at the treated implant An intraoral radiograph to evaluate marginal bone levels at the treated implant Questionnaire to evaluate satisifaction with the treatment
Participants will receive maintenance care at the treated implant.
The University of Western Australia is the lead sponsor of 23 studies on the registry; 3 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Participants from the original RCT ID 37382408. Participants of the randomised controlled study for the regenerative treatment of peri-implantitis who still have their implant in situ
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion criteria
- individuals who were not enrolled in the previous study ID 37382408
6 -9 year follow-up after treatment of peri-implantitis
Other: Medium-term follow-up of peri-implantitis treatment
clinical examination
Number of implants with peri-implant health
implant present + peri-implant probing depths ≤ 5 mm + absence of bleeding BOP ( 1 spot of bleeding allowed) + absence suppuration + no additional bone loss as compared to baseline measures
Time frame: minimum 6 years
peri-implant probing depth (mm)
probing depth at 4 sites per implant. Deepest peri-implant probing depth
Time frame: minimum 6 years
peri-implant bleeding on probing (presence or absence)
number of sites with presence or absence of BOP
Time frame: minimum 6 years
peri-implant suppuration (presence or absence)
presence or absence of suppuration on probing or palpation
Time frame: minimum 6 years
peri-implant mucosal recession (mm)
level of peri-implant mucosa measured from fixed a reference point as compared to baseline
Time frame: minimum 6 years
radiographic marginal bone level (mm) compared to bone level at baseline
from intraoral radiograph
Time frame: minimum 6 years
patient reported outcomes on VAS scale 0 - 100 mm
VAS questionnaires - regarding overall satisfaction with appearance of implant following treatment, overall satisfaction with implant treatment, Would you have had an implant if you had known you would need the treatment. Do you have pain at the implant site, do you have a bad taste from the implant site.
Time frame: minimum 6 years
radiographic marginal bone level ( mm) compared to 12 month marginal bone level
mesial and distal radiographic marginal bone levels (mm) compared to the marginal bone levels at 12 months following treatment
Time frame: minimum 6 years
Plan to share: Undecided
Start is estimated for Oct 2026; primary completion for Jan 2027, 3 months later.
How these figures are worked out, and which studies are left out of them.
This study is not yet recruiting, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.
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The University of Western Australia