NCT06852599

Brief Summary

The aim of the study is to examine potential influencing factors on the changes in the periodontal parameters probing pocket depth (PPD), bleeding on probing (BOP), and alveolar bone loss (ABL) on implants and control teeth (using a split-mouth design) over five (T-5), 7.5 (T-7), and ten years (T-10) of supportive periodontal care (SPC). For this purpose, 150 patients with periodontitis and implants are re-examined cross-sectionally (T0), and the changes in the main peri-implant and periodontal target parameters are compared retrospectively at the specified observation time points (T-5, T-7, T-10). Potential influencing factors to peri-implant conditions include patient-related factors, therapy-related factors and implant-related factors. In addition, patients will be surveyed using validated questionnaires on oral health-related quality of life (OHIP-G14), and a number of common risk factors for periodontits and peri-implant conditions.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
150

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Sep 2023

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 1, 2023

Completed
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 30, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 30, 2024

Completed
9 months until next milestone

First Submitted

Initial submission to the registry

February 24, 2025

Completed
4 days until next milestone

First Posted

Study publicly available on registry

February 28, 2025

Completed
Last Updated

March 6, 2025

Status Verified

March 1, 2025

Enrollment Period

9 months

First QC Date

February 24, 2025

Last Update Submit

March 3, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • changes in periodontal pocket depths

    over five, 7.5, and ten years of supportive periodontal care

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The study cohort is recruited from patients of the Department of Conservative Dentistry at Heidelberg University Hospital who have undergone systematic periodontal therapy, have a dental implant, and meet the other inclusion criteria.

You may qualify if:

  • Patient-related:
  • At least one dental implant present
  • Age ≥ 18 years at the beginning of the observation period
  • Verbal and written consent
  • Complete periodontal and dental status at one of the defined observation time points with 6 probing sites per tooth/implant and bleeding on probing (BOP) recorded during the periodontal maintenance phase
  • Locally:
  • a contralateral control tooth to the implant is present at the first defined observation time point
  • BOP recorded on the implant

You may not qualify if:

  • No written and verbal consent
  • Younger than 18 years

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Heidelberg University

Heidelberg, Baden-Wurttemberg, 69120, Germany

Location

MeSH Terms

Conditions

PeriodontitisPeri-Implantitis

Condition Hierarchy (Ancestors)

Periodontal DiseasesMouth DiseasesStomatognathic Diseases

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

February 24, 2025

First Posted

February 28, 2025

Study Start

September 1, 2023

Primary Completion

May 30, 2024

Study Completion

May 30, 2024

Last Updated

March 6, 2025

Record last verified: 2025-03

Locations