ClinicalTrials.gg
RecruitingNCT07905859Updated Oct 30, 2026

Effects Of Periodontal Therapy In Patients With Inflammatory Bowel Disease

An observational study in Periodontal Diseases, IBD and Dysbiosis, sponsored by University of Turin, Italy. Recruiting at 1 site in Italy. Open to participants aged 18 Years to 60 Years. Per ClinicalTrials.gov, last updated 2026-10-30.

Sponsored by University of Turin, Italy · Observational

From the registry’s dates

  • Started Mar 2026; still recruiting 8 months later.
Updated Oct 30, 2026Newly registeredGo to Updates ↓
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
30
Ages
18 Years to 60 Years
Sex
All
01

Study summary

Periodontitis and inflammatory bowel disease have been associated by meta-epidemiologic evidence, although their mechanistic connection needs to be further explored. Oral-gut axis is implicated in the pathogenesis of several chronic inflammatory conditions, but to date no studies have evaluated the impact of periodontal treatment on gut ecology. Thus, the present observational prospective study is aimed at investigating the effect of conventional periodontal therapy on the gut microbiome and parameters of systemic inflammation of patients diagnosed with inflammatory bowel disease.

02

Conditions studied

  • Periodontal Diseases
  • IBD
  • Dysbiosis
  • Inflammation
03

In context

Periodontal Diseases

867 studies on the registry are indexed under Periodontal Diseases; 189 are open to participants now.

This study's planned enrollment of 30 is below the median of 99 across 302 observational studies indexed under Periodontal Diseases.

Browse Periodontal Diseases studies →

Lead sponsor

University of Turin, Italy is the lead sponsor of 214 studies on the registry; 35 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 60 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Adult patients diagnosed with inflammatory bowel disease (IBD), including Crohn's disease and ulcerative colitis, who also present with periodontitis and are eligible to receive periodontal therapy.

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.

Inclusion criteria

  • clinical and instrumental diagnosis of ulcerative colitis or Crohn's disease
  • periodontitis Stage III or IV
  • between 20 and 29 kg/m2
  • free diet
  • presence of at least 20 teeth

Exclusion criteria

Exclusion Criteria:

  • systemic diseases (including diabetes, thyroid, liver, or kidney diseases)
  • dietary allergies
  • use of antibiotics or probiotics during the previous 30 days
  • pregnancy or breastfeeding
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
30 participants (estimated)
Target follow-up
3 Months
Patient registry
Yes
Biospecimen retention
Samples without dna

Groups and cohorts

  • Non-surgical periodontal treatment NSPT

    Subgingival instrumentation with ultrasonic devices and curettes of all periodontal pockets in 2 or 4 appointments

06

What researchers measure

Primary outcomes

  1. Changes in microbiome alpha diversity measured from stool samples at 3 months

    Taxonomic and functional variation of gut bacteria after treatment

    Time frame: Baseline and 90 days

Secondary outcomes

  1. 2. Changes in microbiome alpha diversity measured from saliva samples at 3 months

    Taxonomic and functional variation of salivary bacteria after treatment

    Time frame: Baseline and 90 days

  2. Changes in mean clinical attachment level (CAL) at 3 months

    Variation in CAL after therapy assessed using a millimetre marked manual periodontal probe at 6 sites per tooth element

    Time frame: Baseline and 90 days

  3. Changes in periodontal pocket depth (PPD) at 3 months

    Variation in PPD after therapy assessed using a millimetre marked manual periodontal probe at 6 sites per tooth element

    Time frame: Baseline and 90 days

  4. Changes in full mouth bleeding score (FMBS) at 3 months

    Variation in the percentage of bleeding sites after therapy assessed by gentle probing at 6 sites per tooth element

    Time frame: Baseline and 90 days

  5. Changes in plasma inflammatory and immunological biomarkers

    Changes in plasmatic levels of cytokines and other inflammatory biomarkers (IL-1, TNF-a, IL-6, CPR)

    Time frame: Baseline and 90 days

07

Study locations

1 of 1 sites recruiting
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Updates

1 registry update since Sep 25, 2026
Registered
First appeared on the registry. No changes since
Oct 30, 2026
Show all 1 update
  1. Oct 30, 2026
    First appeared on the registry

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT07905859
Responsible party
Sponsor
First posted
Oct 30, 2026
Start date
Mar 3, 2026
Primary completion
Sep 30, 2027 (estimated)
Completion
Dec 23, 2027 (estimated)
Last update
Oct 30, 2026

Study contacts

Mario Aimetti MA Prof.
Contact
mario.aimetti@unito.it
+39 0116331541

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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