ClinicalTrials.gg
RecruitingNCT06480825Updated Apr 1, 2026

Application of Ultra-high Frequency Ultrasonography (UHFUS) to the Study of Gingival Tissues

An observational study in Gingivitis and Periodontitis, sponsored by University of Pisa. Recruiting at 2 sites in Italy. Open to participants aged 18 Years to 70 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-04-01.

Sponsored by University of Pisa · Observational

From the registry’s dates

  • Started Apr 2024; still recruiting 2 years 7 months later.
Study type
Observational
Model
Case-control
Time perspective
Cross-sectional
Enrollment
40
Ages
18 Years to 70 Years
Sex
All
01

Study summary

Gingival inflammation triggered by the accumulation of bacterial is the primary risk factor for the development of periodontitis. Clinically, localized signs of inflammation limited to the gingiva, presence of significant bacterial plaque load, and stable attachment levels on the periodontium can be observed in course of gingivitis. The aim of the present study is to compare clinical aspects of gingival tissue in healthy patients versus patients with gingivitis to assess the ultrastructural variations present in course of inflammation.

Patients with gingivitis and healthy controls will be enrolled. All patients will undergo ultra-high frequency ultrasonographic scans (70 MHz) of gingival tissue on three areas per dental arch (anterior, middle right, middle left). Gingival thickness, echogenicity, and vascularization assessed through resisitive index will be evaluated.

02

Conditions studied

  • Gingivitis
  • Periodontitis
03

In context

Gingivitis

631 studies on the registry are indexed under Gingivitis; 107 are open to participants now.

This study's planned enrollment of 40 is below the median of 93 across 116 observational studies indexed under Gingivitis.

Browse Gingivitis studies →

Lead sponsor

University of Pisa is the lead sponsor of 113 studies on the registry; 28 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Consecutive patients referred to the Sub-Unit of Periodontology, Halitosis, and Periodontal Medicine of the Unit of Dentistry and Oral Surgery at the University Hospital of Pisa will be enrolled.

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

  • males or females of age > 18 years
  • presence of at least 20 teeth
  • full-mouth plaque score (FMPS) >50%
  • FMBS >30%
  • ability and willingness to give

Exclusion criteria

Exclusion Criteria:

  • pregnancy or breastfeeding
  • pharmacological treatment with antinflammatory drugs, statins, or either local or systemic antibiotics (within the previous 30 days)
  • smoking habit
  • dental or periodontal condition requiring immediate treatment
  • refusal to be enrolled in the study
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.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Observational model
Case-control
Time perspective
Cross-sectional
Enrollment
40 participants (estimated)
Patient registry
No

Groups and cohorts

  • Gingivitis group

    patients affected by gingivitis

    Other: Performance of ultrasonographic scan

  • Control group

    Periodontally healthy patients

    Other: Performance of ultrasonographic scan

Interventions

  • OtherPerformance of ultrasonographic scan

    Ultra-high frequency ultrasonographic scan of gingival tissues

06

What researchers measure

Primary outcomes

  1. Echogenicity

    Variations in echogenicity assessed through grey levels distribution between healthy patients versus gingivitis

    Time frame: measured once at enrollemnt

Secondary outcomes

  1. Vascular parameters

    Variations in vascularization assessed through grey levels distribution between healthy patients versus gingivitis

    Time frame: measured once at enrollemnt

  2. DMFT

    The Decayed-Missing-Filled Teeth (DMFT) index, categorized as Low (0-4), Moderate (5-13), and High (14+), will evaluate overall dental health.

    Time frame: measured once at enrollement

  3. PPD

    Probing Pocket Depth (PPD) will be measured using a UNC-15 periodontal probe with 0.3 N pressure, recording six sites per tooth (distobuccal, buccal, mesiobuccal, distolingual, lingual, mesiolingual), rounded to the nearest millimeter.

    Time frame: measured once at enrollement

  4. FMBS

    Full Mouth Bleeding Score (FMBS) will be determined dichotomously post-probing.

    Time frame: measured once at enrollement

  5. FMPS

    Full Mouth Plaque Score (FMPS) will assess plaque presence on each tooth surface, with scores of 1 for presence and 0 for absence across six sites per tooth.

    Time frame: measured once at enrollement

07

Study locations

2 of 2 sites recruiting
  • University of Pisa
    Pisa, Italy 56126, Italy
    Recruiting
  • Department of Surgical, Medical and Molecular Pathology and Critical Care Medicine, University Hospital of Pisa
    Pisa, Italy
    Recruiting
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 1, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06480825
Lead sponsor
University of Pisa
Responsible party
Rossana Izzetti (Principal Investigator, Researcher at the Department of Surgical, Medical and Molecular Pathology and Critical Care Medicine of the University of Pisa, University of Pisa) — Principal investigator
First posted
Jun 28, 2024
Start date
Apr 2, 2024
Primary completion
Jan 31, 2026
Completion
Jul 2028 (estimated)
Last update
Apr 1, 2026

Study contacts

Rossana Izzetti
Contact
rossana.izzetti@unipi.it
3475205619

Oversight

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

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