Peri-implant HealthMETPLA-PPNCT07304752

Effect of Probe Material on Peri-implant Probing

A study testing Metallic UNC-15 periodontal probe and Plastic UNC-15 periodontal probe in people with Peri-implant Health and Peri-implant Mucositis, run by University of Barcelona at 1 site in Spain.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts

Official record

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Trial summary

Who is it for?: Ages 18 years and older
Conditions the study is for: Peri-implant Health, Peri-implant Mucositis
What is being tested?: Metallic UNC-15 periodontal probe and Plastic UNC-15 periodontal probe
Type of treatment: Medical device
Could I receive a placebo?: No, everyone receives an active treatment
How many people: 64 participants
Where: 1 siteSpain
Study dates: 1 Jan 2026to Oct 2026
Phase: Interventional

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

Ages 18 years and older
All sexes
No healthy volunteers
Adult, Older adult

Who may be able to join

Adults (≥18 years)
Presence of at least one single-unit bone-level implant rehabilitated with a screw-retained prosthesis directly connected to the implant (no intermediate abutment)
Implant in function for at least 1 year after prosthetic loading
No pathological bone loss on periapical radiograph (distance from the most coronal rough surface of the implant to the bone crest < 3 mm)
Ability to understand and sign informed consent
Peri-implant health or mucositis, defined according to the 2017 World Workshop criteria:
Health: no clinical signs of inflammation, lack of profuse (line or drop) bleeding on probing, no increase in probing depth compared to previous records, and no progressive bone loss beyond initial remodeling (<2 mm). In the absence of previous radiographs, radiographic bone level <3 mm without bleeding and/or suppuration on probing.
Mucositis: presence of bleeding and/or suppuration on probing, no increase in probing depth compared to previous records, and no bone loss beyond initial remodeling (<2 mm). In the absence of previous radiographs, radiographic bone level <3 mm with bleeding and/or suppuration on probing.

Who cannot join

Cement-retained restorations or prostheses that cannot be removed
Systemic antibiotic or anti-inflammatory treatment within the previous 3 months
Pregnancy or lactation
Peri-implant treatment within the previous 3 months
Participation in another clinical trial within the last 30 days

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Octavi Camps Font, DDS MS PhD contact

+34 934 024 269

ocamps@ub.edu

Spain1 site, 1 recruiting

Hospital Odontològic Universitat de Barcelona
L'Hospitalet de Llobregat, Barcelona, 08907
Octavi Camps, +34 934 024 269, ocamps@ub.edu
Recruiting

Other trials in Spain

About this study

Official title: Effect of Probe Material (Metallic vs. Plastic) on Peri-implant Probing: a Randomized Clinical Trial.

Evaluate whether the type of probe (plastic vs. metallic) modifies the accuracy of peri-implant probing in single-unit implants, by comparing the probing depth recorded with the prosthesis in place versus without the prosthesis (ΔPD, mm). Secondarily, explore the influence of prosthetic design and implant position on probing values and on other clinical and radiographic parameters.

Read the detailed description

Randomized clinical trial with two parallel groups. Eligible patients will be randomized (1:1 ratio) to one of two parallel treatment groups:

Group 1 (Metal probe): Peri-implant probing performed with a UNC-15 metallic periodontal probe (HuFriedy PCPUNC156).

Group 2 (Plastic probe): Peri-implant probing performed with a UNC-15 plastic periodontal probe (HuFriedy PCVO12PT).

Primary objective:

To evaluate whether the type of probe (plastic vs metallic) modifies the accuracy of peri-implant probing in single-unit implants, by comparing the probing depth recorded with the prosthesis in place versus without the prosthesis (ΔPS, mm).

Secondary objectives:

To explore the influence of prosthetic design (e.g., emergence profile, crown contour) and implant position on probing depth values and other clinical/radiographic parameters.

To evaluate patient-reported discomfort during peri-implant probing, recorded using a 100-mm visual analogue scale (VAS).

The study was designed in accordance with the international consensus on Implant Dentistry Core Outcome Set and Measurement (ID-COSM), published in the Journal of Clinical Periodontology in 2023. The protocol includes all applicable mandatory outcome domains recommended by this consensus for implant dentistry clinical trials.

Conditions: Peri-implant Health, Peri-implant Mucositis
Being tested: Metallic UNC-15 periodontal probe, Plastic UNC-15 periodontal probe
Keywords: Visual Analogue Scale, Peri-implant probing, Probing depth, Emergency profile, Dental implant

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Metallic UNC-15 periodontal probeDevice
Probing performed at six sites per implant with the prosthesis in place and after prosthesis removal, under standardized force (0.20 N).
Plastic UNC-15 periodontal probeDevice
Probing performed at six sites per implant with the prosthesis in place and after prosthesis removal, under standardized force (0.20 N).

Study groups in NCT07304752
Study group	Role	What they receive
Metallic probe	Active comparator	Metallic UNC-15 periodontal probe (HuFriedy PCPUNC156) Receives: Device: Metallic UNC-15 periodontal probe
Plastic probe	Experimental	Plastic UNC-15 periodontal probe (HuFriedy PCVO12PT) Receives: Device: Plastic UNC-15 periodontal probe

What is being measured

The primary outcome is the main question the study is designed to answer.

Difference in probing depth with vs. without prosthesis (ΔPS, mm)
Difference in peri-implant probing depth (ΔPS) between plastic and metallic probes, measured by a single calibrated examiner at six sites per implant using a standardized probing force (20-25 g).
Unit of Measure: millimeters (mm) This primary outcome was defined following the mandatory outcome domains recommended by the international consensus on Implant Dentistry Core Outcome Set and Measurement (ID-COSM), published in the Journal of Clinical Periodontology in 2023.
Measured: Baseline (single clinical visit)

Secondary outcomes (1)

Patient Discomfort During Probing (VAS, 0-100 mm)
Pain/discomfort reported by the patient immediately after peri-implant probing. Unit of Measure: millimeters (0-100 mm VAS) , where 0 is the minimum pain value and 100 is the maximum pain value.
Measured: Immediately after probing, at the study visit

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

1 Jan 2026Oct 2026

First posted26 Dec 2025
Study start1 Jan 2026
Primary completionOct 2026 (estimated)
Study completionOct 2026 (estimated)

Resources

Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
Other trials for Peri-implant HealthStudies of the same condition, open and under way.
What the trial phases meanHow a treatment moves from first tests in people to approval.

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design

Study type: Interventional
Phase: Phase N/A
Primary purpose: Diagnosis
Allocation: Randomised
Intervention model: Parallel groups
Model description: All clinical measurements will be performed by a single examiner previously trained and calibrated for peri-implant probing in order to ensure consistency and minimize measurement error.
Masking: Double blind
Who is masked: Participant, Outcomes assessor
Enrolment: 64 participants (estimated)

IDs, dates and publications

ClinicalTrials.gov ID: NCT07304752
Sponsor's protocol ID: 57/2025
Acronym: METPLA-PP
Status last verified: Jun 2026
First submitted: 16 Nov 2025
Last updated: 24 Jun 2026
Results posted: No
Data monitoring committee: No
FDA-regulated drug: No
FDA-regulated device: No
Individual data sharing: No

Interested in taking part?

Octavi Camps Font, DDS MS PhD

+34 934 024 269

ocamps@ub.edu

Talk to your doctor first and take this page with you. Only the study team can confirm whether you can join.

Questions to ask the study team

What is the study trying to find out?
What would I need to do, and how often would I visit?
Could I receive a placebo instead of the treatment?
What are the possible risks and benefits for me?
Will it cost me anything? Are travel or time paid for?
Can I keep seeing my own doctor during the study?
What happens when the study ends?

See sites and contacts

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