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.
Trial summary
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). Read more about this study
- 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
- Are there results?
- Not yet: the study is under way
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.
Spain1 site, 1 recruiting
- Recruiting
Hospital Odontològic Universitat de Barcelona
L'Hospitalet de Llobregat, Barcelona, 08907
Octavi Camps, +34 934 024 269, ocamps@ub.edu
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 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.
- 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)
Sponsor and investigators
- Lead sponsor
- University of Barcelona
- Sponsor type
- University, hospital or other
- Collaborators
- Institut d'Investigació Biomèdica de Bellvitge
- Responsible party
- Principal investigator, Octavi Camps-Font, University of Barcelona
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
Study at a glance
From the registry record, last updated by the sponsor on 24 Jun 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effect of Probe Material (Metallic vs. Plastic) on Peri-implant Probing: a Randomized Clinical Trial.
- ClinicalTrials.gov ID
- NCT07304752
- Acronym / sponsor ID
- METPLA-PP / 57/2025
- Conditions
- Peri-implant Health, Peri-implant Mucositis
- Keywords
- Visual Analogue Scale, Peri-implant probing, Probing depth, Emergency profile, Dental implant
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 64 participants (estimated)
- Lead sponsor
- University of BarcelonaUniversity, hospital or other
- Collaborators
- Institut d'Investigació Biomèdica de Bellvitge
- Study start
- 1 Jan 2026 (actual)
- Primary completion
- Oct 2026 (estimated)
- Study completion
- Oct 2026 (estimated)
- First posted
- 26 Dec 2025 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
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.
Study design
- Primary purpose
- Diagnosis
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, outcomes assessor)
- Number of arms
- 2
- 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.
| Arm | Type | Receives |
|---|---|---|
| Metallic probe | Active comparator | Device: Metallic UNC-15 periodontal probeMetallic UNC-15 periodontal probe (HuFriedy PCPUNC156) |
| Plastic probe | Experimental | Device: Plastic UNC-15 periodontal probePlastic UNC-15 periodontal probe (HuFriedy PCVO12PT) |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (8 listed)
- 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
Key exclusion criteria (5 listed)
- 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
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Metallic UNC-15 periodontal probeProbing performed at six sites per implant with the prosthesis in place and after prosthesis removal, under standardized force (0.20 N). | Device | Metallic probe |
| Plastic UNC-15 periodontal probeProbing performed at six sites per implant with the prosthesis in place and after prosthesis removal, under standardized force (0.20 N). | Device | Plastic probe |
Primary outcome
Difference in probing depth with vs. without prosthesis (ΔPS, mm)
Time frame: Baseline (single clinical visit)
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.
1 secondary outcome
Patient Discomfort During Probing (VAS, 0-100 mm)
Time frame: Immediately after probing, at the study visit
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 24 Jun 2026.
- Hospital Odontològic Universitat de BarcelonaLink provided by the sponsor.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
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.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 8 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 24 Jun 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Spain. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Octavi Camps Font, DDS MS PhD (+34 934 024 269, ocamps@ub.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Difference in probing depth with vs. without prosthesis (ΔPS, mm) (time frame: Baseline (single clinical visit)). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Jun 2026.