NCT03631693

Brief Summary

This is a single centre, randomised, single-blind, parallel-group clinical trial that aims at evaluating the use of imaging (2D and 3D) in obtaining geometric and thermometric changes of postoperative healing patterns and comorbidities (facial swelling, oedema and inflammation) following two routine surgical procedures performed for the treatment of periodontal (gum) disease.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Feb 2018

Longer than P75 for not_applicable

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

February 21, 2018

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

June 7, 2018

Completed
2 months until next milestone

First Posted

Study publicly available on registry

August 15, 2018

Completed
7.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2025

Completed
Last Updated

February 19, 2026

Status Verified

February 1, 2026

Enrollment Period

7.9 years

First QC Date

June 7, 2018

Last Update Submit

February 17, 2026

Conditions

Keywords

postoperative healing

Outcome Measures

Primary Outcomes (2)

  • Geometrical (3D) imaging in post-periodontal surgery wound healing.

    Subtracted images from the baseline will identify the area and magnitude of the swelling (changes in volume) in the area of surgery (extra and intra orally).

    Period from pre-surgery to 90 days post-surgery

  • Thermal (2D) imaging in post-periodontal surgery wound healing.

    Subtracted thermography images from the baseline will identify the change of the tissue temperature in the area of surgery (extra and intra orally).

    Period from pre-surgery to 90 days post-surgery

Secondary Outcomes (1)

  • Patient related outcome measures (PROMs) particularly on oral health related quality of life

    Period from pre-surgery to 90 days post-surgery

Study Arms (2)

Simplified papilla preservation flap

ACTIVE COMPARATOR

PERIODONTAL SURGICAL INTERVENTION:The first arm is the simplified papilla preservation flap (SPPF) surgery.At visit 3, the SPPF surgery is performed. 2D and 3D imaging on surgical site will be carried out pre and post surgery. 2D and 3D imaging performed on surgical site for all post operative visits.

Procedure: Simplified papilla preservation flap

Resective flap with osseous recontouring

ACTIVE COMPARATOR

PERIODONTAL SURGICAL INTERVENTION: The second arm is the Resective periodontal flap with osseous recontouring (RPFO). At visit 3, the RPFO surgery is performed. 2D and 3D imaging on surgical site will be carried out pre and post surgery. 2D and 3D imaging performed on surgical site for all post operative visits.

Procedure: Resective periodontal flap with osseous recontouring

Interventions

The simplified papilla preservation flap (SPPF) surgery is a conservative surgical procedure aimed at the preservation of the tissues between the teeth providing access for the debridement of the root surface in sites with residual pockets.

Also known as: SPPF
Simplified papilla preservation flap

The Resective periodontal flap with osseous recontouring (RPFO) is a surgical procedure that achieves predictable pocket depth reduction by soft and hard tissue resection to obtain a more convenient soft and hard tissue architecture for oral hygiene.

Also known as: RPFO
Resective flap with osseous recontouring

Eligibility Criteria

Age30 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Systemically healthy males and females ≥ 30 years of age.
  • Participants must be willing to read, and sign a copy of the "Informed Consent Form" (ICF) form after reading the, "Patient Information Leaflet" (PIS), and after the nature of the study has been fully explained.
  • Participants must present with clinical and radiographic evidence of periodontitis, with one interdental area of Periodontal Pocket Depth (PPD) ≥6mm, Bleeding On Probing (BOP), and Clinical Attachment Level (CAL) ≥6mm in any posterior sextant of their mouth (excluding third molars and the distal aspect of the second molars), or multiple sites (≥9) with PPD ≥5mm, BOP, and CAL ≥5mm.
  • Participants must have completed a course of non-surgical periodontal therapy within 2 years prior to study commencement and have had maintenance including subgingival debridement within 6 months prior to assessment for eligibility.

You may not qualify if:

  • Medical history including diabetes or hepatic or renal disease, or other serious medical conditions or transmittable diseases e.g. cardiovascular disease or AIDS.
  • Antibiotic, anti-inflammatory or anticoagulant therapy during the month preceding the baseline exam.
  • History of alcohol or drug abuse.
  • Self-reported pregnancy or lactation.
  • Other severe acute or chronic medical or psychiatric condition or laboratory abnormality that may increase the risk associated with trial participation or investigational product administration that may interfere with the interpretation of the data.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Queen Mary University London

London, E1 2AD, United Kingdom

Location

MeSH Terms

Conditions

Periodontitis

Condition Hierarchy (Ancestors)

Periodontal DiseasesMouth DiseasesStomatognathic Diseases

Study Officials

  • Nikos Donos, Prof.

    Institute of Dentistry, QMUL

    STUDY DIRECTOR
  • Nikos Donos, Prof.

    Institute of Dentistry, QMUL

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
The calibrated examiners will be blinded to the study treatment. Samples will be labelled anonymously with subject ID and without codes relating to treatment group; therefore, all sample analyses will be blinded. Blinding of the statistician will also take place. Data will be coded during data entry according to treatment group with a number disallowing group identification during analyses. Code details of which each treatment group will be revealed only once analyses are complete.
Purpose
OTHER
Intervention Model
PARALLEL
Model Details: Single centre, randomised, single-blind, parallel-group clinical trial.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 7, 2018

First Posted

August 15, 2018

Study Start

February 21, 2018

Primary Completion

December 31, 2025

Study Completion

December 31, 2025

Last Updated

February 19, 2026

Record last verified: 2026-02

Data Sharing

IPD Sharing
Will not share

Locations