NCT06179277

Brief Summary

The goal of this randomized, controlled, single-center study is to compare the effects of Emdogain®, a regenerative biomaterial, on post-operative pain, wound healing and inflammation of treated sites after surgical crown lengthening. The main question it aims to answer is: Does the use of Emdogain® in conjunction with crown lengthening surgery improve post-operative soft-tissue healing, decrease inflammation and reduce patient perception of pain compared to crown lengthening without addition of Emdogain®? The treatment group will receive Emdogain® during surgery, and the control group will undergo standard crown lengthening without Emdogain®.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
22

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Apr 2019

Typical duration 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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 8, 2019

Completed
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 9, 2020

Completed
11 months until next milestone

Study Completion

Last participant's last visit for all outcomes

October 11, 2021

Completed
2.2 years until next milestone

First Submitted

Initial submission to the registry

December 11, 2023

Completed
10 days until next milestone

First Posted

Study publicly available on registry

December 21, 2023

Completed
Last Updated

December 21, 2023

Status Verified

December 1, 2023

Enrollment Period

1.6 years

First QC Date

December 11, 2023

Last Update Submit

December 11, 2023

Conditions

Outcome Measures

Primary Outcomes (4)

  • Clinician-reported degree of inflammation

    Presence and degree of inflammation (appearance of erythema/edema) using VAS score

    One, two, four and eight-week follow-ups

  • Clinician-reported quality of healing

    Overall healing using VAS score

    One, two, four and eight-week follow-ups

  • Patient-reported perception of pain

    Pain score using VAS

    One, two, four and eight-week follow-ups

  • Patient-reported swelling

    Swelling score using VAS

    One, two, four and eight-week follow-ups

Secondary Outcomes (1)

  • Number of analgesics

    One, two, four and eight-week follow-ups

Study Arms (2)

Treatment/experimental group

EXPERIMENTAL

Patients undergoing surgical crown lengthening of a single site with application of PrefGel® + Emdogain®

Device: PrefGel® + Emdogain®

Control group

PLACEBO COMPARATOR

Patients undergoing surgical crown lengthening of a single site with application of PrefGel® only

Device: PrefGel®

Interventions

Surgical crown lengthening procedure with root conditioning with 24% EDTA (PrefGel®) and application of 0.3 mL Emdogain® to root surface with 27-gauge needle

Treatment/experimental group
PrefGel®DEVICE

Surgical crown lengthening procedure with root conditioning with 24% EDTA (PrefGel®)

Control group

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients who:
  • Were capable and willing to provide consent and complete treatment as well as follow-up appointments
  • Were over the age of 18 years old
  • Required surgical crown lengthening for functional reasons as outlined in background
  • Had no contraindications to surgery (these include periodontal contraindications to crown lengthening such as poor crown-to-root ratio, furcation exposure or esthetic concerns)

You may not qualify if:

  • Patients who were unable to provide informed consent
  • Pregnant women
  • Women receiving estrogen therapy
  • Patients who had received systemic antibiotics within the past 6 months
  • Patients with severe systemic disease (ASA 3+) including: poorly controlled diabetes, blood dyscrasias, liver disease, immunosuppressive disorders, malignancy or who have had previous radiotherapy
  • Patients with untreated, active periodontal disease

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Toronto, Faculty of Dentistry

Toronto, Ontario, M5G 1G6, Canada

Location

Study Officials

  • Howard Tenenbaum, Dr

    University of Toronto

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Masking Details
All participants remained blinded with respect to their group assignment for the duration of the study. Allocation concealment was done by placing randomization codes with group assignment in opaque sealed envelopes that were opened by the operator at the end of the surgical procedure, right before suturing, which means the surgeon was blinded throughout most of the treatment. Data was collected by a separate examiner who was also blinded to treatment allocation. Data analysis was carried out by an external statistician, minimizing the risk of bias.
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

December 11, 2023

First Posted

December 21, 2023

Study Start

April 8, 2019

Primary Completion

November 9, 2020

Study Completion

October 11, 2021

Last Updated

December 21, 2023

Record last verified: 2023-12

Data Sharing

IPD Sharing
Will not share

Locations