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Gingival HemorrhageretractionNCT03892109

Evaluation of Different Gingival Retraction Systems on Gingival Displacement and Periodontal Health

A study testing No Cord impression material, cord and Gingitrac in people with Gingival Hemorrhage, run by Cairo University at 1 site in Egypt.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

The interrelationship of restorative dentistry and periodontics is a dynamic one. The interactions between restorative dentistry and periodontal health have been well-documented both clinically and histologically. Read more about this study

Who is it for?
Ages 18 to 60 years
Conditions the study is for
Gingival Hemorrhage
What is being tested?
No Cord impression material, cord and Gingitrac
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
40 participants
Where
1 siteEgypt
Study dates
1 Feb 2019to 30 May 2020
Phase
Interventional
Are there results?
None posted in the registry

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 to 60 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • forty patients whose ages more than 18 years were selected requiring fixed prosthesis with minimum of two abutments.
  • Clinically and radiographically healthy gingiva and periodontium around the abutments.
  • Abutment teeth of normal size and contour (no developmental anomaly or regressive age changes).

Who cannot join

  • Age <18 years.
  • Gingival and periodontal disease.
  • Uncontrolled diabetes, hypertension, hyperthyroidism and other cardiovascular disorders.

Trial locations and contacts

1 site in 1 country.

asma m serag, lecturer contact

01006513595

sou_201085@yahoo.com

Egypt1 site, 1 recruiting
  • Cairo University

    Cairo, 002

    Recruiting

Other trials in Egypt

About this study

Official title: Clinical Comparative Evaluation of Different Retraction Systems in Gingival Displacement and Their Influence on Periodontal Health

The interrelationship of restorative dentistry and periodontics is a dynamic one. The interactions between restorative dentistry and periodontal health have been well-documented both clinically and histologically.

The interplay between periodontics and restorative dentistry is present at many fronts, including location of restorative margins, alloy sensitivity, crown contours, and response of the gingival tissues to restorative preparations.

Read more

Periodontal tissues form the foundation for proper esthetics, function, and comfort of the dentition, as well as the periodontal health at the restorative gingival interface consider as prerequisite for successful outcome.

Success of fixed prosthodontics restorations is largely dependent upon the long term health and stability of the surrounding periodontal structures.

The purpose of the present study was to evaluate the clinical efficacy of 4 new gingival retraction systems; traxodent, Gingitrac, Nocord, and cord , on the basis of the time taken for placement, hemorrhage control ,the amount of horizontal gingival displacement and periodontal parameter (PI, GI, CAL and PD).

Read the detailed description

The interplay between periodontics and restorative dentistry is present at many fronts, including location of restorative margins, alloy sensitivity, crown contours, and response of the gingival tissues to restorative preparations.

And from fixed prothodontic point of view there are several factors affect the success and durability of restorations. In general, the type of impression making, setting accuracy, material flow, temperature, humidity, mixing, disinfection and pouring time have effects on the final accuracy of the indirect restorations. Supra-gingival margins are effective in periodontal health maintenance, but do not provide optimal aesthetics.

The primary factor in defective record of marginal details is due to the inefficacy of the gingival displacement technique.

Traditionally, procedures for soft-tissue management and isolation are classified into three main approaches: Mechanical, chemical or surgical.

material and method:-

40 subjects were selected requiring fixed prosthesis according to inclusion and exclusion criteria.

The 4 gingival retraction systems were used on the prepared abutments randomly. The time taken for placement of each retraction system was recorded.

Hemorrhage score will be recoreded. The horizontal retraction was measured on polyether impressions made before the retraction and after retraction using stereoscope.

The periodontal parameter (PI, GI, CAL and PD) will be recorded pre-operative, 1 day post-operative and 7 days post-operative.

Being tested
No Cord impression material, cord, Gingitrac
Medical subject headings
Gingival Hemorrhage

What participants receive

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

  • No Cord impression materialOther

    the no cord self- retracting impression material placed directly in the tray

  • cordDevice

    Cords were placed in the gingival sulcus with use of a cord packer, and left in situ for 10 min before making the impression. None of the retraction cords were immersed in any solution or medicaments prior to insertion.

  • GingitracOther

    packed into the sulcus

Study groups in NCT03892109
Study groupRoleWhat they receive
GingitracActive comparatorThe gingitrac cartridge was attached to the automixing gun and then the mixing syringe with intraoral tip was placed into the gingival sulcus and gingival retraction material was applied all around the selected abutment. After injecting the retraction material ,the corresponding comprecap was placed on to the abutment to push the material deep into the gingival sulcus. After 4 min, the comprecap with the set retraction material attached to it was removed from the patient mouth.
Receives: Other: No Cord impression material; Device: cord; Other: Gingitrac
traxodentActive comparatorThe traxodent cartridge was attached to the automixing gun and then the mixing syringe with intraoral tip was placed into the gingival sulcus and gingival retraction material was applied all around the tooth. After injecting the retraction material ,the corresponding comprecap was placed on to the abutment to push the material deep into the gingival sulcus. After 4 min, the comprecap with the set retraction material attached to it was removed from the patient mouth.
Receives: Other: No Cord impression material; Device: cord; Other: Gingitrac
Ultrapk cordExperimentalthe cord packed into the gingival sulcus around the tooth
Receives: Other: No Cord impression material; Device: cord; Other: Gingitrac
nocordPlacebo comparatorused directly in the tray
Receives: Other: No Cord impression material; Device: cord; Other: Gingitrac

What is being measured

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

  1. Time of placement

    time taken for placement of each retraction system was recorded during application

    Measured: the time recorded in seconds (from 1 second to 2 minutes)

  2. Hemorrhage score

    the amount of bleedingbleeding on probing scoring as 0, 1, and 2 (0 - no bleeding, 1 - bleeding controlled within 1 minute, bleeding, 2 - bleeding not controlled within 1 minute)

    Measured: from base line to 1 day

Secondary outcomes (4)
  1. Horizontal gingival displacement

    The horizontal displacement was measured on polyether impressions made before the retraction and after retraction using steroscope.

    Measured: from baseline to 24 hours

  2. Gingival index

    according to gingival index, scored as 0,1,2 and 3( 0 = no inflamation and no gingival bleeding, 1= mild redness of the gingiva, no bleeding, 2=moderate inflammation and redness of the gingiva, edema and bleeding,3= marked redness, edema, ulceration and severe bleeding).

    Measured: at baseline ,after 1 day and after seven days

  3. Pocket depth

    according to pocket depth The probe was held with a light grasp and pointed towards the apex buccally while being parallel to the long axis of the tooth. Each measurement was rounded to the lowest whole millimetre.

    according to pocket depth The probe was held with a light grasp and pointed towards the apex buccally while being parallel to the long axis of the tooth. Each measurement was rounded to the lowest whole millimetre.

    Measured: at baseline, after 1 day and after seven days

  4. Plaque index

    according to the plaque index, plaque index scoring as 0, 1, 2, and 3 (0 - no plaque and 1 - a film of plaque adhering to the free gingival margin and adjacent area of the tooth. The plaque may be seen in situ only after application of disclosing solution or using the probe on the tooth surface, 2 - moderate accumulation of soft deposits within the gingival pocket or the tooth and gingival margin which can be seen with the naked eye, and 3 - abundance of soft matter within the gingival pocket and/or on the tooth and gingival margin).

    Measured: at baseline, after 1 day and after seven days

Timeline

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

  1. First posted27 Mar 2019
  2. Study start1 Feb 2019
  3. Primary completion1 Feb 2020 (estimated)
  4. Study completion30 May 2020 (estimated)

Resources

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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
Randomized
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
40 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03892109
Sponsor's protocol ID
2000019
Acronym
retraction
Status last verified
Dec 2019
First submitted
20 Mar 2019
Last updated
2 Jan 2020
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

A study testing No Cord impression material, cord and Gingitrac in people with Gingival Hemorrhage, run by Cairo University at 1 site in Egypt.

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 3 inclusion and 3 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: status not confirmed, as of the sponsor's last update on 2 Jan 2020. 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 Egypt. 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. Some participants in this study may receive a placebo. 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?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact asma m serag, lecturer (01006513595, sou_201085@yahoo.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Time of placement (time frame: the time recorded in seconds (from 1 second to 2 minutes)). The study lists 2 primary outcomes in all. 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 2 Jan 2020.

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