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Comparison of Effectiveness of Gingival Displacement Using Retraction Cord and Aluminum Chloride Gel

Comparison of Effectiveness of Gingival Displacement Using Retraction Cord and Aluminum Chloride Gel

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07255976
Enrollment
66
Registered
2025-12-01
Start date
2024-09-11
Completion date
2025-12-30
Last updated
2025-12-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Gingival Bleeding, Prosthesis Failure, Dental, Tissue Injury

Brief summary

This study aims to compare the horizontal gingival displacement by using a retraction cord and aluminum chloride gel, and also to determine the time taken for placement and hemorrhage after the procedure by using a retraction cord and aluminum chloride gel. Patients of both genders, age ranges from 18 to 50 years, will be selecting requiring fixed prosthesis with of minimum two abutments. This study divided in two parallel groups of 33 patients in each group.

Detailed description

To compare the effectiveness of a knitted retraction cord and 25% aluminum chloride-containing gel for horizontal gingival displacement, time taken for placement, patient discomfort and bleeding control after retraction cord removal and gel application with improved quality and better marginal fit of fixed prosthesis. This study include patients from range 18 to 50 years, Finishing line margins will be equigingival,Clinically and by radiographic analysis, healthy gingiva and periodontium around the abutments. Bleeding on probing index score-0 included,plaque index score(1-3) not included. exclusion criteria is Sub-gingival or supra-gingival margins Patient having inappropriate root canal treated tooth. i.e Periapical pathosis over obturation, short root canal,Patient with probing depth 3mmm and above with uncontrolled bleeding. Patient with uncontrolled diabetes, hypertension or neurological disease. SAMPLE TECHNIQUE: Non- probability consecutive sampling technique. Two groups will be formed among 66 patients with control group is retraction cord group and make two impressions after crown preparation with a finishing line Equiogingival margins will form than in group A in this study apply knitted retraction cord ultra Pak in thickness of .oo mm through retraction cord instrument by cord pecker retraction gel by company provided disposable tips with syringe into the circumferential area of sulcular preparation for 2 minutes and group B using gingival retraction gel containing 25% aluminum chloride viscous tat by ultra-dent after application of gingival retraction gel into sulcular area for 1-3minutes and wash with firm air water spray and will make impressions by one-step technique putty with the light body in metal stock trays then remove and check the impression for any inaccuracy then disinfect the impressions and pores with type 2 hard plaster and mention the code over cast that will not mix. The time required for placement of both gingival retraction systems will be recorded by using stopwatch in seconds and haemorrhage control will be checked by clinically observed with the naked eyes after air water spray up to 3 -5 seconds comparison of horizontal displacement on cast will be analyzed by stereomicroscope images using image analysis software at Dow dental lab.

Interventions

DEVICEknitted cotton retraction cord

00 size knitted cotton gingival displacement cord used as a control

DEVICEaluminum chloride gel

25% Aluminum chloride gel used as an experimental intervention

Sponsors

Dow University of Health Sciences
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

In Group A, a knitted retraction cord (Ultra Pak, 0.00 mm) will be placed with a cord packer, and retraction gel applied using disposable syringe tips for 2 minutes. In Group B, gingival retraction gel with 25 % aluminum chloride (Ultradent) will be applied in the sulcus for 1-3 minutes, then rinsed with air-water spray. Impressions will be made by a one-step putty-light-body technique in metal trays, checked, disinfected, and poured with type II plaster. Casts will be coded separately. Time for placement of each system will be recorded with a stopwatch, haemorrhage control observed visually, and horizontal displacement measured by stereomicroscope and image analysis software at Dow Dental Lab.

Eligibility

Sex/Gender
ALL
Age
18 Years to 50 Years
Healthy volunteers
Yes

Inclusion criteria

1. age ranges from 18 to 50 years a fixed prosthesis with minimum of two abutments. 2. minimum of two abutments 3. Finishing line margins will be Equiogingival 4. Clinically healthy gingiva and periodontium.

Exclusion criteria

* 1\. Sub-gingival or supra-gingival margins 2 Periapical pathosis 3. inadequate obturated root canals 4. bleeidng disorder 5.uncontrolled diabetes, 6.hypertension 7.neurological disease

Design outcomes

Primary

MeasureTime frameDescription
horizontal gingival displacementone time intervention , measure at baselineHorizontal displacement will be analyzed on casts using stereomicroscope imaging and image analysis software at Dow Dental Lab. and measurment in micron meter unit.

Secondary

MeasureTime frameDescription
placement timeone time intervention , measure at baselinetime for placement will be recorded with a stopwatch.
bleeding controlone time intervention , measure at baselinebleeding control will be visual assist by after applying air-water spray.

Countries

Pakistan

Contacts

Primary ContactArmeen Fakhur, bds
armeenfakhur.401050@duhs.edu.pk03439269593

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 23, 2026