Gingival Displacement by Polytetrafluoroethylene & Conventional Retraction Cord

Study Overview
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Brief Summary
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To achieve harmony between restoration and surrounding periodontium, soft tissue management plays a pivotal role. Various Gingival displacement techniques show varying results in achieving the goals of displacement. The most preferred method of displacement by dental practitioners is through conventional retraction cord made up of cotton, which besides its advantages, poses certain drawbacks, including low tear strength, high friction, and fiber remnants within the sulcus. Polytetrafluoroethylene (PTFE) retraction cord, is a fluoropolymer, known for its high tear strength, low friction, and bio-compatibility. This study aims to determine the difference of horizontal gingival displacement between PTFE and conventional retraction cord. Participants inducted in this study will be assessed for eligibility. qualifying subjects will receive crown preparation for Porcelain-fused to-metal crown. subjects will then be randomly allocated to either of the two arms of intervention. After making a pre-displacement impression, Retraction cord will be applied for 3 minutes, then removed to record post-displacement impression. the difference in pre and post-displacement mean gingival sulcus width will be assessed by a stereomicroscope using image analysis software.

Official Title
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Comparative Evaluation of Gingival Displacement by Polytetrafluoroethylene (PTFE) & Conventional Retraction Cord- A Randomized Control Trial

Conditions
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Gingival Pocket

Intervention / Treatment
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* Device: PTFE Retraction Cord


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Indication of full veneer crown Age group: 18-60 years Probing Depth 2-3mm and no bleeding on probing No signs of gingival/periodontal disease Exclusion Criteria: Indication of subgingival margin location Developmental anomaly (anatomical) affecting abutment tooth Bleeding disorder Pregnancy

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 60 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Other
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Conventional Retraction Cord<br> | Device: PTFE Retraction Cord<br>* Polytetrafluoroethylene (PTFE) Retraction cord will be gently applied in gingival sulcus with minimal pressure. The intervention will be applied for three minutes in gingival sulcus, followed by a two stage addition silicone impression.<br>|
| Experimental: PTFE Retraction Cord<br> | Device: PTFE Retraction Cord<br>* Polytetrafluoroethylene (PTFE) Retraction cord will be gently applied in gingival sulcus with minimal pressure. The intervention will be applied for three minutes in gingival sulcus, followed by a two stage addition silicone impression.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Difference between Mean Horizontal Gingival Displacement by PTFE retraction cord and Conventional retraction cord among sixty participants as assessed by Stereomicroscope. |  | 3 minutes after displacement | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Difference between Post-displacement Bleeding by PTFE and conventional retraction cord among sixty participants by visual assessment |  | immediately after cord removal | 
| Difference between ease of Application of PTFE and conventional retraction cord among sixty participants. |  | immediately after cord removal | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Polytetrafluoroethylene, Retraction, Soft tissue Management, Retraction cord