Clinical Trial of Two Techniques for Gingival Displacement

Phase 1

Completed

• Conditions: Poor Aesthetic of Existing Restoration of Tooth
• Interventions: Procedure: Gingival displacement

• Registration Number: NCT01848496
• Lead Sponsor: Maximiliano Sergio Cenci

Brief Summary

Regardless of the selected technique for dental impression, gingival displacement is an essential procedure specially when making impressions of subgingival finishing lines, because a moisture-free sulcus is a requirement for an effective impression.

The objective of this randomized clinical study is to evaluate the efficacy of the conventional and cordless gingival displacement (GD) techniques.

Detailed Description

On conventional technique we normally use a cord for gingival displacement. On the other hand, on cordless technique do not require this need.

Study Timeline

• Study Start: 2012-01
• Primary Completion: 2012-12
• Study Completion: 2013-03
• Study First Submitted: 2013-04-25
• Status Verified: 2013-05
• Study First Submitted QC: 2013-05-03
• Last Update Submitted: 2013-05-03
• Study First Posted: 2013-05-07
• Last Update Posted: 2013-05-07

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 22

Inclusion Criteria

• good general and dental health
• at least two anterior teeth with an indication of prosthetic dental crown

Exclusion Criteria

• smoking habits
• systemic diseases
• pregnant
• had not consumed antibiotics or anti-inflammatory drugs in the last 60 days
• the selected teeth must have good periodontal health characterized by regular gingival margin with at least 2 mm of attached gingiva, non-fibrotic gingival tissue, no marginal recession, probing depth ≤ 3 mm, no evidence of significant loss of bone insertion and present no visible plaque and gingival bleeding

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
Cordless technique	Gingival displacement	This technique does not employ a gingival cord to obtain gingival displacement.
Conventional technique	Gingival displacement	This technique employ a gingival cord to obtain gingival displacement.

Primary Outcome Measures

Name	Time	Method
Interleukins concentration on gingival crevicular fluid	Before and 1 day after gilgival displacement

Secondary Outcome Measures

Name	Time	Method
Periodontal indices	Before, 1 day after and 10 day after gingival displacement	Periodontal indices (attachment level, gingival bleeding and plaque index) were evaluated before and after gingival displacement by the both techniques.

Trial Locations

Locations (1)

Pelotas Dental School; 🇧🇷 Pelotas, Rio Grande do Sul, Brazil