Poor Aesthetic of Existing Restoration of Tooth Clinical Trial
Official title:
A Double-blind Randomized Clinical Trial of Two Techniques for Gingival Displacement
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.
| Status | Completed |
| Enrollment | 22 |
| Est. completion date | March 2013 |
| Est. primary completion date | December 2012 |
| Accepts healthy volunteers | Accepts Healthy Volunteers |
| Gender | Both |
| Age group | 20 Years to 60 Years |
| Eligibility |
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 |
Allocation: Randomized, Endpoint Classification: Safety Study, Intervention Model: Crossover Assignment, Masking: Double Blind (Subject, Outcomes Assessor), Primary Purpose: Treatment
| Country | Name | City | State |
|---|---|---|---|
| Brazil | Pelotas Dental School | Pelotas | Rio Grande do Sul |
| Lead Sponsor | Collaborator |
|---|---|
| Maximiliano Sergio Cenci |
Brazil,
Ainamo J, Bay I. Problems and proposals for recording gingivitis and plaque. Int Dent J. 1975 Dec;25(4):229-35. — View Citation
Al Hamad KQ, Azar WZ, Alwaeli HA, Said KN. A clinical study on the effects of cordless and conventional retraction techniques on the gingival and periodontal health. J Clin Periodontol. 2008 Dec;35(12):1053-8. doi: 10.1111/j.1600-051X.2008.01335.x. — View Citation
Passariello C, Puttini M, Virga A, Gigola P. Microbiological and host factors are involved in promoting the periodontal failure of metaloceramic crowns. Clin Oral Investig. 2012 Jun;16(3):987-95. doi: 10.1007/s00784-011-0585-0. Epub 2011 Jul 1. — View Citation
| Type | Measure | Description | Time frame | Safety issue |
|---|---|---|---|---|
| Other | Self-reported unpleasant flavour and pain | Also were evaluated subjective parameters (unpleasant flavor and pain) self-reported by the volunteers during gingival displacement. These subjective outcomes were collected using the visual analogic scale. | Immediatelly after interventions | Yes |
| Primary | Interleukins concentration on gingival crevicular fluid | Before and 1 day after gilgival displacement | Yes | |
| Secondary | Periodontal indices | Periodontal indices (attachment level, gingival bleeding and plaque index) were evaluated before and after gingival displacement by the both techniques. | Before, 1 day after and 10 day after gingival displacement | Yes |