Comparative clinical efficacy evaluation of three gingival displacement systems

Shrivastava, Kirti Jajoo; Bhoyar, Anjali; Agarwal, Surendra Kumar; Shrivastava, Saurabh; Parlani, Swapnil; Murthy, Varsha

doi:10.4103/0976-9668.166082

Cited by 10 publications

(9 citation statements)

References 10 publications

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“…Retraction cord soaked in 15% aluminum chloride produced maximum displacement (0.74 mm), followed by expasyl paste (0.48 mm) whereas magic foam cord produced the least displacement (0.41 mm). 6 The results of our study also showed that the marginal adaptation is found in 76% for impressions made by alginate, 45% for impressions made by silicone, 100% for impressions made by polyethers.…”

Section: Discussionsupporting

confidence: 73%

The Causes of Marginal Discrepancy of Fixed Dental Prostheses: A Cross-Sectional Study

Ismail¹,

Gassara²,

Hadyaoui³

et al. 2019

Dent Open J

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Periodontal destruction observed in restored teeth is strongly caused by marginal discrepancy of the restoration, which is closely influenced by the tooth preparation, the technique of retraction and impression. Materials and Methods A hundred practitioners were selected to constitute the study's sample. A self-administered questionnaire survey was carried out. The questionnaire was filled in the practitioner's office, completed in the absence of the investigator. However, it has been completed for some clarifications by an interview. A digital form made through the Google Forms application provided free by the Google search engine. The questionnaire included two sections: The identification of the practitioner: this is general information about the practitioner. The conduct of prosthetic treatment. The causes of marginal discrepancy: This section concerns the major factors responsible for a good marginal fit. The collected data was introduced and processed by the microcomputer using the statistical software XLSTAT 2015 for Windows. A simple statistical analysis made it possible to calculate the percentage of the different variables, from their frequency. Results There is a significant correlation between marginal discrepancy and the respect of the finish line geometry (p=0.001). The technique of retraction which provided the best marginal fit was the use of expasyl paste (p=0.18). There was a significant association between marginal discrepancy and the material of impression, marginal adaptation is found in 76% for impressions made by alginate, 45% for impressions made by silicone, and 100% for impressions made by polysulphides (p=0.01). Conclusion Within limitations of this study, it can be concluded that the respect of guidelines of preparation especially the finish line and the good choice of the retraction technique and the material of impression are the major keys to have a good marginal fit.

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Section: Discussionsupporting

confidence: 73%

The Causes of Marginal Discrepancy of Fixed Dental Prostheses: A Cross-Sectional Study

Ismail¹,

Gassara²,

Hadyaoui³

et al. 2019

Dent Open J

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“…Shrivastava et al [ 9 ] conducted a study on maxillary central incisors of 20 patients requiring full coverage restoration. In the first method, mechanical retraction by magic foam cord and in the second method chemico-mechanical by expasyl paste and retraction cord impregnated with 15% aluminum chloride were used for gingival displacement.…”

Section: Discussionmentioning

confidence: 99%

Assessment of aluminum chloride retraction cords, expasyl, and tetrahydrozoline-soaked retraction systems in gingival retraction

et al. 2020

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A BSTRACT Aim: The aim of this study was to assess different gingival displacement systems such as aluminum chloride retraction cords, expasyl, and tetrahydrozoline-soaked retraction cord to record intracrevicular margins of tooth preparations. Materials and Methods: This study included 60 patients. Patients were divided into four groups of 15 each. In group I, aluminum chloride retraction cords, in group II expasyl, in group III tetrahydrozoline-soaked retraction cord, and in group IV no retraction cord were used. Results: The mean gingival displacement (μm) in group I was 825.6, in group II was 482.1, in group III was 742.3, and in group IV was 214.8. Significant difference was seen in between groups by one-way analysis of variance as P < 0.05. Post hoc Tukey analysis showed significant difference during multiple comparison between groups. Conclusion: Authors found that maximum gingival retraction was achieved with aluminum chloride retraction cords followed by tetrahydrozoline and expasyl.

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“…Next to the cord technique, there is a variety of different cordless systems for gingival displacement, such as pastes, foams and gels [2]. The comparison of the currently well-known cordless techniques to the conventional cord technique generally showed superior gingival displacement performance for the cord technique under healthy gingival conditions [3][4][5][6][7][8]. However, it is necessary to differentiate between the different cordless systems.…”

Section: Introductionmentioning

confidence: 99%

Gingival Displacement in the Vertical and Horizontal Dimension under the Condition of Mild Gingivitis—A Randomized Clinical Study

Kuhn

Zügel

Korbay

et al. 2022

JCM

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This randomized clinical study aimed at quantifying the gingival displacement performance in the vertical and horizontal directions of the 3M™ Astringent Retraction Paste (3M Oral Care, Seefeld, Germany) in comparison with the double-cord technique with aluminum chloride as an astringent. Afterward, any soft-tissue changes were assessed for 12 months. After inducing mild gingivitis, 18 probands received the intervention ‘cord’ and 22 probands received the intervention ‘paste’ at the palatal half of upper premolars prior to conventional impression making. The resulting plaster casts were digitized and analyzed for the vertical and horizontal gingival displacement, applying a newly developed computer-assisted methodology. The entire palatal half of the tooth was evaluated instead of only single sites. Under the condition of mild gingivitis, the gingival displacement performance was comparable for both techniques in the horizontal direction (width) and only somewhat better for the cord technique in the vertical direction (depth). The magnitude of displacement was in a similar range in both directions, with somewhat higher values in the vertical direction. The marginal gingiva height changes were of such low extent during the follow-up period of 12 months with only minimally higher values for the paste that they cannot be considered as clinically relevant recessions.

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Comparative clinical efficacy evaluation of three gingival displacement systems

Cited by 10 publications

References 10 publications

The Causes of Marginal Discrepancy of Fixed Dental Prostheses: A Cross-Sectional Study

The Causes of Marginal Discrepancy of Fixed Dental Prostheses: A Cross-Sectional Study

Assessment of aluminum chloride retraction cords, expasyl, and tetrahydrozoline-soaked retraction systems in gingival retraction

Gingival Displacement in the Vertical and Horizontal Dimension under the Condition of Mild Gingivitis—A Randomized Clinical Study

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