Effect of a cordless retraction paste on titanium surface: a topographic, chemical and biocompatibility evaluation

Cooper, Katherine R.; Bennani, Vincent; Tawse‐Smith, Andrew; Reid, Malcolm R.; Stirling, Claudine H.; Dias, George J.

doi:10.1590/s1806-83242013000300002

Cited by 4 publications

(2 citation statements)

References 9 publications

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“…To obtain accurate marginal fit of the prosthesis a precise transfer from the patient to the definitive cast is essential. Hence, gingival displacement is necessary not only to record the gingival finish line but also the adjacent tooth structure [15].…”

Section: Discussionmentioning

confidence: 99%

Comparative Evaluation of Efficacy of Gingival Retraction Using Chemical and Mechanical Methods: An in Vivo Study

Kohli

Hegde

2018

Asian J Pharm Clin Res

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Objective: The purpose of this in vivo study was to compare and evaluate the clinical efficacy of two gingival retraction systems; Ultrapak and Traxodent, on the basis of the amount of gingival retraction achieved in vertical and horizontal direction and their hemorrhage control.Methods: A total of 60 subjects were selected requiring fixed prosthesis. The two gingival retraction systems were used on the prepared abutments randomly. The vertical gingival retraction was measured before and after retraction using flexible measuring strip with 0.5 mm grading. The horizontal retraction was measured on the casts poured in polysilicone impressions made before the retraction and after retraction.Results: Statistically significant difference (p<0.05) was found between the amount of the retraction (vertical and horizontal) achieved by Ultrapak as compared to Traxodent. However, in achieving hemostasis Traxodent showed better efficiency than Ultrapak (p<0.05). Conclusion:The mean retraction width and depth achieved with retraction cord (Ultrapak) was significantly greater when compared with retraction paste. Although retraction paste (Traxodent) showed bleeding index significantly less when compared to that of retraction cord (Ultrapak).

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Section: Discussionmentioning

confidence: 99%

Comparative Evaluation of Efficacy of Gingival Retraction Using Chemical and Mechanical Methods: An in Vivo Study

Kohli

Hegde

2018

Asian J Pharm Clin Res

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“…If more accurate elemental analysis were the main aim of the research, Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) could have been carried out. LA-ICP-MS enables highly sensitive elemental and isotopic analysis to be performed directly on solid samples [ 40 ].…”

Section: Discussionmentioning

confidence: 99%

Effect of Air-Polishing on Titanium Surfaces, Biofilm Removal, and Biocompatibility: A Pilot Study

Bennani

Hwang

Tawse‐Smith

et al. 2015

BioMed Research International

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Purpose. The aims of this in vitro study were to evaluate morphological changes induced by glycine powder air-polishing on titanium surfaces, biofilm removal, and biocompatibility. Material and Methods. Titanium grade IV discs were allocated into two groups: (1) discs without biofilm and (2) discs for Streptococcus mutans biofilm formation. Discs in each group were further subdivided into (a) no treatment and (b) air-polishing treatment with glycine powder. Discs were characterized by scanning electron microscopy (SEM), electron-dispersive spectroscopy (EDS), and confocal microscopy. Bacterial biofilms were quantified using a crystal violet dye-binding assay. Biocompatibility was evaluated by measuring the coverage and viability of L929 fibroblast cells cultured on the discs. Results. Air-polishing increased the roughness of treated discs (P < 0.05). EDS analysis did not show significant differences in the chemical composition of treated and nontreated discs. The amount of residual biofilm on treated discs was 8.6-fold lower than untreated controls (P < 0.05). Coverage of treated discs by fibroblasts was half that of untreated discs (P < 0.05) although both groups had the same cell viability. Conclusions. Air-polishing removed a significant amount of biofilm from titanium surfaces. The “polishing” was accompanied by increased surface roughness, but there were no changes in chemical and elemental compositions, nor the biocompatibility.

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Clinical and immunological aspects of gingival retraction systems in fixed dental prostheses: A systematic review

Alarcón-Sánchez,

Minervini,

Heboyan

2024

Eur J Inflamm

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Objective To describe the existing knowledge on the efficacy of the different gingival retraction systems (GRSs) in gingival displacement, to know their effects on biological functions of human gingival fibroblasts (HGFs), and on the expression of inflammatory mediators (TNF-α and MCP-1) in gingival crevicular fluid (GCF), and saliva. Methods The protocol used for this systematic review was registered in INPLASY: 202410005. A digital search was performed in the databases PubMed/MEDLINE, Scopus, Science Direct, Web of Science, and Google Scholar of the literature published in the English language in the last 17 years (from December 10th, 2006, to May 15th, 2023), and included retrospective randomized clinical studies, prospective, and in vitro experimental studies. In addition, PRISMA criteria were followed. The methodological validity of the selected articles was assessed using Joanna Briggs Institute (JBI) critical appraisal tool, and the modified Consolidated Standards of Reporting Trials checklist (CONSORT). Results 27 articles published between 2006 and 2023 were evaluated. Six hundred 32 subjects, aged between 18 and 65, participated in the clinical studies. 93.7% of the studies assessed periodontally healthy patients, and only 6.3% evaluated patients with mild gingivitis. Also, 882 teeth were samples, of which the majority were posterior teeth (54%). The most commonly used GRSs was aluminum chloride gingival retraction paste (74%). The GCF samples were taken in 67% of the studies, and ELISA was used in all studies (100%) to determine inflammatory mediators. The most frequently analyzed marker was TNF-α (67%). Conclusion The system Merocel Strips (Mystic, conn, USA) achieved the highest level of gingival displacement (1.66 ± 3.7 mm). In addition, the braided cords produced the lowest TNF-α levels (0.43 ± 0.08pg/mL). Astringent systems such as ferric sulfate had higher toxicity in HGFs.

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Effect of a cordless retraction paste on titanium surface: a topographic, chemical and biocompatibility evaluation

Cited by 4 publications

References 9 publications

Comparative Evaluation of Efficacy of Gingival Retraction Using Chemical and Mechanical Methods: An in Vivo Study

Comparative Evaluation of Efficacy of Gingival Retraction Using Chemical and Mechanical Methods: An in Vivo Study

Effect of Air-Polishing on Titanium Surfaces, Biofilm Removal, and Biocompatibility: A Pilot Study

Clinical and immunological aspects of gingival retraction systems in fixed dental prostheses: A systematic review

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