Effect of retraction procedures on the periodontium in humans

Ruel, Jon; Schuessler, Peter J.; Malament, Kenneth A.; Mori, Donald F.

doi:10.1016/0022-3913(80)90069-4

Cited by 61 publications

(38 citation statements)

References 13 publications

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“…These findings are similar to Jon Ruel et al . [8] and R. Azzi et al . [10] The histological specimens of the retraction paste showed only six cases of disrupted junctional epithelium and sulcular epithelium as compared to the retraction cord.…”

Section: Discussionmentioning

confidence: 99%

Effect of retraction materials on gingival health: A histopathological study

Phatale

Marawar

Byakod

et al. 2010

J Indian Soc Periodontol

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Background:Gingival retraction methods are used in dentistry for impressions of subgingival crown margins, such as, mechanical, chemical, chemicomechanical, and surgical. These methods may injure the gingival sulcular epithelium. Hence, the present study is carried out to evaluate the effect of different retraction materials, such as, Expasyl, Magic Foam Cord, and impregnated retraction cord on the gingival sulcular epithelium.Materials and Methods:This study included 30 cases of bilateral premolar extraction patients with Loe and Silness gingival index zero. Retraction materials were kept in the dry, isolated labial gingival sulcus for the required time. The retraction materials were removed by rinsing with water. Retracted gingiva of 2 – 3 mm from the gingival margin along with the tooth was extracted and the decalcified sections were microscopically studied. Data analysis: Data were analyzed by applying the chi-square test.Results:This study showed better results with retraction paste as compared to the retraction cord, and there was a significant association between retraction materials and the relative degree of injury to the sulcular epithelium.Conclusion:There is a significant association between retraction materials and gingival sulcular epithelium. It can be stated that impregnated retraction cord, may be used commonly but it needs proper tissue manipulation and is technique sensitive. Newly advanced material in the form of retraction paste like Expasyl or Magic Foam Cord was found to be better than cord as assessed histologically, it respects periodontium.

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Section: Discussionmentioning

confidence: 99%

Effect of retraction materials on gingival health: A histopathological study

Phatale

Marawar

Byakod

et al. 2010

J Indian Soc Periodontol

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“…Direct injury to the gingiva through mechanical procedures often shows obvious and immediate changes (de Gennaro et al 1982, Feng et al 2006). Previous studies reported that gingival retraction with cord caused destruction of the junctional epithelium that took 8 days to heal and caused gingival recession of about 0.2–0.1 mm (Ruel et al 1980, Wassell et al 2002). This study did not demonstrate that at a significant level, due probably to the crudeness inherent in the PD measurement.…”

Section: Discussionmentioning

confidence: 99%

A clinical study on the effects of cordless and conventional retraction techniques on the gingival and periodontal health

Hamad

Azar

Alwaeli

et al. 2008

J Clinic Periodontology

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“…10 However, the use of retraction cord can be laborious, time-consuming, can cause gingival bleeding, uncomfortable for patients in the absence of anesthesia, and when inappropriately manipulated, can lead to direct injury and gingival recession. [11][12][13] 2,19,20 Hence, the objective of this in vitro study was to assess impact of Expasyl ® on the shear bond strength of two adhesive systems: total-etch and self-etch bonding material.…”

Section: 5005/jp-journals-10024-1686mentioning

confidence: 99%

The Impact of Expasyl® Gingival Retraction Paste on the Bond Strength of Self-etch and Total-etch Systems

Baker¹,

Araby²,

Amri³

et al. 2015

The Journal of Contemporary Dental Practice

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Objective: To evaluate the influence of Expasyl ® gingival retraction paste on the shear bond strength of self-etch and total-etch adhesive systems. Materials and methods:Twenty-four specimens of extracted, caries-free, sound human molars were used in this study. The molars were then cut vertically into halves through the buccal and lingual cusps. Forty-eight specimens were divided into four groups (total-etch, total-etch with Expasyl application, self-etch, self-etch with Expasyl application) and the shear bond strength was tested.Results: Expasyl significantly reduced the shear bond strength of the self-etch and total-etch adhesive systems. The self-etch system showed relatively lower performance compared with the total-etch adhesive system. The shear bond strength values of the total-etch adhesive without Expasyl showed the highest bond strength (21.48 ± 2.89), while the self-etching group adhesive treated with Expasyl showed the lowest shear bond strength value (14.89 ± 1.81). Conclusion:From the observations of this in vitro study, it can be concluded that the use of Expasyl ® gingival retraction system can negatively affect bond strength of adhesives. The total-etch system showed better compatibility to the Expasyl gingival retraction system than the self-etch.

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Effect of retraction procedures on the periodontium in humans

Cited by 61 publications

References 13 publications

Effect of retraction materials on gingival health: A histopathological study

Effect of retraction materials on gingival health: A histopathological study

A clinical study on the effects of cordless and conventional retraction techniques on the gingival and periodontal health

The Impact of Expasyl® Gingival Retraction Paste on the Bond Strength of Self-etch and Total-etch Systems

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