Thibault Colloc in his first blog for the Dental Elf looks at this review comparing gingival displacement with conventional cords and cordless techniques. The findings suggest that the sulcus width displacement is increased with cord technique compared to cordless technique but the available studies are all at high risk of bias.
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This review looked at the impact of gingival retraction on periodontal health. Only 10 small studies were available so which no method seems significantly superior the quality of the available evidence is limited.
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This review of corded vs. cordless gingival retraction systems included 7 trials. Both may have a role with corded systems being suggested when there is a greater need for gingival displacement.
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