Gingival displacement: Conventional cord versus cordless techniques

gingival retraction cord

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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Ceramic crowns: What type of finish line?


This review of the effect of finish lines on the marginal and internal fit of ceramic crowns included 16 small in-vitro studies suggesting wider marginal gaps with chamfer finish lines.

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Little evidence available on the effect of prosthetic margin placement on the incidence of secondary caries


The placement of prosthetic restoration finish line is the subject of much interest and debate. The aim of this review was to assess the effect of prosthetic margin placement on caries susceptibility of abutment teeth Searches were conducted in PubMed, Embase, Google Scholar, Cochrane Central Register of Database of Systematic reviews, Cochrane Central Register of [read the full story…]

Is there a ‘standard’ biologic width for periodontal health?


When restoring teeth the placement of the margin of the restoration is considered to be important for periodontal health.  This position may be a factor in the initiation or progression of periodontal disease.   Biologic width has been defined as the junctional epithelium and supracrestal connective tissue attachment surrounding every tooth. it is suggested that his [read the full story…]