Pulpal and periapical pathosis after placing indirect coronal restorations

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This review investigating the incidence of and influential factors on pulp necrosis and periapical pathosis of vital teeth following indirect restorations included 37 studies. The findings suggest an overal incidence of pulpal necrosis of 5.02% (3.70 to 6.52%).

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Locking taper dental implant – abutment connections

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This review of the clinical performance and complications of single crowns retained by the locking taper system included 12 studies. The findings indicate that the locking taper system had similar performance to the conventional Morse taper system although none of teh studies included direct comparisons.

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Digital or conventional workflow for single implant crown impressions?

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Thibault Colloc takes a look at this review comparing digital and conventional workflows for the placement of single crowns on dental implants. Ten studies were included involving 214 patients and 278 crowns.

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Gingival displacement: Conventional cord versus cordless techniques

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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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Dental implants: Short or standard for single-crown restoration in posterior jaw?

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This review comparing whether implant supported crowns on short or standard implants have similar clinical outcomes in the posterior alveolar bone included 5 RCTs. the findings suggested no differences at one year but that shorter implants performed less well at 5 years.

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Post and core restorations: does the ferrule effect influence success?

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This review evaluating the presence or absence of a ferrule influences the failure rate in fibre-reinforced composite (FRC) post-and-core restorations included 4 studies. While the findings indicate no differences in failure rates between restoration with and with out a ferrule the quality of the evidence is low.

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All-ceramic implant-supported single crowns

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This review of survival and technical complication rates of all-ceramic implant-supported single crowns included 41 mainly observational studies suggesting high survival rates for all-ceramic implant supported single crowns.

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Crown lengthening – Are outcomes stable?

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This review to assess if surgical crown lengthening produces stable clinical outcomes only identified 5 small trials all at high risk of bias

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Metal-free fixed dental prosthesis – insufficient evidence to support or refute effectiveness

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Only 9 small RCTs were included in this Cochrane review of metal-free materials for prosthodontic restorations providing insufficient evidence to support or refute the effectiveness of metal-free materials for fixed prosthodontic treatment over metal-ceramic or other type of standard restorations.

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Post-retained single crowns performance linked to amount of coronal structure

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This review of post-retained crowns on endodontically treated teeth included 9 RCTs. Findings suggest that that the number of remaining coronal walls and the use of posts are key factors for the success/ survival of these restorations. However the quality of the available evidence is low.

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