Porcelain-fused-to-metal crowns or all-ceramic crowns?


This rapid review from the Canadian Agency for Drugs and Technologies in Health (CADTH) identified 29 studies including 10 systematic reviews. The findings suggest a lower long term survival rate for ceramic crowns (48%) compared with porcelain fused to metal crowns (62%).

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Crowns improved survival of root treated teeth suggests review


This technology review looked at the effectiveness of crowns on root treated teeth. 3 systematic reviews and 4 non-randomised studies were included. They found that the short term survival with crowns or direct fillings is comparable but long term root canal treated teeth may have better survival.

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Intentionally replanted teeth: a possible treatment option?

shutterstock_79298812-implant placement

This review found a significantly higher mean survival for implant supported crowns (97%) compared with Intentionally replanted (IR) teeth (88%). Evidence for IR teeth was limited, being heterogeneous, old and potential suffering from publication bias.

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Dental implants: review suggests high survival rates at over 10 years


This review of dental implant studies with 10 years or more follow up found average survival rates of 94.6% (range 73.4%- 100%). The lowest rate 73.4% was seen in the study with the longest follow up period (20 years).

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Overdentures: scarce evidence to assess 1- versus 2 dental implant support


This review compared the survival of mandibular overdentures supported by 1- or 2- implants. Only two small RCTs were identified that suggest no difference between 1- or 2- implants. However only a small number of patients were included in these trials so the evidence is weak and more high quality trials are required.

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ADA-EBD critical summary – survival of various tooth- or implant-supported restorations


This new critical summary from the ADA-EBD Center for evidence-based dentistry looks at a 2012 review from Pjetursson et al  which set out  to assess and compare the 5- and 10-year survival of different types of tooth-supported and implant-supported fixed dental prostheses (FDPs) and single crowns (SCs), and to describe the incidence of biological and [read the full story…]

Limited evidence to compare survival of metal ceramic with porcelain-fused-to-zirconia single crowns


Crowning of teeth has been carried out for many years in order to replace damaged/diseased tooth structure or to improve aesthetics.  Increasing patient demand has helped lead developments in ceramic technology and zirconium is one of the new materials in this field. The aim of this study was to compare the clinical survival rates of [read the full story…]

Review suggests that radiotherapy was associated with higher rates of implant loss


Implant–supported restorations show good success rates in healthy tissues while studies in irradiated jaws contrasting outcomes have been reported. The aim of this review was 
to assess the survival rate of titanium implants placed in irradiated jaws. The Medline, Embase, and CENTRAL, and  OpenGRAY databases were searched together with a number of journals (Clinical Implant [read the full story…]

ADA-EBD summary on short dental implants

iStock_000014314701XSmall dental implant

This critical summary form the American –Dental Association-Centre for Evidence-based Dentistry looks at a 2011 review by Sun et al . The commentator feels that there was a lack of focus to the question under consideration and that the search strategy was limited. There were also some concerns about  whether the potential for publication had [read the full story…]

Evidence of small benefit in peri-implant bone loss seen in first 5 years with platform switching

Cross section of a dental implant

This critical summary from the American Dental Association – Evidence-based Center (ADA-EBD) looks at a 2010 systematic review from Atieh et al. The aim of the review was to assess whether platform switching  (the placement of a smaller diameter prosthetic component on a larger diameter implant fixture) improved survival rate and bone loss. The commentator [read the full story…]