Mandibular implant-supported overdentures–attachment systems

Overdenture - ball attachments

This review of the effectiveness of different attachment systems for complete edentulous mandibular Implant-supported overdentures included 25 RCTs . The findings suggest no significant differences between attachment systems.

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Face-bow transfer and prosthetic outcomes


This review of face‐bow transfer on the outcome of a dental prosthesis fabrication included 15 RCTs involving 406 patients. All but one study reported either no difference or better outcomes without the use of the face-bow.

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Dentures: techniques and materials for final impressions

shutterstock_28911784 False teeth

9 RCTs were included in this Cochrane review of different final-impression techniques and materials for complete and removable partial dentures. The available evidence for the relative benefits of different denture fabrication techniques and final-impression materials is limited and is of low or very low quality.

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Denture hygiene practices

shutterstock_28911784 False teeth

25 studies were included in this review of denture hygiene practices. Mechanical interventions in conjunction with chemical agents were the most effective, Denture brushing was the most common patient practice.

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Digital impressions for fixed prosthodontics?


This review of Intraoral digital impressions suggest they provide similar accuracy to conventional elastomeric impressions. However only 2 of the 11 studies included are clinical and these are both small, so the results should be interpreted cautiously.

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Partial dentures provided partial compensation for masticatory function


This review looked at the ability of partial dentures to improve masticatory performance. 8 studies involving 180 patients were included suggesting that RPDs partially compensated for this reduced performance.

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Limited available evidence suggests that a one-step impression technique is sufficient for the majority of edentulous patients


Obtaining an accurate impression of the potential denture supporting area is a key stage in the construction of complete dentures.  Traditionally a two-stage procedure has been recommended.  The aim of this review was to assess the effectiveness of different impression materials and techniques used in complete denture construction. Medline/PubMed and the Cochrane Library were searched together [read the full story…]

Review finds limited evidence on maintenance requirements of implant retained overdentures in the upper jaw


Rehabilitating the edentulous upper jaw with implant-supported dentures requires long-term maintenance of the prosthesis. This review aimed to evaluate the literature on prosthodontic maintenance requirements for maxillary implant overdentures using different prosthodontic designs. The authors conducted electronic searches on Medline, PubMed and Google Scholar. In addition they hand searched 15 dental journals and the reference [read the full story…]

New Cochrane Protocol for April 2012

Logo of The Cochrane Collaboration

Just one new dental protocol registered with the Cochrane Oral Health Group this month . Ban Z, Jia Y, Li C, Zhu Z, Ban Y, Shi Z. Gingival retraction for fixed prosthodontic treatment (Protocol). Cochrane Database of Systematic Reviews 2012, Issue 4. Art. No.: CD009797. DOI: 10.1002/14651858.CD009797. Crowns, bridges and other fixed dental prosthesis  are [read the full story…]

Implant supported lower dentures increased satisfaction and quality of life over conventional dentures


Edentulism can have functional, aesthetic and psychological impacts on patients.   The aim of this study was to compare any improvement  in quality of life and overall patient satisfaction following the provision of implant supported mandibular overdentures compared with conventional mandibular dentures. 122 edentulous patients had a baseline assessment of denture satisfaction and quality of life [read the full story…]