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Article: Volume 43 Number 7 Page 660 - September 2016

  Dent Update 2016; 43: 660-670  Read article

Prosthodontics:  Managing the Unstable Mandibular Complete Denture – Tooth Placement and the Polished Surface

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Abstract: Constructing satisfactory conventional mandibular complete dentures is often challenging in comparison to the upper counterpart partially due to differences in the anatomy of the denture-bearing area. This problem is exaggerated in the atrophic mandible, where supporting structures are frequently ill-defined and suboptimal in quality. Implant-retained prostheses offer well recognized benefits but are not always a feasible options, so conventional methods must be relied upon. The importance of impression quality and registration has been reviewed previously. This article aims to discuss the influence of tooth placement, the polished surfaces and the neutral zone on the success of lower dentures.

Clinical relevance: This article highlights the importance that polished surface contouring and tooth prescription can have on the outcome of lower dentures. Techniques for assessing and recording the neutral zone are explained, along with alternative occlusal schemes.

Author notes: Peter Clarke, BDS(Hons), MFDS RCSP(Glasg), DCT in Restorative Dentistry, (pete.t.clarke@gmail.com), A Johanna Leven, BDS, MFDS RCS(Ed), StR in Restorative Dentistry, Liverpool University Dental Hospital and Callum C Youngson, BDS, DDSc, FDS, DRD, MRD, FDS(Rest Dent) RCS(Edin), FDS RCS(Eng), Professor/Honorary Consultant in Restorative Dentistry, Liverpool University School of Dentistry, Pembroke Place, Liverpool L3 5PS, UK.

Objective: To discuss the importance of tooth placement and polished surface contour on mandibular complete denture stability.