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Revisiting the Functionally Generated Path Technique: Is this an Aid to Predictable Digital Occlusal Design? Part 1: Introduction and Background Tom Bereznicki Rohit Patel Megan Clark Dental Update 2024 49:5, 707-709.
Authors
TomBereznicki
BDS(Edin), MFDTEd, MFDSEng, MCGDent
Visiting Clinical Specialist Teacher, Department of Primary Dental Care, King's College London; Private Practice, Dawood & Tanner, Wimpole Street, London
Registering a pre-existing occlusal scheme is paramount to the long-term success of a fixed restoration(s) and a requirement when working conformatively, whether in analogue or digital format. Part 1 of this two-part series highlights those occlusal schemes that provide difficulties using established techniques in arriving at a predictable restoration requiring minimal occlusal adjustments chairside. Part 2 introduces the theory of the functionally generated path (FGP) technique, and two cases involving implant-retained restorations will be used to highlight the benefit of adopting this technique into the digital workflow in the provision of occlusally precise restorations.
CPD/Clinical Relevance: This article provides an overview of difficult occlusal schemes and identifies those that would benefit from using the functionally generated path technique in the provision of occlusally correct restorations.
Article
Occlusion is of key importance in the provision of a long-lasting and functional restoration. Particularly when working conformatively, it is imperative that the correct information is provided to the laboratory to fabricate the appropriate restoration. Therefore, understanding occlusion and the challenges faced when patients do not conform to the ideal Class I occlusal relationship is fundamental to being able to provide a restoration that is predictable and accurate, with minimal occlusal adjustments required chairside at the fit appointment. This information is just as important if working with a digital format as errors can be amplified and may go unnoticed until the final fit. Milled zirconia restorations can generally only undergo a limited degree of adjustment before having to be remade. Part 1 of this two-part series highlights those difficult occlusal cases that would benefit from the use of the functionally generated path (FGP) technique to help avoid some of these errors by providing an accurate and predictable occlusal scheme for the final restoration. Part 2 explains the FGP technique and its adaptation from its analogue background to the digital workflow. Two cases of implant-retained restorations are used to demonstrate the technique step by step.
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