Abstract:

BACKGROUND: The modified scheme of occlusion is a good treatment for complete denture with severely resorbed alveolar ridges. Linear occlual scheme, linualized occlusal scheme and long-centric occlusal scheme are the typical types in modified occlusal schemes.
OBJECTIVE: To review the characters and applications of these three types of modified occlusal schemes in complete denture.
METHODS: CNKI (1985-01/2011-11) and PubMed (1965-01/2011-11) were retrieved for articles addressing linear occlual scheme, linualized occlusal scheme and long-centric occlusal scheme used in complete denture.
RESULTS AND CONCLUSION: Linear occlusal scheme have been modified into bladed teeth so as to achieve linear occlusal contacts, and potentially damaging lateral forces are minimized as a result. The lingualized occlusal scheme provides better aesthetics than the monoplane occlusion scheme, and better stability than bilateral occlusion scheme of anatomic teeth, in the case of resorbed residual ridges. The long-centric occlusal scheme can meet the physiological requirement for the long centric of edentulous patients and achieve a free slide from the centric relation position to the muscular contact position of the mandible. The vertical forces provided by these three modified occlusal schemes can be centered upon the residual ridges. The application of vertical forces is considered advantageous for denture stability and maintenance of supporting hard and soft tissues.