Showing papers on "Occlusal scheme published in 1997"

Overdenture prosthesis for oral rehabilitation of hypohidrotic ectodermal dysplasia: a case report.

Abstract: The dentition of a patient with ectodermal dysplasia was restored with a modified hollowed maxillary overdenture opposing a conventional mandibular overdenture. Lingualized occlusion was used because it was the ideal occlusal scheme for this patient to achieve denture stability. The lingual cusps of the maxillary posterior teeth contacted the fossae of the mandibular teeth to create freedom of movement and to prevent lateral interference.

A Guideline for the Selection of the Artificial Posterior Teeth. Consideration of the Basis of the in vitro Study.

Abstract: The posterior artificial teeth form and occlusal scheme are the some of the important factors improving the denture stability and function. The effect of the artificial posterior teeth form and occlusal scheme on the pressure distribution on the complete denture supporting structure during simulated mastication was investigated by using upper and lower edentulous simulators. In this report, a guideline for the selection of posterior artificial teeth for complete denture, based on our previous investigation, was studied.1. The lateral wing inclination of the incisal guide table of semi-adjustable articulator, and occlusal form and scheme of posterior articulator hardly affected the pressure distribution on supporting tissues under complete denture in centric occlusion.2. When lateral mastication was simulated, the lateral wing inclination of the incisal guide table of semi-adjustable articulator, and occlusal form and scheme of posterior articulator affected the pressure distribution on supporting tissues under complete denture in centric occlusion.3. The guidelines in consideration of the denture stability were as follows:1) In the case of the patient who had good upper and poor lower alveolar ridges, full balanced occlusion with Livdent teeth should be set in his/her complete denture.2) In the case of the patient who had poor upper and lower alveolar ridged, lingualized occlusion should be set in his/her complete denture.3) In the case of the patient who had poor upper and good lower alveolar ridges, Bio-Ace teeth should be selected rather than Livdent teeth in his/her complete denture fabrication.

Basic Studies on Pressure Distribution of Supporting Structures under a Complete Denture. Part 4. Influence of Occlusal Schenle on Pressure Distribution under a Denture.

Abstract: When making a complete denture, not only denture stability but also the restoration of function such as mastication and speech must be considered. The purpose of this study was to compare the pressure distribution in the supporting tissue under simulated upper and lower complete dentures using two different posterior occlusal schemes: fully balanced occlusion and lingualized occlusion.The results were as follows:1. In centric occlusion, the occlusal scheme of the artificial posterior teeth did not affect the pressure distribution under complete denture.2. In case of unilateral biting, the occlusal scheme affected the pressure distribution under complete denture with Livdent FB artificial posterior teeth, remarkably.3. In case of unilateral biting in eccentric occlusion, the occlusal scheme affected the pressure distribution. The pressure values increased on the nonworking side.It was concluded that the lingualized occlusion increases the denture stability and distributes the occlusal force to the supporting structures on the nonworking side.