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Effect of Splinting on Abutment Tooth Movement when a Distal Extension Partial Denture Used(¥±)
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KMID : 0615219860110010087
Abstract
The effect of splinting on abutment tooth distal movement was performed in vitro study. An acrylic resin mandibular model with missing 2nd premolars, molars and a removable partial denture framework were constructed.
The roots of the canines, 1st premolars and edentulous ridges were coated with silicone rubber.
A modified Ney Surveyor was used for vertical load application, and abutment tooth distal movement were measured with a dial gauge when four conditions of splinting methods were tested by applying unilateral vertical loadings.
The results are follows;
1. The magnitude of abutment tooth distal movement on the non-load side was less 40¡69% than that occurred on the load side.
2. On the load side, reducing effect of splinting on abutment tooth movement in the condition of load side double abutment(30%), non-load side double abutment (10%), double abutments of both sides (40%) was compared with single abutments of both sides.
3. On the non-load side, reducing effect of splinting on abutment tooth movement in the condition of load side double abutment(5%), non-load side double abutment(22%), double abutments of both sides(59%) was compared with single abutments of both sides.
4. The magnitude of abutment tooth distal movement in the condition of double abutments of both sides was less 40¡59% than that in the condition of single abutments of both sides.
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