الفهرس 
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Abstract
This study was conducted on thirty patients with mouth Alord to study the effect of locking edges to retain full upper base kit To achieve this purpose, have been using wax edges green fingers have been keying each spoonful special in a different way than others , and this was on the road the following order:
1 - Lock the top edge only.
2 - lock edge only incidental .
3 - Lock the top edge - incidental together .
Then took edition by zinc oxide material - Aleginol each spoon was the work of the base of each edition kit in the normal construction crews .
Measuring device was used in the retention measuring spoons retention of each method , as well as in the measurement of retention rules crews manufacturer of each method with the same previous device .
The study showed the following results as
1 - Zidh of spoons and retention rules crews headlights after locking edges to varying degrees .
2 - lock mode achieved only occasional edges and edges spin lock method - headlights together the largest increase in the retention priority with the second method (lock edges incidental - headlights Together ) in both private and spoons full crews headlights rules .
3 - observed increase in the retention of full dentures headlights rules for retention of special spoons and this increase was not statistically impressive in lock mode only occasional edges . Study were drawn Yale :
1 - incidental way - the upper edges of the lock spoons and مايترتب from construction crews headlights bases full , one of the best methods used in lock edges.
2 - There is no significant difference in the retention rules crews lock manufacturer in a way incidental edges only way lock edges spin - headlights together.