The influence of disposing the shoulder by the dental pneumatic ultrasonic hand-piece on the edge sealing prop-erty of the zirconium dioxide crown
	    		
		   		
	    	
    	
    	
   		
        
        	
        		- VernacularTitle:气动超声手机处理肩台对氧化锆全冠边缘密合性的影响
 
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Jianying ZHOU
			        		
			        		;
		        		
		        		
		        		
			        		Jiupeng DENG
			        		
			        		;
		        		
		        		
		        		
			        		Yueming QI
			        		
			        		;
		        		
		        		
		        		
			        		Jingyu ZHANG
			        		
			        		
		        		
		        		
		        		
		        		
		        		
			        		
			        		
		        		
	        		
        		 
        	
        	
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		Edge sealing property;
			        		
			        		
			        		
				        		Shoulder microleakage;
			        		
			        		
			        		
				        		The dental pneumatic ultrasonic hand-piece;
			        		
			        		
			        		
				        		Staining method
			        		
			        		
	        			
        			
        		
 
        	
            
            
            	- From:
	            		
	            			Journal of Practical Stomatology
	            		
	            		 2016;32(6):871-873
	            	
            	
 
            
            
            	- CountryChina
 
            
            
            	- Language:Chinese
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	15 extracted premolars were selected and randomly divided into 3 groups, with 5 in each group. MANI TF-13 bur、TR13-EF bur and the dental pneumatic ultrasonic hand-piece were respectively used to dispose the shoulder. 15 Zirconium dioxide full crowns were made. The shoulder marginal microleakage was observed by staining method. Dental pneumatic ultrasonic hand-piece showed the best anti-mic-roleakage effect in shoulder refinement.