No false passage formed in Group B. Statistical significance was found between Group A and Group B as the primary success rates of searching the nasal cut ends ( X ( 2 ) equal to 10.522 , P less than 0.01 ) and the false passage forming rates were concerned ( X ( 2 ) ) equal to 4.704 , P less than 0.05 ) , whereas no significance was found between the two groups as the final success rates were concerned ( X ( 2 ) equal to 0.007 , P larger than 0.05 ) .
