buffering the local anesthetics significantly reduced the mean quantitative pain estimates compared to the nonbuffered controls : 1 ) 1 % lidocaine compared with buffered 1 % lidocaine , 4.9 +/- 0.4 versus 1.1 +/- 0.2 ( p less than 10 ( -6 ) ) ;
C0030193
pain
C0023660
lidocaine