The effect of artificial saliva on the static and kinetic frictional forces of stainless steel (Dentaurum®) and polycrystalline ceramic (Transcend®) brackets in combination with 0·018-inch round and 0·019 × 0·025-inch Edgewise archwire sizes and stainless steel, nickel-titanium and beta-titanium archwire materials, under a constant ligature force were investigated. In all cases, artificial saliva had the effect of increasing the frictional force when compared with the dry state.
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