I do this withtreasured wine glasses; however, the glass may be considerably thinner than what a large bowl would require.
Use an ordinary STEEL nail file, (not an emery board).
File it down gently whenever you're relaxing for a moment. Any rough edges will disappear, and if the chip is small enough - so will the chip.
Regardless: it will be smooth, rounded, and no further danger to anyoine.
J.dawson
September 2009