1Walton R, Fouad A. Endodontic interappointment flare- ups:A prospective study of incidence and related factors. J Endod,1992; 18(4): 172～ 177.
2Albashaired ZAM, Alnegrish AS. Postobturation pain after single and multiplevisit endodontic therapy a prospective study.J Dentistry, 1998;26(3) :227～232.
3Matusow RJ, Mass C. The flare- up phenomenon in endodontics: A clinical perspective and review. Oral Surg, 1988;65(6) :750～753.
4Palmer NA, Pealing R, Ireland RS, et al. A study of therapeutic antibiotic prescribing in National Health Service general dental practice in England. Br Dent J, 2000;2000(10) :554～548.
