1. Classification of chronic pain;Merskey,1994
2. Pain and disability;Osterwels,1987
3. Dietary intake and the extraction of third molars: A potential problem;Adams;Dent Update,1996
4. Complications after mandibular third molar extraction;de Boer;Quintessence Int,1995
5. An evaluation of complications following dental extractions using either sterile or clean gloves;Cheung;Int J Oral Maxillofac Surg,2001