Impression tray designs and techniques for complete dentures in cases of microstomia--a review

ObjectivesThe present paper aims to review the literature on various approaches in the tray designs and different techniques used to overcome difficulties in making impressions of patients with severely limited mouth opening published from 1984 to 2009.Study designA search in the National Library of Medicine's Pub Med database, Google search and Science Direct was performed to include all case reports and reviews on prosthodontic rehabilitation of patients with microstomia. A total of 17 articles were included for discussion in the review out of the 22 articles found to be giving new tray designs.ConclusionsDifferent tray designs and impression techniques which can be useful in management of difficult cases causing little discomfort to the patient and help in getting back such patients to a comfortable social living.