A comparative study of inter-abutment distance of dies made from full arch dual-arch impression trays with those made from full arch stock trays: An <i>in vitro</i> study

• Main Authors: Reddy Jagan, Prashanti E, Kumar G, Suresh Sajjan M, Mathew Xavier
• Format: Article
• Language: English
• Published: Wolters Kluwer Medknow Publications 2009-01-01
• Series: Indian Journal of Dental Research
• Subjects: Dual arch; triple tray; quad tray
• Online Access: http://www.ijdr.in/article.asp?issn=0970-9290;year=2009;volume=20;issue=4;spage=412;epage=417;aulast=Reddy

<b>Objectives: </b> The dual-arch impression technique is convenient in that it makes the required maxillary and mandibular impressions, as well as the inter-occlusal record in one procedure. The accuracy of inter-abutment distance in dies fabricated from dual-arch impression technique remains in question because there is little information available in the literature. <b> Materials and Methods:</b> This study was conducted to evaluate the accuracy of inter-abutment distance in dies obtained from full arch dual-arch trays with those obtained from full arch stock metal trays. <b>Results and Conclusion: </b> The metal dual-arch trays showed better accuracy followed by the plastic dual-arch and stock dentulous trays, respectively, though statistically insignificant. The pouring sequence did not have any effect on the inter-abutment distance statistically, though pouring the non-working side of the dual-arch impression first showed better accuracy.