Accuracy of contacts calculated from 3D images of occlusal surfaces

Ralph DeLong, S. Knorr, Gary C Anderson, James S Hodges, M R Pintado

Research output: Contribution to journalArticlepeer-review

51 Scopus citations


Objectives: Compare occlusal contacts calculated from 3D virtual models created from clinical records to contacts identified clinically using shimstock and transillumination. Methods: Upper and lower full arch alginate impressions and vinyl polysiloxane centric interocclusal records were made of 12 subjects. Stone casts made from the alginate impressions and the interocclusal records were optically scanned. Three-dimensional virtual models of the dental arches and interocclusal records were constructed using the Virtual Dental Patient Software

Original languageEnglish (US)
Pages (from-to)528-534
Number of pages7
JournalJournal of Dentistry
Issue number6
StatePublished - Jun 2007

Bibliographical note

Funding Information:
This study was supported in part by USPHS Research Grant R01 DE-12225-05 from the National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD 20892, the Minnesota Dental Research Center for Biomaterials and Biomechanics, and 3M/ESPE.


  • 3D scanning
  • Interocclusal record
  • Occlusal contacts
  • Transillumination


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