Document Detail

An in vitro evaluation of the reliability and validity of an electronic pantograph by testing with five different articulators.
MedLine Citation:
PMID:  15232566     Owner:  NLM     Status:  MEDLINE    
STATEMENT OF PROBLEM: The degree of reliability and validity of a new electronic pantographic instrument, the Cadiax Compact, has not been established. PURPOSE: The purpose of this study was to test the reliability and validity of the electronic pantograph in calculating condylar settings for 5 different articulators (Denar D5A, Denar Mark II, Whip Mix 8500, Hanau Modular, and Panadent PCH). MATERIAL AND METHODS: Pantograph sensors were mounted to each articulator with custom-made mounting devices. Border movements were made on each articulator with known condylar settings to produce readings at 3-, 5-, and 10-mm condylotrack distances. The condylar settings investigated included horizontal condylar inclination (HCI), immediate mandibular lateral translation (IMLT), progressive mandibular lateral translation (PMLT), top wall, and rear wall. Reliability was assessed by the relative size of standard deviations. Validity was tested with 1-way analysis of variance and the Tukey HSD Test (alpha=.05). RESULTS: The reliability readings for the condylar settings at the 10-mm condylotrack distance, for the most part, were more consistent than those at the 5-mm distance, which, in turn, were more consistent than those at the 3-mm distance. When there were exceptions to this trend, the differences in standard deviations were very small (0.006 mm for IMLT, 0.03 and 0.12 degrees for HCI). When comparing validity between the condylotrack distances, the smallest deviations, in general, were found at the 10-mm distance, the next smallest at the 5-mm distance, and the largest, at the 3-mm distance for HCI. For PMLT, in general, the 10-mm and 5-mm deviations were smaller than the 3-mm deviation. For IMLT, there was no significant difference between the 3-, 5-, and 10-mm deviations. In analyzing validity between the articulators, the smallest deviations from the preset values, in general, were found with the Denar Mark II. CONCLUSION: The standard deviations for assessing reliability and the mean deviations for assessing validity were both relatively small in comparison to the average values of the condylar determinants. Therefore, the electronic pantograph was determined to be both reliable and valid.
Willy S W Chang; Elaine Romberg; Carl F Driscoll; Michael J Tabacco
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Publication Detail:
Type:  Comparative Study; Evaluation Studies; Journal Article; Validation Studies    
Journal Detail:
Title:  The Journal of prosthetic dentistry     Volume:  92     ISSN:  0022-3913     ISO Abbreviation:  J Prosthet Dent     Publication Date:  2004 Jul 
Date Detail:
Created Date:  2004-07-02     Completed Date:  2004-09-09     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0376364     Medline TA:  J Prosthet Dent     Country:  United States    
Other Details:
Languages:  eng     Pagination:  83-9     Citation Subset:  D; IM    
Department of Restorative Dentistry, Baltimore College of Dental Surgery, Dental School, University of Maryland, 21201, USA.
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MeSH Terms
Analysis of Variance
Dental Articulators*
Dental Occlusion, Centric
Electronics, Medical
Jaw Relation Record / instrumentation*
Mandible / physiology
Mandibular Condyle
Reproducibility of Results
Statistics, Nonparametric

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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