J Korean Dent Sci.  2021 Jun;14(1):26-31. 10.5856/JKDS.2021.14.1.26.

Correlation between Cephalometric Reference Planes for Clinical Application to Articulators

• Lee SH
• Yang IH
• Kim TW
• Yeo nSL

• KMID: 2525892
• DOI: http://doi.org/10.5856/JKDS.2021.14.1.26

Abstract

Purpose
This study aimed to find a correlation between the occlusal plane and two reference planes that are frequently used in semi-adjustable articulators.
Materials and Methods
Sixty-two males and fifty females with normal articulation were recruited and the lateral cephalograms of these patients were taken. The angles between the Frankfort horizontal (FH) and the occlusal planes, the angles between the gnathologic and the occlusal planes, and the angles between the FH and gnathologic planes were measured on the lateral cephalograms. Result: The mean angles between the FH and the occlusal planes was 8.29°±3.62°, with 8.88°±3.09° and 7.63°±4.10° for male and female patients, respectively. The mean angles between the gnathologic and the occlusal planes was 2.77°±3.62°, and the angle between the FH and the gnathologic planes was 5.52°±3.62°. No significant differences were found in the measured angles between the male and female patients (P>0.05).
Conclusion
Different guidance angles may be applied to articulators for prosthodontic restoration, depending on the reference planes that the articulators use.

Keyword

Cephalometry; Dental occlusion; Frankfort horizontal plane; Gnathologic plane