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NEY Articulator

Designed by: Anthony J. DePietro

Manufactured by: J. M. Ney Company, Hartford , Connecticut

U.S. Patent No.: 3,019,530; 3,160,955

Patent Date: February 6, 1962; December 15, 1964

 
 

The NEY Articulator can be classified as a fully adjustable instrument. It embodies both the “arcon” and intercondylar distance adjustability features. The terminal hinge axis is recorded to mount the casts and check bite records (centric, protrusive and right and left lateral) are used to set the controls. The NEY offers a choice of metal or plastic condylar guides. The plastic condylar guides come in a variety of curvatures. The plastic incisal guide can be utilized to generate custom incisal guidance. The metal incisal guide features lateral wings that are parabolic (and not flat) to simulate the curves of the mandibular teeth. The metal incisal guide also incorporates an adjustable vertical pin, which, when raised, provides an area of freedom at centric position. The incisal pin is designed to be concentric with the arc of closure of the articulator. The plastic condylar guides can be adjusted for an immediate side shift, but it is necessary to cut a 0.5 mm dimple at the centric point to maintain centric relation. The Bennett guide is located in the condylar elements. The NEY articulator was manufactured for about four years.

 
Click on the still photographs below to enlarge the image.
     

Lateral view, closed position. This model had the metal condylar and incisal controls.

 

The NEY has no hinge mechanism to maintain the maxillary and mandibular members in place.

  Detail of a metal condylar guide.   Detail of the metal parabolic incisal guide and incisal pin
 

Dr. Edgar N. Starcke's articles in the Journal of Prosthodontics have more information on the history of articulators. 

Please note that patent information page requires the FREE download of AlternaTiff plug-in from the Internet. Simply click on the Patent number and this will link you directly to the first page of the Patent. The Patent can be copied, but only one page at a time.

 
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