U/L Dentures, wax set-up, using a "Precision Coordinator" Ar

U/L Dentures, wax set-up, using a "Precision Coordinator" Articulator.
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http://web.archive.org/web/20091013134659/http://www.db.uth.tmc.edu/Articulat...

"Terrell Precision Coordinator

Designed by: Wilfred Terrell and W. E. Van Dorn

Manufactured by: Precision Dental Mfg. Co., Pasadena , California

U.S. Patent No.: 2,199,896

Patent Date: June 7, 1938"
"The "Precision Coordinator" is an "arcon" type articulator. Coined by Gunner Bergstrom in the 1950's, "arcon" means that the condylar elements are on the mandibular member and the condylar paths are on the maxillary member of the articulator.

The condylar controls are essentially universal joints with curvilinear condylar paths that can be independently set in a vertical and horizontal direction. This feature that allows changing the relative positions of the condyles to each other is known as a "split axis."

The controlling mechanism for this articulator is the incisal guide that features twin parabolic cams that control both the horizontal (gothic arch) and vertical (protrusive) movements.

A milling device is built into the lower cast holder that produces a variable area of freedom in the centric position.

The movement can be varied from 0 .02 inches. It mills circularly in the molar region, elliptically in the premolar region and laterally in the incisor region."

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Category:

Science & Technology

Tags:

• Dentures
• Dentistry
• Occlusion
• Teeth
• TMJ
• Articulator
• Dental
• technology

[arykhoon]

yo the news in the backgrond is MADDDD JOKES

[oahjr]

-----------------yoeh? ;-)

[thatsmyfreakencar]

Thats an awsome articulator that mimics the patients mandibular jaw moments and I guess minimises the discrapancies in situ.

[oahjr]

Hi thatsmyfreakencar,

Thanks for recognizing this incomparable historical articulators fluid dynamics.

And the denture recipient loves his newly established functionality as well! ☺

Dentistry in recent times, so foolishly, as if lost in its own show me the scientific proof fog, →has been discounting the need for a sounder bio-mechanical technical model-involving restorative needs generally speaking!

oahjr

[ilsbadly]

Very impressive function, contouring is good but the wax... oh dear me the wax looks horrendous at least I am hoping its wax and not the final acrylic restoration, overall good job Sir (I think your a Sir please forgive me if not you have very masculine hands :} )

[ilsbadly]

Very impressive function, contouring is good but the wax... oh dear me the wax looks horrendous at least I am hoping its wax and not the final acrylic restoration, overall good job Sir (I think your a Sir please forgive me if not you have very masculine hands :} )

[05M4N]

Nice work oahjr, good retention on both the upper and lower. Nice news story too lol

[whatanabe888]

your work and this articulator is amazing o_O

[sandrostica]

Maybe it's a lingualised occlusion-concept ! If you look closely, you can see that the palatinal part of the upper molars are centered on the highest part (ridge)of the upper jaw, and that is allowed in this concept. The molars of the lower jaw are nicely centered on the jaw.

I think this setup is oke.

[funnygirl22222]

can someone give me this clip?i need for a project.pleasee

[epsonlu]

how does this instrument work with a facebow transfer??