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22 prosthodontic section DENTAL TECHNOLOGY, JULY-SEPTEMBER 2022
FIG 11 FIG 12
rates a curved path compensated Bennett guide “c” (Figure
13), meaning the articulator moves more like the patient’s
jaw movements which may reduce positive errors for less
adjustments in lateral chewing movements and still allow for
good anatomy. 9,10
SUMMARY
A.Using the Kois DFA or doing a Standard Functional
Mounting to relate the teeth to an average anatomical axis
may reduce positive errors for less adjustments in opening
and closing movements of the Axis.
B. Taking an interocclusal record at the Vertical Dimension of
Occlusion you want to be restoring to may reduce positive
errors for less adjustments of the Bite.
C. It is recommended to set the articulator with a 1.5mm
o
Bennett (Figure 13) movement and a 25 protrusive
pathway to produce negative errors for less adjustments
of incising and lateral movements of chewing.
FIG 13
References Dentistry Vol. 114, Issue 3, September
2015: pp 432-439
1. Clapp GW. The importance of the records
of the opening and closing movements. 7. Thompson, Geoffrey A., Nick, Casey,
In: Prosthetic Articulation. Part V- The Francisco, Paul, Lux, Laura, Wiens,
Selection of an Articulator, The Dentists Jonathan P.: Comparison of two arbitrary
Supply Co. 1914. pp 141-165 cast transfer systems with a kinematic
facebow for mounting a maxillary cast
2. Teteruck WR, Lundeen HC. The Accuracy on a semi adjustable articulator. In: J
of an Ear Face-Bow. In: Journal of Prosthet Dent. 2021 Mar 15; S0022-
Prosthetic Dentistry. Vol. 16, No. 6, Nov- 3913(21)00002-0. doi: 10.1016/j. pros-
Dec 1966. Pp 1039-1046 dent.2020.12.023. Online ahead of print
3. Kois JC, Kois DE, Chaiyabutr Y: Occlusal 8. Lundeen, Harry C., D.D.S., Gibbs,
Errors Generated at the Maxillary Incisal Charles H., Ph.D.: Jaw movements and
Edge Position Related to Discrepancies in forces during chewing and swallowing
the Arbitrary Horizontal Axis Location and their clinical significance, In:
and to the Thickness of the Interocclusal Advances in Occlusion, Chapter 1, John
Record. In: J. Prosth. Dentistry Vol. 110, Wright Publishing, 1982, pp 2-32
No. 5, November 2013: pp 414-419
9. Lee, R.L., Jaw Movements Engraved in
4. Monson, GS. Applied Mechanics to the Solid Plastic for Articulator Controls, Part
Theory of Mandibular Movements. In: D. I. Recording Apparatus. J. Pros. Dent.
Cosmos. 74:1039-1053, 1932. 22:209, 1969
5. Bonwill, WG. The Scientifi c Articulation 10. Lee, R.L., Jaw Movements Engraved in
of the Human Teeth as Founded on Solid Plastic for Articulator Controls, Part
Geometrical, Mathematical, and II. Transfer Apparatus. J. Pros. Dent.
Mechanical Laws. In: D. Item Interest 22:513, 1969
21:617-636; 873-880, 1899.
11. The Glossary of Prosthodontic Terms:
6. Lux, Laura H., Thompson, Geoffrey A., Ninth Edition. Journal of Prosthetic
Waliszewski, Kenneth J., Ziebert, Gerald J.: Dentistry May 2017.
Comparison of the Kois Dento-Facial
Analyzer System with an ear bow for
mounting a maxillary cast. In: J. Prosth.

