Skip to main content

Kinematic comparison of different incisal tables used for anterior guidance reconstruction

international journal of stomatology & occlusion medicine volume 5, pages 155–163 (2012)Cite this article

Abstract

Purpose

Conventional articulators allow the user to adjust the inclination of the incisal table according to reconstruction principles. This fact suggests the adoption of an incisal table which exploits an appropriate curvature related to the individual incisal concavity by the reciprocal motion of the incisors. The aim of this study was to compare different incisal tables by a kinematic analysis of the protrusion motion.

Materials and methods

A parametric planar multibody model of the articulator (reference SL Gamma Dental) was developed by means of the implementation of the contact equations in the sagittal plane both for the condylar and incisal pin/tables guides. Through the use of the parametric model, the equations of contact and motion were mathematically shown for the different devices used in the present study.

Sequenzial incisal tables, individual anterior guidance unit and adjustable curvature were used for the comparison. All the tests were made using three shapes of condylar guidance (CI) with different sagittal condylar inclination (SCI). The numerical parameters of tables were processed and compared to the trajectory of the upper shape of the standard incisal by a mean deviation factor (MDF).

Results

The value of the MDF decreased from a mean value of 0.13 when a flat table was used to a mean value of 0.08 when an adjustable curvature device was used. In all cases the curvature was higher in the first part of the protrusion and progressively decreased during the protrusion path. The variation of the eminence angle may affect the inclination of the ideal incisal table but the curvature is imperceptibly affected by this parameter.

Conclusions

The comparison between three incisal tables showed a better matching of the adjustable curvature of anterior guidance showing full agreement with the results.

This is a preview of subscription content, access via your institution.

Access options

Buy single article

Instant access to the full article PDF.

USD 39.95

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12
Fig. 13
Fig. 14
Fig. 15
Fig. 16

References

  1. Celebic A, Alajbeg ZI, Kraljevic S, Valentic PM. Influence of condylar and incisal guidance ratio to the activity of anterior and posterior temporal muscle. Arch Oral Biol. 2007:52;142–8.

    PubMed  Article  Google Scholar 

  2. Slavicek R. Prinzipien der Okklusion. Inf Orthod Kieferorthop. 1982;3(4):171–212.

    Google Scholar 

  3. Slavicek R. The masticatory organ: function and dysfunction. 1st ed. Austria: Gamma Medizinisch – Wissenschaftliche Fortbildungs –AG; 2002.

    Google Scholar 

  4. Slavicek R. Die funktionellen Determinaten des Kauorgans. Muenchen: Zahnaerztlich-Medizinisches Schrifttum; 1984.

    Google Scholar 

  5. Starcke EN. The history of articulators: pursuing the evolution of the incisal-pin and guide, Part II. J Prosthodont. 2001;10(2):113–21.

    Google Scholar 

  6. Peck C, Murray G, Johnson C, Klineberg J. Trajectories of condylar points during working-side excursive movements of the mandible. J Prosthet Dent. 1999;81:444–52.

    PubMed  Article  CAS  Google Scholar 

  7. Ogawa T, Koyano K, Suetsugu T. The influence of anterior guidance and condylar guidance on mandibular protrusive movement. J Oral Rehabil. 1997;24:303–9.

    PubMed  Article  CAS  Google Scholar 

  8. Otake T, Mayanagi A, Tsuruta J, Nozawa K, Miura H, Hasegawa S. The role of posterior guidances under the altered anterior guidance. J Oral Rehabi. 2002;29:1196–205.

    Article  CAS  Google Scholar 

  9. Schuyler CH. The function and importance of incisal guidance in oral rehabilitation. J Prosthet Dent. 2001;86(6):219–39.

    PubMed  Article  CAS  Google Scholar 

  10. McHorris WH. The importance of anterior teeth. J.Gnathol. 1982;1:19–36.

    Google Scholar 

  11. Al-Nimri KS, Bataineh AB, Abo-Farha S. Functional occlusal patterns and their relationship to static occlusion. Angle Orthod. 2010;80(1):65–71.

    PubMed  Article  Google Scholar 

  12. Okano N, Baba K, Igarashi Y. Influence of altered occlusal guidance on masticatory muscle activity during clenching. J Oral Rehabil. 2007;34(9):679–84.

    PubMed  Article  CAS  Google Scholar 

  13. Kulmer S, Ruzika B, Niederwanger A, Moschen I. Incline and length of guiding elements in untreated naturally grown dentition. J Oral Rehabil. 1999;26:650–65.

    PubMed  Article  CAS  Google Scholar 

  14. Kohno S, Nakano M. The measurement and development of anterior guidance. J Prosthetic Dent. 1987;57(5):620–5.

    Article  CAS  Google Scholar 

  15. Broderson SP. Anterior guidance: the key to successful occlusal treatment. J Prosthet Dent. 1978;39:396–400.

    PubMed  Article  CAS  Google Scholar 

  16. Starcke EN. The history of articulators: “scribing” articulators: those with functionally generated custom guide controls, part I. J Prosthodont. 2004;13(2):118–28.

    Google Scholar 

  17. Starcke EN. The history of articulators: “scribing” articulators: those with functionally generated custom guide controls, part II. J Prosthodont. 2005;14(1):57–70.

    Google Scholar 

  18. Ogawa T, Koyano K, Suetsugo T. The relationship between inclination of the occlusal plane and jaw closing path. J Prosthet Dent. 1996;76(6):576–80.

    Article  Google Scholar 

  19. McHorris WH. Occlusion with particular emphasis on the functional and parafunctional role of the anterior teeth, part I. J Clin Orthod. 1979;13:606–20.

    PubMed  CAS  Google Scholar 

  20. McHorris WH. Occlusion with particular emphasis on the functional and parafunctional role of the anterior teeth, part II. J Clin Orthod. 1979;13:684–701.

    PubMed  CAS  Google Scholar 

  21. Morita O, Miyagawa Y, Lang BR. Determining the protrusive movement on arcon and nonarcon articulators by mathematical equation. J Prosthet Dent. 1982;47:330–55.

    PubMed  Article  CAS  Google Scholar 

  22. Katona TR. A mathematical model of mandibular protrusion. J Prosthet Dent. 1991;66:699–705.

    PubMed  Article  CAS  Google Scholar 

  23. Tasora A, Simeone P. Development of a new type of incisal table for prosthetic articulators. Int J Dent. 2010;10:1–5.

    Article  Google Scholar 

  24. Gerald F. Curves and surfaces for CAGD, a practical guide. 5th ed. Morgan-Kaufmann; 2002.

  25. Edwad JH. Computer-aided kinematics and dynamics of mechanical systems. Allyn and Bacon; 1989.

  26. Zoghby AE, Ré J-P, Perez C. Functional harmony between the sagittal condylar path inclination and the anterior guidance inclination. Int J Stomatol Occl Med. 2009;2:131–6.

    Article  Google Scholar 

Download references

Conflict of interest

The authors declare that there is no actual or potential conflict of interest in relation to this article.

Author information

Authors and Affiliations

  1. Department of Interdisciplinary Dentistry and Technology, University of Continuing Education/Danube-University Krems, Krems, Austria

    Piero Simeone & Rudolf Slavicek

Authors
  1. Piero Simeone
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Rudolf Slavicek
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Piero Simeone.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Simeone, P., Slavicek, R. Kinematic comparison of different incisal tables used for anterior guidance reconstruction. J. Stomat. Occ. Med. 5, 155–163 (2012). https://doi.org/10.1007/s12548-012-0057-4

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12548-012-0057-4

Keywords

  • Anterior guidance
  • Dental articulators
  • Comparative study
  • Movement
  • Occlusion
  • Simulation