Biomechanics in Molar Control
Universidad de Antioquia
email: revista.odontologia@ucc.edu.co
Universidad CES
Odon.
email: revista.odontologia@ucc.edu.co
Inadequate molar control is one of the difficulties that arise during mechanical treatment. When molar control is handled efficiently, it facilitates precise control of forces and moments, which increases the effectiveness of biomechanics. Knowledge of 4 x 2, 6 x 2 partial systems and the transpalatal bar with its different forms of activation offer a number of advantages that make it possible to optimize orthodontic results. The aim of this article is to clarify concepts, specify possible treatment strategies and analyze the side effects that occur with these systems.
Krishnan V, Ambili R, Davidovitch Z, Murphy N. Gin- giva and orthodontic treatment. Semin Orthod. 2007; 13: 257-71.
Shroff B, Siegel SM. Treatment of patients with asym- metries using asymmetric mechanics. Semin Orthod. 1998; 4(3): 165-79.
Dowsing P, Sandler PJ. How to effectively use a 2 x 4 appliance. J Orthod. 2004; 31(3): 248-58.
Van Steenbergen E, Nanda R. Biomechanics of or- thodontic correction of dental asymmetries. Am J Or- thod Dentofacial Orthop. 1995; 107(6): 618-24.
Smith RJ, Burstone CJ. Mechanics of tooth movement. Am J Orthod. 1984; 85(4): 294-307.
Mulligan TF. Molar control. Part 1. J Clin Orthod. 2002; 36(1): 11-23.
Andersen KL, Pedersen EH, Melsen B. Material parame- ters and stress profiles within the periodontal ligament. Am J Orthod Dentofacial Orthop. 1991; 99(5): 427-40.
Tanne K, Sakuda M, Burstone CJ. Three-dimensional finite element analysis for stress in the periodontal tis- sue by orthodontic forces. Am J Orthod Dentofacial Orthop. 1987; 92(6): 499-505.
Melsen B, Cattaneo P, Dalstra M, Kraft D. The impor- tance of force levels in relation to tooth movement. Se- min Orthod. 2007; 13: 220-33.
Reitan K. Some factors determining the evaluation of forces in orthodontics. Am J Orthod. 1957; 43: 32-45.
Krishnan V, Davidovitch Z. Cellular, molecular, and tis- sue-level reactions to orthodontic force. Am J Orthod Dentofacial Orthop. 2006; 129(4): 469 e1-32.
Isaacson RJ, Lindauer SJ, Rubenstein LK. Activating a 2 x 4 appliance. Angle Orthod. 1993; 63(1): 17-24.
Burstone CJ. Rationale of the segmented arch. Am J Or- thod. 1962; 48: 805-22.
Burstone CJ, Koenig HA. Creative wire bending. The force system from step and V bends. Am J Orthod Den- tofacial Orthop. 1988; 93(1): 59-67.
Isaacson RJ, Rebellato J. Two-couple orthodontic appliance systems: torquing arches. Semin Orthod. 1995; 1(1): 31-6.
Proffit W. Contemporary orthodontics. 3a. ed. St Louis, Mo: Mosby; 2000.
Rebellato J. Two-couple orthodontic appliance systems: activations in the transverse dimension. Semin Orthod. 1995; 1(1): 37-43.
Burstone CJ, Koenig HA. Force systems from an ideal arch. Am J Orthod. 1974; 65(3): 270-89.
Burstone CR. Deep overbite correction by intrusion. Am J Orthod. 1977; 72(1): 1-22.
Mulligan TF. Understanding and applying wire-bracket angles. J Clin Orthod. 2008; 42(10): 563-73; quiz 95.
Mulligan TF. Common Sene Mechanics in Everyday Orthodontics. CSM: Phoenix; 2009.
Mulligan TF. Molar control. Part 5. J Clin Orthod. 2002; 36(5): 285-90.
Hart A, Taft L, Greenberg SN. The effectiveness of di- fferential moments in establishing and maintaining
anchorage. Am J Orthod Dentofacial Orthop. 1992; 102(5): 434-42.
Mulligan TF. Molar control. Part 4. J Clin Orthod. 2002; 36(4): 237-46.
Lamons F, Holmes C. The problem of the rotated maxillary first permanent molar. Am J Orthod. 1961; 47(4): 246-72.
Stoller A. The normal position of the maxillary first per- manent molar. Am J Orthod. 1954; 40(4): 259-71.
Andrews LF. The six keys to normal occlusion. Am J Orthod. 1972; 62(3): 296-309.
Carlon JA. Rotation of the 1st maxillary molar. Inf Or- thod Kieferorthop. 1973; 5(2): 137-62.
Mulligan TF. Molar control. Part 2. J Clin Orthod. 2002; 36(2): 67-78.
Mulligan TF. Molar control. Part 3. J Clin Orthod. 2002; 36(3): 147-58; quiz 6.
Cobo JM, Diaz B, de Carlos F. Maintaining anchora- ge with a combination Nance-Goshgarian transpalatal arch. J Clin Orthod. 1998; 32(11): 681.
Zachrisson BU. Clinical use of custom-made transpa- latal arches. Why and how. World J Orthod. 2004; 5(3): 260-7.
Ziegler P, Ingervall B. A clinical study of maxillary ca- nine retraction with a retraction spring and with sliding mechanics. Am J Orthod Dentofacial Orthop. 1989; 95(2): 99-106.
Stivaros N, Lowe C, Dandy N, Doherty B, Mandall NA. A randomized clinical trial to compare the Goshgarian and Nance palatal arch. Eur J Orthod. 2010; 32(2): 171-6.
Dahlquist A, Gebauer U, Ingervall B. The effect of a transpalatal arch for the correction of first molar rota- tion. Eur J Orthod. 1996; 18(3): 257-67.
Cetlin NM, Ten Hoeve A. Nonextraction treatment. J Clin Orthod. 1983; 17(6): 396-413.
Ten Hoeve A. Palatal bar and lip bumper in nonextrac- tion treatment. J Clin Orthod. 1985; 19(4): 272-91.
Mandurino M, Balducci L. Asymmetric distalization with a tma transpalatal arch. J Clin Orthod. 2001; 35(3): 174-8.
Kucher G, Weiland FJ. Goal-oriented positioning of upper second molars using the palatal intrusion tech- nique. Am J Orthod Dentofacial Orthop. 1996; 110(5): 466-8.
Wise JB, Magness WB, Powers JM. Maxillary molar ver- tical control with the use of transpalatal arches. Am J Orthod Dentofacial Orthop. 1994; 106(4): 403-8.
Chiba Y, Motoyoshi M, Namura S. Tongue pressure on loop of transpalatal arch during deglutition. Am J Or- thod Dentofacial Orthop. 2003; 123(1): 29-34.
Deberardinis M, Stretesky T, Sinha P, Nanda RS. Eva- luation of the vertical holding appliance in treatment of high-angle patients. Am J Orthod Dentofacial Orthop. 2000; 117(6): 700-5.
Ingervall B, Gollner P, Gebauer U, Frohlich K. A clinical investigation of the correction of unilateral first molar crossbite with a transpalatal arch. Am J Orthod Dento- facial Orthop. 1995; 107(4): 418-25.
Gollner P, Bantleon HP, Ingervall B. Force delivery from a transpalatal arch for the correction of unilateral first molar cross-bite. Eur J Orthod. 1993; 15(5): 411-20.
Burstone CJ, Koenig HA. Precision adjustment of the transpalatal lingual arch: computer arch form predeter- mination. Am J Orthod. 1981; 79(2): 115-33.
Yoshida N, Koga Y, Jost-Brinkmann PG, Kobayashi K. Clinical measurement of force systems upon activa- tion of transpalatal arch in the treatment of unilateral crossbite. Prog Orthod. 2003; 4(2): 50-60.
Rebellato J. Two-couple orthodontic appliance systems: transpalatal arches. Semin Orthod. 1995; 1(1): 44-54.
Gunduz E, Zachrisson BU, Honigl KD, Crismani AG, Bantleon HP. An improved transpalatal bar design. Part I. Comparison of moments and forces delivered by two bar designs for symmetrical molar derotation. Angle Orthod. 2003; 73(3): 239-43.
Ingervall B, Honigl KD, Bantleon HP. Moments and forces delivered by transpalatal arches for symmetrical first molar rotation. Eur J Orthod. 1996; 18(2): 131-9.
Eyüboğlu S, Bengi A, Gürton A, Akin E. Asymmetric Maxillary First Molar Distalization with the Transpala- tal Arch. Turk J Med Sci. 2004; 34(1): 59-66.
Haas S, Cisneros G. The Goshgarian Transpalatal bar: A Clinical and an Experimental Investigation. Semin Orthod. 2000; 6: 98-105.
Every single author of the articles has to declare that is an original unpublished work exclusively created by them, that it has not been submitted for simultaneous evaluation by another publication and that there is no impediment of any kind for concession of the rights provided for in the contract.
In this sense, the authors committed to await the result of the evaluation by the journal Revista Nacional de Odontologia before considering its submission to another medium; in case the response by that publication is positive, additionally, the authors committed to respond for any action involving claims, plagiarism or any other kind of claim that could be made by third parties.
At the same time, the authors have to declare that they are completely in agreement with the conditions presented in their work and that they cede all patrimonial rights. These rights involve reproduction, public communication, distribution, dissemination, transformation, making it available and all forms of exploitation of the work using any medium or procedure, during the term of the legal protection of the work and in every country in the world, to the Universidad Cooperativa de Colombia Press.
Most read articles by the same author(s)
- Juan Esteban Rendón Giraldo, Andrea Pedroza Garcés, Ortodontia and Passive Eruption , Revista Nacional de Odontología: Edición especial en Ortodoncia
