INDIVIDUALIZED IDEAL OCCLUSAL PLANE FOR ORTHOGNATHIC SURGERY AND ORTHODONTIC TREATMENT (PRELIMINARY STUDY)

악교정수술 및 교정치료를 위한 개별화된 이상적인 교합평면에 관한 연구

  • Published : 2009.03.31

Abstract

Introduction: To correct abnormal occlusal plane by orthognathic surgery, we need to have clear criteria for therapeutic occlusal plane. Authors introduced the concept of individualized ideal occlusal plane(Y-plane), which is determined by the size and form of the mandible, and the ideal incisor tip considering upper and lower lip. Authors studied the following to verify if the actual occlusal plane of the patients with optimal jaw relationship corresponds with the individualized ideal occlusal plane. Patients: We reviewed 44 patients who have normal occlusion visitied in the Dept. of orthodontics, Pundang CHA hospital. Methods: We evaluated if there are agreement between individualized ideal occlusal plane(Y plane) and occlusal plane of actual patients. And we confirmed if tested group has a normal face by measuring FABA, FMA, AB-LOP. Results: There were no significant differences of FABA, FMA, AB-LOP, Mo-Y plane between male and female. FABA, FMA and AB-LOP were included in the normal value. Average distance of Mo-Y plane was $0.75{\pm}0.78mm$. Conclusion: Individualized ideal occlusal plane may be applied to orthognathic surgery.

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References

  1. Neal JJ, West CR, Lovius BB : The stability of the lower labial segment following surgical correction of Class III skeletal discrepancy. Br J Oral Maxillofac Surg 26 : 190, 1988 https://doi.org/10.1016/0266-4356(88)90162-3
  2. Wolford LM, Chemello PD, Hiliard F : Occlusal plane alteration in orthognathic surgery, Part I: Effects on function and esthetics. Am J orthod Dentofac Orthop 106 : 304, 1994 https://doi.org/10.1016/S0889-5406(94)70051-6
  3. Wolford LM, Chemello PD, Buschang PH : Occlusal plane alteration in orthognathic surgery, Part II: Long-term stability of results. Am J Orthod Dentofac Orthop 106 : 434, 1994 https://doi.org/10.1016/S0889-5406(94)70066-4
  4. Bonwill WGA : The science of the articulation of artificial dentures. Dent cosmos 20 : 321, 1878
  5. Monson GS : Applied mechanics to the theory of mandibular movement. Dental Cosmos 1039, 1932
  6. Spee FG : The gliding path of the mandible along the skull (English Translation : JADA 100 : 670, 1980) https://doi.org/10.14219/jada.archive.1980.0239
  7. Sang-duck Yang : Evaluation and establishment of occlusal plane in clinical orthodontics. Korean Foundation for Gnatho Orthodontic Research 5 : 5, 2001
  8. Downs WB : Variations in facial relationships: Their significance in treatment and prognosis. Am J Orthod 34 : 812, 1948 https://doi.org/10.1016/0002-9416(48)90015-3
  9. Steiner CC : Cephalometrics for you and me. Am J Orthod 39 : 729, 1953
  10. Goldman S: The variations in skeletal and denture patterns in excellent adult facial types. Angle Orthod 29, 1959
  11. Reyneke JP, Evans WG : Surgical manipulation of the occlusal plane. Int J Adult Orthodon Orthognath Surg 5 : 99, 1990
  12. Epker BN, Wesberg GA : Mechanisms of early skeletal relapse following surgical advancement of the mandible. British J Oral Surg 20 : 175, 1982 https://doi.org/10.1016/S0007-117X(82)80035-8
  13. Delaire J, Schendel SA : An arthitectural and structural craniofacial analysis: A new lateral cephalometric analysis. Oral Surg Oral Med Oral Pathol 52 : 226, 1981 https://doi.org/10.1016/0030-4220(81)90252-8
  14. Willen van den Braber, Hilbert van der Glas, Andries van der Bilt Frederik Bosman : Masticatory function in retrognathic patients, before and after mandibular advancement surgery. J oral Maxillofac Surg 62 : 549, 2004 https://doi.org/10.1016/j.joms.2003.06.016