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Chair side measuring instrument for quantification of the extent of a transverse maxillary occlusal plane cant

  • Naini, Farhad B. (Kingston and St George's Hospitals and St George's Medical School) ;
  • Messiha, Ashraf (Maxillofacial Unit, St George's Hospital Medical School) ;
  • Gill, Daljit S. (Department of Orthodontics, Great Ormond Street Hospital & Eastman Dental Hospital)
  • 투고 : 2019.03.27
  • 심사 : 2019.04.15
  • 발행 : 2019.12.31

초록

Background: Treatment planning the correction of a transverse maxillary occlusal plane cant often involves a degree of qualitative "eyeballing", with the attendant possibility of error in the estimated judgement. A simple chair side technique permits quantification of the extent of asymmetry and thereby quantitative measurements for the correction of the occlusal plane cant. Methods: A measuring instrument may be constructed by soldering the edge of a stainless steel dental ruler at 90° to the flat surface of a similar ruler. With the patient either standing in natural head position, or alternatively seated upright in the dental chair, and a dental photographic retractor in situ, the flat under-surface of the horizontal part of this measuring instrument is placed on a unilateral segment of a bilateral structure, e.g. the higher maxillary canine orthodontic bracket hook. The vertical ruler is held next to the contralateral canine tooth, and the vertical distance measured directly from the canine bracket to the flat under-surface of the horizontal part of the measuring instrument. Results: This vertical distance quantifies the overall extent of movement required to level the maxillary occlusal plane. Conclusions: This measuring instrument and simple chair side technique helps to quantify the overall extent of surgical levelling required and may be a useful additional technique in our clinical diagnostic armamentarium.

키워드

참고문헌

  1. Naini FB (2011) Facial symmetry and asymmetry. In: Naini FB. Facial aesthetics: concepts and clinical diagnosis. Wiley-Blackwell, Oxford
  2. Naini FB, Manisali M, Gill DS (2017) Asymmetries of the maxilla and mandible. In: Naini FB, Gill DS (eds) Orthognathic surgery: principles, planning and practice. Wiley-Blackwell, Oxford
  3. Quevedo L, Ruiz JV, Quevedo C (2011) Using a clinical protocol for orthognathic surgery and assessing a 3-dimensional virtual approach: current therapy. J Oral Maxillofac Surg 69:623-637 https://doi.org/10.1016/j.joms.2010.11.009
  4. Xia JJ, Gateno J, Teichgraeber JF (2009) New clinical protocol to evaluate craniomaxillofacial deformity and plan surgical correction. J Oral Maxillofac Surg 67:2093-2106 https://doi.org/10.1016/j.joms.2009.04.057
  5. Barbenel JC, Paul PE, Khambay BS, Walker FS, Moos KF, Ayoub AF (2010) Errors in orthognathic surgery planning: the effect of inaccurate study model orientation. Int J Oral Maxillofac Surg 39:1103-1108 https://doi.org/10.1016/j.ijom.2010.07.004
  6. Zhao L, Patel PK, Cohen M (2012) Application of virtual surgical planning with computer assisted design and manufacturing technology to craniomaxillo-facial surgery. Arch Plastic Surg 39:309-316 https://doi.org/10.5999/aps.2012.39.4.309

피인용 문헌

  1. Occlusal Cant and Its Challenges - A Review vol.10, pp.33, 2019, https://doi.org/10.14260/jemds/2021/577