JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES) ›› 2014, Vol. 52 ›› Issue (10): 61-65,71.doi: 10.6040/j.issn.1671-7554.0.2014.178

Previous Articles     Next Articles

Three dimensional registration method to evaluate the upper airway morphologic changes after mandibular setback surgery

MICHAEL M. P. NG'WANAMASELE1, HAN Yanzhao1, ZHANG Fenghe2, TONG Dongdong2, LI Liang1, CHENG Huijuan1, WANG Chunling1, LIU Dongxu1   

  1. 1. Department of Orthodontics, Stomatology Hospital of Shandong University, Jinan 250012, Shandong, China;
    2. Department of Oral and Maxillofacial Surgery, Stomatology Hospital of Shandong University, Jinan 250012, Shandong, China
  • Received:2014-03-31 Revised:2014-09-25 Online:2014-10-10 Published:2014-10-10

PDF (PC)

133

Abstract: Objective To introduce a method of three dimensional (3D) registration based on the zygomatic arch to evaluate upper airway morphologic changes after mandibular setback surgery. Methods One male patient aged 24 years who underwent mandibular setback surgery to correct Angle class Ⅲ malocclusion was involved in this study. CBCT scans were taken before start of treatment (T0), 1 week after treatment (T1) and 1 year and 5 months after treatment (T2). The 3D models of skull and upper airway were constructed from the CBCT scans and exported as stereolithography by mimics16.0 software. The stereolithoghraphy was registered by selecting landmark points on either side of each 3D models on the zygoma, zygomatic arch and frontal process of the maxilla. After that, anteroposterior length, the largest transverse width and cross-section area were measured in the axial window in four planes, and thevolume was automatically computed in two regions of oropharynx and the laryngopharynx. The distances of mandibular retrusion and relapse were measured between the B-points located along the contour lines of 3D models. Results A notable decrease in upper airway dimensions at T1 and a slight relapse at T2 was observed. The distance of mandibular B-point at T1 and T0 was large. The distance of mandibular B-point between T2 and T0 is slightly smaller than the distance between T1 and T0. Conclusion The three dimensional registration method based on the zygomatic arch can evaluate upper airway morphologic changes after mandibular setback surgery.

Key words: Mandibular setback surgery, Upper airway morphology, Cone beam CT, Three dimensional registration

CLC Number: 

  • R783.5
[1] Graber L W, Vanarsdall Jr R L, Vig K W L. Orthodontics: current principles and techniques[M]. Philadelphia, Pennsylvania, USA, Elsevier Health Sciences, 2011: 157-178.
[2] Lenza M G, Lenza M M O, Dalstra M, et al. An analysis of different approaches to the assessment of upper airway morphology: a CBCT study[J]. Orthod Craniofac Res, 2010, 13(2): 96-105.
[3] Aboudara C, Nielsen I B, Huang J C, et al. Comparison of airway space with conventional lateral headfilms and 3-dimensional reconstruction from cone-beam computed tomography[J]. Am J Orthodontics Dentofacial Orthop, 2009, 135(4): 468-479.
[4] 胡海峰, 张丽, 陈志强, 等. 锥束 CT 技术在口腔临床中的应用[J]. CT 理论与应用研究, 2009, 18(3): 30-37.
[5] 王丽颖, 金作林. 锥形束 CT 及其在口腔正畸学中的应用[J]. 国际口腔医学杂志, 2013, 40(2): 181-184. WANG Liying, JIN Zuolin.The application of cone beam computer tomography in orthodontics[J]. International Journal of Stomatology, 2013, 40(2)181-184.
[6] Grauer D, Cevidanes L S H, Styner M A, et al. Pharyngeal airway volume and shape from cone-beam computed tomography: relationship to facial[J]. Am J Orthod Dentofacial Orthop, 2009, 136(6): 805-814.
[7] Achilleos S, Krogstad O, Lyberg T. Surgical mandibular setback and changes in uvuloglossopharyngeal morphology and head posture: a short-and long-term cephalometric study in males[J]. Eur J Orthod, 2000, 22(4): 383-394.
[8] Chen F, Terada K, Hua Y, et al. Effects of bimaxillary surgery and mandibular setback surgery on pharyngeal airway measurements in patients with Class Ⅲ skeletal deformities[J]. Am J Orthod Dentofacial Orthop, 2007, 131(3): 372-377.
[9] Nakagawa F, Ono T, Ishiwata Y, et al. Morphologic changes in the upper airway structure following surgical correction of mandibular prognathism[J]. Int J Adult Orthodon Orthognath Surg, 1997, 13(4): 299-306.
[10] Turnbull N R, Battagel J M. The effects of orthognathic surgery on pharyngeal airway dimensions and quality of sleep[J]. J Orthod, 2000, 27(3): 235-247.
[11] Holmberg H, Linder-Aronson S. Cephalometric radiographs as a means of evaluating the capacity of the nasal and nasopharyngeal airway[J]. Am J Orthod, 1979, 76(5): 479-490.
[12] Tselnik M, Pogrel M A. Assessment of the pharyngeal airway space after mandibular setback surgery[J]. J Oral Maxillofac Surg, 2000, 58(3): 282-285.
[13] Park S B, Kim Y I, Son W S, et al. Cone-beam computed tomography evaluation of short-and long-term airway change and stability after orthognathic surgery in patients with Class Ⅲ skeletal deformities: bimaxillary surgery and mandibular setback surgery[J]. Int J Oral Maxillofac Surg, 2012, 41(1): 87-93.
[14] Muto T, Yamazaki A, Takeda S, et al. Accuracy of predicting the pharyngeal airway space on the cephalogram after mandibular setback surgery[J]. J Oral Maxillofac Surg, 2008, 66(6): 1099-1103.
[15] Chen F, Terada K, Hanada K, et al. Predicting the pharyngeal airway space after mandibular setback surgery[J]. J Oral Maxillofac Surg, 2005, 63(10): 1509-1514.
[16] Nada R M, Maal T J J, Breuning K H, et al. Accuracy and reproducibility of voxel based superimposition of cone beam computed tomography models on the anterior cranial base and the zygomatic arches[J]. PloS one, 2011, 6(2): e16520. doi: 10.1371/journal.pone.0016520.
[17] De Vos W, Casselman J, Swennen G R J. Cone-beam computerized tomography (CBCT) imaging of the oral and maxillofacial region: a systematic review of the literature[J]. Int J Oral Maxillofac Surg, 2009, 38(6): 609-625.
[18] Eggensperger N, Smolka W, Iizuka T. Long-term changes of hyoid bone position and pharyngeal airway size following mandibular setback by sagittal split ramus osteotomy[J]. J Craniomaxillofac Surg, 2005, 33(2): 111-117.
[19] Liukkonen M, Vhtalo K, Peltomki T, et al. Effect of mandibular setback surgery on the posterior airway size[J]. Int J Adult Orthodon Orthognath Surg, 2001, 17(1): 41-46.
[1] LIU Pan-pan1,2, XIE Zhi-wei1,2, LI Guo-ju2,3, GUO Jing1,2. Anthropometric analysis of the morphology of mandibular body in adults of Han nationality with average skeletal pattern [J]. JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES), 2013, 51(12): 95-99.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
Copyright 2018 © Editorial office of Journal of Shandong University (Health Sciences)
Supported by Beijing Magtech Co.Ltd