Skeletal Class II open-bite malocclusion with idiopathic condylar resorption: a case report


Share / Export Citation / Email / Print / Text size:

Australasian Orthodontic Journal

Australian Society of Orthodontists

Subject: Dentistry, Orthodontics & Medicine


ISSN: 2207-7472
eISSN: 2207-7480





Volume / Issue / page

Volume 38 (2022)
Volume 37 (2021)
Volume 36 (2020)
Volume 35 (2019)
Volume 34 (2018)
Volume 33 (2017)
Volume 32 (2016)
Volume 31 (2015)
Related articles

VOLUME 34 , ISSUE 1 (May 2018) > List of articles

Skeletal Class II open-bite malocclusion with idiopathic condylar resorption: a case report

Ayaka Oka * / Hiroshi Kurosaka * / Kohtaro Yashiro * / Seiji Haraguchi * / Donghoon Lee * / Tomonao Aikawa * / Mikihiko Kogo * / Takashi Yamashiro *

Citation Information : Australasian Orthodontic Journal. Volume 34, Issue 1, Pages 85-93, DOI:

License : (CC BY 4.0)

Published Online: 20-July-2021



Background: The orthodontic treatment of patients with idiopathic condylar resorption (ICR) remains controversial. The effect of molar intrusion using temporary anchorage devices (TADs) and the consequential gradual counterclockwise rotation of the mandible in patients with ICR remains unclear.

Aims: To present the long-term treatment result of an adult skeletal Class II open-bite malocclusion with a history of ICR corrected by the combination of orthognathic surgery and TADs. Methods: After six months of occlusal splint therapy, a surgically-assisted intrusion of the maxillary molars was performed using TADs, followed by a bilateral sagittal split osteotomy (BSSO) and genioplasty.

Results: The five-year post-treatment records showed a good facial appearance, occlusion and mandibular/condylar position with no progress in the condylar resorption.

Conclusion: Based on a single case, this treatment option is an effective alternative to a bimaxillary osteotomy for patients presenting with ICR.

Content not available PDF Share



1. Wolford LM, Cardenas L. Idiopathic condylar resorption: diagnosis, treatment protocol, and outcomes. Am J Orthod Dentofacial Orthop 1999;116:667-77.

2. Huang YL, Pogrel MA, Kaban LB. Diagnosis and management of condylar resorption. J Oral Maxillofac Surg 1997;55:114-9; discussion 119-20.

3. Crawford JG, Stoelinga PJ, Blijdorp PA, Brouns JJ. Stability after reoperation for progressive condylar resorption after orthognathic surgery: report of seven cases. J Oral Maxillofac Surg 1994;52:460-6.

4. Catherine Z, Breton P, Bouletreau P. Condylar resorption after orthognathic surgery: A systematic review. Rev Stomatol Chir Maxillofac Chir Orale 2016;117:3-10.

5. Kobayashi T, Izumi N, Kojima T, Sakagami N, Saito I, Saito C. Progressive condylar resorption after mandibular advancement. Br J Oral Maxillofac Surg 2012;50:176-80.

6. Arnett GW, Milam SB, Gottesman L. Progressive mandibular retrusion-idiopathic condylar resorption. Part II. Am J Orthod Dentofacial Orthop 1996;110:117-27.

7. Tanaka E, Yamano E, Inubushi T, Kuroda S. Management of acquired open bite associated with temporomandibular joint osteoarthritis using miniscrew anchorage. Korean J Orthod 2012;42:144-54.

8. Kaku M, Koseki H, Kawazoe A, Abedini S, Kojima S, Motokawa M et al. Treatment of a case of skeletal class II malocclusion with temporomandibular joint disorder using miniscrew anchorage. Cranio 2011;29:155-63.

9. Song F, He S, Chen S. Temporomandibular disorders with skeletal open bite treated with stabilization splint and zygomatic miniplate anchorage: a case report. Angle Orthod 2015;85:335-47.

10. Kanno T, Mitsugi M, Furuki Y, Kozato S, Ayasaka N, Mori H. Corticotomy and compression osteogenesis in the posterior maxilla for treating severe anterior open bite. Int J Oral Maxillofac Surg 2007;36:354-7.

11. Akay MC, Aras A, Günbay T, Akyalçin S, Koyuncue BO. Enhanced effect of combined treatment with corticotomy and skeletal anchorage in open bite correction. J Oral Maxillofac Surg 2009;67:563-9.

12. Tuncer C, Ataç MS, Tuncer BB, Kaan E. Osteotomy assisted maxillary posterior impaction with miniplate anchorage. Angle Orthod 2008;78:737-44.

13. Arnett GW, Tamborello JA. Progressive Class II development: female idiopathic condylar resorption. Oral Maxillofac Surg Clin North Am 1990;2:699-716.

14. Ikeda K, Kawamura A. Assessment of optimal condylar position with limited cone-beam computed tomography. Am J Orthod Dentofacial Orthop 2009;135:495-501.

15. Gill DS, El Maaytah M, Naini FB. Risk factors for post-orthognathic condylar resorption: a review. World J Orthod 2008;9:21-5.

16. Ikeda K, Kawamura A, Ikeda R. Assessment of optimal condylar position in the coronal and axial planes with limited cone-beam computed tomography. J Prosthodont 2011;20:432-8.

17. Hwang SJ, Haers PE, Zimmermann A, Oechslin C, Seifert B, Sailer HF. Surgical risk factors for condylar resorption after orthognathic surgery. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2000;89:542-52.

18. Yang HJ, Hwang SJ. Bone mineral density and mandibular advancement as contributing factors for postoperative relapse after orthognathic surgery in patients with preoperative idiopathic condylar resorption: a prospective study with preliminary 1-year follow-up. Oral Surg Oral Med Oral Pathol Oral Radiol 2015;120:112-8.

19. Ellis E 3rd. Bimaxillary surgery using an intermediate splint to position the maxilla. J Oral Maxillofac Surg 1999;57:53-6.

20. Gil JN, Claus JD, Manfro R, Lima SM. Predictability of maxillary repositioning during bimaxillary surgery: accuracy of a new technique. Int J Oral Maxillofac Surg 2007;36:296-300.

21. You MS, Yang HJ, Hwang SJ. Postoperative functional remodeling of preoperative idiopathic condylar resorption: a case report. J Oral Maxillofac Surg 2011;69:1056-63.

22. Korioth TW, Hannam AG. Deformation of the human mandible during simulated tooth clenching. J Dent Res 1994;73:56-66.

23. Saka B, Petsch I, Hingst V, Härtel J. The influence of pre- and intraoperative positioning of the condyle in the centre of the articular fossa on the position of the disc in orthognathic surgery. A magnetic resonance study. Br J Oral Maxillofac Surg 2004;42:120-6.

24. Freihofer HP, Petreśević D. Late results after advancing the mandible by sagittal splitting of the rami. J Maxillofac Surg 1975;3:250-7.

25. Valladares-Neto J, Cevidanes LH, Rocha WC, Almeida GeA, Paiva JB, Rino-Neto J. TMJ response to mandibular advancement surgery: an overview of risk factors. J Appl Oral Sci 2014;22:2-14.

26. Gonçalves JR, Cassano DS, Wolford LM, Santos-Pinto A, Márquez IM. Postsurgical stability of counterclockwise maxillomandibular advancement surgery: affect of articular disc repositioning. J Oral Maxillofac Surg 2008;66:724-38.