Abstract
In this study we investigated the relation between anterior disc displacement (ADD)
and maxillomandibular morphology in skeletal anterior open bite with changes to the
mandibular condyle. Thirty female patients (60 joints) with both conditions were evaluated.
Magnetic resonance imaging of the temporomandibular joint (TMJ) was used to diagnose
both ADD and changes to the mandibular condyle (erosion, osteophyte, and deformity).
The relations among ADD, changes to the mandibular condyle, and maxillomandibular
morphology were examined statistically. Changes to the mandibular condyle had a higher
score than sym anterior open bite, the deviated side in asymmetric anterior open bite,
and the non-deviated side. The score for disc displacement on the non-deviated side
was lower than both the sym side and the deviated side. Unilateral changes to the
mandibular condyle and unilateral disc displacement were not apparent in sym anterior
open bite, but a unilateral non-displaced disc was seen only on the asymmetric side.
Mandibular condylar changes were significantly more common on the deviated, than on
the non-deviated, side. The SNB angle was significantly smaller, and the ANB, GZN,
and SN-mandibular plane angles were significantly larger in sym anterior open bite.
Overjet, ANB angle, GZN angle, and SN-MP angle were significantly larger, and the
SNB angle was significantly smaller, in the presence of ADD without reduction and
mandibular condylar deformity. We conclude that the prevalence of ADD without reduction
and changes to the mandibular condyle were related to mandibular asymmetry and mandibular
morphology in anterior open bite. This retrospective study suggests that ADD without
reduction and mandibular condylar bone changes may be related to the progression of
skeletal class II open bite and mandibular asymmetry in cases of skeletal open bite.
Keywords
To read this article in full you will need to make a payment
Purchase one-time access:
Academic & Personal: 24 hour online accessCorporate R&D Professionals: 24 hour online accessOne-time access price info
- For academic or personal research use, select 'Academic and Personal'
- For corporate R&D use, select 'Corporate R&D Professionals'
Subscribe:
Subscribe to British Journal of Oral and Maxillofacial SurgeryAlready a print subscriber? Claim online access
Already an online subscriber? Sign in
Register: Create an account
Institutional Access: Sign in to ScienceDirect
References
- Pediatric internal derangements of the temporomandibular joint: effect on facial development.Am J Orthod Dentofacial Orthop. 1993; 104: 51-59
- Magnetic resonance imaging of the temporomandibular joint in patients with skeletal open bite and subjects with no dentofacial abnormalities.Br J Oral Maxillofac Surg. 2010; 48: 459-461
- Internal derangements of the temporomandibular joint. Pathological variations.Arch Otolaryngol Head Neck Surg. 1989; 115: 469-477
- Incidence of anterior disc displacement without reduction of the temporomandibular joint in patients with dentofacial deformity.Int J Oral Maxillofac Surg. 2018; 47: 505-510
- Occlusion, orthodontic treatment, and temporomandibular disorders: a review.J Orofac Pain. 1995; 9: 73-90
- Magnetic resonance imaging assessment of positional relationship between the disk and condyle in asymptomatic young adult mandibular prognathism.Angle Orthod. 2003; 73: 550-555
- Magnetic resonance images of the temporomandibular joints of patients with acquired open bite.Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2005; 99: 734-742
- Comparison of skeletal and dental morphology in asymptomatic volunteers and symptomatic patients with unilateral disk displacement with reduction.Angle Orthod. 2004; 74: 684-689
- Factors related to the incidence of anterior disc displacement without reduction and bony changes of the temporomandibular joint in patient with anterior open bite.Oral Maxillofac Surg. 2014; 18: 397-401
- Factors related to the prevalence of anterior disc displacement without reduction and bony changes of the temporomandibular joint in patients with facial asymmetry.Oral Science International. 2013; 10: 65-69
- Cephalometric keys to internal derangement of temporomandibular joint in women with Class II malocclusions.Am J Orthod Dentofacial Orthop. 2004; 126: 486-495
- Surgical management of mandibular condylar hyperplasia type 1.Proc (Bayl Univ Med Cent). 2009; 22: 321-329
- A classification system for conditions causing condylar hyperplasia.J Oral Maxillofac Surg. 2014; 72: 567-595
- Lateral cephalometric analysis of skeletal patterns in patients with and without internal derangement of the temporomandibular joint.Am J Orthod Dentofacial Orthop. 1995; 107: 121-128
- Relationship between internal derangement of the temporomandibular joint and dentofacial morphology in women with anterior open bite.Am J Orthod Dentofacial Orthop. 2005; 128: 87-95
- Influences of occlusal and skeletal discrepancies on biomechanical environment in the TMJ during maximum clenching: an analytic approach with the finite element method.J Oral Rehabil. 2001; 28: 888-894
- Experimental induction of anterior disk displacement of the rabbit craniomandibular joint: an immuno-electron microscopic study of collagen and proteoglycan occurrence in the condylar cartilage.J Oral Pathol Med. 2003; 32: 176-184
- Analysis of magnetic resonance imaging characteristics and pain in temporomandibular joints with and without degenerative changes of the condyle.Int J Oral Maxillofac Surg. 2008; 37: 529-535
- Diagnostic accuracy of TMJ arthroscopy in correlation to histological findings.J Craniomaxillofac Surg. 1995; 23: 75-80
- Synovial membrane involvement in osteoarthritic temporomandibular joints: a light microscopic study.Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 1997; 83: 373-386
- Temporomandibular joint involvement in generalized osteo- arthritis and rheumatoid arthritis: a clinical, arthroscopic, histologic, and immunohistochemical study.Int J Oral Maxillofac Surg. 1997; 26: 10-16
- Inflammatory cell and cytokine patterns in patients with painful clicking and osteoarthritis in the temporomandibular joint.Int J Oral Maxillofac Surg. 2003; 32: 390-396
- Expression of cyclooxygenase-1 and -2 in IL-1beta-induced synovitis of the temporomandibular joint.J Oral Pathol Med. 2009; 38: 584-590
- Tumor necrosis factor-alpha as a biochemical marker of pain and outcome in temporomandibular joints with internal derangements.J Oral Maxillofac Surg. 1994; 52: 786-792
- Tumor necrosis factor in synovial fluid of patients with temporomandibular disorders.J Oral Maxillofac Surg. 1995; 53: 424-426
- Synovial fluid cytokines and proteinases as markers of temporomandibular joint disease.J Oral Maxillofac Surg. 1998; 56: 192-198
- Correlation of inflammatory cytokines with arthroscopic findings in patients with temporomandibular joint internal derangements.J Oral Maxillofac Surg. 1998; 56: 534-544
- Proinflammatory cytokines detectable in synovial fluids from patients with temporomandibular disorders.Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 1998; 85: 135-141
- Importance of proinflammatory cytokines in synovial fluid from 121 joints with temporomandibular disorders.Br J Oral Maxillofac Surg. 2002; 40: 418-423
- Comparison of cytokine level in synovial fluid between successful and unsuccessful cases in arthrocentesis of the temporomandibular joint.J Oral Maxillofac Surg. 2004; 62: 284-288
Article info
Publication history
Published online: July 09, 2020
Accepted:
May 15,
2020
Received:
August 30,
2019
Identification
Copyright
© 2020 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.
