Condyle and fossa shape in Class II and Class III skeletal patterns: A morphometric tomographic study

Katsavrias, Elias G.; Halazonetis, Demetrios J.

doi:10.1016/j.ajodo.2004.05.024

Cited by 137 publications

(119 citation statements)

References 17 publications

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“…The few number of concentric condyles with reduced anterior articular spaces found in our study seems to be a common finding in different types of malocclusion patients. 7,12,21 These findings are relevant because patients with anteriorly displaced condyles do not require a different orthodontic approach. This clinical implication is important, since it has been reported that a more posterior relative position of the condyle in the mandibular fossa could be one of the reasons for anterior disc displacement, which frequently results in TMJ sounds.…”

Section: Discussionmentioning

confidence: 87%

“…6 In contrast, some studies 10,21 that also evaluated the condylar concentricity in Class II patients showed posteriorly positioned condyles; the former study 10 was based on MR images. Although not statistically different, our results for G2 showed 45.83% of the condyles posteriorly positioned, whereas only 25% of the Class I patients presented this condition (Table 3).…”

Section: Discussionmentioning

confidence: 99%

“…These numbers are in accordance with those of Kinzinger et al, 10 in regard to condyle morphology being convex (55%), round (25%), and angulated (20%) in Class II patients, based on coronal magnetic resonance (MR) images. Katzavrias et al 21 found predominantly oval (60.4%) and rounded (29.2%) condyles in sagittal slices. Likewise, Karlo et al 22 found rounded condylar forms in children, also observed in sagittal slices.…”

Section: Discussionmentioning

confidence: 99%

“…The understanding of articular characteristics related to malocclusions may have clinical implications that are important for diagnosis and orthodontic treatment plans, 19,21 which may change the condyle fossa relationship.…”

Section: Discussionmentioning

confidence: 99%

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Tomographic evaluation of the temporomandibular joint in malocclusion subjects: condylar morphology and position

et al. 2016

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The aim of this study was to investigate condyle concentricity and morphology, and their association with Class I and II malocclusions (Angle). The sample consisted of 49 individuals of both genders, between 11 and 35 years old, divided into two groups, G1: 26 patients with Class I malocclusion, and G2: 23 patients with Class II malocclusion, selected for orthodontic treatment. Evaluation of the condyle morphology and position was performed by the same previously calibrated examiner using cone-beam computed tomography (CBCT) images of the subjects. The CBCT scans were analyzed by means of a 3D program (Dolphin 11.5, Dolphin Imaging & Management Solutions, Chatsworth, CA, USA), with a 25% level of sensitivity. The images obtained from the coronal slices were employed for the condyle morphology analysis, which classified the condyle form as rounded, as flat or convex, and as triangular or angled. The sagittal slices were used to classify further the condyles as concentric and displaced anteriorly or posteriorly. A clinical examination was also performed, including TMJ and muscle palpation. The kappa test was used to evaluate investigator calibration; the Chi-square and paired t-tests were used for analysis. The convex and anteriorly positioned condyles were found most frequently, regardless of the type of malocclusion. No association was observed between the groups regarding condylar characteristics.

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Section: Discussionmentioning

confidence: 87%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Tomographic evaluation of the temporomandibular joint in malocclusion subjects: condylar morphology and position

et al. 2016

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“…5,6,7 Changes in morphology of mandibular condyles, articular fossa, and its associations with the existing malocclusion are broadly reported in the phase of permanent dentition; however, few studies in the literature report the relation of mandibular condyle dimensions and its association with UPXB, and a vast majority of studies assess the mandibular condyle position relative to the mandibular fossa. 8,9,10 Imaging exams have been used in the identification of structural and positional changes, which is similar to the bone contour of mandibular condyle and articular fossa, in the articular inter-relations and in the assessment of articular spaces considering the verification of possible changes in the beginning and end of the orthodontic treatment. 11 Images obtained by cone-beam computed tomography (CBCT) were shown to be a great method in the assessment of bone structures comprising the TMJ, mainly of the mandibular condyle and articular fossa.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of mandibular condyles in children with unilateral posterior crossbite

2015

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Abstract:The relationship of mandibular condyle dimensions and its association with unilateral posterior crossbite (UPXB) has been suggested in the literature. The purpose of this prospective study was to evaluate mandibular condyles on the left and right sides and between crossed and non-crossed sides in the sagittal and coronal planes, using cone-beam computed tomography (CBCT). Twenty CBCT images of 40 temporo mandibular joints (TMJs) in individuals in mixed dentition phase, which included 9 males (mean 7.9 years) and 11 females (mean 8.2 years), with unilateral posterior crossbite without premature contacts and functional mandibular shifts and with transverse maxillary deficiency. The criteria for sample exclusion included the presence of painful symptoms, facial trauma history, systemic diseases such as juvenile rheumatoid arthritis, mouth opening limitation (< 40 mm), congenital or genetic anomalies, and skeletal asymmetries that may result in TMJ disorders. Dimensional measurements of the condyles between the right and left sides and crossed and non-crossed sides in sagittal and coronal view were made. There was no significant difference between the measurements of the crossed and non-crossed sides in both sagittal and coronal view. These findings suggest that the presence of unilateral posterior crossbite in children with UPXB did not result in changes between the mandibular condyles in the right and left sides or between the crossed and non-crossed sides in the coronal or sagittal plane.

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Research on the correlation between the size of condyle and occlusion plane in skeletal Class II malocclusions

Lin

et al. 2022

Clinical & Exp Dental Res

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Objectives This study was designed to investigate the relationship between the morphological structure of condyle and occlusal plane in skeletal Class II malocclusions by imaging measurement. Materials and Methods This study included 65 skeletal Class II adult patients (18–35 years old) who met the criteria, and all were taken with cone beam computed tomography (CBCT) images (skeletal Class II high angle 38 cases, average angle 18 cases, and low angle nine cases). The statistical methods of mean standard deviation, Pearson correlation, and analysis of variance were used to study the correlation between the size of the condyle and occlusal plane in skeletal Class II malocclusion. Results The FMA and SN‐OP between the groups in skeletal Class II malocclusion are considered statistically significant, p < .05 high angle group > average angle group > low angle group, whereas there are significant correlations between FMA, FH‐OP, SN‐OP, and the medial–lateral diameter (MLD) of the condyle, p < .05, showing a negative correlation. The anteroposterior diameter of the condyle has no significant correlation with these angles, and the high‐angle group size is smaller than the other groups. Conclusion In patients with skeletal Class II high angle malocclusion, the MLD and anteroposterior diameters of condyle were smaller than those of average angle and low angle groups, and negatively correlated with the FMA and SN‐OP. That is the steeper occlusal plane, the smaller MLD of the condyle. It suggests whether orthodontists can promote the stability of the morphological structure of the condyle by changing the inclination of the occlusal plane during the orthodontic process.

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Condyle and fossa shape in Class II and Class III skeletal patterns: A morphometric tomographic study

Cited by 137 publications

References 17 publications

Tomographic evaluation of the temporomandibular joint in malocclusion subjects: condylar morphology and position

Tomographic evaluation of the temporomandibular joint in malocclusion subjects: condylar morphology and position

Evaluation of mandibular condyles in children with unilateral posterior crossbite

Research on the correlation between the size of condyle and occlusion plane in skeletal Class II malocclusions

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