Review and Classification Update: Unilateral condylar hyperplasia

Arora, Karandeep Singh; Bansal, Rahul; Mohapatra, Shreeyam; Pareek, Shubhangi

doi:10.1136/bcr-2018-227569

Cited by 25 publications

(32 citation statements)

References 8 publications

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“…Therefore, surgical reconstruction of the mandible is the therapy of choice whenever it is possible [123]. Unilateral mandibular condylar hyperplasia is a rare disease, where one condyle exhibits excessive growth [124][125][126]. A benign tumor of the long bones, osteochondroma, may also affect the mandibular condyle with similar consequences: Condylar growth leads to dislocation of the mandibular body in vertical and/or anterior direction.…”

Section: Acquired Structural and Functional Asymmetries Of The Head And Facementioning

confidence: 99%

Symmetry and Aesthetics in Dentistry

Runte

Dirksen

2021

Symmetry

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Animal bodies in general and faces in particular show mirror symmetry with respect to the median-sagittal plane, with exceptions rarely occurring. Bilateral symmetry to the median sagittal plane of the body also evolved very early. From an evolutionary point of view, it should therefore have fundamental advantages, e.g., more effective locomotion and chewing abilities. On the other hand, the recognition of bilaterally symmetric patterns is an important module in our visual perception. In particular, the recognition of faces with different spatial orientations and their identification is strongly related to the recognition of bilateral symmetry. Maxillofacial surgery and Dentistry affect effective masticatory function and perceived symmetry of the lower third of the face. Both disciplines have the ability to eliminate or mitigate asymmetries with respect to form and function. In our review, we will demonstrate symmetric structures from single teeth to the whole face. We will further describe different approaches to quantify cranial, facial and dental asymmetries by using either landmarks or 3D surface models. Severe facial asymmetries are usually caused by malformations such as hemifacial hyperplasia, injury or other diseases such as Noma or head and neck cancer. This could be an important sociobiological reason for a correlation between asymmetry and perceived disfigurement. The aim of our review is to show how facial symmetry and attractiveness are related and in what way dental and facial structures and the symmetry of their shape and color influence aesthetic perception. We will further demonstrate how modern technology can be used to improve symmetry in facial prostheses and maxillofacial surgery.

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Section: Acquired Structural and Functional Asymmetries Of The Head And Facementioning

confidence: 99%

Symmetry and Aesthetics in Dentistry

Runte

Dirksen

2021

Symmetry

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“…The mandibular ramus height and the condylar thickness in skeletal class II female patients were smaller than those in skeletal class I female patients, with no significant differences in these items in males. The growth of the mandibular ramus height ascending branch mainly depends on the apposition of the new bone in the mandibular condyle, which is the growth center of the mandible [28,29]. The reason might be that the mandibular 5 Scanning hypoplasia in females is more significantly affected by genetic factors, and condylar growth deficiency is responsible for this in males.…”

Section: The Clinical Significance Of Mandibular Morphologymentioning

confidence: 99%

Analysis of Three-Dimensional Morphological Differences in the Mandible between Skeletal Class I and Class II with CBCT Fixed-Point Measurement Method

Dong

Shi²,

Jia³

et al. 2021

Scanning

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This study was aimed at determining the three-dimensional differences in the mandible morphology between skeletal class I and II patients, at exploring the pathogenic mechanisms and morphological characteristics of skeletal class II, and at providing clinical references. The subjects were assigned to two groups according to the size of ANB angle: skeletal class I ( 2 ° < ANB angle < 5 ° ) and skeletal class II ( 5 ° < ANB angle < 8 ° ). After cone-beam computed tomography (CBCT) scanning, 31 landmarks and 25 measurement items were determined by In Vivo Dental 5.1 software (Anatomage, CA) for statistical analysis. The results were as follows: Co-Go, Go-Me, and CdM-CdD in skeletal class II cases were smaller than those in skeletal class I, and GoR-Me-GoL, GoR-Me-CoL, and, Ig-Men were larger than those in skeletal class I cases. In conclusion, there were significant differences in the three-dimensional morphology of the mandible between skeletal class I and class II patients. The vertical growth of the ramus, the horizontal growth of the mandibular body, and the condyle in skeletal class II patients were smaller than those in skeletal class I cases. In skeletal class II, the growth of the anterior part of the mandible in the vertical direction was larger than that in skeletal class I, and the shape of the mandible was more extended.

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“… 11 - 13 CH represents a disorder where the growth of the condyle continues beyond the normal growth period. 14 Previous literature has shown that CH often presents in the second or third decades of life and more commonly affects women than men. 2 , 5 Raijmakers et al, 12 conducted a meta-analysis in 2012, which revealed that women develop CH significantly more frequently (64%).…”

Section: Discussionmentioning

confidence: 99%

Unilateral Condylar Hyperplasia: Two Case Reports and a Literature Review

Senaidi¹,

Hashmi²,

Ismaili³

et al. 2021

Oman Med J

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Condylar hyperplasia (CH) is a rare idiopathic condition affecting the mandibular condyle where the growth of the condylar head and/or neck continues beyond the normal growth period. This disorder presents clinically as facial asymmetry and occlusal discrepancy. Here, we present two cases of CH managed at our centers during the period between 2012 and 2017 with a successful outcome. We highlight the clinical presentation, investigation, and surgical management and give a brief literature review.

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Review and Classification Update: Unilateral condylar hyperplasia

Cited by 25 publications

References 8 publications

Symmetry and Aesthetics in Dentistry

Symmetry and Aesthetics in Dentistry

Analysis of Three-Dimensional Morphological Differences in the Mandible between Skeletal Class I and Class II with CBCT Fixed-Point Measurement Method

Unilateral Condylar Hyperplasia: Two Case Reports and a Literature Review

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