Unilateral hemimandibular hyperactivity: Clinical features of a population of 128 patients

Vernucci, Roberto Antonio; Mazzoli, Valentina; Galluccio, Gabriella; Silvestri, Alessandro; Barbato, Ersilia

doi:10.1016/j.jcms.2018.04.028

Cited by 16 publications

(29 citation statements)

References 22 publications

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“…Occurrence of skeletal class III is most common. Quite often, skeletal and dental features include asymmetrical angle skeletal class III malocclusion, which corresponds with other studies such as that by López et al or Vernucci et al [8,14,16]. Clinically, a one-sided shifting chin is followed by overgrowth of the mandibular basis on the affected side, which also includes soft tissue changes in disproportion and asymmetry in mouth angle position and lip visualization.…”

Section: Introductionsupporting

confidence: 85%

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What Features on Routine Panoramic Radiographs Could Help Orthodontists to Estimate the Occurrence of Condylar Hyperplasia from Other Mandibular Asymmetries—Retrospective Analysis Study

Nelke¹,

Łuczak²,

Janeczek

et al. 2022

Symmetry

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Hemimandibular hyperplasia (HH) and elongation (HE) are the most common pathologies present in the mandible. Presented condylar hyperplasias have their own radiological and clinical features. In most cases, patients suffer from various forms of malocclusion. From a total of 150 asymmetrical jaw radiographs evaluated, 46 were evaluated and included in this study. A retrospective study on the data of 46 selected patients treated, diagnosed, and consulted from various forms of mandibular and skeletal asymmetry based on routine diagnostic panoramic radiographs evaluated typical and atypical radiological and anatomical symptoms of condylar hyperplasia. The presented evaluation focused on mandibular, maxillary, and other bones, in order to distinguish condylar hyperplasia from other forms of mandibular asymmetry. The degree of maxillary downward growth followed by the occurrence of an open bite on the affected side estimate the degree/presence or cessation of growth in the affected condyle. Mandibular asymmetry with incisor teeth inclination remains the most typical characteristic of condylar hyperplasia. Increased height of mandibular ramus differentiates between condylar hyperplasia and elongation, which also influences the position of the inferior alveolar nerve. Mentioned symptoms, described as the acronym “Go Moira!”, are useful in a quick and simple “glimpse of an eye” differential diagnostic approach. It is possible to quickly and accurately establish the first diagnosis simply by a careful evaluation of patients’ panoramic radiographs.

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Section: Introductionsupporting

confidence: 85%

“…When pathological growth is present, a condylectomy procedure is scheduled. Its scope and involvement in TMJ muscles, disc, or other structures depend on many factors, especially surgeons' preferences and the individuality of each case [3][4][5]13,16].…”

Section: Introductionmentioning

confidence: 99%

What Features on Routine Panoramic Radiographs Could Help Orthodontists to Estimate the Occurrence of Condylar Hyperplasia from Other Mandibular Asymmetries—Retrospective Analysis Study

Nelke¹,

Łuczak²,

Janeczek

et al. 2022

Symmetry

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“…The HC is performed routinely by some authors, while others avoid it due to possible functional problems afterwards 25 . The HC allows early intervention with minimal patient morbidity and may prevent supplementary surgery [26][27][28][29][30] . It provided a surprising simplification of the treatment in four (16%) of the present study patients, who were scheduled for supplementary OS in their initial treatment plan.…”

Section: Discussionmentioning

confidence: 99%

The need for secondary orthognathic surgery after high condylectomy in patients with active unilateral condylar hyperplasia

Aerden¹,

Verstraete²,

Politis³

2022

International Journal of Oral and Maxillofacial Surgery

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The need for secondary orthognathic surgery (OS) after a high condylectomy (HC) in patients with active unilateral condylar hyperplasia was assessed in 25 patients, reviewing patient characteristics and treatment planning. At 6-12 months after HC, 13 patients (52%) required secondary OS. The amount of mandibular dental midline shift before the HC (P = 0.037), and a dental crossbite that was present before the HC (P = 0.017) were significantly associated with the need for secondary OS. Overall, the mandibular dental midline coincided with the facial midline in eight patients (32%) at 2 weeks after HC. In 16% of the patients, no additional OS was needed despite this being the initial treatment plan. Additionally, the initially planned type of secondary OS was modified in six other patients. Early HC in skeletally immature patients provided very good results, both aesthetic and functional, with only two of them needing supplementary OS at 6-12 months after HC. The HC remains a valuable treatment in patients with active unilateral condylar hyperplasia, as it can eliminate the need for secondary OS and is very well tolerated by most patients.

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“…Mandibular condylar hyperplasia is a pathologic condition characterized by excessive growth of mandibular condyle, which results in progressive mandibular asymmetry [1,2]. Mandibular asymmetry can cause temporomandibular joint (TMJ) syndrome, occlusal disorder and aesthetic problems [3].…”

Section: Introductionmentioning

confidence: 99%

Reference values of mandibular condylar growth activity: a study of SUVmax with quantitative bone SPECT/CT

Lin¹,

Xue²,

Lin³

et al. 2021

Nuclear Medicine Communications

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Objective To assess the condylar growth activity (CGA) with quantitative bone single photon emission computed tomography/computed tomography (SPECT/CT) to establish reference values of maximum standardized uptake value (SUV max ) and cutoff values for identifying active unilateral condylar hyperplasia (UCH) in different ages. MethodsWe analyzed the CGA of 58 UCH patients and that of 125 volunteers as a control group by SUV max of quantitative bone SPECT/CT imaging. The SUV max and the uptake difference between bilateral condyles among different age groups were analyzed. SUV max cutoff values for detecting active condyle were calculated by receiver operating characteristic curve analysis.

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Unilateral hemimandibular hyperactivity: Clinical features of a population of 128 patients

Cited by 16 publications

References 22 publications

What Features on Routine Panoramic Radiographs Could Help Orthodontists to Estimate the Occurrence of Condylar Hyperplasia from Other Mandibular Asymmetries—Retrospective Analysis Study

What Features on Routine Panoramic Radiographs Could Help Orthodontists to Estimate the Occurrence of Condylar Hyperplasia from Other Mandibular Asymmetries—Retrospective Analysis Study

The need for secondary orthognathic surgery after high condylectomy in patients with active unilateral condylar hyperplasia

Reference values of mandibular condylar growth activity: a study of SUVmax with quantitative bone SPECT/CT

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