The Influence of the Mandibular Gonial Angle on the Incidence of Mandibular Angle Fracture—A Radiomorphometric Study

Panneerselvam, Elavenil; Prasad, P.; Balasubramaniam, Sasikala; Somasundaram, Shanmugasundaram; Raja, Krishnakumar; Srinivasan, Dilip

doi:10.1016/j.joms.2016.08.016

Cited by 21 publications

(37 citation statements)

References 31 publications

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“…Thockmorton et al have found that the mean maximum bite force of orthognathic surgery candidates correlated only with cephalometric measurements that reflect the relative differences between anterior and posterior facial heights. More recently, Panneerselvam et al observed that subjects with high gonial angle presented 11.7 times higher risk of having MAF. The authors attributed this finding to the shorter ramus length and the thinning of the cortical bone due to low muscle activity.…”

Section: Discussionmentioning

confidence: 98%

“…In orthognathic surgery, these variables affect the stability of the bone plates and the occurrence of relapse . In addition, a high gonial angle has been shown to be a risk factor for MAF . Tweed's mandibular plane angle (MPa) is one of the cephalometric measurements that can be used to distinguish facial growth patterns.…”

Section: Introductionmentioning

confidence: 99%

“…11 In addition, a high gonial angle has been shown to be a risk factor for MAF. 12 Tweed's mandibular plane angle (MPa) is one of the cephalometric measurements that can be used to distinguish facial growth patterns. It is defined as the intersection of Frankfort horizontal (porion to orbitale) and mandibular planes (gonion to menton).…”

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confidence: 99%

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The effect of the mandibular plane angle on fracture line stability: An ex vivo experimental study

Said

Yildirimturk

Sirin

2019

Dental Traumatology

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Background/Aims Mandibular angle fractures fixated with plate osteosynthesis techniques have to withstand the effects of muscle attachments. Individual variations in the craniofacial morphology may alter the biomechanical resistance of the bone‐plate construct. The aim of the present study was to determine the influence of variations in the mandibular plane angle (MPa) on the biomechanical stability of sheep mandibular angle fractures (MAFs). Materials and Methods Sixty sheep hemi‐mandibles were used. The mandibles were positioned on a test jig that simulated low (15°, group L), normal (25°, group N), and high (35°, group H) MPa. Unfavorable MAFs were created with thin diamond cutting disks. One four‐hole, 9.0‐mm‐spacing, standard titanium miniplate of 2.0 mm thickness and 5.0‐mm‐long screws were inserted at the superior border of the alveolar bone in monoplanar orientation. Specimens were then subjected to vertical loads between 10 N and 150 N in a universal testing machine. The displacement values at each 10 N force increment and the load magnitude at which 3.0 mm displacement limit was reached were recorded. Results Starting from 40 N, the displacement values at each 10 N increment in the H group were significantly higher than those of the L and N groups until 150 N (P < 0.05). The force magnitude required to reach 3.0 mm of displacement in the H group was significantly lower than that for the L and N groups (P < 0.05 for each). Conclusions The one‐miniplate monoplanar fixation technique used in sheep MAF with high MPa is more likely to offer lower biomechanical resistance to the vertical forces applied over the molar region than do the normal and low MPa.

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Section: Discussionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

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The effect of the mandibular plane angle on fracture line stability: An ex vivo experimental study

Said

Yildirimturk

Sirin

2019

Dental Traumatology

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“…It is an important angle of the craniofacial complex, giving an indication about the symmetry of the facial skeleton [4]. Based on the GA, individuals can be categorised as having a high, normal, or low angle or vertical, normal, or horizontal growth [25]. On the other hand, it has been suggested that a high GA constitutes a risk of mandibular angle fracture [25].…”

Section: Introductionmentioning

confidence: 99%

“…Based on the GA, individuals can be categorised as having a high, normal, or low angle or vertical, normal, or horizontal growth [25]. On the other hand, it has been suggested that a high GA constitutes a risk of mandibular angle fracture [25].…”

Section: Introductionmentioning

confidence: 99%

Comparison of cone-beam computed tomography and panoramic radiography for mandibular morphometry

Taşsöker¹,

Akin²,

Kabakçı³

et al. 2019

Folia Morphol

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Background: The aim of this study was to compare the morphological differences in the mandible between patients with six age groups and to detect the correlation between these parameters on panoramic radiography (PR) and cone-beam computed tomography (CBCT). Materials and methods: A total of 121 subjects (50 males and 71 females) were included in the study and were divided into six age groups (10-19, 20-29, 30-39, 40-49, 50-59, and 60-69) on the basis of the chronological age. CBCT and PR methods were used to record the mandibular measurements for the same 121 patients. Differences between male and female mandibular morphometric measurements, between right and left side measurements, and differences in age subgroups compared by using independent samples t-test, paired samples t-test, and one-way ANOVA test, respectively. P < 0.05 value was considered statistically significant for all analysis. Results: Males mostly have higher mandibular measurement values. There were statistically significant differences between CBCT and PR measurements (p < 0.05). PR mostly showed higher values than CBCT measurements. Conclusions: Based on the fact that PRs showing significant differences from CBCT in the morphometric measurements made on mandible, it is recommended that forensic doctors and anthropologists consider this information in their age and gender prediction studies.

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Lateral Craniofacial Anatomy

Johnson

Fernandes

2020

Principles of Lateral Craniofacial Reconstruction

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The Influence of the Mandibular Gonial Angle on the Incidence of Mandibular Angle Fracture—A Radiomorphometric Study

Cited by 21 publications

References 31 publications

The effect of the mandibular plane angle on fracture line stability: An ex vivo experimental study

The effect of the mandibular plane angle on fracture line stability: An ex vivo experimental study

Comparison of cone-beam computed tomography and panoramic radiography for mandibular morphometry

Lateral Craniofacial Anatomy

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