Relationship between the Condylion–Gonion–Menton Angle and Dentoalveolar Heights

Valletta, Rosa; Rongo, Roberto; Madariaga, Ada Carolina Pango; Baiano, Roberta; Spagnuolo, Gianrico; D’Antò, Vincenzo

doi:10.3390/ijerph17093309

Cited by 11 publications

(12 citation statements)

References 41 publications

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“…Mølsted et al [ 8] also presented with similar findings in a multicenter examination. The Gonion-Gnation angleis a very useful diagnostic parameter to consider beforestarting an orthodontic treatment because it evaluates the facial pattern of a subject and reflects thevariability of the mandibular plane in relation to the anterior cranial base [9] . Kyrkanides and Richter [10] inferred that antegonial notching, though statistically insignificant between cleft and non-cleft individuals, provided a preliminary manifestation of developing mandibular and lower facial asymmetry.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of frontal and axial morphology in repaired unilateral cleft lip and palate patients

Ahmed¹,

Khajuria²

2021

Int. J. Appl. Dent. Sci.

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To evaluate the extent of maxillary arch collapse on cleft vis-a-vis non-cleft side in the same individual presenting with unilateral cleft lip and palate (UCLP) using cone-beam computed tomography (CBCT). Material and methods: 22 children with surgically repaired UCLP who met the inclusion criteria were selected. Following the acquisition of CBCT scans, 14 bilateral landmarks were selected. The distance of the bilateral landmark was calculated from the midsagittal plane on the cleft and non-cleft side for both frontal and axial view. Tracings were done, data obtained was subjected to statistical analysis. Results: In the axial view, zygomatic arch, malar and porion were non-significant but the alveolar crest at the premolar region (p<.003) and molar (p<.007) region were significantly decreased. In frontal analysis, pyriforme and alveolar crest above the maxillary 1st molar and in axial view, premolar and molar widths showed significant reduction when comparing the cleft vis-a-vis non-cleft sides. Conclusion:In frontal analysis, the area encompassing the cleft region showed significant reduction when compared to the non-cleft side along with pyriforme and the alveolar crest over the maxillary first molar. In axial view, when comparing the cleft vis-a-vis non-cleft sides, premolar and molar widths were significantly reduced.

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Section: Discussionmentioning

confidence: 99%

Evaluation of frontal and axial morphology in repaired unilateral cleft lip and palate patients

Ahmed¹,

Khajuria²

2021

Int. J. Appl. Dent. Sci.

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“…In the last decades, many studies aimed to evaluate the correlation between the facial typology and the mandibular third molar position [ 15 , 17 , 18 , 19 , 20 ]. In particular, the facial typology was defined as a direct consequence of the mandibular growth pattern, and the gonial angle well represents its clinical expression [ 21 , 22 ]. The growth rotation of the mandible could distinguish dolichofacial, mesofacial, and brachyfacial typology, assessing the specific skeletal characteristics in vertical and horizontal planes [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

“…The growth rotation of the mandible could distinguish dolichofacial, mesofacial, and brachyfacial typology, assessing the specific skeletal characteristics in vertical and horizontal planes [ 22 ]. Dolichofacial typology records an excess vertical growth pattern, a clockwise rotation of the mandible, and clinical features of a long face with weak muscles and lip incompetence [ 21 , 23 ]. Mesofacial typology shows a harmonic growth of maxillary and mandibular bone both in vertical and horizontal plane [ 24 ].…”

Section: Introductionmentioning

confidence: 99%

“…Mesofacial typology shows a harmonic growth of maxillary and mandibular bone both in vertical and horizontal plane [ 24 ]. On the contrary, brachyfacial typology is characterized by a decreased vertical growth pattern and a counter-clockwise rotation of the mandible, defining the clinical aspect of a short and squared face with strong muscles [ 21 ].…”

Section: Introductionmentioning

confidence: 99%

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Does Mandibular Gonial Angle Influence the Eruption Pattern of the Lower Third Molar? A Three-Dimensional Study

Barone

Antonelli

Averta

et al. 2021

JCM

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Lower third molars (M3M) are the most frequent impacted teeth. The aim of this study was to evaluate the correlation between M3M position and gonial angle. A retrospective cross-sectional study was conducted. The study population included patients with unilateral or bilateral M3M and underwent Cone Beam Computed Tomography. A morphometric analysis of the mandible was performed after three-dimensional reconstruction, recording gonial angle (GA), ramus high, ramus width, ramus divergency, and retromolar space. GA was the primary predictor variable. The primary outcome variable was the position of M3M analyzed in sagittal, axial, and coronal planes. Descriptive, bivariate, and multiple regression statistics were performed (p < 0.05). Study sample included 172 patients (mean age: 26.3 ± 4.6 years); 266 M3Ms were analyzed. The average GA was 122.6° ± 4.8°. A reduced GA value was significantly associated with a deeply impacted M3M in the ramus. With a progressive decrease of GA, M3M assumed a more horizontal position closer to the mandibular canal (p < 0.05). A lower GA showed a reduced retromolar space with more complex impacted M3M (p < 0.05). The results confirm a statistically significant correlation between GA and the position of M3M. Higher incidence of impacted M3M was related to a reduction of the GA value.

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“…6 The study of the relationship between vertical and dentoalveolar characteristics provides valid results of cephalometric measurements in predicting patient growth and increased quality of treatment and prognosis. 7 Growth modification from dentoalveolar height can be achieved through orthodontic treatment. This is an important factor in planning orthodontic treatment because, in addition to affecting the maxillofacial system's growth, the face type can also affect the selection of the anchoring system to be used in orthodontic treatment.…”

Section: Introductionmentioning

confidence: 99%

Correlation between Dentoalveolar Heights and Vertical Skeletal Patterns in Class I Malocclusion in Ethnic Javanese

2020

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Objectives Vertical proportions of the face are important determining factors for diagnosis and planning appropriate orthodontic treatment. Orthodontic patients have different vertical and sagittal skeletal discrepancies, as well as associated varying degrees of dentoalveolar compensations. Dentoalveolar is a functional component of the jaw; it plays a role in occlusal dynamics and forms sagittal and vertical maxilla–mandibula relationships. This study aims to analyze the relationship between dentoalveolar heights and several vertical skeletal patterns in patients with Class I malocclusion in ethnic Javanese. Materials and Methods The sample consisted of lateral cephalograms of 75 patients (18 samples were male, and 57 were female). Determined by inclusion and exclusion criteria, the participants were selected from an initial sample of 196 patients with skeletal Class I malocclusion (sella–nasion–A and B [ANB] = 1–4 degrees). Cephalometric analysis was performed using OrthoVision2017 digital software. This analysis measured upper anterior dental height (UADH), upper posterior dental height (UPDH), lower anterior dental height (LADH), lower posterior dental height (LPDH), ANB angle, sella–nasion and mandibular plane (SN-MP), sella–nasion and palatal plane (SN-PP), palatal plane and mandibular plane (PP-MP), Frankfort horizontal plane and mandibular plane (FH-MP), sella to gonion (S-Go), articulare to gonion (Ar-Go), nasion to menton (N-Me), nasion to anterior nasal spine (N-ANS), and anterior nasal spine to menton (ANS-Me). Pearson correlation test was used to assess correlations among all variables (p < 0.05). Results Significant correlations were observed between dentoalveolar heights and SN-MP, S-Go, Ar-Go, N-Me, and ANS-Me (p < 0.05). Conclusions Patients with Class I malocclusion in ethnic Javanese exhibit a significant correlation between dentoalveolar and vertical skeletal patterns. UPDH and/or LPDH have a significantly positive correlation with SN-MP, S-Go, Ar-Go, N-Me, and ANS-Me. The orthodontic correction of the decreased or increased facial height included either the extrusion or intrusion of the anterior or posterior teeth in different ways.

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Relationship between the Condylion–Gonion–Menton Angle and Dentoalveolar Heights

Cited by 11 publications

References 41 publications

Evaluation of frontal and axial morphology in repaired unilateral cleft lip and palate patients

Evaluation of frontal and axial morphology in repaired unilateral cleft lip and palate patients

Does Mandibular Gonial Angle Influence the Eruption Pattern of the Lower Third Molar? A Three-Dimensional Study

Correlation between Dentoalveolar Heights and Vertical Skeletal Patterns in Class I Malocclusion in Ethnic Javanese

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