Is there a relationship between third-molar impaction types and the dimensional/angular measurement values of posterior mandible according to Pell &amp; Gregory/Winter Classification?

Gümrükçü, Zeynep; Balaban, Emre; Karabağ, Mert

doi:10.1007/s11282-019-00420-2

Cited by 23 publications

(23 citation statements)

References 22 publications

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“…This retrospective study aimed to perform a morphometric analysis of the mandible after a 3D reconstruction of CBCT scans in order to evaluate the correlation between mandibular morphology and the lower third molar position. Facial typology and mandibular growth could influence the eruptive pattern and development of the M3M [ 16 , 17 , 18 , 19 , 20 ]. To our knowledge, this is the first three-dimensional study aiming to evaluate the M3M position and correlating it to the facial typology.…”

Section: Discussionmentioning

confidence: 99%

“…The direction of mandibular growth is related with a hyperdivergent or hypodivergent facial typology, showing high or low gonial angle, respectively [ 30 , 36 , 38 ]. As described in literature, the different clinical characteristics of these two mandibular patterns of growth concern also the position and the eruptive path of the M3M [ 16 , 17 , 18 , 19 , 20 ]. Björk and colleagues conducted detailed studies on facial growth development, concluding that the mandibular morphology could influence the lower third molar eruption [ 16 ].…”

Section: Discussionmentioning

confidence: 99%

“…Patients with skeletal class II showed high probability of M3M impaction because they recorded a smaller mandible with more acute gonial angle [ 17 ]. 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 ].…”

Section: Introductionmentioning

confidence: 99%

“…To date, the correlation between mandibular morphology and the M3M impaction has been studied using 2D radiographs [ 16 , 17 , 18 , 19 ]. There is a knowledge gap on 3D assessment which would allow the position of the M3M to be more accurately related to the surrounding anatomical structures.…”

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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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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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“…Esta clasificación se basa en el ángulo entre el eje longitudinal del tercer molar y el segundo molar mandibular (Gümrükçü et al, 2021):…”

Section: Clasificación De Winterunclassified

Análisis de terceros molares y sus estructuras anatómicas adyacentes mediante CBCT: meta-análisis

Domínguez

González

Calderón

2021

RSD

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El siguiente meta-análisis tiene por objetivo evaluar la posición de los terceros molares mandibulares y sus estructuras anatómicas cercanas (conducto dentario inferior, nervio dentario inferior, cortical lingual, segundo molar inferior). Se realizó mediante un filtro que permite la clasificación y evaluación de diversos artículos científicos, aplicando una búsqueda avanzada a través de bases digitales como PubMed, Cochrane, Science Direct y Wiley, los artículos seleccionados debían ser publicados entre los años 2017 - 2021. Además, detallamos las diferentes clasificaciones utilizadas para evaluar un tercer molar mandibular impactado, que según Winter la posición más prevalente es la mesioangular y según Pell y Gregory existe mayor prevalencia de la Clase 2-B; de igual manera detallamos clasificaciones recientes para molares impactados como son “Liqun Gu” y “Ogüz Boraham”. Estos hallazgos ilustran la importancia de ubicar estructuras cercanas al tercer molar mandibular, conocer diferentes clasificaciones para determinar la posición de un tercer molar impactado y la ventaja que presenta el CBCT en la planificación quirúrgica, evitando así posibles iatrogenias en la práctica clínica.

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Evaluation of mandibular morphologic measurements and trabecular structure among subgroups of impacted mandibular third molars

et al. 2021

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Is there a relationship between third-molar impaction types and the dimensional/angular measurement values of posterior mandible according to Pell & Gregory/Winter Classification?

Cited by 23 publications

References 22 publications

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

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

Análisis de terceros molares y sus estructuras anatómicas adyacentes mediante CBCT: meta-análisis

Evaluation of mandibular morphologic measurements and trabecular structure among subgroups of impacted mandibular third molars

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