The differences of root morphology and root length between different types of impacted maxillary central incisors: A retrospective cone-beam computed tomography study

Wu, Guosheng; He, Shengxi; Chi, Jun; Sun, Hao; Ye, Huihuang; Bhikoo, Chandradev; Du, Wulong; Pan, Wenhao; Voliere, Gerald; Hu, Rongdang

doi:10.1016/j.ajodo.2020.09.037

Cited by 3 publications

(1 citation statement)

References 17 publications

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“…Previous studies have primarily focused on root development and impaction due to physical obstacles, such as supernumerary teeth, in impacted maxillary central incisors [ 53 ]. However, recent research assessing root development and associated factors in impacted maxillary central incisors, encompassing cases of primary retention without physical obstruction, has been limited.…”

Section: Discussionmentioning

confidence: 99%

Morphometric Comparison and Prognostic Analysis of Permanent Maxillary Central Incisors with Eruption Disturbances—A Cross-Sectional Study

Jeong,

Shin,

Park

et al. 2024

Children

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Aims: The aim of this study was to retrospectively compare the morphometrics of permanent maxillary central incisors with and without eruption disturbances, while simultaneously evaluating prognosis based on different factors. Materials and Methods: Seventy patients with unilateral permanent maxillary central incisor eruption disturbances were included. Within a group of 70 subjects, measurements were taken for both normally erupted central incisors and central incisors with eruption disturbances to determine the length of the roots and the volume of the teeth. Various factors, such as angulation of impaction, and vertical height of impaction, were assessed to investigate their correlation with surgical intervention. Results: Both the root length and tooth volume were significantly smaller in the eruption disturbance incisors than in the normally erupted incisors (p ≤ 0.001). Moreover, there was a statistically significant increase in surgical intervention among cases with no clear physical barrier (primary retention) (p < 0.05) or when adjacent normally erupted central incisors exhibited more than 2/3 of root development (p < 0.05). Conclusions: The results of this study numerically demonstrated the delayed tooth development of the permanent maxillary central incisors with unilateral eruption disturbances compared to appropriately erupted incisors by measuring root length and tooth volume. The absence of obstacles and the degree of root development in adjacent erupted incisors might serve as factors for clinicians to determine the necessity and timing of surgical intervention.

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Section: Discussionmentioning

confidence: 99%

Morphometric Comparison and Prognostic Analysis of Permanent Maxillary Central Incisors with Eruption Disturbances—A Cross-Sectional Study

Jeong,

Shin,

Park

et al. 2024

Children

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Bone quality in relation to skeletal maturation in palatal miniscrews insertion sites

Braga¹,

Pozzan²,

Ciotola³

et al. 2023

American Journal of Orthodontics and Dentofacial Orthopedics

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Effects of single unilaterally impacted mesiodens on maxillary central incisors: A 3D quantitative assessment based on cone‐beam computed tomography

Yang,

Zhang,

Shi

et al. 2024

Int J Paed Dentistry

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BackgroundMesiodens usually lead to the malposition and abnormal morphology of maxillary central incisors.AimTo evaluate the detrimental effects of single unilaterally impacted mesiodens on the three‐dimensional positions and morphology of the maxillary central incisor using cone‐beam computed tomographic (CBCT) examinations.DesignA total of 321 patients aged 5–17 years with single unilaterally impacted mesiodens were included and divided into two groups: mixed dentition group (5–10 years) and early permanent dentition group (11–17 years). CBCT data for these patients were retrospectively analyzed to compare the inclination, rotation, angulation, and morphology of maxillary central incisors between the affected and contralateral control sides. The morphology, orientation, and spatial location of mesiodens were also assessed.ResultsCentral incisors on the affected side showed significant palatal crown inclination, shorter root, shorter tooth, and greater crown‐to‐root ratio in both groups, whereas significant mesial crown angulation was only observed in the mixed dentition group.ConclusionImpacted mesiodentes result in the displacement and impaired root development of central incisors, strongly suggesting timely clinical management of these abnormal teeth, such as the early removal of mesiodens and orthodontic treatments.

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The differences of root morphology and root length between different types of impacted maxillary central incisors: A retrospective cone-beam computed tomography study

Cited by 3 publications

References 17 publications

Morphometric Comparison and Prognostic Analysis of Permanent Maxillary Central Incisors with Eruption Disturbances—A Cross-Sectional Study

Morphometric Comparison and Prognostic Analysis of Permanent Maxillary Central Incisors with Eruption Disturbances—A Cross-Sectional Study

Bone quality in relation to skeletal maturation in palatal miniscrews insertion sites

Effects of single unilaterally impacted mesiodens on maxillary central incisors: A 3D quantitative assessment based on cone‐beam computed tomography

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