Changes in maxillary incisor inclination and position after traction of unilateral vs bilateral maxillary impacted canines in nonextraction treatment: A cone-beam computed tomography study

Chávez-Alvarez, Claudia; Arriola-Guillén, Luis Ernesto; Rodríguez-Cárdenas, Yalil Augusto; Ruíz-Mora, Gustavo Armando; Fiori-Chíncaro, Gustavo Adolfo; Silveira, Heraldo Luís Dias da; Castillo, Aron Aliaga–Del

doi:10.1016/j.ajodo.2018.12.021

Cited by 7 publications

(3 citation statements)

References 29 publications

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“…This suggested that another possible reason for impaction, apart from the anteroposterior problem, was excess space in the palate at the level of the apices of the incisors, combined with a relative coronal crowding at the incisal level, coinciding with our data of more negative bone discrepancy in the impacted hemiarch. The literature reported that the absence of an erupted maxillary canine is related to changes in the labial inclination of the incisors [43], with minor coronal inclinations in the four upper permanent incisors in cases of canine impaction compared with subjects without impaction. In our study, however, the subject's sagittal occlusal relationship was not considered.…”

Section: Discussionmentioning

confidence: 99%

Skeletal and Dental Morphological Characteristics of the Maxillary in Patients with Impacted Canines Using Cone Beam Computed Tomography: A Retrospective Clinical Study

Montes-Díaz¹,

Martínez-González²,

Arriazu-Navarro³

et al. 2022

JPM

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The aim of this study is to analyze the skeletal and dentoalveolar morphological characteristics of the maxillary in subjects with a unilateral palatally impacted canine using Cone Beam Computed Tomography (CBCT). A retrospective clinical study was conducted of 100 adult patients divided into two groups: one consisting of patients with a unilaterally palatally impacted maxillary canine (GI), with the subgroups in the right and left hemiarches (GI-R and GI-L), and the second, without impacted canine, as the control group (CG). The CBCT measured skeletal variables (maxillary basal width and alveolar crest height) and dentoalveolar variables (inclination of the upper incisor, tooth lengths of incisors and canines, arch length, tooth size and bone dental discrepancy). In skeletal variables, statistically significant differences were found in alveolar crest height (ACH) in all groups and subgroups (p < 0.01). In the dentoalveolar variables, there were differences in the angle of the upper incisor (II) and lateral incisor length (LLIL) between the GI and GC and the angle of the upper incisor (II′), arch length (AL′) and arch length-tooth size discrepancy (ATD′) among the GI subgroups (p < 0.01). There are skeletal and dentoalveolar differences in patients with unilateral palatally impacted maxillary canines, with lower angular and linear measurements compared with patients without impaction.

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Section: Discussionmentioning

confidence: 99%

Skeletal and Dental Morphological Characteristics of the Maxillary in Patients with Impacted Canines Using Cone Beam Computed Tomography: A Retrospective Clinical Study

Montes-Díaz¹,

Martínez-González²,

Arriazu-Navarro³

et al. 2022

JPM

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“…Another challenge was periodontal which be affected by various factors, such as the type of surgical procedure selected to expose the crown of the impacted tooth, the eruption of the teeth through the attached gingiva or mucosa, the hygiene methods used, and the anatomical characteristics of the mandibular bone, including reduced bicortical width and alveolar rigidity [39]. It has been shown that surgical procedures closed by the buccal approach, such as that used in this case report, offer better results [40][41][42][43][44]. Nevertheless, coronal elongation of the canines was observed in the patient, with cervical exposure and possible projection of the roots through the attached gingiva margin due to the narrowness of the alveolar bone corridor, for which it was recommended to keep the canine and anteroinferior area in optimal hygiene conditions and monitor the stability of the occlusion.…”

Section: Discussionmentioning

confidence: 91%

Conservative Treatment of Bilateral Impacted Mandibular Canines Traction

Ruíz-Mora

Arriola-Guillén

Castillo

et al. 2023

Case Reports in Dentistry

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The objectives of the treatment of impacted canines differ according to the characteristics of dental malocclusion. Traction of the tooth is a conservative and viable alternative, which allows for maintaining stability and occlusal function. The following case report describes the treatment of an 11.6-year-old female patient, who presented bilateral impaction of mandibular canines in contact with the midline, mixed dentition in the inter-transitional period, class I angle malocclusion, with light crowding teeth. The treatment comprised three phases. The first phase, verticalization of the mandibular canines in mixed dentition, was performed to pull the impacted bilateral mandibular canines towards the dental arch to achieve their verticalization, maintaining the molar relationship, and the position of the upper and lower incisors. In the second phase, osteogenic rest was planned to relieve post-traction stress while awaiting the replacement of the mixed dentition. Finally, the third phase in permanent dentition was to align and level canines within the arch after extraction of the deciduous canines. For the viability of the permanent mandibular canines in the dental arch, orthosurgical traction was implemented, with a traction system with closed nickel–titanium coil springs with a transitory rigid dental-mucous-supported anchorage device, which allowed control and protection of the adjacent teeth and movements with helical forces of a controlled three-dimensional range. The results of the treatment were adequate, achieving consolidated molar and canine relationships, overjet, overbite, and optimal facial balance.

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“…multiple planes of view that can allow for more accurate analyses. [12][13][14] In addition, these CBCT data can be used to generate 3D reconstructions using software.…”

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confidence: 99%

An analysis of clinical and imaging features of unilateral impacted maxillary central incisors: A cross-sectional study

Hui

Niu

Jin

et al. 2022

American Journal of Orthodontics and Dentofacial Orthopedics

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Introduction: This cross-sectional study sought to assess clinical features and 3-dimensional distribution of unilateral impacted maxillary central incisors and identify factors associated with the root morphology. Methods: Cone-beam computed tomography (CBCT) images from 94 subjects exhibiting unilateral impacted maxillary incisors were selected and evaluated. Original CBCT data were reconstructed using Mimics software (version 17.0; Materialise, Belgium). Clinical features and 3-dimensional distribution of impacted maxillary central incisors and factors associated with the root morphology were observed and analyzed by 2 orthodontists. Results: This patient cohort included 52 male patients and 42 female patients. Thirty-three incisors (35.11%) with dilacerated roots, 17 incisors (18.09%) with retained deciduous teeth, 15 incisors (15.96%) with supernumerary teeth, and 15 incisors (15.96%) with a history of trauma were identified in the study. Of the 94 impacted incisors, the most common were labially impacted (n 5 65; 69.15%), followed by vertically impacted (n 5 17; 18.09%) and palatally impacted (n 5 12; 12.77%). Chi-square tests revealed that differences in subjects with supernumerary teeth, buccolingual position, sagittal position, and axial position in the upright and dilacerated root groups were statistically significant (P \0.05). Logistic regression analysis indicated that the incidence of dilacerations was higher in the inverted position than in the inclined position and horizontal position (P \0.05). Conclusions: Labially impacted maxillary incisors were more common than vertically or palatally incisors. Dilaceration was most commonly observed in patients with inverted incisors. In clinical practice, CBCT is a valuable tool for diagnosing impacted maxillary central incisors and for making appropriate treatment plans for patients. (Am J Orthod Dentofacial Orthop 2021

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Changes in maxillary incisor inclination and position after traction of unilateral vs bilateral maxillary impacted canines in nonextraction treatment: A cone-beam computed tomography study

Cited by 7 publications

References 29 publications

Skeletal and Dental Morphological Characteristics of the Maxillary in Patients with Impacted Canines Using Cone Beam Computed Tomography: A Retrospective Clinical Study

Skeletal and Dental Morphological Characteristics of the Maxillary in Patients with Impacted Canines Using Cone Beam Computed Tomography: A Retrospective Clinical Study

Conservative Treatment of Bilateral Impacted Mandibular Canines Traction

An analysis of clinical and imaging features of unilateral impacted maxillary central incisors: A cross-sectional study

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