Qualitative and quantitative three-dimensional evaluation of maxillary basal and dentoalveolar dimensions in patients with and without maxillary impacted canines

Sharhan, Hasan M; Almashraqi, Abeer A; Al-Fakeh, Hanan; Alhashimi, Najah; Abdulghani, Ehab A; Chen, Wenyuanfeng; Al-Sosowa, Abeer A; Cao, Baocheng; Alhammadi, Maged Sultan

doi:10.1186/s40510-022-00434-3

Cited by 7 publications

(8 citation statements)

References 41 publications

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“…Investigation of activity of the craniomandibular system muscles is very important during the growth of a child, in a period of mixed bite. Functional disorders, particularly breathing, and swallowing functions, are found frequently in childhood and may cause a narrowing upper jaw [4,15,21,25].…”

Section: Discussionmentioning

confidence: 99%

“…The etiology of posterior crossbite can include any combination of dental, skeletal, and neuromuscular functional components, but the most frequent cause is a reduction in the width of the maxillary dental arch. Such a reduction can be induced by bad habits or obstruction of the upper airways caused by adenoid tissues, allergic rhinitis, or septal deviation [2,15,21,26]. Previous studies have shown that posterior crossbite in children and adolescents has been associated with asymmetrical function and performance of the masticatory muscles [2].…”

Section: Introductionmentioning

confidence: 99%

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Emg Activity of Muscles of the Craniomandibular System in Subjects With Narrowing Upper Jaw and Posterior Crossbite

Smaglyuk,

Echarri,

Liakhovska

et al. 2024

Med. and Ecol. probl.

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Posterior crossbite in children and adolescents has been linked to asymmetrical function and performance of the masticatory muscles. Electromyography (EMG) serves as an objective and widely applicable evidence-based method for diagnosing muscle function. The aim of our study was to analyze electromyographic (EMG) activity of muscles of the craniomandibular system in subjects with a narrowing upper jaw and unilateral posterior crossbite. Material and methods. The first (study) group consisted of 18 subjects with narrow maxilla and unilateral posterior crossbite. 20 age-matched children with normal occlusion were included in the control group. The average age of subjects in the study group was 8.4±1.4 years, in the control group – 8.8±1.6 years. The exclusion criteria of the study were as follows: previous or active orthodontic treatment, clefts, traumas in the maxillofacial region, and general diseases. EMG activity of the anterior temporal, masseter, sternocleidomastoid (SCM), orbicularis oris, and mentalis muscles on both sides (left and right) was recorded during two 30-second tests: maximum voluntary clenching and swallowing a sip of water. Maximum voluntary clenching was performed in the intercuspal position. EMG data were processed using Neurotech's Synapsis software. EMG activity for each muscle was estimated by the maximum amplitude of the muscle contractions (μV). Results. EMG activity in children with narrowing upper jaw and unilateral posterior crossbite of anterior temporal, masseter, and sternocleidomastoid muscles was asymmetrical and differed between the left and right sides. Higher bioelectrical muscle activity was found on the crossbite side for the masseter and anterior temporalis muscle, and on the opposite side – for sternocleidomastoid muscles. Values of maximum amplitude of sternocleidomastoid muscles were higher in the study group than in the control group without significant difference. There was a statistically significant difference in EMG activity of mentalis and orbicularis oris muscles between the two groups of children (p<0.05). Values of EMG activity of mentalis and orbicularis oris were higher in the study group.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Emg Activity of Muscles of the Craniomandibular System in Subjects With Narrowing Upper Jaw and Posterior Crossbite

Smaglyuk,

Echarri,

Liakhovska

et al. 2024

Med. and Ecol. probl.

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“…stated that the maxillary rst molar basal bone widths were signi cantly reduced in patients with impacted maxillary canines. Recently, a CBCT assessment declared that, basal bone and alveolar widths of the maxillary rst premolars and molars were reduced in the unilateral and bilateral impacted maxillary canine groups than controls [35]. Conversely, Saiar et al [36], examined the posteroanterior cephalograms of patients with palatally impacted maxillary canines, and reported no association between the skeletal maxillary width and the impaction.…”

Section: Discussionmentioning

confidence: 99%

Buccolingual inclination of posterior dentition in maxillary impacted canine patients using quadrant analysis - A cone-beam computed tomographic study

Sökmen,

Bagcı,

Tuncer

2024

Preprint

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Background To examine the buccolingual inclination of maxillary posterior teeth, curve of Wilson, and transversal dimensions in palatally impacted maxillary canine patients, compared to controls by cone-beam computed tomography (CBCT). Materials and Methods: Pre-treatment images of 22 bilateral, 32 unilateral impacted maxillary canine patients and 30 controls were included. All patients had palatally impacted canines, with no posterior cross-bite. Data were reclassified in quadrants according to the presence of impaction, as the impaction quadrant (right and left quadrants of 22 bilateral impacted cases, and quadrants presenting impaction of 32 unilateral cases, n = 76), unaffected quadrant (quadrant without impaction in 32 unilateral cases, n = 32) and the control quadrant (right and left quadrants of 30 controls, n = 60) to evaluate the buccolingual inclination angle, transversal width, and arch perimeter. Additionally, comparisons were made regarding curve of Wilson and total arch perimeter among bilateral and unilateral impaction groups with the control group. Statistical analysis was performed by one-way ANOVA and Kruskal Wallis tests. Tukey or Dunn tests were used for comparisons between groups in pairs. Results No significant difference was found for the buccolingual inclination of maxillary posterior teeth and curve of Wilson among groups. The buccolingual inclination of canines in the impaction quadrant was significantly lower than the other quadrants (p < 0,001). Basal bone width at the level of second premolars, and alveolar width at both premolars were significantly narrower in the impaction quadrant than in the unaffected quadrant (p < 0,05). Dental arch width at the level of first premolar was significantly decreased in the impaction quadrant compared to other quadrants (p < 0,05). Arch perimeter was significantly reduced in the impaction quadrant than in the unaffected quadrant (p < 0,05). Conclusion The presence of bilateral or unilateral palatally impacted maxillary canines did not effect the buccolingual inclination of posterior teeth, and curve of Wilson. Transverse discrepancy was evident in the impaction quadrant even in the absence of posterior cross-bite. Quadrant analysis was particularly useful in evaluating asymmetry for basal bone and alveolar bone widths in the premolar region in patients with unilateral palatally impacted maxillary canine patients.

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“…The sample size was calculated using the G*power software (version 3.1.9; Franz Faul Universitat, Kiel, Germany). Power analysis before the study was calculated with reference to the intercanine width, as evaluated in the study by Sharhan et al [ 9 ]. According to the power analysis, the total sample size was determined to be 30, with a desired power (1-b) of 0.95 at the conventional a level (0.05) and an effect size of 0.77.…”

Section: Methodsmentioning

confidence: 99%

Is There a Relationship Between Unilateral/Bilateral Impacted Maxillary Canines and Nasal Septum Deviation?

Kucukkaraca

2023

Cureus

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Introduction A deviated nasal septum may be associated with some dentofacial deformities. The aim of the study was to determine whether there is a relationship between some craniomaxillary features of unilateral and bilateral maxillary impacted canines and nasal septum deviation. Methods This is a retrospective study consisting of cone beam computed tomography (CBCT) images of 51 patients. All patients were divided into three subgroups: unilateral maxillary impacted canines (UMIC) (n=19) bilateral maxillary impacted canines (BMIC) (n=15), and control group (MC) (n=17). The septal deviation angle and some angular and dimensional measurements were performed. Differences in linear and angular measurements between the groups were analyzed using One-way ANOVA and the Kruskal-Wallis test. Pearson's correlation analysis was performed to determine the relationship between the septal deviation angle, septal deviation direction, nasal floor angle, and other parameters, and multivariate linear regression analysis was performed to determine the effect of variables in the septal deviation angle. Results Bilateral or unilateral position of the impacted canines was found to be effective on septal deviation. The septal deviation angle and the nasal floor angle values were found to be significantly higher in the UMIC and BMIC groups (p<0.001) than in the MC group. Maxillary width was found to be significantly lower in the BMIC group compared to the UMIC (p<0.01) and MC group (p<0.001). Septal deviation angle was positively correlated with septal deviation direction and nasal floor angle (p<0.001). Palatal width and nasal floor angle were found to be negatively correlated (p<0.05), and palatal depth and septal deviation direction were found to be positively correlated (p<0.01). Groups and septal deviation angle, septal deviation direction, and nasal floor angle were found to be negatively correlated (p<0.001). The multivariate linear regression analysis revealed an association between septal deviation angle, group (p<0.01), and nasal floor angle (p<0.05). Conclusion Bilateral or unilateral position of the impacted canines was found to be effective on septal deviation. The septal deviation angle values were found to be higher when the maxillary impacted canine was unilateral. Unilateral or bilateral positions of the impacted canine and the nasal floor angle were found to be factors affecting the formation of septal deviation.

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Qualitative and quantitative three-dimensional evaluation of maxillary basal and dentoalveolar dimensions in patients with and without maxillary impacted canines

Cited by 7 publications

References 41 publications

Emg Activity of Muscles of the Craniomandibular System in Subjects With Narrowing Upper Jaw and Posterior Crossbite

Emg Activity of Muscles of the Craniomandibular System in Subjects With Narrowing Upper Jaw and Posterior Crossbite

Buccolingual inclination of posterior dentition in maxillary impacted canine patients using quadrant analysis - A cone-beam computed tomographic study

Is There a Relationship Between Unilateral/Bilateral Impacted Maxillary Canines and Nasal Septum Deviation?

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