Comparison of alveolar bone thickness and height after slow expansion using quad-helix or clear aligners

Bahammam, Maha A.; El‐Bialy, Tarek

doi:10.1016/j.sdentj.2023.02.006

Cited by 5 publications

(5 citation statements)

References 20 publications

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“…When comparing these values with those observed in studies using different expansion appliances, studies using mini-screw-assisted rapid palatal expansion (MARPE) or surgically assisted rapid palatal expansion (SARPE) found similar values to those found in our study with RME, with 5.34-5.8 mm of IMW increase [12,82], while other studies found lower values of 3.70-4.91 mm [13,14]. The higher values of IMW increase were observed by Altug et al ( 2006) [83] with 7.81 for both RME and SARPE groups, and other studies showed lower increases of 0.98-2.2mm using slow maxillary expansion (SME) appliances [33,35]. On the other hand, it was observed that MA was lower in studies using MARPE and SARPE [12,14,15,82], except for Altug et al (2006) [83] who found higher MA in the SARPE group than in the RME group, and the MA had higher values in the SME group when comparing it to the RME group [33], although their MA values in the RME group were lower than in our study.…”

Section: Discussioncontrasting

confidence: 42%

“…However, we have to keep in mind the lack of standardization of measurements when interpreting these differences or similarities between studies. Some studies also evaluate alveolar bone changes after expansion with different outcomes, which would be interesting to include in future investigations [12,14,15,34,35].…”

Section: Discussionmentioning

confidence: 99%

“…Traditionally, studies about changes after RME have been based on occlusal radiographs and frontal cephalometry, as these are the means commonly used in diagnosis and during orthodontic treatment [22][23][24][25][26]. However, with the advent of CBCT, a more accurate and replicable assessment of anatomical structures in all three planes of space has been achieved [12][13][14][15][27][28][29][30][31][32][33][34][35]. On the other hand, there is an increasing interest in the evaluation of dental and skeletal changes as well as changes in the nasal cavity after RME with CBCT in growing patients [12,[27][28][29][30]32,[36][37][38][39][40][41][42][43][44].…”

Section: Introductionmentioning

confidence: 99%

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Skeletal and Dentoalveolar Changes in Growing Patients Treated with Rapid Maxillary Expansion Measured in 3D Cone-Beam Computed Tomography

Colino-Gallardo,

Del Fresno-Aguilar,

Castillo-Montaño

et al. 2023

Biomedicines

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The skeletal and dental effects of rapid maxillary expansion (RME) have been extensively studied, but high-quality research is still needed to determine the three-dimensional (3D) effects of RME. The aim of this study was to compare skeletal and dentoalveolar parameters through cone-beam computed tomography (CBCT) pre- (T1) and post-treatment (T2) with respect to RME. Twenty growing patients (mean age 10.7 years) were treated with a Hyrax-type expander. A 3D CBCT was performed at T1 and T2, measuring nasal width, maxillary width, palatal height, maxillary arch perimeter, angulation of the upper first molar, and intermolar width. The mean palatal suture opening was 2.85 ± 0.62 mm (p < 0.0001). Nasal width increased 1.28 ± 0.64 mm and maxillary width 2.79 ± 1.48 mm (p < 0.0001). In contrast, palatal height was reduced 0.65 ± 0.64 mm (p < 0.0001). Regarding arch perimeter, the radicular perimeter increased 2.89 ± 1.80 mm, while the coronal perimeter increased 3.42 ± 2.09 mm (p < 0.0001). Molar angulation increased 5.62 ± 3.20° for the right molar and 4.74 ± 2.22° for the left molar (p < 0.0001). Intermolar width increased 5.21 ± 1.55 mm (p < 0.0001). Treatment with Hyrax produced a significant opening in the mean palatal suture. Also, a significant increase in nasal width, maxillary width, arch perimeter, molar angulation, and intermolar width, and a decrease in palatal height, were observed.

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Section: Discussioncontrasting

confidence: 42%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Skeletal and Dentoalveolar Changes in Growing Patients Treated with Rapid Maxillary Expansion Measured in 3D Cone-Beam Computed Tomography

Colino-Gallardo,

Del Fresno-Aguilar,

Castillo-Montaño

et al. 2023

Biomedicines

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“…Bahammam et al 19 found clear aligners might be better for conserving alveolar bone integrity during orthodontic treatment. In this study, the volume of palatal bone dehiscence in the fixed appliance group was numerically higher than that in the clear aligner group after treatment, which suggests that the intermittent light force of the clear aligner treatment may be more conducive to the remodelling of the palatal alveolar bone, 20 thus resulting in less palatal bone dehiscence.…”

Section: Discussionmentioning

confidence: 99%

A retrospective study of alveolar bone remodelling after anterior retraction in orthodontic tooth extraction cases with clear aligners and fixed appliances

Guo

Zhang

Guo

et al. 2023

Orthod Craniofacial Res

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ObjectivesTo evaluate alveolar bone dimensions and its relationship with tooth movement (retraction, intrusion and torque) during orthodontic treatment with fixed appliance and clear aligners.MethodsThirty‐two patients were included in this retrospective clinical study. Cone beam computed tomography (CBCT) was collected before and after treatment to measure the volume of dehiscence and fenestrations in the maxillary anterior region, anterior alveolar bone thickness and height and degree of tooth movement. Rank‐sum tests were used to compare the differences in alveolar bone defect volumes between clear aligners and fixed appliance, multiple linear regression analysis was used for study evaluation, and kappa statistics were used to assess internal consistency and test‐retest reliability.ResultsPost‐operatively, most alveolar bone defects occurred on the labial side. The incidence of bone fenestration was 23.96% in the clear aligner group and 26.18% in the fixed appliance group, which was higher than the incidence of bone dehiscence (5.21%). The labial bone height decreased by 0.272 mm, and the palatal bone height increased by 0.617 mm for every 1 mm downward intrusion of the anterior tooth apex in the fixed appliance group. In the clear aligner group, there was no significant change in the labial bone height, and the palatal bone height decreased by 0.447 mm for every 1 mm of anterior tooth retraction coronally.ConclusionsIn the fixed appliance group, anterior tooth intrusion and retraction may have led to alveolar bone resorption by its compression at the cervical level. This study provides a three‐dimensional tooth movement evaluation method by using CBCT.

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“…Clear aligners are an alternative to conventional fixed appliances due to their aesthetic benefits, oral hygiene, and reduced visits to the orthodontist ( Buschang et al, 2014 , Bahammam and El-Bialy, 2023 ).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the success of predicted dental changes with clear-aligner treatment: A pilot study

Caldas,

Bonin,

Piscinini

et al. 2024

The Saudi Dental Journal

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Comparison of alveolar bone thickness and height after slow expansion using quad-helix or clear aligners

Cited by 5 publications

References 20 publications

Skeletal and Dentoalveolar Changes in Growing Patients Treated with Rapid Maxillary Expansion Measured in 3D Cone-Beam Computed Tomography

Skeletal and Dentoalveolar Changes in Growing Patients Treated with Rapid Maxillary Expansion Measured in 3D Cone-Beam Computed Tomography

A retrospective study of alveolar bone remodelling after anterior retraction in orthodontic tooth extraction cases with clear aligners and fixed appliances

Evaluation of the success of predicted dental changes with clear-aligner treatment: A pilot study

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