Three-dimensional analysis of effects of rapid maxillary expansion on facial sutures and bones: A systematic review

Bazargani, Farhan; Feldmann, Ingalill; Bondemark, Lars

doi:10.2319/020413-103.1

Cited by 115 publications

(104 citation statements)

References 20 publications

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“…Out of the tested demographic and dentofacial variables, no significant correlation with the risk of asymmetric expansion was found except for the chin deviation (Table ). Moreover, unilateral splits of other circum‐maxillary sutures or transverse palatal sutures, occasionally observed in patients of Group A, could not be statistically investigated in this study due to the large interindividual variations and low incidence . The clinical implication is that a facial asymmetric patient with chin deviation has a risk of asymmetric expansion with TBB‐RPE, and thus, facial asymmetry may be alleviated or aggravated unpredictably.…”

Section: Discussionmentioning

confidence: 95%

Asymmetric nasomaxillary expansion induced by tooth‐bone‐borne expander producing differential craniofacial changes

Kim

et al. 2019

Orthod Craniofacial Res

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Objectives To evaluate three‐dimensional (3D) craniofacial changes induced by a non‐surgical tooth‐bone‐borne rapid palatal expander (TBB‐RPE) according to the symmetrical pattern of expansion, to investigate the 3D changes between the sides in patients with asymmetric expansion, and to identify the related factors of asymmetric expansion. Setting and sample population Sixty‐six patients (mean age: 19.3 ± 5.7 years) treated with TBB‐RPE were divided into a symmetric expansion group (Group S, n = 46) or asymmetric expansion group (Group A, n = 20). Group S was subdivided into Group Ss (n = 27), with bilateral frontomaxillary suture (FMS) split, and Group Sn (n = 19), with no FMS split. Materials and methods Pre‐ and post‐expansion cone‐beam computed tomography images were superimposed, and the common coordinated system was set. All landmarks were designated as coordinate pairs, and treatment changes were automatically calculated. Analysis of variance was conducted for intergroup comparison of craniofacial changes, and logistic regression analysis was performed to identify the related factors of asymmetric expansion. Results The frequency of asymmetric expansion was 30.3%. Group A with unilateral FMS split showed less craniofacial changes than Group Ss and more changes than Group Sn. Group A exhibited different nasomaxillary displacement between the two halves, showing greater changes in the FMS‐split side. Among the tested six variables (age, gender, Angle's classification, unilateral crossbite, maxillary cant and chin deviation), chin deviation was uniquely associated with asymmetric expansion. Conclusions Tooth‐bone‐borne rapid palatal expander had a risk of asymmetric expansion, especially in facial asymmetric patients with chin deviation, producing different craniofacial changes from symmetric expansion.

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Section: Discussionmentioning

confidence: 95%

Asymmetric nasomaxillary expansion induced by tooth‐bone‐borne expander producing differential craniofacial changes

Kim

et al. 2019

Orthod Craniofacial Res

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“…The 12 SRs/MAs included and the data extracted are reported in Table . Four SRs were integrated with MA .…”

Section: Resultsmentioning

confidence: 99%

“…Skeletal transversal effects of RME : With the Haas or Hyrax appliance, an increase in the distance between the left and right jugale points ( low evidence), an increase in the dimension of the posterior and anterior region of the midpalatal suture ( low evidence) and an increase in the dimension of the canine region ( low evidence) were found.…”

Section: Resultsmentioning

confidence: 99%

Dental and skeletal effects of palatal expansion techniques: a systematic review of the current evidence from systematic reviews and meta‐analyses

Bucci

D’Antò

Rongo

et al. 2016

J of Oral Rehabilitation

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The aim was to assess the quality and to summarise the findings of the Systematic Reviews (SRs) and Meta-Analyses (MAs) on the dental and skeletal effects of maxillary expansion. Electronic and manual searches have been independently conducted by two investigators, up to February 2015. SRs and MAs on the dentoalveolar and skeletal effects of fixed expanders were included. The methodological quality was assessed using the AMSTAR (A Measurement Tool to Assess Systematic Reviews). The design of the primary studies included in each SR/MA was assessed with the LRD (Level of Research Design scoring). The evidence for each outcome was rated applying a pre-determined scale. Twelve SRs/MAs were included. The AMSTAR scores ranged from 4 to 10. Two SRs/MAs included only RCTs. The current findings from SRs/MAs support with high evidence a significant increase in the short-term of maxillary dentoalveolar transversal dimensions after Rapid Maxillary Expansion (RME). The same effect is reported with moderate evidence after Slow Maxillary Expansion (SME). However, there is moderate evidence of a non-significant difference between the two expansion modalities concerning the short-term dentoalveolar effects. With both RME and SME, significant increase of skeletal transversal dimension in the short-term is reported, and the skeletal expansion is always smaller than the dentoalveolar. Even though dental relapse to some extent is present, long-term results of the dentoalveolar effects show an increase of the transversal dimension, supported by moderate evidence for RME and low evidence for SME. Skeletal long-term effects are reported only with RME, supported by very low evidence.

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“…Pertinent studies became available following the introduction of CBCT to dentistry-and orthodontics [38]-in the late 1990s [52]. More recently, systematic reviews of CBCT studies on RME have become available [5,9,21,27,37,39,[57][58][59]. Given the natural advantages of CBCT, these studies have mainly reported on changes in the transverse plane, but maxillary movements in caudal and anterior directions have also been described [27].…”

Section: Discussionmentioning

confidence: 99%

Differential treatment effects of two anchorage systems for rapid maxillary expansion: a retrospective cephalometric study

Hourfar¹,

Kinzinger²,

Ludwig

et al. 2016

J Orofac Orthop

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Three-dimensional analysis of effects of rapid maxillary expansion on facial sutures and bones: A systematic review

Abstract: CT imaging proved to be a useful tool for assessment of treatment effects in all three dimensions. The majority of the articles were judged to be of low quality, and therefore, no evidence-based conclusions could to be drawn from these studies.

Cited by 115 publications

References 20 publications

Asymmetric nasomaxillary expansion induced by tooth‐bone‐borne expander producing differential craniofacial changes

Asymmetric nasomaxillary expansion induced by tooth‐bone‐borne expander producing differential craniofacial changes

Dental and skeletal effects of palatal expansion techniques: a systematic review of the current evidence from systematic reviews and meta‐analyses

Differential treatment effects of two anchorage systems for rapid maxillary expansion: a retrospective cephalometric study

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