Skeletal and dental changes in the sagittal, vertical, and transverse dimensions after rapid palatal expansion

Chung, Chun-Hsi; Font, Blanca

doi:10.1016/j.ajodo.2003.10.035

Cited by 213 publications

(209 citation statements)

References 14 publications

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“…The effects of RME on non-CLP patients have been well established both clinically 1 and experimentally using a finite element model (FEM). [2][3][4] Both clinical [5][6][7] and FEM 8,9 studies on clefts have shown asymmetric response of the cleft and non-cleft segments with expansion forces.…”

Section: Introductionmentioning

confidence: 99%

Biomechanical response of the maxillofacial skeleton to transpalatal orthopedic force in a unilateral palatal cleft

Gautam¹,

Zhao²,

Patel³

2011

The Angle Orthodontist

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Objectives: To assess the skeletal and dental effects of rapid maxillary expansion in a patient with unilateral cleft deformity of secondary palate and alveolus using the finite element method. Materials and Methods: A patient-specific composite skull model was developed from a patient computed tomographic scan and a surface scan of the patient's maxillary cast using MIMICS imaging analysis software. For volumetric meshing and the finite element analysis, Abaqus (6.7) was used. Results: The typical wedge-shaped opening that occurs after RME, seen in non-cleft patients, is not seen in cleft patients. A clockwise rotation of the maxilla as a result of maxillary expansion was evident. The areas of maximum stress were the intact primary palate region, inferior orbital foramen of the non-cleft and the cleft sides, and the zygomatic buttress of the cleft side. During expansion, the intact primary palate showed high stress and acted as a region of major resistance, followed by the zygomatic buttress on the cleft side. Conclusions: Clinicians should consider a need for customization of expansion therapy for cleft patients depending on the patient's age, the type of cleft present (primary or secondary palate), and the desired area of expansion (anterior or posterior). (Angle Orthod. 2011;81:503-509.)

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Section: Introductionmentioning

confidence: 99%

Biomechanical response of the maxillofacial skeleton to transpalatal orthopedic force in a unilateral palatal cleft

Gautam¹,

Zhao²,

Patel³

2011

The Angle Orthodontist

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“…[1][2][3] These appliances produce both orthopedic and orthodontic effects by tipping the posterior teeth buccally and enable dental extrusion and lateral rotations of the alveolar segments. [4][5][6] These effects of RME cause downward and backward rotation of the mandible and increased facial height. 2,7,8 In orthodontic evaluation, the most common ways to determine the soft tissue effects of the treatment are soft tissue analysis of the patient's cephalometric radiographs and photographs.…”

Section: Introductionmentioning

confidence: 99%

Effects of different rapid maxillary expansion appliances on facial soft tissues using three-dimensional imaging

Altındiş

Toy

Başçiftçi

2015

The Angle Orthodontist

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Objective: To determine three-dimensional (3D) effects of three different rapid maxillary expansion (RME) appliances on facial soft tissues. Materials and Methods: Forty-two children (18 boys, 24 girls) who required RME treatment were included in this study. Patients were randomly divided into three equal groups: banded RME, acrylic splint RME, and modified acrylic splint RME. For each patient, 3D images were obtained before treatment (T1) and at the end of the 3-month retention (T2) with the 3dMD system. Results: When three RME appliances were compared in terms of the effects on the facial soft tissues, there were no significant differences among them. The mouth and nasal width showed a significant increase in all groups. Although the effect of the acrylic splint RME appliances on total face height was less than that of the banded RME, there was no significant difference between the appliances. The effect of the modified acrylic splint appliance on the upper lip was significant according to the volumetric measurements (P , .01). Conclusions: There were no significant differences among three RME appliances on the facial soft tissues. The modified acrylic splint RME produced a more protrusive effect on the upper lip. (Angle Orthod. 2016;86:590-598.)

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“…9 One of the most noticeable dental effects during RME activation is a diastema between the upper central incisors but tipping of the maxillary posterior teeth and alveolar processes laterally have also been reported. [9][10][11][12] Since the maxillary bones contribute significantly to nasal cavityÕs anatomical structure, the effects of RME are not just limited to the maxilla but extend to the surrounding nasal structures. [13][14][15][16] Conventional tomography has been used to evaluate volume changes in the nasal cavity after RME.…”

Section: Introductionmentioning

confidence: 99%

Immediate effects of rapid maxillary expansion on the naso-maxillary facial soft tissue using 3D stereophotogrammetry

et al. 2016

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Skeletal and dental changes in the sagittal, vertical, and transverse dimensions after rapid palatal expansion

Cited by 213 publications

References 14 publications

Biomechanical response of the maxillofacial skeleton to transpalatal orthopedic force in a unilateral palatal cleft

Biomechanical response of the maxillofacial skeleton to transpalatal orthopedic force in a unilateral palatal cleft

Effects of different rapid maxillary expansion appliances on facial soft tissues using three-dimensional imaging

Immediate effects of rapid maxillary expansion on the naso-maxillary facial soft tissue using 3D stereophotogrammetry

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