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

Altorkat, Y.; Khambay, Balvinder; McDonald, James; Cross, David; Brocklebank, Laetitia; Ju, Xiangyang

doi:10.1016/j.surge.2014.04.005

Cited by 25 publications

(36 citation statements)

References 25 publications

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“…In the present study, alar base width increased 1.98 mm in treated group compared with control, but the difference might not be clinically significant in the impact of the whole face, even though a large effect was detected between the groups for this variable. Other studies showed increase in nasal width after RME treatment in accordance with the present results …”

Section: Discussionsupporting

confidence: 93%

“…Additionally, the direct measurements on the face are necessarily accompanied by a distortion of the soft tissue or by a difficult identification of the landmarks . Due to the inaccuracy of these methods to quantify soft tissue changes, the proposal of alternative techniques has continuously grown as 3D analysis through stereophotogrammetry or cone beam computed tomography (CBCT) …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

3D facial soft tissue changes after rapid maxillary expansion on primary teeth: A randomized clinical trial

Fastuca

Campobasso

Zecca

et al. 2018

Orthod Craniofacial Res

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Section: Discussionsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

3D facial soft tissue changes after rapid maxillary expansion on primary teeth: A randomized clinical trial

Fastuca

Campobasso

Zecca

et al. 2018

Orthod Craniofacial Res

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“…3 Nasal width increase was reported in studies using serial frontal photographs 6 and anthropometric measurements. 7 Three-dimensional (3-D) evaluation of widths of the nasal base, 8,9 mouth, 8 and columella 9 increased with flattening of the nose 9 and upper lip elongation and thinning. 10 3-D stereophotogrammetry is a method of acquiring images using one or more pairs of simultaneously taken photographs.…”

Section: Introductionmentioning

confidence: 99%

Facial soft-tissue changes after rapid maxillary expansion analyzed with 3-dimensional stereophotogrammetry: A randomized, controlled clinical trial

Baysal

Öztürk

Şahan

et al. 2016

The Angle Orthodontist

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Objective: To evaluate three-dimensional (3-D) soft tissue facial changes following rapid maxillary expansion (RME) and to compare these changes with an untreated control group. Materials and Methods: Patients who need RME as a part of their orthodontic treatment were randomly divided into two groups of 17 patients each. Eligibility criteria included having maxillary transverse deficiency with crossbite, and to be in the normal range according to body mass index. In the first group (mean age = 13.4 ± 1.2 years), expansion was performed. The second group received no treatment initially and served as untreated control (mean age = 12.8 ± 1.3 years). Skeletal and soft tissue changes were evaluated using posteroanterior cephalograms and 3-D facial images. The primary outcome of this study was to assess the soft tissue changes. The secondary outcomes were evaluation hard tissue and soft tissue relations. Randomization was done with preprepared random number tables. Blinding was applicable for outcome assessment only. MANOVA, t-test, and correlation analyses were used (P = .05). Results: In both groups, there was a general trend of increase for the transverse skeletal measurements, but these increases were more limited in the control group. Alar base width was greater in the treatment group (P = .002). Pogonion soft tissue point (P = .022) was located more posteriorly in the expansion group compared with the control group. Conclusions: Soft tissue changes between groups were similar, except for the alar base, which became wider in the treatment group. Weak correlations were found between the skeletal and soft tissue changes.

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“…Although the dental and skeletal effects of expansion using dental or skeletal anchorage are well documented, little information is available concerning the overlying soft tissue changes following these treatment modalities. The authors who have analyzed soft tissue changes associated with RME and SARME were more interested with naso-maxillary region ( 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 ). They reported modifications in cheek, upper lip and nasal morphology which were explained majorly by the transversal enlargement of the maxilla, except for few studies ( 19 , 23 ) reporting that RME did not have significant clinical effects on the nose.…”

Section: Introductionmentioning

confidence: 99%

“…The authors who have analyzed soft tissue changes associated with RME and SARME were more interested with naso-maxillary region ( 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 ). They reported modifications in cheek, upper lip and nasal morphology which were explained majorly by the transversal enlargement of the maxilla, except for few studies ( 19 , 23 ) reporting that RME did not have significant clinical effects on the nose. Furthermore, it has been pointed out that the immediate maxillary advancement with downward and backward mandibular rotation during maxillary expansion could have an effect on the patients’ soft tissue profiles ( 24 , 25 , 26 , 27 , 28 , 29 , 30 ).…”

Section: Introductionmentioning

confidence: 99%

The Effects of Maxillary Expansion on the Soft Tissue Facial Profile

Aras¹,

Olmez²,

Akay³

et al. 2017

J Istanbul Univ Fac Dent

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Purpose:The aims of this retrospective study were to evaluate the possible changes in soft tissue facial profile induced by orthopedic rapid maxillary expansion (RME) and surgically assisted rapid maxillary expansion (SARME), and to correlate them with the underlying hard tissue alterations.Materials and Methods:16 patients who received bone borne SARME and 25 patients who were subjected to RME using metal cast splint hyrax appliance were analyzed retrospectively. This research was conducted on lateral cephalometric radiographs taken on 2 occasions: before expansion (T1) and at the beginning of any further orthodontic treatment (T2). Investigated lateral cephalometric parameters consisted of Holdaway soft tissue measurements with some supplementary soft tissue, skeletal and dental assessments. Results:The acquisition of T2 cephalograms which conforms to the initiation of further orthodontic treatment corresponded to 83.25±3.51 days for SARME and 85.68±4.37 days for RME after the expansion was completed. The only significant change in soft tissue profile of the SARME group was a decrease in upper lip thickness (p<0.05), whereas in the RME group, decrease in soft tissue facial profile angle and increase in H angle were found to be statistically significant (p<0.05 for each). For the RME group, the changes in soft tissue facial profile angle and H angle correlated only with the changes in SNB angle (p<0.05). Conclusion:While bone-borne SARME did not seem to possess the potential to alter soft tissue profile, tooth-borne RME caused a more convex soft tissue profile related to a reduction in SNB.

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

Abstract: Background: Rapid maxillary expansion (RME) is used to expand the narrow

Cited by 25 publications

References 25 publications

3D facial soft tissue changes after rapid maxillary expansion on primary teeth: A randomized clinical trial

3D facial soft tissue changes after rapid maxillary expansion on primary teeth: A randomized clinical trial

Facial soft-tissue changes after rapid maxillary expansion analyzed with 3-dimensional stereophotogrammetry: A randomized, controlled clinical trial

The Effects of Maxillary Expansion on the Soft Tissue Facial Profile

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