Nasolabial changes after two different approaches for surgically assisted rapid maxillary expansion

Alves, Nilton; Oliveira, Talles Fernando Medeiros de; Pereira-Filho, Valfrido Antônio; Gonçales, Eduardo Sánches; Gabrielli, Marisa Aparecida Cabrini; Pásseri, Luís Augusto

doi:10.1016/j.ijom.2017.04.011

Cited by 14 publications

(6 citation statements)

References 18 publications

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“…Secondly, the vertical philtrum height significantly increased, as a result of superior positioning of the sub-nasale area. Contradictory findings were reported by Alves et al [ 11 ], who concluded that nasal length and projection and upper-lip length (philtrum height in our study) were not altered by SARME .…”

Section: Discussionsupporting

confidence: 84%

An evaluation of three-dimensional facial changes after surgically assisted rapid maxillary expansion (SARME): an observational study

2022

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Background The abnormal facial features in maxillary transverse deficiency (MTD) are minimal and limited to a deficiency of the middle facial third, narrow nares and nasal base, and deepened nasolabial folds. The surgical expansion of the narrow maxilla has most obvious effects on widening of the maxillary dental arch and expansion of the maxillary and palatal structures in the transverse plane, however sagittal changes also occurs. The purpose of this observational study was to evaluate the three-dimensional (3D) facial soft tissue changes following surgically assisted rapid maxillary expansion (SARME). Methods In 15 skeletally mature patients with severe maxillary transverse deficiency, the planned maxillary expansion (on average 8.8 mm ± 2.3 mm) was achieved with a bone-borne palatal distractor. The 3D optical scans of the facial surface were obtained before and six months after SARME. In the first part, we defined different anatomical landmarks on both scans and compared cephalometric measurements. In the second part, we registered both 3D scans in the same workplace using the regional best-fit method (forehead, supraorbital and nasal root regions were selected for the superimposition) and conducted surface analysis. Results The largest differences between the pre- and post-operation scans were observed in the paranasal and cheek area (1.4 ± 1.0 mm). Significant differences occurred for an increased nasal width, a decreased upper-face height with an unchanged lower height, an increased vertical philtrum height and an increased nasolabial angle. A significant increase in the facial profile angle was also observed, resulting in an increased facial convexity and anterior displacement of the upper-lip area. Conclusions The widening of the nose and increased projection in the cheek and paranasal area in the lateral direction after maxillary expansion were confirmed; moreover, facial convexity increases, reflecting the underlying advancement of the maxilla.

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Section: Discussionsupporting

confidence: 84%

An evaluation of three-dimensional facial changes after surgically assisted rapid maxillary expansion (SARME): an observational study

2022

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“…Secondly, the vertical philtrum height signi cantly increased, as a result of superior positioning of the sub-nasale area. Contradictory ndings were reported by Alves and colleagues (19), who concluded that nasal length and projection and upper-lip length (philtrum height in our study) were not altered by SARME.…”

Section: Discussionsupporting

confidence: 78%

An evaluation of three-dimensional facial changes after surgically assisted rapid maxillary expansion (SARME)

Zupan

Hren

Verdenik

2021

Preprint

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Background: The purpose of the study was to evaluate the three-dimensional (3D) facial changes following surgically assisted rapid maxillary expansion (SARME). In 15 skeletally mature patients with maxillary transverse deficiency the planned maxillary expansion (on average 8.8 mm ± 2.3 mm) was achieved with bone-borne palatal distractor. The 3D optical scans of the facial surface were obtained before and 6 months after SARME and compared with cephalometric and regional analysis to evaluate the soft-tissue changes. Findings. The largest differences between the pre- and post-operation scans were observed for the paranasal and cheek area (1.4 ± 1.0 mm) in the lateral direction with a soft-to-hard tissue ratio of 0.22. Significant differences occurred for an increased nasal width, a decreased upper-face height with an unchanged lower height, an increased vertical philtrum height and an increased nasolabial angle. A significant increase in the facial profile angle was also observed, resulting in an increased facial convexity and anterior displacement of the upper-lip area. Conclusions. We have confirmed the widening of the nose and increased projection in the cheek and paranasal area in the lateral direction after maxillary expansion, while we found facial convexity increases, reflecting the underlying advancement of the maxilla.

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“…SARPE on the other hand, is performed in older adolescents and adults and changes after treatment cannot be related to growth. The soft tissue effects of SARPE have been studied extensively and the most recurring nding is widening of the nose after treatment, both in the short and in the longer-term, with an increase of the alar width ranging from 1.1 mm to 3.09 mm [4,5,[26][27][28][29][30]. Furthermore, changes in the paranasal regions and an increased projection of the cheeks were often reported [5,26,31], whereas some studies also found a slight retro-positioning of the upper lip [31], a downward displacement of soft tissue pogonion [27] and increased facial convexity [26].…”

Section: Discussionmentioning

confidence: 99%

What is the impact of Miniscrew-Assisted Rapid Palatal Expansion on the midfacial soft tissues? A prospective three-dimensional stereophotogrammetry study

Krijt

Kapetanović

Sijmons

et al. 2022

Preprint

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Objectives To evaluate the midfacial soft tissue changes of the face in patients treated with Miniscrew-Assisted Rapid Palatal Expansion (MARPE). Materials & Methods 3D facial images and intra-oral scans (IOS) of 29 patients (22 women, 7 men, mean age 25.9 years) were obtained before expansion (T0), immediately after completion of expansion (T1), and one year after expansion (T2). The 3D images were superimposed and two 3D distance maps were generated to measure the midfacial soft tissue changes: immediate effects between timepoints T0-T1 and overall effects between T0-T2. Changes of the alar width were also measured and dental expansion was measured as the interpremolar width (IPW) on IOS. Results The soft tissue in the regions of the nose, left of philtrum, right of philtrum and upper lip tubercle demonstrated a statistically significant anterior movement of 0.30mm, 0.93mm, 0.74mm and 0.81mm, respectively (p < 0.01) immediately after expansion (T0-T1). These changes persisted as an overall effect (T0-T2). The alar width initially increased by 1.59mm, and then decreased by 0.08mm after one year, but this effect was not significant. The IPW increased by 4.58mm and remained stable one year later. There was no significant correlation between the increase in IPW and alar width (r = 0.35, p = 0.06). Conclusions Our findings indicate that MARPE results in significant but small changes of the soft tissue in the peri-oral and nasal regions. However, the clinical importance of these findings is limited. Clinical Relevance MARPE is an effective treatment modality to expand the maxilla without notably affecting the midfacial soft tissues.

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Nasolabial changes after two different approaches for surgically assisted rapid maxillary expansion

Cited by 14 publications

References 18 publications

An evaluation of three-dimensional facial changes after surgically assisted rapid maxillary expansion (SARME): an observational study

An evaluation of three-dimensional facial changes after surgically assisted rapid maxillary expansion (SARME): an observational study

An evaluation of three-dimensional facial changes after surgically assisted rapid maxillary expansion (SARME)

What is the impact of Miniscrew-Assisted Rapid Palatal Expansion on the midfacial soft tissues? A prospective three-dimensional stereophotogrammetry study

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