Facial harmonization of the lower third is essential for achieving proportionate, youthful, and natural aesthetic results. Conventional filler techniques for this region often rely on bolus injections that may overcorrect the mental fat pad, leading to projection irregularities and compromised outcomes. This study introduces the "Inverted Easel" technique, a novel and minimally invasive method for mento-labial elongation using hyaluronic acid (HA) filler. The approach emphasizes anatomical precision through vector-based filler distribution to safely enhance vertical dimensions without volumetric excess. Nineteen patients underwent treatment with a single-entry cannula technique using UP Deep®, a biphasic, high-density HA filler. Retrograde linear threading was performed along four radial vectors originating from a central chin point—two medial and two lateral—creating a scaffold that mimics an inverted easel. No bolus injections were used. Facial assessments were conducted with Quantificare® 3D imaging software, measuring changes in mento-labial distance and lower third facial height at baseline and 30 days post-treatment. Of the 12 patients with complete imaging data, 10 demonstrated measurable improvements, with an average increase of 1.76 mm in mento-labial distance and 1.86 mm in lower third facial height. No serious adverse events were reported. Minor side effects, including transient edema and erythema, resolved within 72 hours. Patient-reported satisfaction was high, with 90% rating the outcome as "very satisfied" according to the Global Aesthetic Improvement Scale (GAIS). The Inverted Easel technique provides a safe, reproducible, and anatomically respectful strategy for lower facial harmonization. Its refined injection design enhances structural support while minimizing risks of overcorrection. These results suggest that the method is well-suited for subtle yet impactful lower face elongation, particularly in patients seeking balanced, natural results.
Published in | Advances in Surgical Sciences (Volume 13, Issue 1) |
DOI | 10.11648/j.ass.20251301.13 |
Page(s) | 11-16 |
Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
Copyright |
Copyright © The Author(s), 2025. Published by Science Publishing Group |
Lower Face, Mento-labial, Hyaluronic Acid, Harmonization
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APA Style
Tamura, B. M., Fonseca, L. P. C., Fonseca, E. L., Viana, R. M. D. M., Uchida, E., et al. (2025). The Inverted Easel: A Novel Technique for Mento-Labial Harmonization Using Hyaluronic Acid Filler. Advances in Surgical Sciences, 13(1), 11-16. https://doi.org/10.11648/j.ass.20251301.13
ACS Style
Tamura, B. M.; Fonseca, L. P. C.; Fonseca, E. L.; Viana, R. M. D. M.; Uchida, E., et al. The Inverted Easel: A Novel Technique for Mento-Labial Harmonization Using Hyaluronic Acid Filler. Adv. Surg. Sci. 2025, 13(1), 11-16. doi: 10.11648/j.ass.20251301.13
@article{10.11648/j.ass.20251301.13, author = {Bhertha Miyuki Tamura and Larissa Pierri Carvalho Fonseca and Eduardo Leite Fonseca and Renata Mirelli de Melo Viana and Erika Uchida and Ana Carolina Junqueira Ferolla and Daniela Laura de Mello Junqueira}, title = {The Inverted Easel: A Novel Technique for Mento-Labial Harmonization Using Hyaluronic Acid Filler }, journal = {Advances in Surgical Sciences}, volume = {13}, number = {1}, pages = {11-16}, doi = {10.11648/j.ass.20251301.13}, url = {https://doi.org/10.11648/j.ass.20251301.13}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ass.20251301.13}, abstract = {Facial harmonization of the lower third is essential for achieving proportionate, youthful, and natural aesthetic results. Conventional filler techniques for this region often rely on bolus injections that may overcorrect the mental fat pad, leading to projection irregularities and compromised outcomes. This study introduces the "Inverted Easel" technique, a novel and minimally invasive method for mento-labial elongation using hyaluronic acid (HA) filler. The approach emphasizes anatomical precision through vector-based filler distribution to safely enhance vertical dimensions without volumetric excess. Nineteen patients underwent treatment with a single-entry cannula technique using UP Deep®, a biphasic, high-density HA filler. Retrograde linear threading was performed along four radial vectors originating from a central chin point—two medial and two lateral—creating a scaffold that mimics an inverted easel. No bolus injections were used. Facial assessments were conducted with Quantificare® 3D imaging software, measuring changes in mento-labial distance and lower third facial height at baseline and 30 days post-treatment. Of the 12 patients with complete imaging data, 10 demonstrated measurable improvements, with an average increase of 1.76 mm in mento-labial distance and 1.86 mm in lower third facial height. No serious adverse events were reported. Minor side effects, including transient edema and erythema, resolved within 72 hours. Patient-reported satisfaction was high, with 90% rating the outcome as "very satisfied" according to the Global Aesthetic Improvement Scale (GAIS). The Inverted Easel technique provides a safe, reproducible, and anatomically respectful strategy for lower facial harmonization. Its refined injection design enhances structural support while minimizing risks of overcorrection. These results suggest that the method is well-suited for subtle yet impactful lower face elongation, particularly in patients seeking balanced, natural results. }, year = {2025} }
TY - JOUR T1 - The Inverted Easel: A Novel Technique for Mento-Labial Harmonization Using Hyaluronic Acid Filler AU - Bhertha Miyuki Tamura AU - Larissa Pierri Carvalho Fonseca AU - Eduardo Leite Fonseca AU - Renata Mirelli de Melo Viana AU - Erika Uchida AU - Ana Carolina Junqueira Ferolla AU - Daniela Laura de Mello Junqueira Y1 - 2025/05/26 PY - 2025 N1 - https://doi.org/10.11648/j.ass.20251301.13 DO - 10.11648/j.ass.20251301.13 T2 - Advances in Surgical Sciences JF - Advances in Surgical Sciences JO - Advances in Surgical Sciences SP - 11 EP - 16 PB - Science Publishing Group SN - 2376-6182 UR - https://doi.org/10.11648/j.ass.20251301.13 AB - Facial harmonization of the lower third is essential for achieving proportionate, youthful, and natural aesthetic results. Conventional filler techniques for this region often rely on bolus injections that may overcorrect the mental fat pad, leading to projection irregularities and compromised outcomes. This study introduces the "Inverted Easel" technique, a novel and minimally invasive method for mento-labial elongation using hyaluronic acid (HA) filler. The approach emphasizes anatomical precision through vector-based filler distribution to safely enhance vertical dimensions without volumetric excess. Nineteen patients underwent treatment with a single-entry cannula technique using UP Deep®, a biphasic, high-density HA filler. Retrograde linear threading was performed along four radial vectors originating from a central chin point—two medial and two lateral—creating a scaffold that mimics an inverted easel. No bolus injections were used. Facial assessments were conducted with Quantificare® 3D imaging software, measuring changes in mento-labial distance and lower third facial height at baseline and 30 days post-treatment. Of the 12 patients with complete imaging data, 10 demonstrated measurable improvements, with an average increase of 1.76 mm in mento-labial distance and 1.86 mm in lower third facial height. No serious adverse events were reported. Minor side effects, including transient edema and erythema, resolved within 72 hours. Patient-reported satisfaction was high, with 90% rating the outcome as "very satisfied" according to the Global Aesthetic Improvement Scale (GAIS). The Inverted Easel technique provides a safe, reproducible, and anatomically respectful strategy for lower facial harmonization. Its refined injection design enhances structural support while minimizing risks of overcorrection. These results suggest that the method is well-suited for subtle yet impactful lower face elongation, particularly in patients seeking balanced, natural results. VL - 13 IS - 1 ER -