ほうれい線治療 – UE美容外科クリニック
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Nasolabial Folds Treatment: Complete Guide to Smoothing Smile Lines
ほうれい線(スマイルライン、笑いジワとも呼ばれる)は、鼻の横から口角にかけて伸びる深いシワです。加齢とともに、ボリュームの減少、皮膚のたるみ、顔の中央部分のたるみなどにより、自然に深くなります。
顔の構造上、シワは正常な部分ですが、多くの人が、顔が老けて見えたり、疲れて見えたり、重く見えたりすると感じています。幸いなことに、現代の美容治療では、顔の構造、シワの程度、年齢に応じて複数の解決策が用意されています。
このガイドでは、ほうれい線の主な治療法と適切な治療法の選び方について詳しく説明します。
What Causes Nasolabial Folds?
Nasolabial folds form and deepen due to:
✔ 中顔面のボリューム減少
Cheek fat pads descend, creating a shadow around the fold.
✔ Skin aging
コラーゲンとエラスチンが減少し、シワが目立つようになります。
✔ 繰り返し表現
Smiling and laughing contribute over time.
✔ Genetics
より早く強いシワが現れる人もいます。
✔ Bone resorption
Aging reduces underlying structural support.
✔ 脂肪減少
Jowling and lower-face sagging add heaviness.
原因を理解することで、適切な治療法を決定するのに役立ちます。
Best Nasolabial Fold Treatments
Korean and international clinics use a combination approach to treat folds, since lifting, volumizing, and smoothing often work better than a single method.
1. Dermal Fillers (Most Popular)
Hyaluronic acid fillers such as Restylane or Juvederm add volume to soften the folds.
利点:
- 即時の結果
- Natural softening effect
- 低侵襲
- Customizable
最適な用途:
軽度から中程度の折り目。
長寿:
製品に応じて6〜18か月。
注意: 最善のテクニックは、しわに直接注入するだけでなく、下向きの引っ張りを減らすために顔の中央部分も持ち上げることです。
2. Midface / Cheek Fillers (Structural Approach)
Instead of filling the fold, adding volume to the cheek and deep midface restores natural lift.
Why it works:
Because many nasolabial folds deepen due to cheek descent, not skin folding itself.
利点:
- 折り目を持ち上げる
- Restores youthful contour
- Avoids overfilling the nasolabial area
This technique is widely used in Korea.
3. 脂肪注入(ボリューム持続)
Autologous fat is injected to soften folds and support the midface.
利点:
- Long-lasting
- 自然な質感
- Excellent for moderate to deep folds
- Improves skin quality
最適な用途:
長期的な矯正を希望する30代〜50代の患者様。
4. Thread Lifting (Subtle Lift)
PDO or PCL threads lift sagging tissues upward.
利点:
- Reduces heaviness around folds
- Non-surgical
- Improves jawline and midface at the same time
最適な用途:
Mild sagging and early folds.
5. RF Microneedling (Texture + Tightening)
Devices such as Secret RF and Morpheus8 improve deep lines and skin elasticity.
利点:
- Stimulates collagen
- Tightens lower face
- Reduces line depth
最適な用途:
Fine-to-moderate folds.
6. Laser Treatments (Skin Rejuvenation)
Fractional CO₂, Er:YAG, and resurfacing lasers help soften the appearance.
利点:
- 肌の質感を改善する
- Smooths superficial wrinkles
- Stimulates collagen
最適な用途:
Fine lines + overall skin aging.
7. ボトックス(選択的使用)
Botox can be used sparingly around the nasolabial area to reduce muscle pull, but it must be used very carefully.
Best For:
Softening dynamic wrinkles.
8. Surgical Options (For Severe Folds)
If folds are deep due to structural sagging, surgery may be the most effective option.
外科的治療の選択肢には以下のものがあります:
- ディーププレーンフェイスリフト(ひどいシワに最適)
- SMAS Facelift
- Midface Lift
- 脂肪の再配置
- 下顔面リフト
利点:
- Most powerful improvement
- 若々しい中顔面を回復
- 長期的な効果
Best for patients 40s–70s with significant sagging.
あなたにとって最適な治療法はどれですか?
✔ Mild folds:
Fillers, RF microneedling, laser tightening.
✔ Moderate folds:
Midface fillers + nasolabial fillers, thread lifting, fat grafting.
✔ Deep folds:
Fat grafting, structural fillers, or facelift options.
✔ ひどいたるみと折り目:
Deep plane facelift or SMAS facelift.
Combination Approach (Most Effective)
Most patients see the best results from combining:
- Midface lifting
- ボリュームの置き換え
- 肌の滑らかさ
例:頬フィラー+鼻唇フィラー+RFマイクロニードリング、脂肪移植+スレッドリフト、ディーププレーンフェイスリフト+脂肪再配置
Korea is known for layered, natural facial rejuvenation.
最後に
Nasolabial folds are a normal part of facial anatomy, but modern aesthetic treatments can significantly soften, lift, and rejuvenate the smile lines. Whether you prefer fillers, fat grafting, thread lifting, skin tightening, or surgical lifting, the right plan depends on your anatomy and aging pattern.
