How To Get Rid Of But Chin: Clinical, Non-Surgical, And Surgical Solutions

Eliminating a cleft chin—colloquially referred to as a "but chin"—requires addressing the underlying anatomical cause, which is either an incomplete midline fusion of the mandibular bone or a diastasis of the mentalis muscle. Successful correction is achieved through non-surgical soft-tissue expansion using high G-prime dermal fillers, autologous fat grafting, or permanent surgical cleft repair. Choosing the correct clinical path depends on your desired longevity, anatomical structure, and tolerance for downtime.

Clinical Assessment & Pre-Treatment Checklist

Before deciding how to get rid of but chin structures, you must understand the underlying anatomy. A cleft chin is a genetically determined trait. During embryonic development, the left and right sides of the mandible (jawbone) or the overlying mentalis muscle fail to fuse completely at the midline. This leaves a structural depression or gap.

In some individuals, this cleft is strictly skeletal (a bony groove in the mandibular symphysis). In others, it is soft-tissue-dependent, caused by a tight fibrous band attaching the skin directly to the jawbone, pulling the tissue inward and forcing the mentalis muscle bundles to sit on either side of the cleft.

To determine the safest and most effective correction method for your facial structure, review the clinical preparation checklist below.

Pre-Treatment Planning Framework

• Diagnostic Self-Assessment: Identify if the cleft is dynamic (only visible when talking or smiling) or static (visible at rest). Dynamic clefts usually require botulinum toxin to relax the mentalis muscle, whereas static clefts require structural volumization.
• Clinical Imaging: Obtain 3D facial imaging (such as Vectra) or high-resolution lateral and anteroposterior photographs to assess projection, symmetry, and chin-to-lip ratios (Ricketts' E-line).
• Contraindication Screening: Ensure you have no active skin infections, dental abscesses, systemic autoimmune conditions, or uncontrolled bleeding disorders.
• Primary Budget Benchmarks:
  
  
  • Non-Surgical (Dermal Fillers): $800 – $1,800 USD (recurring every 9 to 24 months).
  • Autologous Fat Grafting: $3,000 – $5,000 USD (semi-permanent to permanent).
  • Surgical Cleft Repair / Genioplasty: $4,000 – $8,000 USD (permanent).
• Time Allocation: Allocate 30 minutes for office-based injections, 7 to 10 days of social downtime for fat grafting, or 14 to 21 days for surgical bone/muscle reconstruction.

The Step-by-Step Treatment Selection and Execution Workflow

Correcting a cleft chin requires a systematic approach. The clinical workflow below moves from diagnostic classification to temporary, semi-permanent, and permanent corrective procedures.

Step 1: Anatomical Classification and Plan Selection

An aesthetic clinician must first palpate the chin to identify whether the cleft is a deep skeletal depression or a superficial soft-tissue gap.

1. Palpation Test: Firmly press the index finger into the center of the cleft. If you feel a distinct hard ridge with two separate bony prominences, the cleft is skeletal. If the bone feels flat but the skin tissue folds inward, the cleft is soft-tissue or muscular.
2. Muscle Tension Test: Have the patient pucker their lips or mimic a pout. If the cleft deepens significantly, active mentalis muscle contraction is a primary driver.
3. Treatment Path Assignment:
   
   
   • For skeletal or deep soft-tissue clefts seeking immediate, non-invasive correction, proceed to Step 2 (Dermal Fillers).
   • For patients wanting a natural, autologous, long-term solution with moderate downtime, proceed to Step 3 (Fat Grafting).
   • For patients demanding a definitive, permanent structural elimination of the cleft, proceed to Step 4 (Surgical Repair).

Step 2: Non-Surgical Volumization Using High G-Prime Dermal Fillers

For those wondering how to get rid of but chin dimples without surgery, deep-plane dermal fillers are the gold standard. High G-prime (highly structural) fillers must be used to mimic bone and resist the high compressive forces of the overlying mentalis muscle.

1. Product Selection: Select a thick hyaluronic acid (such as Juvéderm Volux or Restylane Lyft) or a biostimulatory filler like Calcium Hydroxylapatite (Radiesse).
2. Aseptic Preparation: Cleanse the chin with chlorhexidine gluconate or isopropyl alcohol. Mark the precise entry point directly over the midline cleft.
3. Anesthesia: Apply a topical numbing cream (23% lidocaine / 7% tetracaine) for 20 minutes, or administer a bilateral mental nerve block for complete anesthesia.
4. Injection Technique (Supraperiosteal Bolus):
   
   
   • Insert a 27G needle or a 25G 1.5-inch cannula directly down to the periosteum (bone surface) at a 90-degree angle.
   • Aspirate for at least 5 seconds to ensure no intravascular placement.
   • Slowly deposit a bolus of 0.4 to 0.8 cc of filler directly onto the bone. This lifts the overlying soft tissue and fills the skeletal void.
5. Superficial Refinement: Withdraw the needle slightly to the deep subcutaneous plane and deposit a small linear thread (0.1 to 0.2 cc) to smooth out any remaining superficial skin tethering.
6. Molding: Firmly massage the injected material to ensure a smooth, seamless transition into the lateral aspects of the chin.

Pro-Tip: If the cleft skin is highly tethered to the underlying bone, a clinical subcision may be performed using a Nokor needle before filler injection. This releases the fibrous bands, allowing the filler to expand the tissue without resisting downward pull.

Step 3: Semi-Permanent Correction via Autologous Fat Transfer

Fat grafting offers an autologous alternative, transferring fat cells from your abdomen or outer thighs directly into the chin cleft.

1. Harvesting: Perform micro-liposuction under local tumescent anesthesia. Use a low-vacuum syringe system to harvest approximately 20 to 30 cc of viable fat from the donor site.
2. Purification: Spin the harvested fat in a centrifuge at 3,000 RPM for 3 minutes, or use a closed membrane filtration system (like Puregraft) to separate viable adipocytes from blood, free lipids, and tumescent fluid.
3. Cannulation: Create a tiny entry puncture at the submental crease (under the chin) using an 18G needle.
4. Infiltration (Micro-Tunneling Technique):
   
   
   • Using a blunt 1.2mm fat injection cannula, make multiple micro-tunnels through the mentalis muscle and subcutaneous layers of the cleft.
   • Deposit the purified fat in tiny, structural aliquots (0.1 cc per pass) as the cannula is withdrawn (retrograde injection).
   • Slightly overcorrect the area by 15% to 20%, as approximately 30% to 50% of transferred fat cells will be naturally resorbed by the body within the first 3 months.

Warning: Avoid aggressive post-operative massage or applying excessive pressure to the chin for 14 days following fat transfer. Compressive forces can disrupt the revascularization (neovascularization) process of the newly grafted fat cells, leading to premature cell death and graft failure.

Step 4: Permanent Surgical Cleft Repair (Mentoplasty / Genioplasty)

For a definitive cure, a plastic surgeon or oral and maxillofacial surgeon must surgically repair the cleft. This is performed either through soft-tissue rearrangement or bone modification.

1. Incision Access: The surgeon makes a 2 to 3 cm incision inside the mouth (intraoral incision) along the lower labial mucosa, entirely avoiding external facial scars.
2. Tissue Dissection: The surgeon dissects downward through the mucosa to expose the mentalis muscle and the periosteum of the jawbone.
3. Muscle Re-approximation (Myoplasty):
   
   
   • The surgeon dissects the fibrous tissue band that anchors the skin to the bone.
   • The separated left and right bellies of the mentalis muscle are mobilized.
   • Using strong, resorbable sutures (like 3-0 Vicryl), the surgeon pulls the muscle halves together at the midline, suturing them securely. This permanently closes the muscle gap.
4. Bony Modification (Optional Genioplasty): If a deep bony cleft is present, the surgeon can fill the groove using a biocompatible bone cement (hydroxyapatite or polymethylmethacrylate) or place a solid silicone anatomical chin implant to create a smooth, unified contour.
5. Closure: The intraoral incision is closed with dissolvable sutures, and a pressure dressing is applied externally to support the newly positioned tissues.

Comparing Clinical Modalities for Cleft Chin Reduction

The table below outlines the critical clinical and economic parameters of the primary methods used to get rid of a cleft chin.

Managing Post-Procedure Complications and Aesthetic Failures

Even under expert care, cosmetic interventions can yield suboptimal results. Understanding the root causes of these failures allows you to execute precise clinical remedies.

Scenario 1: Filler Migration or Midline Asymmetry After Non-Surgical Treatment

• Root Cause: The dermal filler was injected too superficially, or a low-viscosity (soft) filler was used. The high muscle pressure of the mentalis squeezed the filler out of the midline gap, causing it to pool on either side of the chin, which actually worsens the appearance of the cleft.
• Actionable Fix: For hyaluronic acid fillers, inject 15 to 30 units of hyaluronidase (Hylase or Vitrase) directly into the migrated product to dissolve it. Once resolved (approximately 3 to 7 days later), re-inject using a highly cohesive, high G-prime product (like Juvéderm Volux) strictly in the deep supraperiosteal plane.

Scenario 2: "Witch's Chin" Ptosis Following Surgical Muscle Detachment

• Root Cause: During surgical cleft repair, the mentalis muscle was detached from the mandible to release the fibrous band, but it was not securely re-anchored or sutured. Gravity pulls the loose muscle downward, resulting in a drooping, sagging chin contour.
• Actionable Fix: A revision surgery must be performed. The surgeon re-enters through the intraoral or submental pathway, mobilizes the descended mentalis muscle, and anchors it back to the mandibular bone using suture anchors or permanent surgical sutures (suspension suture technique).

Scenario 3: Persistent Dimpling During Facial Expressions (Dynamic Cleft)

• Root Cause: A dermal filler or fat graft was successfully placed to fill the static cleft, but the hyperactive mentalis muscle still pulls the skin inward when speaking, smiling, or eating.
• Actionable Fix: Administer 4 to 8 units of Botulinum Toxin Type A (such as Botox, Dysport, or Xeomin) distributed evenly into two injection points at the base of the mentalis muscle. This relaxes the dynamic pull, smoothing the skin over the newly filled area. Repeat this treatment every 3 to 4 months.

Frequently Asked Questions

Can you get rid of a cleft chin naturally with face exercises?

No, facial exercises cannot get rid of a cleft chin. A cleft chin is determined by skeletal bone structure or deep muscular separation, neither of which can be altered, fused, or filled in by targeted muscle contractions. In fact, repetitive facial exercises can hyper-activate the mentalis muscle, which can make the cleft appear deeper and more pronounced over time.

How much dermal filler is usually required to fill a butt chin?

For most mild to moderate clefts, 0.5 to 1.5 cc of structural dermal filler is sufficient. If the cleft is exceptionally deep or has strong fibrous tethering, a clinician may recommend a staged approach: injecting 1.0 cc during the first session, letting the tissue expand for 4 weeks, and then injecting an additional 0.5 to 1.0 cc during a follow-up refinement.

Is surgical cleft chin removal permanent?

Yes, surgical interventions such as a mentalis myoplasty (suturing the muscle gap) or a sliding genioplasty (bony advancement) provide a permanent, lifetime correction. Unlike dermal fillers, which break down naturally over time, surgical modifications restructure the underlying anatomy so the cleft cannot reform.

Does getting rid of a cleft chin change your overall face shape?

Minimizing or eliminating a cleft chin can significantly change your overall facial profile. Filling in the cleft elongates the chin slightly and creates a smoother, more unified contour. This can soften a strong or aggressive jawline, making the lower face appear more oval and balanced.

Professional Aesthetic Consultation

If you are ready to explore your options for eliminating a cleft chin, the next step is to schedule a comprehensive evaluation with a board-certified dermatologist, plastic surgeon, or maxillofacial specialist. A qualified provider will analyze your bone structure, muscle activity, and skin elasticity to build a personalized, long-lasting treatment plan.