Sleep bruxism refers to the unconscious habit of clenching or grinding teeth during sleep — studies show approximately 10-15% of adults have nocturnal bruxism. Nighttime grinding not only causes severe enamel wear, tooth sensitivity, and temporomandibular joint (TMJ) pain, but also leads to masseter muscle over-enlargement — the masseter is the chewing muscle at the jaw angle, and long-term nocturnal over-contraction makes it increasingly hypertrophic, widening the jaw angle and changing the face from oval to square. Causes of sleep bruxism are multifactorial: (1) Psychological stress — anxiety, tension, and high stress keep the brain excited during sleep, causing unconscious chewing muscle contraction. (2) Malocclusion — abnormal bite relationship keeps chewing muscles under high tension at rest. (3) Sleep apnea — bruxism incidence is significantly higher in sleep apnea patients, possibly the brain attempting to open the airway through chewing muscle activity. (4) Lifestyle factors — excessive caffeine, pre-sleep alcohol, and smoking aggravate bruxism. Rappoel Dermatology near Gangnam Station, Seoul, uses Coretox — precise masseter injection to relax overactive chewing muscles, with 3-day onset for grinding reduction and masseter slimming.
Technical Principles of Coretox Bruxism Treatment
- Botox relaxes the masseter: Coretox is botulinum toxin type A — when injected into the masseter, it blocks acetylcholine release at the neuromuscular junction, moderately relaxing the overactive muscle. After relaxation, grinding force and frequency significantly decrease — clinical data shows 50-80% reduction in grinding episodes at 1-2 weeks
- Coretox Korean-origin high-purity advantage: Coretox is 150kDa high-purity toxin with unnecessary complex proteins removed, reducing antibody formation and resistance risk. Masseter treatment requires sufficient dose for effective relaxation — high-purity formulation ensures sustained efficacy with long-term repeated injections
- Fast onset (2-3 days): Coretox clinical data shows average onset of 2-3 days — the masseter begins relaxing at 3-5 days, with optimal results at 1-2 weeks. Patients typically notice grinding reduction and masseter softening within one week
- Dual effect — grinding treatment + masseter slimming: Coretox masseter injection achieves two goals simultaneously: (1) Relaxing the masseter reduces nocturnal grinding force and frequency, protecting teeth and TMJ; (2) Post-relaxation masseter gradually atrophies and shrinks, narrowing the jaw angle from wide to slim, restoring the face from square to oval
- Preservative-free hypoallergenic formulation: Coretox contains no animal-derived proteins or human serum albumin — reducing allergic reaction risk
Treatment Strategies for Different Bruxism Types
- Stress-related bruxism (most common): Daytime stress, anxiety, with nocturnal unconscious grinding. Masseter typically mild to moderately enlarged. Strategy: inject Coretox 25-40 units per side (bilateral total 50-80 units), relaxing the masseter to improve grinding. Recommend concurrent stress management (exercise, meditation) for enhanced efficacy
- Severe masseter hypertrophy type: Long-term grinding causing severe masseter enlargement, with obviously widened jaw angle forming a square face. Strategy: inject Coretox 40-60 units per side (bilateral total 80-120 units), higher dose ensuring sufficient relaxation and atrophy. Reassess masseter reduction at 3-4 months, supplement if needed
- TMJ pain type: Grinding accompanied by TMJ pain, limited mouth opening, joint clicking. Strategy: Beyond masseter injection, inject appropriate Coretox into the temporalis and lateral pterygoid (additional 10-20 units per side), relaxing the muscle groups involved in chewing. Recommend concurrent dental evaluation for occlusion issues
- Severe enamel wear type: Bruxism has caused severe enamel wear and tooth sensitivity. Strategy: Coretox masseter injection (30-50 units per side), reducing nocturnal grinding force to protect remaining teeth. Recommend concurrent dental night guard fabrication for dual tooth protection
- Sleep apnea-related type: Bruxism may be related to sleep apnea — the brain attempting to open the airway through chewing muscle activity. Strategy: Coretox masseter injection to improve grinding (25-40 units per side), but concurrent ENT or sleep medicine evaluation for sleep apnea is needed. If sleep apnea is treated (e.g., CPAP), bruxism typically improves significantly
Rappoel Bruxism Coretox Injection Treatment Protocol
- Bruxism assessment and plan design (10 min): Inquire about grinding habits (frequency, duration, TMJ pain) → examine tooth wear degree → palpate masseter size and firmness → photograph masseter morphology → establish injection plan (dosage, points)
- Disinfection preparation (3 min): Facial cleansing → alcohol swab preparation of jaw angle masseter area → mark injection points (3-5 points per side, at the thickest masseter area in the safe zone, avoiding the marginal mandibular branch of the facial nerve)
- Precise injection (5-8 min): 32G ultra-fine needle → 3-5 injection points per side → 8-15 units Coretox per point → deep masseter injection (intramuscular) → gentle pressure after injection → bilateral total 50-120 units (adjusted by masseter hypertrophy degree)
- Immediate assessment and guidance (5 min): Patient clenches to confirm normal masseter contraction → post-care instructions (avoid pressing injection area, avoid lying flat for 4 hours, avoid strenuous exercise for 24 hours, avoid massager massage for 1 week) → 2-week follow-up
The entire bruxism Coretox injection takes about 15-20 minutes, with onset at 3-5 days, optimal results at 1-2 weeks, lasting 3-4 months. Located 3 minutes from Gangnam Station Exit 10, with seamless English and Chinese consultation.
Frequently Asked Questions
How long do Coretox bruxism treatment results last? How often should I get it?
Coretox bruxism treatment typically lasts 3-4 months — the masseter is a chewing muscle with frequent daily activity (eating, speaking, swallowing), so neuromuscular junction regeneration is relatively fast. Rappoel recommends: injection every 3-4 months for maintenance. With regular treatment, some patients find baseline masseter tone gradually decreases, grinding frequency reduces, allowing extension to 4-5 month intervals. Regarding resistance: long-term repeated injections may produce neutralizing antibodies — incidence approximately 1-5%. Coretox’s high-purity formulation theoretically reduces antibody risk. Minimum 3-month intervals recommended with lowest effective dose.
Will Coretox bruxism treatment affect eating and speaking?
At correct dosage, eating and speaking are not affected. Rappoel injects the masseter (main chewing muscle) — post-injection moderate relaxation does not eliminate chewing function. At 1-2 weeks, patients may feel slightly weakened when biting hard foods (nuts, steak) — this is a normal effect. Precautions: (1) First treatment starts with standard dose (25-40 units per side), adjusted after assessing response. (2) Avoid excessive injection — over 60 units per side may over-relax causing chewing weakness. (3) No injection of orbicularis oris or tongue muscles — does not affect speaking or swallowing. Most patients have completely normal daily life after injection.
Is Coretox bruxism treatment the same as masseter slimming?
They are essentially the same treatment — both are Coretox masseter injection — but with different focus: (1) Bruxism treatment as primary goal — focus on reducing nocturnal masseter over-contraction, dose adjusted by grinding severity (25-50 units per side), with masseter reduction as a bonus. (2) Masseter slimming as primary goal — focus on masseter atrophy and jaw angle narrowing, dose adjusted by hypertrophy degree (30-60 units per side), with grinding reduction as a bonus. The injection technique, medication, and mechanism are identical — only the patient’s primary concern differs. Many patients have both grinding and masseter hypertrophy, and one treatment addresses both. Rappoel physicians adjust dosage based on the patient’s primary concern during assessment.
What other treatments are available for bruxism besides Coretox?
Bruxism treatment options depend on cause and severity: (1) Coretox injection — relaxes masseter to reduce grinding force while slimming the masseter. Non-invasive, 3-day onset, lasts 3-4 months. Suitable for most bruxism patients. (2) Night guard — a custom dental transparent bite plate worn during sleep to prevent direct tooth contact and wear. Requires daily wear. (3) Stress management — cognitive behavioral therapy, meditation, exercise to reduce stress and anxiety. (4) Occlusal adjustment — if malocclusion causes grinding, dental bite adjustment or orthodontic treatment. (5) Sleep apnea treatment — if bruxism is related to sleep apnea, CPAP treatment typically improves grinding. Rappoel recommends: Coretox + night guard is the best combination — Coretox reduces grinding force at the muscle level, night guard protects teeth at the physical level.
How does Coretox differ from other botulinum toxins for bruxism?
Key differences between Coretox and other brands: (1) Purity — Coretox is 150kDa high-purity toxin with complex proteins removed; Botox is 900kDa complex. (2) Onset speed — Coretox averages 2-3 days; others typically 5-7 days. Bruxism patients usually want rapid improvement, making Coretox advantageous. (3) Diffusion range — Coretox has smaller diffusion, more precise in masseter injection (reducing risk of spreading to surrounding muscles causing smile asymmetry). (4) Formulation — Coretox contains no animal-derived proteins or albumin, lower allergy risk. (5) Dose — Coretox dosing is essentially equivalent to Botox (1:1 conversion). Both last similarly (3-4 months). Rappoel selects based on patient needs — Coretox recommended for those wanting fast results, precise control, or experiencing diminished effect from other brands.
Nighttime grinding wearing teeth and enlarging masseter? Rappoel Coretox bruxism treatment — 3-day onset protecting teeth and slimming masseter!
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