Botox for the MasseterPractical course — jawline slimming & bruxism
A focused practical course in masseter Botox for two of the highest-demand indications in modern aesthetic and dental practice: aesthetic jawline slimming and bruxism management.
Designed for registered medical and dental professionals — proper anatomy, palpation, dose logic and complication awareness, taught with one supervised live treatment.
New to lower-face Botox? Start with the online course.
Suitable for beginners with foundation Botox knowledge — full theory, dose logic and assessment, no in-clinic day required. Progress to this practical course when you are ready.
Explore the online courseIllustrative trend — masseter Botox is one of the fastest-growing aesthetic & dental indications in the UK.
About this course
Masseter Botox sits at the intersection of aesthetics and function. It is one of the most-requested treatments by patients who want a softer, more oval lower face, and it is also the single most useful pharmacological intervention available to dentists managing bruxism, masseter hypertrophy and certain forms of temporomandibular pain.
Done well, it is a deeply satisfying treatment with predictable, durable results. Done badly, it produces smile asymmetry, paradoxical bulging, accidental risorius weakness and patient regret. The difference is almost entirely a matter of palpation, depth and dose logic — and that is exactly what this course teaches.
Online theory takes you through the surface and deep anatomy of the masseter, the relationship to the parotid duct and the buccal branch of the facial nerve, and the dose ranges for both aesthetic slimming and bruxism. The in-clinic practical at our Harley Street facility is then dedicated entirely to one supervised live treatment per delegate, with consultant-led palpation coaching at the chair.
This module is part of the broader Oro-Facial Pain Botox Course. If you prefer a theory-only path first, the online Masseter Botox course is open to beginners with foundational Botox training.
What you will learn
- Surface and deep anatomy of the masseter, including the deep belly
- Differentiating masseter hypertrophy from buccal fat or parotid pathology
- Palpation technique for the safe injection grid
- Dose ranges for aesthetic slimming versus bruxism
- Avoidance zones for risorius and the buccal branch of the facial nerve
- Recognising and managing paradoxical bulging
- Patient selection and realistic outcome counselling
- Consent, photography and follow-up planning
Curriculum
Online theory module
- Functional anatomy of the masticatory muscles
- Bruxism pathophysiology and clinical assessment
- Aesthetic lower-face proportions and patient assessment
- Brand and dilution comparisons with dose-conversion logic
- Complication library: smile asymmetry, paradoxical bulging, parotid involvement
- Photography, consent and outcome documentation
In-clinic practical session
- Live patient consultation and palpation demonstration
- Mapping the safe injection rectangle
- Deep masseter belly identification and depth control
- Deliberate avoidance of the anterior risorius region
- One full supervised treatment per delegate
- Aftercare counselling, including the expected timeline
- Debrief and review of injection technique
Clinical detail
Anatomy and palpation
The masseter is a quadrilateral muscle with a superficial and a deep belly, both of which contribute to bulk in hypertrophy and both of which need to be addressed for an aesthetic slimming response. We teach palpation against clenched teeth, the safe injection rectangle bounded by the anterior border, the inferior mandibular margin, the posterior border and a horizontal line through the lobule of the ear.
Aesthetic slimming versus bruxism
Aesthetic patients want a visible reduction in bulk; bruxism patients want symptom relief. The doses overlap but the rationale and the counselling differ. We cover where to start for each indication, when to add a touch-up at four weeks, and why bruxism patients sometimes need a maintenance schedule that is not simply driven by appearance.
Smile asymmetry and risorius weakness
The buccal branch of the facial nerve and the risorius muscle sit anterior to the masseter's functional belly. Inject too far forward and you risk a unilateral lateral lip weakness that lasts the duration of the toxin. We teach the anatomical and palpation cues that keep your needle inside the safe rectangle.
Paradoxical bulging
When superficial fibres are weakened but the deep belly is left untreated, patients can return at four weeks with a visible bulge on clenching that they did not have before. We cover the assessment, the corrective dosing, and the consent language that prevents this from becoming a complaint.
Who this course is for
- Maxillofacial surgeons and OMFS trainees
- Doctors and surgeons adding masseter Botox to their aesthetic or functional menu
- Dentists managing bruxism, TMJ symptoms and masseter hypertrophy
- Aesthetic nurses and prescribing pharmacists offering jawline slimming
- Aesthetic practitioners building a lower-face slimming and bruxism service
- Foundation-trained injectors progressing to the lower face
- Clinicians who completed online masseter theory and need a documented practical day
Practical training is restricted to registered healthcare professionals. Proof of registration (GMC, GDC, NMC, GPhC or equivalent) is required at booking.
Outcomes & certification
- Confidence to consent, plan and inject masseter Botox safely
- A working palpation routine you can use from your next clinic onward
- Certificate of completion + AiCE / CPD points
- Post-course mentor support for case review
- A defensible workflow for both aesthetic and bruxism indications
Pricing & what's included
£650 + VAT
- Full online theory module with lifetime access
- In-clinic practical session at 1 Harley Street
- Live model and consumables
- Toxin units for one supervised treatment
- Digital certificate and AiCE points
- Post-course mentor support
Frequently asked questions
Other Botox courses for medical professionals
Masseter Botox — Online Course
Theory-only version. Ideal for beginners with foundation Botox knowledge.
Oro-Facial Pain Botox Course
The integrated programme: upper-face, migraine, bruxism, trapezius. £1,950 + VAT.
Foundation Botox Course
Glabella, frontalis and crow's feet practical training. £650 + VAT.
UK Regulatory & Professional Bodies
Harley Street Institute training aligns with the standards set by the UK regulators and professional associations below.
- NICE — Cosmetic procedures: guidance & standardsNational Institute for Health and Care Excellence — UK clinical standards.
- JCCP — Joint Council for Cosmetic PractitionersGovernment-recognised practitioner & education register for non-surgical cosmetic interventions.
- BAMAN — British Association of Medical Aesthetic NursesProfessional body representing medically qualified aesthetic nurses across the UK.
- BCAM — British College of Aesthetic MedicineUK doctor-led professional association for aesthetic medicine standards & training.
- The CPD Certification ServiceIndependent CPD accreditation body — used to verify HSI training hours for revalidation.
External links open in a new tab. Outbound references are provided for verification only and do not imply endorsement of HSI by the linked organisation.
Flexible payment options
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