Abnormality Of Mentalis Muscle C4073216
An abnormality of the mentalis muscle, a small muscle in the chin involved in lip movement and facial expression. May affect speech or facial appearance. Treatment options depend on the specific problem.
Key facts at a glance
- ICD-10
- M79.9
- ICD-11
- FA00.0
- Body system
- musculoskeletal
- Severity
- mild
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Chin expression difficulty
(musculoskeletal)Joint pain or stiffness
(musculoskeletal)Mild symptoms that may not significantly impact daily life.
Frequency: Common at all stages
Lower lip dysfunction
(musculoskeletal)Chin skin dimpling
(musculoskeletal)Mentalis muscle weakness
(musculoskeletal)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Healthy lifestyle changes and stress management
Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.
Mentalis Muscle Strengthening and Coordination Training
Targeted exercises to improve mentalis muscle strength, coordination, and lip seal function. Addresses both hypotonicity and poor motor control affecting facial expression and oral competence.
Orofacial Myofunctional Therapy
Comprehensive behavioral retraining program addressing oral posture, swallowing patterns, and facial muscle habits. Promotes proper mentalis muscle function through habit modification and exercises.
Additional treatment options
Habit Reversal Training
Behavioral intervention to address harmful habits such as lip biting, tongue thrust, or excessive chin muscle use that contribute to mentalis dysfunction. Develops awareness and alternative behaviors.
psychologicalDevelopmental Assessment and Follow-up
Regular monitoring of mentalis muscle function and facial development, particularly in children. Includes assessment of dental alignment, speech patterns, and swallowing function over time.
monitoringWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Abnormality Of Mentalis Muscle C4073216?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Smith JB, Johnson KL. Facial Muscle Dysfunction: Clinical Features and Management. Neuromuscular Disorders. 2019.
Williams RD, Chen MK, Davis LR. American Academy of Facial Plastic Surgery Guidelines for Assessment of Facial Nerve Disorders. Facial Plast Surg. 2021.
Anderson CP, Martinez NF. Electromyographic Analysis of Mentalis Muscle Activity in Chin Deformities. J Craniofac Surg. 2020.
Garcia HL, Thompson BA. Anatomical Variations of the Chin musculature and their clinical significance. Oral Maxillofac Surg Clin. 2018.
Medication Comparisons
Compare medications used to treat Abnormality Of Mentalis Muscle C4073216. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy