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28.03.2024 | ORIGINAL ARTICLE
Comparison of Wrinkle Patterns Generated by Intradermal and Intramuscular Botulinum Toxin Injections by Clinical Evaluation
Erschienen in: Journal of Maxillofacial and Oral Surgery
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Purpose
Botulinum toxin has played a remarkable role in management of forehead wrinkles. Most used is intramuscular technique due to its deposition into the muscles, however, with adverse effects like brow ptosis. This study has been designed for the evaluation of efficacy for intradermal v/s intramuscular route of botulinum toxin injections for forehead wrinkles using clinical correlation.
Methods
This study included a clinical trial of 32 facial halves divided equally into intradermal and intramuscular injection technique groups, receiving total dose of 8 U. Results were assessed by clinical examination upto 2 weeks and 4 weeks with parameters; objective wrinkle rate, eyebrow height, eyebrow movement, pain, and satisfaction after treatment.
Result
Results showed least mean for objective wrinkle rate in intramuscular group, showing statistically significant improvement. Overall improvement in eyebrow height and eyebrow movement were slightly more for intramuscular group. Pain was lesser for intradermal group, whereas satisfaction of patient of patient post treatment is similar for both the groups.
Conclusion
Among intradermal and intramuscular botulinum toxin injection technique, the effect and potency were better for intramuscular technique, whereas the patient comfort and compliance were better for intradermal technique.