Prolonging the Duration of Masseter Muscle Reduction by Adjusting the Masticatory Movements After the Treatment of Masseter Muscle Hypertrophy With Botulinum Toxin Type A Injection

Wei, Jiao; Hua, Xu; Dong, Jian; Li, Qingfeng; Dai, Chuanchang

doi:10.1097/dss.0000000000000162

Cited by 31 publications

(32 citation statements)

References 15 publications

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“…These complications were grouped together because of their common etiology of localized vascular damage—transient swelling after injection may be caused by the minor rupture of the blood vessels, and bruising is caused by venous or capillary damage during treatment, while hematoma is caused by artery or arteriole puncture without adequate application of pressure. Local swelling is a nonspecific complication of BoNT injections with an incidence rate of around 6.3%‐22.7%, and often recovers in 2 to 3 days . Gaofeng et al reported that local swelling appeared in 5 out of 32 treated patients in the early period after injection and recovered within 1 week.…”

Section: Resultsmentioning

confidence: 99%

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Literature review of the adverse events associated with botulinum toxin injection for the masseter muscle hypertrophy

Yeh¹,

Peng²,

Peng³

2018

J of Cosmetic Dermatology

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Botulinum toxin masseter injections are commonly performed procedures with good results and safety profiles. The majority of complications appeared within 2-4 weeks of injection and disappeared within 12 weeks. Despite the temporary nature of these complications, they often decrease patient satisfaction and confidence, so physicians should familiarize themselves with the regional anatomy and injection safety zones.

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Section: Resultsmentioning

confidence: 99%

“…Pain around the injection site is a common side effect reported by 6 articles. The incidence rate is about 12.5%‐59.1% . Most patients recover within 1‐3 days, though Choe et al reported a patient with persistent local pain that only recovered after 3 weeks.…”

Section: Resultsmentioning

confidence: 99%

Literature review of the adverse events associated with botulinum toxin injection for the masseter muscle hypertrophy

Yeh¹,

Peng²,

Peng³

2018

J of Cosmetic Dermatology

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“…69,73 There is only one study known at this time to support any of these recommendations, related to masseter muscle treatment only. 74 The study demonstrated that activation of the masseter for a period after injection could lead to improved long-term efficacy. 74 …”

Section: The Influence Of Technique On Abo Efficacymentioning

confidence: 94%

“…74 The study demonstrated that activation of the masseter for a period after injection could lead to improved long-term efficacy. 74 …”

Section: The Influence Of Technique On Abo Efficacymentioning

confidence: 94%

Key Parameters for the Use of AbobotulinumtoxinA in Aesthetics: Onset and Duration

Nestor

Ablon

Pickett

2017

Aesthetic Surgery Journal

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Time to onset of response and duration of response are key measures of botulinum toxin efficacy that have a considerable influence on patient satisfaction with aesthetic treatment. However, there is no overall accepted definition of efficacy for aesthetic uses of botulinumtoxinA (BoNT-A). Mechanical methods of assessment do not lend themselves to clinical practice and clinicians rely instead on assessment scales such as the Frontalis Activity Measurement Standard, Frontalis Rating Scale, Wrinkle Severity Scale, and Subject Global Assessment Scale, but not all of these have been fully validated. Onset of activity is typically seen within 5 days of injection, but has also been recorded within 12 hours with abobotulinumtoxinA. Duration of effect is more variable, and is influenced by parameters such as muscle mass (including the effects of age and sex) and type of product used. Even when larger muscles are treated with higher doses of BoNT-A, the duration of effect is still shorter than that for smaller muscles. Muscle injection technique, including dilution of the toxin, the volume of solution injected, and the positioning of the injections, can also have an important influence on onset and duration of activity. Comparison of the efficacy of different forms of BoNT-A must be made with the full understanding that the dosing units are not equivalent. Range of equivalence studies for abobotulinumtoxinA (Azzalure; Ipsen Limited, Slough UK/Galderma, Lausanne CH/Dysport, Ipsen Biopharm Limited, Wrexham UK/Galderma LP, Fort Worth, TX) and onabotulinumtoxinA (Botox; Allergan, Parsippany, NJ) have been conducted, and results indicate that the number of units of abobotulinumtoxinA needs to be approximately twice as high as that of onabotulinumtoxinA to achieve the same effect. An appreciation of the potential influence of all of the parameters that influence onset and duration of activity of BoNT-A, along with a thorough understanding of the anatomy of the face and potency of doses, are essential to tailoring treatment to individual patient needs and expectations.

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“…The clinical reduction in the masseter muscle and the subsequent reshaping of the lower face can usually be seen after 2‐4 weeks, once the paralyzed muscles have atrophied from lack of use—the physician should therefore inform the patient of the necessary wait. In an MRI evaluation study, muscular atrophy continued into the fourth month with just a single treatment, and recovery was noted by the sixth month …”

Section: Incidence Of Complicationsmentioning

confidence: 99%

Complications of botulinum toxin injection for masseter hypertrophy: Incidence rate from 2036 treatments and summary of causes and preventions

Peng¹,

Peng²

2017

J of Cosmetic Dermatology

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Prolonging the Duration of Masseter Muscle Reduction by Adjusting the Masticatory Movements After the Treatment of Masseter Muscle Hypertrophy With Botulinum Toxin Type A Injection

Abstract: Purposely strengthening masticatory muscle movement during the denervated atrophic stage of the masseter can prolong the duration of masseter rehypertrophy.

Cited by 31 publications

References 15 publications

Literature review of the adverse events associated with botulinum toxin injection for the masseter muscle hypertrophy

Literature review of the adverse events associated with botulinum toxin injection for the masseter muscle hypertrophy

Key Parameters for the Use of AbobotulinumtoxinA in Aesthetics: Onset and Duration

Complications of botulinum toxin injection for masseter hypertrophy: Incidence rate from 2036 treatments and summary of causes and preventions

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