Topography of the masseter muscle in relation to treatment with botulinum toxin type A

Kyung-Seok Hu, Seong Taek Kim, Mi Sun Hur, Ju Hyun Park, Wu Chul Song, Ki Seok Koh, Heejin Kim

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Objective: The objective of this study was to provide the safest and most efficient site for injection of botulinum toxin type A into the masseter muscle. Study design: This study was performed on 40 hemifaces from cadavers. The surface of the masseter was compartmentalized into areas I to VIII. Areas I, III, V, and VII were assigned to represent the upper 4 compartments from the posterior aspect of each muscle, and areas II, IV, VI, and VIII were assigned to represent the lower 4 compartments. Results: The parotid gland usually covered compartments I and II, and the marginal mandibular branch of the facial nerve was located a mean of 7.4 mm above the inferior mandibular margin. The parotid duct was usually located above the reference line connecting the tragus and the cheilion. Conclusion: The center of compartment VI is the safest and most efficient injection site for botulinum toxin type A into the masseter muscle.

Original languageEnglish
Pages (from-to)167-171
Number of pages5
JournalOral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology
Volume110
Issue number2
DOIs
Publication statusPublished - 2010 Apr 8

Fingerprint

Masseter Muscle
Type A Botulinum Toxins
Injections
Parotid Gland
Facial Nerve
Cadaver
Muscles
Therapeutics

All Science Journal Classification (ASJC) codes

  • Surgery
  • Oral Surgery
  • Otorhinolaryngology
  • Dentistry(all)

Cite this

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abstract = "Objective: The objective of this study was to provide the safest and most efficient site for injection of botulinum toxin type A into the masseter muscle. Study design: This study was performed on 40 hemifaces from cadavers. The surface of the masseter was compartmentalized into areas I to VIII. Areas I, III, V, and VII were assigned to represent the upper 4 compartments from the posterior aspect of each muscle, and areas II, IV, VI, and VIII were assigned to represent the lower 4 compartments. Results: The parotid gland usually covered compartments I and II, and the marginal mandibular branch of the facial nerve was located a mean of 7.4 mm above the inferior mandibular margin. The parotid duct was usually located above the reference line connecting the tragus and the cheilion. Conclusion: The center of compartment VI is the safest and most efficient injection site for botulinum toxin type A into the masseter muscle.",
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Topography of the masseter muscle in relation to treatment with botulinum toxin type A. / Hu, Kyung-Seok; Kim, Seong Taek; Hur, Mi Sun; Park, Ju Hyun; Song, Wu Chul; Koh, Ki Seok; Kim, Heejin.

In: Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology, Vol. 110, No. 2, 08.04.2010, p. 167-171.

Research output: Contribution to journalArticle

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AU - Koh, Ki Seok

AU - Kim, Heejin

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AB - Objective: The objective of this study was to provide the safest and most efficient site for injection of botulinum toxin type A into the masseter muscle. Study design: This study was performed on 40 hemifaces from cadavers. The surface of the masseter was compartmentalized into areas I to VIII. Areas I, III, V, and VII were assigned to represent the upper 4 compartments from the posterior aspect of each muscle, and areas II, IV, VI, and VIII were assigned to represent the lower 4 compartments. Results: The parotid gland usually covered compartments I and II, and the marginal mandibular branch of the facial nerve was located a mean of 7.4 mm above the inferior mandibular margin. The parotid duct was usually located above the reference line connecting the tragus and the cheilion. Conclusion: The center of compartment VI is the safest and most efficient injection site for botulinum toxin type A into the masseter muscle.

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