Influence of Unilateral Masseter Muscle Atrophy on Craniofacial Morphology in Growing Rabbits

Kwon, Tae-Geon; Park, Hyo‐Sang; Lee, Sang‐Han; Park, In-Sook; An, Chang-Hyeon

doi:10.1016/j.joms.2006.10.059

Cited by 34 publications

(35 citation statements)

References 29 publications

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“…In contrast to previous studies 1,10,12,23,27,28 , this study showed long mandibular length and ramus height, which is consistent with a dolichofacial pattern. The discrepant findings in earlier studies can probably be attributed to different media used to induce muscle dysfunction.…”

Section: Discussioncontrasting

confidence: 98%

The influence of masticatory hypofunction on developing rat craniofacial structure

Tsai¹,

Yang²,

Chen³

et al. 2010

International Journal of Oral and Maxillofacial Surgery

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Section: Discussioncontrasting

confidence: 98%

The influence of masticatory hypofunction on developing rat craniofacial structure

Tsai¹,

Yang²,

Chen³

et al. 2010

International Journal of Oral and Maxillofacial Surgery

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“…When control and experimental sides of the unilateral BTX-A group were compared, all measurements showed statistically significant differences. Similar results were reported in another experiment using rabbits (Kwon et al, 2007). They found that BTX-A induces site-specific muscular hypofunction and influences morphology at a local skeletal site.…”

Section: Changes In Mandibular Measurementssupporting

confidence: 88%

Growth effects of botulinum toxin type A injected unilaterally into the masseter muscle of developing rats

Park

Kim

2015

J. Zhejiang Univ. Sci. B

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Abstract:Objective: To evaluate the effects of botulinum toxin type A (BTX-A) on mandible skeletal development by inducing muscle hypofunction. Methods: Four-week-old Sprague-Dawley rats (n=60) were divided into three groups: Group 1 animals served as controls and were injected with saline; Group 2 animals were injected unilaterally with BTX-A (the contralateral side was injected with saline); and Group 3 animals were injected bilaterally with BTX-A. In Group 2, the saline-injected side was designated the control side (Group 2-1), whereas the BTX-A-injected side was designated the experimental side (Group 2-2). After four weeks, the animals were sacrificed, dry skulls were prepared, and mandibles were measured. Results: In the unilateral group, the experimental side (Group 2-2) had reduced dimensions for all mandible measurements compared with the control side (Group 2-1), suggesting a local effect of BTX-A on mandible growth, likely due to muscle reduction. Conclusions: Localized BTX-A injection induced a change in craniofacial growth, and the skeletal effect was unilateral despite both sides of the mandible functioning as one unit.

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“…Much research on the impacts of masticatory function on craniofacial growth postulates that reduced masticatory function causes a reduction in craniofacial growth 4,11,14,20,22,24 . Some studies indicate that reduced masticatory function can result in a reduced thickness of the cortical bone, decreased bone density, and delayed growth of the articulare 5,25 .…”

mentioning

confidence: 99%

Masseter muscle fibre changes following reduction of masticatory function

Tsai

Lin

et al. 2012

International Journal of Oral and Maxillofacial Surgery

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Influence of Unilateral Masseter Muscle Atrophy on Craniofacial Morphology in Growing Rabbits

Cited by 34 publications

References 29 publications

The influence of masticatory hypofunction on developing rat craniofacial structure

The influence of masticatory hypofunction on developing rat craniofacial structure

Growth effects of botulinum toxin type A injected unilaterally into the masseter muscle of developing rats

Masseter muscle fibre changes following reduction of masticatory function

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