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논문검색

학회지 > 논문검색
논문 검색
Seong Taek Kim, DDS.1, Jong Hoon Choi, DDS.1, Mee Young Park, M.D.2, Ki Young Ahn, M.D.3
1Department of Oral Medicine, College of Dentistry, Yonsei University, 2Department of Neurology, College of Medicine, Yeungnam University, 3Department of Plastic & Reconstructive Surgery, College of Medicine, Catholic University of Daegu, Daegu, Korea
The Change of the Maximal Bite-force after Botulinum Toxin A Injection for Lower Face Contouring
J Korean Soc Aesth Surg 2005 (Mar) 011(08) 45-50
Botulinum toxin type A, Bite force, Masseter hypertrophy, Lower face contouring
Ksaps011-01-08.pdf Ksaps011-01-08.pdf
The temporary effects of muscle atrophy, followed by chemodenervation due to acetylcholine blockade at the neuromuscular junction by botulinum toxin type A(BTX-A) were mainly used for the treatment of hypertrophied muscle. In the treatment of masseter hypertrophy or cosmetic contouring of the lower face with injection of botulinum toxin type A, these muscle atrophy causes the change of the bite-force inevitably.
Although several reports about the histological change of muscle, ultrasound and computerized tomography measurement studies of the change of muscle thickness in the treatment of masseter hypertrophy with injection of BTX-A have become available recently, it is necessary to study further the change of the bite-force and the relationship between the bite-force and clinical effects after the botulinum toxin A injection.
The aim of this study was to evaluate the change of maximal bite-forces after botulinum toxin type A injections for treating the contouring of the lower face. Botulinum toxin type A(BTXAⰒ, Lanzhou, China) of 25U per side was carried out in 7 subjects. The change of maximal bite-forces was evaluated at pre-injection and 2 week, 4 week, 8 week, 12 week post-injections using bite- force measuring machine(MPM-3000, Japan). There were statistically significant differences between pre-injection and 2 week, 4 week, 8 week post-injections(p<0.05). However, there was no significant difference between pre-injection and 12 week post-injection.
In conclusion, the change of maximal bite-forces after BTX-A injections according to the period was similar to the histological change of the muscle. The clinical effects last more longer than maximal bite force. Therefore, it is necessary to evaluate further these difference with more larger samples and the relationship between the change of maximal bite force and clinical effects.
김성택1·최종훈1·박미영2·안기영3
연세대학교 치과대학 구강내과학교실1, 영남대학교 의과대학 신경과학교실2, 대구가톨릭대학교 의과대학 성형외과학교실3
사각턱교정술에 있어 보툴리눔독소 A형 주사 후 최대저작력의 변화
2005 (Mar) 011(08) 45-50