Paulius UGINCIUS, Ricardas KUBILIUS, Edgaras STANKEVICIUS

Rapid voluntary clench induces bite force reflex in human

Amaç: bu çalışmada, ısırma refleksi kuvvetini belirlemek için t-scan ii okluzal analiz sistemi kullanmak ve hızlı istemli diş sıkma sırasında net çene refleksindeki değişimi değerlendirmek amaçlanmıştır. Gereç ve Yöntem : Çalışmamıza, 11 gönüllü denek katılmıştır. Denekler, t-scan ii okluzal analiz isteminin basınca duyarlı ısırma sensörlerini ısırabildikleri en hızlı şekilde ısırmışlardır. Okluzal kuvvet eğrisi aracılığıyla ısırma refleks parametreleri belirlenmiştir. Bulgular: Onbir deneğin 9unda inhibitor ısırma refleksi tespit edilmiştir. bu refleksin latans değeri 34,0±7,8 ms, süresi 17,0±2,8 ms ve kuvveti % 1,6±%0,3 olarak hesaplanmıştır. isırma refleks latansı ile maksimum nispi ısırma kuvvetinin %80ine ulaşmak için gereken zaman arasında güçlü bir ilişki gözlenmiştir (r=0,833; p

İnsanda hızlı istemli diş sıkma, ısırma refleksi meydana getirir

Objective: the purpose of this study was to test the occlusal analysis system t-scan ii for the detection of a bite force reflex and to determine the net jaw reflex modulation during a rapid voluntary clench. Materials and Methods: Eleven subjects were asked to bite as fast as possible on the pressure-sensitive sheet using occlusal scanning system t-scan ii. the bite force reflex parameters were determined from the occlusal force curve. Results:the inhibitory bite force reflex occurred in nine subjects with a latency of 34.0 ± 7.8 ms, duration of 17.0 ± 2.8 ms and strength of 1.6% ± 0.3%. a strong correlation was detected between the latency of the reflex and the time to reach 80% of the maximal relative bite force (r = 0.833; p < 0.01). a moderate correlation was found between the relative bite force at the moment of the first turning point of the reflex and the change of this force during the reflex (r = 0.677; p < 0.05). Conclusion: the reflex modulation confirms the protective role of the jaw reflex: during faster bites the latency of the bite force reflex was shorter and with a higher bite force the strength of the reflex was greater.

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