Periodontal-masseteric reflexes decrease with tooth pre-load
Journal of Dental Research, cilt.87, sa.2, ss.175-179, 2008 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 87 Sayı: 2
- Basım Tarihi: 2008
- Doi Numarası: 10.1177/154405910808700213
- Dergi Adı: Journal of Dental Research
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.175-179
- Anahtar Kelimeler: periodontal mechanoreceptors, masseter, reflex, saturation
- İstanbul Gelişim Üniversitesi Adresli: Hayır
Özet
The responses of incisal periodontal mechanoreceptors to increasing mechanical stimulation are known to follow a hyperbolic-saturating course. The implications of these properties for the reflexive control of bite-force have not been examined directly. In line with the abovementioned receptor characteristics, we hypothesized that the periodontal-masseteric reflex will reduce as a function of increasing incisal pre-load. In 10 participants, a central incisor was repeatedly tapped (0.4 N). We measured the modulation by pre-load (0.2-2.0 N) of the reflex frequency-response at and between 3 and 20 Hz. The entrainment of the reflex increased with frequency up to 20 Hz and diminished with increasing pre-load. Importantly, the hyperbolic relationship shown here between the periodontal-masseteric reflex and tooth pre-load agreed with the load/response relationships predicted by single-receptor and tooth movement studies. This study demonstrated that periodontal mechanoreceptors are able to contribute to the ongoing control of only small bite-forces.