作者: Karin Forssell Ahlberg
DOI: 10.1111/J.1748-1716.1978.TB06192.X
关键词:
摘要: The present investigation was undertaken to develop an experimental model in which noxious heat stimulation used produce increased intradental sensory nerve activity canine teeth of anesthetized cats. Two techniques were evaluated both the method recording and nature stimulus varied. Slow heating (approx 1 degree C/s) 47 C tooth surface (combined with from electrodes open dentinal cavities) did not any persistent activity. Repeated periods brief intense 60 degrees amalgam placed on cavity floors) resulted immediate response afterdischarge (phase 3) generally persisting for 20--60 min. Maximum phase 3 characteristic individual cat ranged 0.2 50.2 imp/s. mean value 10.6 imp/s (S.D. +/- 9.2). A systematically higher recorded lower compared upper (p less than 0.05). maximum occurred after 3-8 stimulations; median number required stimuli 3. stimulations combined closed technique may be as by mechanisms behind increases associated tissue damage can studied.