Title :
Pulp tissue response to partial flling of the pulp cavity, under compression, by calcium hydroxide, using a new device
Author :
Villette, A. ; Basl?©, M. ; Grizon, F. ; Filmon, R. ; Rebel, A.
Author_Institution :
Fac. de Med., Lab. Histology, Univ. d´´Angers, Angers, France
Abstract :
Eleven human teeth cavities were partially Filled under pressure with a calcium hydroxide paste, using a special injector. Tetracyline labeling, prior extraction, was used to study the biological activity of odontoblasts. Undecalcified teeth were examined under light, UV and scanning electron microscopy, 76±22 days after injection. A complete reparative dentin bridge was observed in 12 of the 25 root-canals and a partial sealing was demonstrated in 9 root-canals. The remaining root-canals were either fully occluded, or necrotic, or no reactive. These results indicate that the technique used is reliable for partial or complete tooth devitalization.
Keywords :
biological tissues; biomedical optical imaging; calcium compounds; dentistry; optical microscopy; patient treatment; scanning electron microscopy; seals (stoppers); UV microscopy; complete tooth devitalization; compression; human teeth cavities; light microscopy; necrotic root canals; occluded root canals; odontoblasts; partial sealing; paste; pulp cavity partial filling; pulp tissue response; reparative dentin bridge; root canals; scanning electron microscopy; tetracyline labeling; undecalcified teeth; Bridges; Instruments; Manganese; Materials; Teeth;
Conference_Titel :
Engineering in Medicine and Biology Society, 1992 14th Annual International Conference of the IEEE
Print_ISBN :
0-7803-0785-2
Electronic_ISBN :
0-7803-0816-6
DOI :
10.1109/IEMBS.1992.5761372
