Avtor/Urednik     Nemeth, Lidija; Erman, Andreja; Štiblar-Martinčič, Draga
Naslov     Early odontoblastic layer response to cavity preparation and acid etching in rats
Tip     članek
Vir     Folia Biol Krak
Vol. in št.     Letnik 54, št. 1-2
Leto izdaje     2006
Obseg     str. 23-30
ISSN     0015-5497
Jezik     eng
Abstrakt     The aim of this study was to establish the early odontoblastic layer response and quantitatively to estimate the number of odontoblasts after cavity preparation with and without acid etching. Halfof 56 cavities prepared on rats' first upper molars were acid etched. Qualitative and morphometric analyses were made on histological and ultrathin sections 5 min, 6 h, 24 h and 72 h post-operatively. Under the etched cavity, a greater disarrangement of odontoblasts was found, modifications in nuclear shape and condensed chromatin 5 min. post-operatively. An additional reduction of odontoblast number was detected and an increase of aspirated cell number 5 min, 6 h and 24 h post-operatively, pronounced hyperaemia 6, 24 and 72 hours post-operatively and increased odontoblast number 72 hours post-operatively, compared to unetched cavities. In conclusion, injury to the odontoblastic layer was greater, but numerical renewal of the odontoblastic layer began earlier in etched cavities compared to unetched cavities.
Deskriptorji     DENTAL PULP
ROOT CANAL PREPARATION
ACID ETCHING, DENTAL
ODONTOBLASTS
MICROSCOPY, ELECTRON
RATS
CELL COUNT