Periodontal Healing of Replanted Monkey Teeth Prevented from Drying
作者:
BlomlöfLeif,
AnderssonLars,
LindskogSven,
GöranKarl,
HammarströmLars,
期刊:
Acta Odontologica Scandinavica
(Taylor Available online 1983)
卷期:
Volume 41,
issue 2
页码: 117-123
ISSN:0001-6357
年代: 1983
DOI:10.3109/00016358309162311
出版商: Taylor&Francis
关键词: Cell culture;periodontal ligament;replantation;root resorption;tooth
数据来源: Taylor
摘要:
Root resorption of replanted teeth is dependent on the duration of the extra-alveolar period and on the storage environment. In the present investigation the significance of preserving the humidity of the periodontal ligament (PDL) during the extra-alveolar period was tested on isolated PDL cells and on replanted monkey teeth. The isolated PDL cells were tested with respect to cell viability (trypan blue exclusion test) and to cell recovery (number of cells after additional cultivation). About 70% of the cells were viable and 44% recovered after 1 h in a humid atmosphere. Practically no cells were viable or recovered after 1 h of drying. Replanted teeth that had been wrapped in plastic foil for 1 h before replantation showed no more resorption than immediately replanted teeth. This is in contrast to teeth dried in air for 1 h before replantation. They showed extensive root resorption on almost all root surfaces. Thus, prevention of evaporation of tissue fluid from the PDL must be considered a primary goal if the tooth cannot be replanted immediately.
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