Abstract |
The pulp and dentine of permanent incisors in 13 young monkeys were exposed by grinding. The pulpal perforations were treated by partial pulpotomy with a tungsten carbide fissure bur after exposure for 4, 48, or 168 hours in nine animals, and by direct pulp capping after exposure for 4 or 48 hours in the remaining four animals. After haemostasis, the pulpal wounds were covered with calcium hydroxide ( Dycal), followed by conventional amalgam ( Revalloy). Initial and subsequent formation of hard tissue bridges over the wounds was studied by conventional histology after 1-6 months. Screening showed three categories of initial bridging development, differing in nature and rate of formation. A significant difference in the distribution of the two main categories was found between the two methods of treatment (P less than 0.02). A similar difference was observed when partial pulpotomy was performed after 168 hours compared with that performed after 4 hours (P = 0.055). No relationship was found between the initial bridging category and the eventual development of complete dentine bridges.
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Authors | S Heide |
Journal | International endodontic journal
(Int Endod J)
Vol. 24
Issue 3
Pg. 126-34
(May 1991)
ISSN: 0143-2885 [Print] England |
PMID | 1778625
(Publication Type: Comparative Study, Journal Article)
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Topics |
- Animals
- Dental Pulp
(injuries)
- Dental Pulp Capping
- Dentin, Secondary
- Macaca fascicularis
- Pulpotomy
- Time Factors
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