The UvA-LINKER will give you a range of other options to find the full text of a publication (including a direct link to the full-text if it is located on another database on the internet).
De UvA-LINKER biedt mogelijkheden om een publicatie elders te vinden (inclusief een directe link naar de publicatie online als deze beschikbaar is in een database op het internet).
faculty: "ACTA" and publication year: "2009"
| Authors||H. Shemesh, C.A.S. Bier, M.K. Wu, M. Tanomaru-Filho, P.R. Wesselink|
|Title||The effects of canal preparation and filling on the incidence of dentinal defects|
|Journal||International endodontic journal|
|Abstract||Aim To evaluate ex vivo the incidence of defects in root dentine before and after root canal preparation and filling.|
Methodology Eighty extracted mandibular premolars were divided equally in four groups. Group 1 was left unprepared. All other root canals were prepared using Gates Glidden drills and System GT files up to size-40, 0.06 taper at the working length. Group 2 was not filled while the canals of the other groups were filled with gutta-percha and AH26, either with a master cone and passive insertion of secondary gutta percha points (group 3) or lateral compaction (group 4). Roots were then sectioned horizontally 3, 6, and 9 mm from the apex and observed under a microscope. The presence of dentinal defects (fractures, craze lines or incomplete cracks) was noted and the differences between the groups were analysed with the Fisher’s exact test.
Results No defects were observed in the roots with unprepared canals. The overall difference between the groups was significant (P < 0.05). Canal preparation alone created significantly more defects than unprepared canals (P < 0.05). The total number of defects after lateral compaction was significantly larger than after noncompaction canal filling.
Conclusion Root canal preparation and filling of extracted teeth created dentine defects such as fractures, craze lines and incomplete cracks.
Use this url to link to this page: http://dare.uva.nl/en/record/362393
Contact us about this recordNotify a colleague
Add to bookbag