Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/113889
DC FieldValue
dc.titlePost-gel shrinkage with pulse activation and soft-start polymerization
dc.contributor.authorYap, A.U.J.
dc.contributor.authorSoh, M.S.
dc.contributor.authorSiow, K.S.
dc.date.accessioned2014-12-01T08:22:22Z
dc.date.available2014-12-01T08:22:22Z
dc.date.issued2002-01
dc.identifier.citationYap, A.U.J.,Soh, M.S.,Siow, K.S. (2002-01). Post-gel shrinkage with pulse activation and soft-start polymerization. Operative Dentistry 27 (1) : 81-87. ScholarBank@NUS Repository.
dc.identifier.issn03617734
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/113889
dc.description.abstractThis study investigated the influence of pulse activation and soft-start polymerization regimens on the post-gel shrinkage of a visible light-activated composite resin (Z100). A light-cure unit (BISCO VIP) that allowed for independent command over time and intensity was used. The six light-curing modes that were examined include: Control (C)-400 mW/cm 2 [40 seconds]; Pulse Delay I (PDI)-100 mW/cm 2 [3 seconds], delay [3 minutes], 500 mW/cm 2 [30 seconds]; Pulse Delay II (PDII)-200 mW/cm 2 [20 seconds], delay [3 minutes], 500 mW/cm 2 [30 seconds]; Soft-start (SS) - 200 mW/cm 2 [10 seconds], 600 mW/cm 2 [30 seconds]; Pulse Cure I (PCI) - two 400 mW/cm 2 [10 seconds] and one 400 mW/cm 2 [20 seconds] pulses with 10 seconds interval between; and Pulse Cure II (PCH) - two 400 mW/cm 2 [20 seconds] pulses with 20 seconds interval between. A strain-monitoring device measured the linear polymerization shrinkage associated with the various cure modes during and post light polymerization up to 60 minutes. Five specimens were made for each cure mode. Data was analyzed using one-way ANOVA and Scheffe's post-hoc test at significance level 0.05. Post-gel shrinkage associated with PDI was significantly lower than with PDII, SS and PCI immediately post light-polymerization. At one-minute post light polymerization, PDI had significantly lower shrinkage compared to PDII and SS. Significant differences in shrinkage were observed between PDI and SS only at 10, 30 and 60 minutes. At all time intervals, no significance in post-gel shrinkage was observed between the control and all-pulse activation/soft-start polymerization regimens. ©Operative Dentistry, 2002.
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentCHEMISTRY
dc.contributor.departmentRESTORATIVE DENTISTRY
dc.description.sourcetitleOperative Dentistry
dc.description.volume27
dc.description.issue1
dc.description.page81-87
dc.identifier.isiutNOT_IN_WOS
Appears in Collections:Staff Publications

Show simple item record
Files in This Item:
There are no files associated with this item.

Page view(s)

127
checked on Dec 2, 2021

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.