Shrinkage vectors in flowable bulk-fill and conventional composites: bulk versus incremental application.
Bulk application
Flowable bulk-fill composite
Incremental application
Medical image registration
Shrinkage vectors
Total-etch technique
Journal
Clinical oral investigations
ISSN: 1436-3771
Titre abrégé: Clin Oral Investig
Pays: Germany
ID NLM: 9707115
Informations de publication
Date de publication:
Mar 2021
Mar 2021
Historique:
received:
16
01
2020
accepted:
11
06
2020
pubmed:
13
7
2020
medline:
16
2
2021
entrez:
13
7
2020
Statut:
ppublish
Résumé
Sufficient depth of cure allows bulk-fill composites to be placed with a 4-mm thickness. This study investigated bulk versus incremental application methods by visualizing shrinkage vectors in flowable bulk-fill and conventional composites. Cylindrical cavities (diameter = 6 mm, depth = 4 mm) were prepared in 24 teeth and then etched and bonded with OptiBond FL (Kerr, Italy). The composites were mixed with 2 wt% radiolucent glass beads. In one group, smart dentin replacement (SDR, Dentsply) was applied in bulk "SDR-bulk" (n = 8). In two groups, SDR and Tetric EvoFlow (Ivoclar Vivadent) were applied in two 2-mm-thick increments: "SDR-incremental" and "EvoFlow-incremental." Each material application was scanned with a micro-CT before and after light-curing (40 s, 1100 mW/cm The greatest shrinkage vectors were found in "SDR-bulk" and "SDR-increment2," and the smallest were found in "SDR-increment1-covered" and "EvoFlow-increment1-covered." Shrinkage away from and toward the cavity floor was greatest in "SDR-bulk" and "EvoFlow-increment2," respectively. The mean values of the shrinkage vectors were significantly different between groups (one-way ANOVA, Tamhane's T2 test, p < 0.05). The linear polymerization shrinkage and shrinkage stress were greatest in Tetric EvoFlow, and the gelation time was greatest in "SDR-bulk." The bulk application method had greater values of shrinkage vectors and a higher debonding tendency at the cavity floor. Incremental application remains the gold standard of composite insertion.
Identifiants
pubmed: 32653992
doi: 10.1007/s00784-020-03412-3
pii: 10.1007/s00784-020-03412-3
pmc: PMC7878238
doi:
Substances chimiques
Composite Resins
0
Dental Materials
0
Types de publication
Journal Article
Langues
eng
Pagination
1127-1139Références
Dent Mater. 2012 Jan;28(1):13-22
pubmed: 22192248
Quintessence Int. 1995 Feb;26(2):95-110
pubmed: 7568728
Odontology. 2016 Sep;104(3):257-70
pubmed: 27540733
Oper Dent. 2003 May-Jun;28(3):215-35
pubmed: 12760693
Clin Oral Investig. 2018 Jun;22(5):2047-2056
pubmed: 29248963
Dent Mater. 2003 Jan;19(1):1-11
pubmed: 12498890
J Mech Behav Biomed Mater. 2018 Jan;77:414-421
pubmed: 29020664
Dent Mater. 2019 Nov;35(11):1568-1575
pubmed: 31500903
J Esthet Restor Dent. 2011 Dec;23(6):390-6
pubmed: 22142299
J Dent Res. 2011 Apr;90(4):402-16
pubmed: 20924063
J Dent. 2014 Apr;42(4):439-49
pubmed: 24480086
J Biomed Mater Res. 2001 Dec 5;57(3):384-93
pubmed: 11523033
Dent Mater. 2004 Jul;20(6):535-42
pubmed: 15134941
Biomaterials. 2009 Sep;30(27):4457-62
pubmed: 19515419
J Dent Res. 1987 Nov;66(11):1636-9
pubmed: 10872397
J Esthet Restor Dent. 2010 Dec;22(6):363-77
pubmed: 21126292
J Dent Res. 1998 Jun;77(6):1435-45
pubmed: 9649172
J Dent. 2013 Aug;41(8):695-702
pubmed: 23707645
Dent Mater. 1991 Oct;7(4):281-7
pubmed: 1814775
Dent Mater. 2015 Oct;31(10):e201-17
pubmed: 26220777
Biomaterials. 2004 Aug;25(18):4465-77
pubmed: 15046937
Dent Mater. 1999 Mar;15(2):128-37
pubmed: 10551104
Dent Mater. 1991 Jan;7(1):44-9
pubmed: 2015998
J Esthet Restor Dent. 2017 Apr;29(2):118-127
pubmed: 27925387
J Can Dent Assoc. 2011;77:b9
pubmed: 21507291
Acta Odontol Scand. 1999 Dec;57(6):310-5
pubmed: 10777133
Dent Mater. 2005 Dec;21(12):1150-7
pubmed: 16040118
Dent Mater. 2013 Mar;29(3):269-77
pubmed: 23228335
Oper Dent. 2010 Jan-Feb;35(1):58-68
pubmed: 20166412
Oper Dent. 2014 Mar-Apr;39(2):E83-92
pubmed: 24125075
Dent Mater. 2010 Mar;26(3):223-31
pubmed: 19913900
Clin Oral Investig. 2019 May;23(5):2403-2411
pubmed: 30302605
Dent Mater. 2015 Apr;31(4):382-90
pubmed: 25649496
Dent Mater. 2015 Mar;31(3):293-301
pubmed: 25582061
Dent Mater. 2008 Jan;24(1):1-8
pubmed: 17920115
Dent Mater J. 2007 Mar;26(2):149-55
pubmed: 17621928
J Dent. 2015 Dec;43(12):1519-28
pubmed: 26449641
Dent Mater. 2017 Apr;33(4):e165-e177
pubmed: 28088459
Dent Mater. 2000 Nov;16(6):447-51
pubmed: 10967195
Oper Dent. 2016 Nov/Dec;41(6):e195-e208
pubmed: 27820694
Dent Mater. 2010 Mar;26(3):215-22
pubmed: 19906417
J Dent. 2012 Jun;40(6):500-5
pubmed: 22390980
J Prosthet Dent. 2005 Dec;94(6):511-9
pubmed: 16316797
Dent Mater J. 2014;33(4):476-83
pubmed: 24988881
J Adhes Dent. 2016;18(2):119-24
pubmed: 27042703
J Prosthet Dent. 2007 Sep;98(3):166-74
pubmed: 17854617
Dent Mater. 2011 Aug;27(8):e176-85
pubmed: 21612818
Dent Mater. 2005 Jan;21(1):36-42
pubmed: 15681000
Clin Oral Investig. 2019 Mar;23(3):1461-1471
pubmed: 30120604
Dent Mater J. 2012;31(3):481-8
pubmed: 22673475
J Appl Oral Sci. 2019 Jan 07;27:e20180132
pubmed: 30624465
Dent Mater. 2010 Feb;26(2):e38-49
pubmed: 20004960
Dent Mater. 2009 Oct;25(10):1213-20
pubmed: 19481246
Dent Mater. 2015 Apr;31(4):453-61
pubmed: 25702975
J Dent. 2015 Apr;43(4):430-9
pubmed: 25676178
Dent Mater. 2009 Mar;25(3):314-20
pubmed: 18762335
J Can Dent Assoc. 2010;76:a23
pubmed: 20388311
Dent Mater. 2001 May;17(3):253-9
pubmed: 11257299
J Can Dent Assoc. 2010;76:a94
pubmed: 20719101
J Mech Behav Biomed Mater. 2018 Feb;78:206-213
pubmed: 29172125
Oper Dent. 2017 Jan/Feb;42(1):E16-E23
pubmed: 27689769
Dent Mater. 2010 Feb;26(2):e50-62
pubmed: 20045179
Dent Mater. 2011 Nov;27(11):1070-8
pubmed: 21820729
Dent Mater. 2008 Feb;24(2):228-34
pubmed: 17572484
Dent Mater. 2007 May;23(5):533-8
pubmed: 16725190
J Esthet Restor Dent. 2010 Apr;22(2):86-101
pubmed: 20433559
J Dent Res. 2005 Jul;84(7):659-62
pubmed: 15972597