Objectives: The aim of this
study was to compare the effect of two commercially available bulk-fill
restorative materials on the fracture resistance of endodontically treated
human molar teeth.
Materials and methods: A total of 44 mandibular third
molar were divided into four groups: Group
1; 4 mm thick bulk-fill fluid composite (SDR ™, Dentsply, Konstanz, Germany)
was applied to the cavities. The restoration of the proximal walls and the
occlusal region was completed with posterior composite (Valux Plus, 3M ESPE, St. Paul, MN, USA).
Group 2; 4 mm thick fiber-resin reinforced bulk-fill composite (EverX
Posterior; GC Corp., Japan) was placed in the cavities and the procedure in
Group 1 was repeated. Group 3 (negative
control group); no restoration was applied to the cavities. Group 4 (positive
control group); comprised intact molar teeth without any treatment. The
root canals were shaped using rotary instruments, irrigated with NaOCl, and
obturated. All samples were incubated
in distilled water at 37˚C for 1 week and then fracture strength test was
performed. The values were recorded in Newton and the data were evaluated using Kruskal Wallis and
Mann-Whitney U test.
Results: No
statistically significant difference (p >0.05 ) was observed between group 1, 2, and the positive
control group. However, the bulk-fill fluid composite material showed higher
fracture resistance than the fiber-resin reinforced composite material (p<0.05). The highest fracture resistance was observed in the
positive control group. The fracture resistance of the negative control group
was statistically lower than the other groups (p<0.05).
Conclusions: Both
of the bulk-fill restorative materials in
endodontically treated teeth showed similar fracture resistance to intact
teeth. In addition, the clinical use of the bulk-fill fluid composites may be
recommended because of their high fracture resistance and ease of application.
Primary Language | English |
---|---|
Subjects | Health Care Administration |
Journal Section | Original Research Articles |
Authors | |
Publication Date | September 9, 2019 |
Submission Date | April 30, 2019 |
Published in Issue | Year 2019Volume: 22 Issue: 3 |
Cumhuriyet Dental Journal (Cumhuriyet Dent J, CDJ) is the official publication of Cumhuriyet University Faculty of Dentistry. CDJ is an international journal dedicated to the latest advancement of dentistry. The aim of this journal is to provide a platform for scientists and academicians all over the world to promote, share, and discuss various new issues and developments in different areas of dentistry. First issue of the Journal of Cumhuriyet University Faculty of Dentistry was published in 1998. In 2010, journal's name was changed as Cumhuriyet Dental Journal. Journal’s publication language is English.
CDJ accepts articles in English. Submitting a paper to CDJ is free of charges. In addition, CDJ has not have article processing charges.
Frequency: Four times a year (March, June, September, and December)
IMPORTANT NOTICE
All users of Cumhuriyet Dental Journal should visit to their user's home page through the "https://dergipark.org.tr/tr/user" " or "https://dergipark.org.tr/en/user" links to update their incomplete information shown in blue or yellow warnings and update their e-mail addresses and information to the DergiPark system. Otherwise, the e-mails from the journal will not be seen or fall into the SPAM folder. Please fill in all missing part in the relevant field.
Please visit journal's AUTHOR GUIDELINE to see revised policy and submission rules to be held since 2020.