Objective: This
study investigated the effect of ozone treatment on the microleakage of class V
composite restorations after using two different bleaching agents with laser
activation.
Materials and Methods: Forty non-carious maxillary central
incisor teeth extracted for periodontal disease were used and randomly divided
into two main groups. Group 1: Bleaching agent including 40% H2O2
was activated with laser (Diode 980 nm, Gigaa Dental Laser Cheese, China).
Group 2: Bleaching agent including 35% H2O2 was activated
with the same laser. Then, the teeth were randomly divided into two subgroups
(n=10). Ten specimens in each subgroup were subjected to ozone treatment (Ozonytron
XP-OZ, MIO International, Germany) for 30 seconds, while the remaining left
untreated/remainings were control group. After class V cavity preparation on the
buccal surfaces, all cavities were filled with composite resin (Filtek Z550, 3M
ESPE, USA). Following thermal cycling (5–55°C, 5000×), the specimens were
subjected to dye penetration within 0.5% basic fuchsine for 24h. Then, the
teeth were sectioned longitudinally to evaluate staining and the depth of
staining along with the tooth-restoration interface was recorded with a
stereomicroscope.
Results: There
were no significant differences between the two bleaching agents in
microleakage of restorations (p > 0.05). The ozone treatment didn’t decrease the microleakage values (p > 0.05). There were significant differences among
the scores of microleakage at the enamel and gingival margins (p < 0.05).
Conclusion: Ozone
treatment did not affect microleakage values of class V composite
restorations after dental bleaching.
Primary Language | English |
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Subjects | Health Care Administration |
Journal Section | Original Research Articles |
Authors | |
Publication Date | October 17, 2018 |
Submission Date | April 12, 2018 |
Published in Issue | Year 2018Volume: 21 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.
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