The Effect of Chlorhexidine Mouth Rinse on the Colour Stability of Porcelain with Three Different Surface Treatments: An in Vitro Study
Statement of problem: The effect of mouth washes on discolouration of dental ceramics with different surface preparations is not well documented. Objectives: This in-vitro study has been conducted to evaluate the effect of chlorhexidine (CHX) mouth rinse on colour stability of overglazed (OP), au...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Shiraz University of Medical Sciences
2014-09-01
|
| Series: | Journal of Dental Biomaterial |
| Subjects: | |
| Online Access: | http://jdb.sums.ac.ir/index.php/jdb/article/viewFile/9/3 |
| Summary: | Statement of problem: The effect of mouth washes on discolouration of dental
ceramics with different surface preparations is not well documented.
Objectives: This in-vitro study has been conducted to evaluate the effect of
chlorhexidine (CHX) mouth rinse on colour stability of overglazed (OP), autoglazed,
(AP) or polished porcelain (POP) specimens.
Materials and Methods: The restorative material investigated in this study was
overglazed, autoglazed, or polished feldspathic porcelain. A total of 48 cylandrical
specimens were prepared, (n=16 per each group). After baseline colour measurements,
for a period of14 days 8 specimens of each group were immersed in 15 ml of 0.2%
chlorhexidine mouth rinse twice daily for 2 min. After each immersion, the specimens
were washed and stored in artificial saliva. Half of the specimens from each group
were selected randomly as controls and stored in artificial saliva that was changed
daily. The colour change (ΔE) of the specimens was measured by a spectrophotometer
device. Data were statistically analyzed using 2-Way ANOVA followed by Tukey test
Results: All the specimens displayed colour changes after immersion in chlorhexidine
mouth rinse. POP specimens exhibited more colour change compared to AP and OP
specimens (P=0.001). AP and OP specimens showed relatively the same colour change
which was not significant compared to the control groups (P=0.9).
Conclusion: Auto-glazed and over-glazed porcelain can tolerate chlorhexidine mouth
rinse better than polished porcelain. However the colour changes of the ceramic with
three different surface preparations were not perceivable clinically. |
|---|---|
| ISSN: | 2383-3971 2383-398X |