Transcript
Effect of Mouth Rinse on Composite Filling
Introduction
Mouth rinses are used to:• treat and prevent gingivitis • eliminate bad breath• whiten teeth
• Many healthy problems have been recorded for wide spread of using one or more of these products.
Objective• To determine the effects of mouth rinses containing Ethanol
on the physical properties of Composite filling
• Focus on the Hardness, Roughness, and Stress
Materials
Methods• 24 Specimen of Nano Hybrid Composite , NEXOCOMP ,
hardened with Led white Light
Groups Exposure time Mouth wash components
1 12 hours Floucaril alcohol 23,7 %
2 24 hours Floucaril alcohol 23,7 %
3 36 hours Floucaril alcohol 23,7 %
4 48 hours Sterilized Water
Devices
Hardness
Roughness
Stress
Hardness DeviceShore D durometer ATS FAAR Vignete
• Consist of metal cone head penetration carried on a spring and a measurement to read the hardness after applying force of 44.64 N
Head Penetration is cone shape
Roughness Device Suftest Analyzer – Mitutoyo
• It changes the mechanic movement of the sensitive head to electric stress
• Average Roughness :Ra
• Measurement on 2.4 mm of surface of sample
Stress Device
• Device M 350- 5 KN made by Testometric
• Two jaws, fixed and movable
• Speed : 1 mm /min
Results Time GroupStress Roughness Hardness
N12 hours ,
Flucaril First
N 24 hours, Flucaril Second
N36 hours,
Flucaril Third
ResultsHardness
water 12 h 24h 36h80
82
84
86
88
90
92
94
96
98
100
water12 h24h36h
*
***
Time (h)
Shor
e D
ResultsRoughness
water 12 h 24h 36h0.0
0.5
1.0
1.5
2.0
2.5
3.0
water12 h24h36h
*
***
***
Time (h)
Rou
ghne
ss R
A
Stress
Compresstion
water 12 h 24h 36h1000
1500
2000
2500
3000
water12 h24h
36h
Time (hour )
Fo
rce(
N)
Stress
water 12 h 24h 36h0
100
200
300water12 h24h36h
Time (h)
(Mpa
) str
ess
Discussion
Hardness • indicates difficulty of penetration. It is used as
an indicator of material resistance to erosion and scratches resulting from toothbrushes and eating food.
• Reduction of hardness causes crashes in dental filling.
Discussion
Roughness• Porous microstructures are good environment
for bacteria .• It is difficult to clean the surface mechanically.• Dying of composite filling.
Discussion
Stress
Stress is responsible of filling’s cracks in case of unwanted lateral pressers
Discussion • Mouthwashes that contain ethanol cause reduction in hardness and
increase in roughness in composite filling.
Future directions • More studies are required to compare the effect on
composite fillings of mouthwashes that contain ethanol with the ones that do not contain ethanol.
• These studies should simulate the natural environment in mouth by exposing the filling to mouthwashes one minute daily for one year, as an example.
Refferences • Bolanowski ، S. J. ، G. A. Gescheider ، et al. (1995). "Relationship between oral pain and ethanol
concentration in mouthrinses." J Periodontal Res 30(3): 192-7.
• Bollen ، C. M. ، P. Lambrechts ، et al. (1997). "Comparison of surface roughness of oral hard materials to the threshold surface roughness for bacterial plaque retention: a review of the literature." Dent Mater 13(4): 258-69.
• Diab M; Zaazou M.H. ، Mubarak 1 1 2 E.H and 3Olaa M.I. Fahmy ، 2007 ، Effect of Five Commercial Mouthrinses on the Microhardness and Color Stability of Two Resin Composite Restorative Materials ،Australian Journal of Basic and Applied Sciences ، 1(4): 667-674
• Gagari ، E. and S. Kabani (1995). "Adverse effects of mouthwash use. A review." Oral Surg Oral Med Oral Pathol Oral Radiol Endod 80(4): 432-9.
• Haq ، M. W. ، M. Batool ، et al. (2009). ""Alcohol use in mouthwash and possible oral health concerns"." J Pak Med Assoc 59(3): 186-90.
• • McCullough, Michael; C. S. Farah (December 2008). "The role of alcohol in oral carcinogenesis with
particular reference to alcohol-containing mouthwashes". Australian Dental Journal 53 (4): 302–305. Retrieved on 2009-01-12
• Shulman ، J. D. and L. M. Wells (1997). "Acute ethanol toxicity from ingesting mouthwash in children younger than 6-years of age." Pediatr Dent 196): 404-8.
Thanks
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