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The Use of Bur and Laser for Root Caries Treatment: A Comparative Study
- Source :
- Operative Dentistry. 38:290-298
- Publication Year :
- 2013
- Publisher :
- Operative Dentistry, 2013.
-
Abstract
- Summary This research analyzed the influence of bur and erbium, chromium:yttrium-scandium-gallium-garnet (Er,Cr:YSGG) laser caries removal on cavity characteristics and marginal seal of composite resin restorations. One hundred and forty human dental root samples were used. After in vitro root caries induction using Streptococcus mutans, the carious lesions were removed either by a conventional technique using burs (G1=control) or by using an Er,Cr:YSGG laser (λ=2.78 μm, 20 Hz, pulse duration≅140 μs, noncontact mode using a 600-μm tip) with the following power outputs: G2: 1.0 W; G3: 1.25 W; G4: 1.5 W; G5: 1.75 W; G6: 2.0 W; G7: 2.25 W; G8: 2.5 W; G9: 2.75 W; G10: 3.0 W; G11: 3.25 W; G12: 3.5 W; G13: 3.75 W; and G14: 4.0 W. Samples in the 14 groups (n=10) were conditioned with Clearfil SE Bond and restored with a flowable composite. They were then thermocycled (1000 cycles) and immersed into a 2% methylene blue solution for microleakage analysis. The data were statistically compared (analysis of variance or Spearman correlation tests; p≤0.05). The lased groups showed significantly greater microleakage indexes, cavity depths, and presence of residual caries than did those of the control group. There was a strong positive correlation between residual caries and microleakage. The results indicate that Er,Cr:YSGG laser irradiation is not a good alternative to the use of burs for root caries removal since it may cause a significant loss of marginal sealing in composite resin restorations.
- Subjects :
- Time Factors
Materials science
medicine.medical_treatment
Resin restorations
Dentistry
Lasers, Solid-State
Dental bonding
Composite Resins
law.invention
Streptococcus mutans
Dental Materials
law
medicine
Humans
Coloring Agents
Dental Restoration, Permanent
General Dentistry
Root caries
Dental Leakage
biology
business.industry
Dental Bonding
Temperature
Equipment Design
Dental Marginal Adaptation
biology.organism_classification
Laser
Resin Cements
Methylene Blue
Root Caries
Laser Therapy
Dental Cavity Preparation
business
Dental restoration
Caries Removal
Subjects
Details
- ISSN :
- 15592863 and 03617734
- Volume :
- 38
- Database :
- OpenAIRE
- Journal :
- Operative Dentistry
- Accession number :
- edsair.doi.dedup.....6a8f2641b3cae16c38ffcd1b256ec25b
- Full Text :
- https://doi.org/10.2341/11-345-l