Effectiveness of Different Cleaning Solutions in Removing Residual Caries‐Detector Dyes

2018 ◽  
Vol 31 (3) ◽  
pp. 253-256
Author(s):  
Emine Sen Tunc ◽  
Zeynep Sahin ◽  
Eda Guler ◽  
Sule Bayrak ◽  
Nuray Tuloglu
Keyword(s):  
Residual Caries

scholarly journals Performance of Laser Fluorescence for Residual Caries Detection in Primary Teeth

2008 ◽  
Vol 02 (03) ◽  
pp. 176-184 ◽  
Author(s):  
Taskin Gurbuz ◽  
Yucel Yilmaz ◽  
Fatih Sengul
Keyword(s):  
Light Microscopy ◽  
Gold Standard ◽  
Primary Teeth ◽  
Polarized Light ◽  
Laser Fluorescence ◽  
Caries Detection ◽  
Sem Images ◽  
Significant Difference ◽  
Residual Caries ◽  
Cavity Floor

ABSTRACTObjectives: The aim of this study was to evaluate the performance of a visual-tactile examination and a laser fluorescence device for detecting residual dentinal caries after carious dentin removal with bur excavation, hand excavation and chemomechanical excavation (Carisolv™].Methods: Thirty extracted coronal caries primary second molars were used. The caries infected dentin has been removed. A blinded examiner checked all cavities for residual caries using a visualtactile examination and laser fluorescence. Then the teeth were sectioned through the prepared cavities andthe two halves of each tooth were processed for light microscopy and Scanning Electron Microscopy (SEM). The presence or absence of residual caries was verified using polarized light microscopy as the gold standard. The cavity floor dentin after removing carious dentin was examined using SEM.Results: In among all groups a significant difference is determined between visual-tactile examination and laser fluorescence (P<.05). There was an agreement between laser fluorescence or visual-tactile examination and histological gold standard (P>.05). In addition, SEM images of the surfaces with the caries removed have shown that a vast majority of the tubule openings is observed to be open in the samples of the Carisolv group in opposition to the other groups.Conclusions: The laser fluorescence system could be effective in checking the removal by other methods, such as bur or Carisolv and avoid excessive removal of the sound dentin. (Eur J Dent 2008;2:176-184)

In vitro Induction of Residual Caries Lesions in Dentin: Comparative Mineral Loss and Nano-Hardness Analysis

2015 ◽  
Vol 49 (3) ◽  
pp. 259-265 ◽  
Author(s):  
Falk Schwendicke ◽  
Kerrin Eggers ◽  
Hendrik Meyer-Lueckel ◽  
Christof Dörfer ◽  
Alexander Kovalev ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Acetic Acid ◽  
Ethylenediaminetetraacetic Acid ◽  
Acetic Acid Solution ◽  
Hardness Profile ◽  
Acetate Solution ◽  
Acid Ph ◽  
Residual Caries ◽  
Residual Lesions ◽  
Mineral Loss

Artificially inducing dentinal lesions mimicking those remaining after selective excavation should allow to investigate the effects and limits of such selective excavation, for example regarding the mechanical properties of treated teeth or the remineralisation of sealed residual lesions. Such analyses might otherwise be limited by the variability of natural lesions or ethical and practical concerns. This study compared different demineralisation protocols for their suitability to induce lesions similar to natural residual caries. Twelve natural deep lesions were excavated until leathery dentin remained, and analysed for their mineral loss (ΔZ), lesion depth (LD), mineral loss ratio (R), the slope of the mineral gradient and their nano-hardness profile. Artificial lesions were induced using four different demineralisation protocols (acetic acid pH = 4.95; 0.1 M lactic acid gel pH = 5.0; 0.5 M ethylenediaminetetraacetic acid pH = 7.2; Streptococcus mutans biofilms) and their depths monitored over different demineralisation times. Lesions with depths most according to those of natural lesions were analysed using transversal microradiography. Lesions induced by acetic acid solution did not significantly differ with regards to LD, ΔZ, R and mineral profile. Seven dentin specimens were subsequently submitted to a moderately acidic (pH = 5.3) methylhydroxydiphosphonate-buffered acetate solution for 12 weeks. Natural and artificial residual lesions were similarly deep (mean ± SD: LD = 626 ± 212 and 563 ± 88 µm), demineralised (R = 19.5 ± 4.7 and 29.8 ± 4.1%), showed a flat and continuous mineral gradient (slope = 0.10 ± 0.05 and 0.13 ± 0.06 vol%/µm) and did not significantly differ regarding their nano-hardness profile. The described protocol induces lesions with mineral content and mechanical properties similar to natural residual lesions.

scholarly journals Chemical, Microstructural and Morphological Characterisation of Dentine Caries Simulation by pH-Cycling

Minerals ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 5
Author(s):  
Juan Sebastián Zuluaga-Morales ◽  
María Victoria Bolaños-Carmona ◽  
Carolina Cecilia Cifuentes-Jiménez ◽  
Pedro Álvarez-Lloret
Keyword(s):  
Microstructural Properties ◽  
Third Molars ◽  
X Ray Diffraction ◽  
X Ray ◽  
In Vitro Simulation ◽  
Ph Cycling ◽  
Residual Caries ◽  
Microscopy Techniques

In vitro simulation of natural caries is of great importance in dental research for the development of more effective clinical treatments. The pH-cycling (pHc) procedure consists of a dynamic caries process with alternating de-remineralisation periods. The current research aims to evaluate the effects of the pHc procedure on mineral dentine properties in comparison with sound dentine and natural residual caries. For this purpose, dentine slices from human third molars were submitted to cycling periods of 14 and 28 days. The chemical composition, morphological and microstructural properties of the dentine samples were examined by infrared and Raman spectroscopies, X-ray diffraction, and scanning electron microscopy techniques. In addition, the depth of the demineralisation front was evaluated by Masson’s trichrome (MT) staining. The results showed that the pHc procedure led to notable changes in the mineral composition and the crystalline characteristics with respect to sound dentine and some extent to natural caries. The MT results revealed that pHc 28 yields a deeper lesion than pHc 14, simulating potential progression of natural caries. The results of this study provide a better understanding of the mechanisms of demineralisation that could occur in an in vivo environment and provide a standardised substrate similar to natural residual caries.

scholarly journals Comparison of two different methods of detecting residual caries

2017 ◽  
Vol 42 (1) ◽  
pp. 48 ◽  
Author(s):  
Uzay Koç Vural ◽  
Zeynep Bilge Kütük ◽  
Esra Ergin ◽  
Filiz Yalçın Çakır ◽  
Sevil Gürgan
Keyword(s):  
Residual Caries

The Use of Bur and Laser for Root Caries Treatment: A Comparative Study

2013 ◽  
Vol 38 (3) ◽  
pp. 290-298 ◽  
Author(s):  
V Geraldo-Martins ◽  
T Thome ◽  
M Mayer ◽  
M Marques
Keyword(s):  
Composite Resin ◽  
Significant Loss ◽  
Control Group ◽  
Strong Positive Correlation ◽  
Root Caries ◽  
Residual Caries ◽  
Caries Removal ◽  
Composite Resin Restorations ◽  
Resin Restorations

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.

scholarly journals A Comparative Evaluation of DIAGNOdent and Caries Detector Dye in Detection of Residual Caries in Prepared Cavities

2012 ◽  
Vol 13 (4) ◽  
pp. 515-520 ◽  
Author(s):  
Majid Akbari ◽  
Farzaneh Ahrari ◽  
Marzieh Jafari
Keyword(s):  
Comparative Evaluation ◽  
Laser Fluorescence ◽  
Dental School ◽  
Caries Detection ◽  
Restorative Dentistry ◽  
Mcnemar Test ◽  
Diagnodent Pen ◽  
Significant Difference ◽  
Residual Caries ◽  
Tooth Tissue

ABSTRACT Aim The objective of this study was to determine the association between DIAGNOdent laser and caries detector dye in detection of the remaining caries in restorative cavities. Materials and methods The sample consisted of 100 cavities prepared in patients referring to the Department of Restorative Dentistry of Mashhad Dental School. After confirming caries absence by tactile examination, the presence of any residual caries was determined by a laser fluorescence (LF) device (DIAGNOdent Pen) and then by caries detector dye. The data were analyzed through McNemar test. Results When the cut off value was considered as ≥13, both DIAGNOdent Pen and caries detector dye found 54 cavities as without caries and 12 cavities as carious. There were 32 teeth diagnosed as decayed only by the dye and two cases that were diagnosed as having residual caries only by the DIAGNOdent. The McNemar test revealed a significant difference in the diagnosis of residual caries between the two methods (p < 0.05), as well as significant differences between each method and tactile examination (p < 0.05). When the cut off value was set at ≥25, no significant difference was found between laser fluorescence and tactile examination in residual caries detection (p > 0.05). Conclusion Both DIAGNOdent Pen and caries detector dye can be considered as adjuncts for detecting residual caries in prepared cavities. However, the use of laser fluorescence device can provide results that are more consistent with tactile examination, while relying on caries detector dye may result in excessive removal of tooth tissue, and thus increase the risk of pulpal exposure. Clinical significance Incomparision with caries detector dye, Residual caries detection by DIAGNOdent Pen is more consistent with tactile examination. How to cite this article Akbari M, Ahrari F, Jafari M. A Comparative Evaluation of DIAGNOdent and Caries Detector Dye in Detection of Residual Caries in Prepared Cavities. J Contemp Dent Pract 2012;13(4):515-520.

scholarly journals Characteristics of secondary caries lesion around composite resin restorations

2010 ◽  
Vol 51 (3) ◽  
pp. 23-29
Author(s):  
Berenice Barbachan e Silva ◽  
Débora Heller ◽  
Marisa Maltz
Keyword(s):  
Composite Resin ◽  
Tooth Surface ◽  
Restorative Material ◽  
Caries Prevalence ◽  
Kappa Index ◽  
Secondary Caries ◽  
Caries Lesion ◽  
Residual Caries ◽  
Composite Resin Restorations ◽  
Resin Restorations

The aim of this study was to analyze the features of secondary caries and their relationship with the presence of restorations marginal defects as gap, negative ledge (NL, lack of restorative material) and positive ledge (PL, overhang). Eighty proximal surfaces of Class II resin restorations were photographed and analyzed using a stereomicroscope (X40). It was recorded the presence of external secondary caries, gap, NL, PL and after the restorations removal, the presence of internal lesion. All the exams were done in 10 well-defined points. The reproducibility (Kappa Index) of the exams of external caries, presence of gaps, restorations marginal defects and internal caries were, respectively: 0.88 e 0.94; 0.80 e 0.87; 0.83 e 0.90 e 0.82 e 0.94. As reprodutibilidades (Kappa) dos exames de cárie externa, EDR, presença de degraus e cárie interna no início e depois da análise de 50% da amostra foram, respectivamente: 0,88 e 0,94; 0,80 e 0,87; 0,83 e 0,90 e 0,82 e 0,94. The prevalence of secondary caries (p < 0.05) and gap (p < 0.01) were associated with gingival margin. The restorations marginal defects (NL and PL) were not associated with any specific location (buccal, lingual or gingival) (p= 0.073). It was observed a relationship between these defects with secondary caries prevalence (gap: p= 0.004; NL and PL: p= 0.017). This association could be explained by the biofilm accumulation usually observed in the interface tooth surface/ restoration marginal defects. The presence of internal lesion was associated with external lesion (p< 0.001). Although, in 141 points was observed internal lesion without the presence of external lesion. The majority of these lesions showed internal enamel involvement. Only 8% had demineralization restricted to dentine, which could suggest residual caries. The results of this study showed that secondary caries lesion frequently began externally on the interface tooth/restoration, where diagnose, control and arrestment of the lesions is possible.

Caries Diagnosis Within Restored Teeth

1990 ◽  
Vol 4 (1) ◽  
pp. 10-13 ◽  
Author(s):  
E.A.M. Kidd
Keyword(s):  
Common Reason ◽  
Carious Lesion ◽  
Secondary Caries ◽  
Caries Diagnosis ◽  
Diagnostic Difficulties ◽  
Residual Caries ◽  
Wall Lesion

Secondary caries is the most common reason given by dentists for the replacement of restorations, and yet this is a diagnosis that is difficult to make with confidence. This paper attempts to define some of the problems in the diagnosis of caries in restored teeth. The histology of the secondary carious lesion shows that it may be considered in two parts: an outer lesion adjacent to the filling, and a wall lesion which will occur only if there is leakage between the filling and the tooth. The specific diagnostic difficulties addressed are the difficulty of seeing this wall lesion, whether a defective margin indicates secondary caries, and the difficulties of differentiating secondary from residual caries and active from arrested disease. Since further research is needed to solve many of these problems, the paper ends by discussing the consequences of these difficulties for clinicians, epidemiologists, teachers, and research workers.

Evaluation of Three Different Caries Removal Techniques in Children: A Comparative Clinical Study

2013 ◽  
Vol 38 (1) ◽  
pp. 23-26 ◽  
Author(s):  
S Rajakumar ◽  
J Mungara ◽  
E Joseph ◽  
J Philip ◽  
V Guptha ◽  
...  
Keyword(s):  
Clinical Study ◽  
Dental Caries ◽  
Study Design ◽  
Pain Threshold ◽  
Age Groups ◽  
Pain Response ◽  
Group Comparison ◽  
Comparative Clinical Study ◽  
Residual Caries ◽  
Caries Removal

Aim: To evaluate and compare the efficacy of chemo mechanical (carie care) caries removal method with rotary and hand excavation by assessing the amount of time taken, the pain response experienced by the children and the amount of residual caries left out. Study design: Twenty patients between the age groups of 5-7 years were selected and caries removal was done by airotor, hand instruments and cariecare gel. The efficacy, time taken and pain threshold was evaluated during caries removal. Results: significant results were obtained when inter group comparison were made. Conclusion: it was concluded that cariecare was efficient in caries removal and can be used as an alternative for the airotor in management of dental caries especially in children.

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