Detection of Early Interproximal Caries in vitro Using Laser Fluorescence, Dye–Enhanced Laser Fluorescence and Direct Visual Examination

1999 ◽  
Vol 33 (3) ◽  
pp. 227-233 ◽  
Author(s):  
H. Eggertsson ◽  
M. Analoui ◽  
M.H. van der Veen ◽  
C. González-Cabezas ◽  
G.J. Eckert ◽  
...  
Keyword(s):  
Laser Fluorescence ◽  
Visual Examination ◽  
Fluorescence Dye

An in vitro Comparison between Laser Fluorescence and Visual Examination for Detection of Demineralization in Occlusal Pits and Fissures

1998 ◽  
Vol 32 (3) ◽  
pp. 210-218 ◽  
Author(s):  
A. G. Ferreira Zandoná ◽  
M. Analoui ◽  
B. B. Beiswanger ◽  
R. L. Isaacs ◽  
A. H. Kafrawy ◽  
...  
Keyword(s):  
Laser Fluorescence ◽  
Visual Examination ◽  
Pits And Fissures ◽  
In Vitro Comparison

scholarly journals Non-invasive, real-time reporting drug release in vitro and in vivo

2015 ◽  
Vol 51 (32) ◽  
pp. 6948-6951 ◽  
Author(s):  
Yanfeng Zhang ◽  
Qian Yin ◽  
Jonathan Yen ◽  
Joanne Li ◽  
Hanze Ying ◽  
...  
Keyword(s):  
Drug Release ◽  
Real Time ◽  
Near Infrared ◽  
Reporting System ◽  
Real Time Monitoring ◽  
Near Infrared Fluorescence ◽  
Non Invasive ◽  
Fluorescence Dye

Anin vitroandin vivodrug-reporting system is developed for real-time monitoring of drug release via the analysis of the concurrently released near-infrared fluorescence dye.

scholarly journals Performance in vitro of apex locators in determining root length in primary molars

2016 ◽  
Vol 64 (3) ◽  
pp. 244-249
Author(s):  
Fernanda Mara Paiva BERTOLI ◽  
Carolina Dea BRUZAMOLIN ◽  
Flares BARATTO FILHO ◽  
Débora Andrade da SILVA ◽  
Flávia Fagundes Sens TOMAZINHO ◽  
...  
Keyword(s):  
Correlation Coefficient ◽  
Digital Radiography ◽  
Root Canal ◽  
Gold Standard ◽  
Root Length ◽  
Root Resorption ◽  
Primary Molars ◽  
Visual Examination ◽  
Length Determination

ABSTRACT Objective: The aim of the study was to evaluate performance of digital radiographic and two electronic apex locators, Propex II and Root ZX in root canal length determination in primary molars. Methods: 25 primary molars were divided into two groups, G1 without root resorption and G2 with root resorption. The exams were performed using all methods by two experienced examiners, with 1-week interval. The gold standard was determined by visual examination. The methods were statistically analyzed regarding the values of reproducibility and correlated with the gold standard by Pearson´s correlation coefficient. Results: The root canal length determination coincided with gold standard in 22.7% for Root ZX, 17.5% for Propex II and 12.5% for digital radiography. Correlation values were higher in G1, the Root ZX presented the highest values. In G2 the digital radiography showed the lowest correlation. In G1, the intra-examiner reproducibility values ranged from 0.925 to 0.523, and interexaminer 0.863 to 0.670. In G2, the values of intra-examiner reproducibility ranges from 0.864 to 0.097, and inter was 0.774 to 0.379. Conclusion: It was concluded that the methods performance varying according to examiner's experience. The Root ZX presented the highest reproducibility and accuracy.

scholarly journals In Vitro Detection of Caries Around Amalgam Restorations Using Four Different Modalities

2017 ◽  
Vol 11 (1) ◽  
pp. 609-620 ◽  
Author(s):  
Tamara E. Abrams ◽  
Stephen H. Abrams ◽  
Koneswaran S. Sivagurunathan ◽  
Josh D. Silvertown ◽  
Warren M.P. Hellen ◽  
...  
Keyword(s):  
Fluorescence Spectra ◽  
Visual Inspection ◽  
Laser Fluorescence ◽  
Amalgam Restoration ◽  
Icdas Ii ◽  
Sensitivity Specificity ◽  
Natural Decay ◽  
Amalgam Restorations ◽  
Carious Teeth

Objective:The aim of this study was to evaluate the ability of PTR-LUM (The Canary System, CS), laser fluorescence (DIAGNOdent, DD), LED fluorescence (Spectra), and visual inspection (ICDAS II) to detect natural decay around bonded amalgam restorationsin vitro.Methods:Seventeen extracted human molars and premolars, consisting of visually healthy (n=5) and natural cavitated (n=12) teeth were selected. For the carious teeth, caries was removed leaving some decayed tissue on the floor and or wall of the preparation. For sound teeth, 3 mm. deep cavity preparations were made and teeth were restored with bonded-amalgam restorations. Thirty-six sites (13 sound sites; 23 carious sites) were selected. CS and DD scans were performed in triplicate at 2, 1.5, 0.5, and 0 mm away from the margin of the restoration (MOR). Spectra images were captured for the entire surface, and dentists blinded to the samples provided ICDAS II scoring.Results:Canary Numbers (Mean±SE) for healthy and carious sites at 2, 1.5, 0.5, and 0 mm from the MOR ranged from 12.9±0.9 to 15.4±0.9 and 56.1±4.0 to 56.3±2.0, respectively. DD peak values for healthy and carious sites ranged from 4.7±0.5 to 13.5±2.99, and 16.7±3.7 to 24.5±4.4, respectively. For CS and DD, sensitivity/specificity for sites at 2.0, 1.5, 0.5, 0 mm ranged from 0.95-1.0/0.85-1.0, and 0.45-0.74/0.54-1.0, respectively. For ICDAS II, sensitivity and specificity were 1.0 and 0.17, respectively. For Spectra, data and images were inconclusive due to signal intereference from the amalgam restoration.Conclusions:Using thisin-vitromodel, CS and DD were able to differentiate between sound and carious tissue at the MOR, but larger variation, less reliability, and poorer accuracy was observed for DD. Therefore, CS has the potential to detect secondary caries around amalgam restorations more accurately than the other investigated modalities.

The possibility of detecting subgingival calculus by laser-fluorescence in vitro

2003 ◽  
Vol 18 (1) ◽  
pp. 32-35 ◽  
Author(s):  
F. Krause ◽  
A. Braun ◽  
M. Frentzen
Keyword(s):  
Laser Fluorescence ◽  
Subgingival Calculus
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