scholarly journals A Comparison of the Accuracy of Digital and Conventional Radiography in the Diagnosis of Recurrent Caries

2010 ◽  
Vol 11 (6) ◽  
pp. 25-32 ◽  
Author(s):  
Najmeh Anbiaee ◽  
Anousheh Rashed Mohassel ◽  
Mahrokh Imanimoghaddam ◽  
Seyed Mostafa Moazzami
Keyword(s):  
Sensitivity And Specificity ◽  
Digital Radiography ◽  
Conventional Radiography ◽  
Class Ii ◽  
Laboratory Research ◽  
Digital Radiographs ◽  
Carious Lesions ◽  
Significant Difference ◽  
Line Angle ◽  
Caries Lesions

Abstract Aim The purpose of this laboratory research was to compare the accuracy of digital and conventional bitewing radiographs in the diagnosis of recurrent caries under class II amalgam restorations. Methods and Materials This study involved 82 posterior intact teeth in which class II amalgam boxes were prepared. Carious lesions were simulated in half of the proximal boxes in the intersection between the facial or lingual wall and the gingival floor or midway between the facial and lingual walls. The other half of each tooth specimen served as a control. The prepared boxes were then restored with a Tytin FC (Kerr, USA) amalgam. The teeth were radiographed in the bucco-lingual direction to obtain images comparable to bitewing. Digital radiographs made with an intraoral CCD sensor and conventional radiography with dental E film were used. Three expert observers evaluated both types of images for the diagnosis of recurrent caries. Results Sensitivity and specificity values for direct digital radiography were 73 and 95 percent at the buccal and lingual line angles, respectively, and 29 and 90 percent at the mid-gingival floor, respectively. These corresponding values for conventional radiography were respectively 63 and 93 percent at the buccal line angle, 61 and 93 percent at the lingual line angle, and 44 and 95 percent at the mid-gingival floor. The total sensitivity and specificity values were 58 and 93 percent for digital radiography and 56 and 93 percent for conventional radiography. The overall accuracy was 76 percent for digital and 75 percent for conventional radiography. No significant difference in specificity or sensitivity was found between the digital and conventional radiography (p=0.104). Separately, no significant difference was seen between the buccal line angle and the mid-gingival floor, but a significant difference was seen between the two methods in the lingual line angle (p=0.004). Conclusion The digital and conventional bitewing radiographs had similar diagnostic accuracy for the diagnosis of recurrent caries. Lesions located at the buccal or lingual line angle were more easily detected than those at the mid-gingival region. Clinical Significance Although there was no significant difference between digital and conventional radiography in the diagnosis of recurrent caries, digital radiography requires less ionizing radiation, making this method of imaging suggested for routine dental practice. Citation Anbiaee N, Rashed A, Imanimoghaddam M, Moazzami SM. A Comparison of the Accuracy of Digital and Conventional Radiography in the Diagnosis of Recurrent Caries. J Contemp Dent Pract [Internet]. 2010 December; 11(6):025-032. Available from: http://www.thejcdp.com/journal/ view/volume11-issue6-anbiaee

scholarly journals Estimation of Clinical Axial Extension of Class II Caries Lesions with Ultraspeed and Digital Radiographs: An In-vivo Study

2008 ◽  
Vol 33 (6) ◽  
pp. 613-621 ◽  
Author(s):  
M. Bin-Shuwaish ◽  
J. B. Dennison ◽  
P. Yaman ◽  
G. Neiva
Keyword(s):  
Clinical Relevance ◽  
Class Ii ◽  
In Vivo Study ◽  
Digital Radiographs ◽  
Axial Extension ◽  
Caries Lesions

Clinical Relevance Both Ultraspeed and RVG-6000 radiographs underestimated the true clinical extension of Class II caries lesions; however, the RVG-6000 was more accurate in estimating the axial extension of a lesion than Ultraspeed films. Placement of Ultraspeed film was more pleasant for the patient than the RVG-6000 size 2 sensor.

scholarly journals A comparative study of the conventional and digital intraoral radiography methods for root canal length measurement

2014 ◽  
Vol 17 (4) ◽  
pp. 34 ◽  
Author(s):  
Fatemeh Salemi ◽  
Samira Saati ◽  
Sepideh Falah-Kooshki
Keyword(s):  
Root Canal ◽  
Gold Standard ◽  
Conventional Radiography ◽  
Length Measurement ◽  
Intraoral Radiography ◽  
Digital Technique ◽  
Digital Radiographs ◽  
Significant Difference ◽  
Phosphor Plates ◽  
Digital Intraoral Radiography

<p><strong>Objective</strong>: Measurement of root canal length is one of the most important stages of endodentic treatment, and any error at this stage can lead to the failure. This study aimed to compare conventional and digital intraoral radiography in measurement of root canal length.  <strong>   Material and Methods: </strong>In this study, 35 single-canal maxillary teeth were collected. Access cavities were prepared. An endodontic number 10#K- file was introduced into the canal, until the tip was visible at the apical foramen and the actual canal length (gold standard) was determined. After acquisition conventional radiographs using E-Ektaspeed and F-Insight film (Eastman-Kodak Co. Rochester, NY, USA) and digital radiographs using Photostimulable Phosphor Plates(PSP) (Soredex, Helsinki, Finland) and Charge Coupled Devices (CCD)(RVG, Trophy,NY,USA). they were examined separately with a two-week interval by two oral and maxillofacial radiologists. The data were analyzed with ANOVA and Tukey’s tests using SPSS-19 software (SPSS Inc., Chicago, IL, USA).<strong>   Result: </strong>No statistically significant difference was observed between different radiographies, and different observers (P &gt; 0.05). Nevertheless, in comparison with the gold standard, in all cases, the F-speed conventional radiography and the digital CCD radiography showed the highest and the lowest accuracy, respectively. Also, the PSP and the E-speed conventional radiography were in the second and third order of accuracy, respectively.<strong>  Conclusion: </strong>The use of digital radiography does not improve the accuracy of the root canal length measurement,but the digital technique has advantages,such as the reduced patient exposure ,eliminating the time consuming processing stages, and producing fast images.</p>

scholarly journals Effectiveness of Ozone with or without the Additional Use of Remineralizing Solution on Non-Cavitated Fissure Carious Lesions in Permanent Molars

2011 ◽  
Vol 05 (04) ◽  
pp. 393-399 ◽  
Author(s):  
Didem Atabek ◽  
Nurhan Oztas
Keyword(s):  
Wilcoxon Test ◽  
Clinical Severity ◽  
Ozone Treatment ◽  
Carious Lesions ◽  
Mandibular Molar ◽  
Significant Difference ◽  
Molar Teeth ◽  
Permanent Molars ◽  
Dependent Samples ◽  
Caries Lesions

ABSTRACTObjectives: The aim of this study was to evaluate the efficiency of ozone alone and with a re-mineralizing solution following application on initial pit and fissure caries lesions in permanent molars. Methods: Forty children (9-12 years) having non-cavitated fissure caries lesions on bilateral 40 first permanent mandibular molar teeth were participated in the study. Patients were randomly allocated to 2 experimental groups consisting of 20 subjects. In the first group, ozone was applied once for 40 seconds to the assigned test teeth of each pair. In the second group, ozone was applied once for 40 seconds to the assigned test teeth of each pair with the use of re-mineralizing solution. Progression or improvement of the caries was assessed at baseline, immediately after treatment and at 1-,2-,3-, and 6 month follow-up by comparing the DIAGNOdent values, Clinical Severity Indexes, Oral Hygiene Scores. The results were analyzed statistically by using the Wilcoxon-Test for dependent samples in each group. When comparing different test groups (control and experimental groups) the Friedman S test followed by the Mann-Whitney U test was used. Results: A statistically significant difference was found between all of the control and experimental test lesions in each group (P<.001). However, there was no statistically significant difference between the ozone treated groups and those using the additional re-mineralizing solution (P>.001). Conclusions: Ozone treatment either alone or combined with a re-mineralizing solution was found to be effective for remineralization of initial fissure caries lesions. (Eur J Dent 2011;5:393-399)

scholarly journals Lesion Activity Assessment of Early Caries Using Dye-enhanced Quantitative Light- Induced Fluorescence

2021 ◽  
Author(s):  
Seok-Woo Park ◽  
Si-Mook Kang ◽  
Hyung-Suk Lee ◽  
Sang-Kyeom Kim ◽  
Eun-Song Lee ◽  
...  
Keyword(s):  
Porous Structure ◽  
Fluorescence Intensity ◽  
Active Group ◽  
Sodium Fluorescein ◽  
Dye Penetration ◽  
Activity Assessment ◽  
Carious Lesions ◽  
Significant Difference ◽  
Early Caries ◽  
Caries Lesions

Abstract We aimed to determine whether dye-ehanced quantitative light-induced fluorescence (DEQLF), wherein the porous structure of carious lesions is filled in with a fluorescent dye, can be used to quantitatively and intuitively distinguish between active and inactive carious lesions. To simulate active and inactive caries, lesions were artificially formed on 126 bovine specimens. They were demineralized with 1% carbopol solution for 3 (A3), 5 (A5), and 10 days (A10). Half the specimens in each group were remineralized with 2% NaF (I3, I5, and I10). The specimens were dehydrated for 10 s and dyed with 100-µM sodium fluorescein for 10 s. Images were captured with a QLF-digital 2+ Biluminator. Fluorescence intensity of the lesions (ΔG) between the groups and absolute changes in ΔG (|ΔΔG|) between dehydration and dye penetration were compared using the independent t-test. ΔG in A3, A5, and A10 were higher than those in I3, I5, and I10 (P<0.001). In |ΔΔG| comparisons, dye penetration was 3.1-3.7 times higher than dehydration in the active group (P<0.001), and was 1.7-2.2 times lower than dehydration in I3 and I5 (P<0.05), with no significant difference in I10. DEQLF may be used to clinically evaluate early caries activity, and longitudnally monitor changes in lesion activity.

scholarly journals GAD65 antibody prevalence and association with c-peptide, HLA class II alleles in Beninese patients with type 1 diabetes

2017 ◽  
Vol 5 (8) ◽  
pp. 3406
Author(s):  
Kaossarath A. Fagbemi ◽  
Simon Azonbakin ◽  
Marius Adjagba ◽  
Razack Osseni ◽  
Rafiath Babio ◽  
...  
Keyword(s):  
Type 1 Diabetes ◽  
Sensitivity And Specificity ◽  
Class Ii ◽  
Hla Class Ii ◽  
Acid Decarboxylase ◽  
C Peptide ◽  
Significant Difference ◽  
Hla Dr3 ◽  
Hla Class Ii Alleles

Background: Antibodies to glutamic acid decarboxylase and particularly their isoforms in 65 kDa are one of markers for the diagnosis of the type 1 diabetes (T1D). The aim of this study is to assess the prevalence of GAD65 antibodies (GAD65Ab) and investigate the association of GAD65Ab with C-peptide values, HLA Class II alleles genotyping. The diagnosis of T1D was set up according to American Diabetes Association criteria.Methods: Radioimmunoassay was used to determine the GAD65Ab and C-peptide values. Class II HLA genotyping was performed in 51 patients with T1D and 51 healthy unrelated as control by using the PCR-SSP method. The sensitivity and specificity of the tests were calculated by standard formula.Results: Result revealed that GAD65Ab were present in 74.5% (38/51) of the patients with T1D. There was no significant difference between the positivity or the negativity of GAD65Ab and gender, onset and duration of diabetes, frequencies of HLA-DR4, HLA-DR3-DR4, HLA-DQB1*0201. However, GAD65Ab values are linked to C-peptide concentration (χ2 =15.73, P=0.0001), the presence of HLA-DR3 (χ2 =9.75, P= 0.002), HLA-DQA1*0501 (χ2 =4.09, P= 0.043) alleles. The GAD65Ab test sensitivity and specificity were 74.5% and 94.1%, respectively. The C-peptide test showed a sensitivity around 82.4 % and 86.3 % for the specificity.Conclusions: GAD65Ab showed to be a valuable early predictive marker and is associated with the risk to develop of T1D.

scholarly journals Obtaining Artificially Caries-affected Dentin for in vitro Studies

2014 ◽  
Vol 15 (1) ◽  
pp. 12-19 ◽  
Author(s):  
Adriana Bona Matos ◽  
Bruna Uglik Garbui ◽  
Cynthia Soares de Azevedo ◽  
Caroline Martins e Silva ◽  
Maria Regina Lorenzetti Simionato ◽  
...  
Keyword(s):  
Digital Radiography ◽  
Visual Inspection ◽  
Laser Fluorescence ◽  
Scanning Electron Micrographs ◽  
Significant Difference ◽  
New Perspective ◽  
Unerupted Teeth ◽  
Caries Lesions ◽  
Surface Gloss

ABSTRACT Aim This study evaluated and improved a protocol for obtaining standard caries-affected dentin (CAD) by Streptococcus mutans biofilm demineralization process. Materials and methods Forty-eight human molars were divided in six experimental groups, according to: period of cariogenic challenge (7, 14 or 21 days) and type of dentin (erupted or unerupted teeth). After complete cariogenic challenge sound and CAD dentin were evaluated by: visual inspection (VI), digital radiography (DR), optical coherence tomography (OCT) and laser fluorescence (LF). Results Visual inspection confirmed the formation of CAD based on tissue yellowing and loss of surface gloss. Digital radiography detected the presence of radiolucent images, suggesting caries. Three calibrated examiners viewed all images obtained by VI and DR and were able to distinguish healthy from CAD. Fisher's exact statistical test (p < 0.05) confirmed no difference between groups by VI (G1/G4: p = 0.6; G2/G5: p = 1; G3/G6: p = 1) or DR (G1/G4: p = 1; G2/G5: p = 1; G3/G6: p = 1). Both LF values and demineralization depth, as determined by OCT, were subjected to ANOVA (p < 0.05). For LF, a statistically significant difference was observed for the type of substrate (p = 0.001). For OCT, no statistically significant differences in the type of substrate (p = 0.163), length of cariogenic challenge (p = 0.512) or interaction between factors (p = 0.148) were observed. Scanning electron micrographs confirmed the presence of CAD; a more uniform demineralization surface was observed in the dentin of unerupted teeth. Conclusion This protocol suggests that standard CAD can be obtained in 7 days of cariogenic challenge using unerupted teeth. Clinical significance With the new perspective on the clinical treatment of caries lesions, bonding is increasingly performed to demineralize CAD, which is susceptible to remineralization. A useful protocol to standardize the production of CAD, by microbiological cariogenic challenge, would be an important contribution to laboratorial test in the field of operative dentistry. How to cite this article Azevedo CS, Garbui BU, Silva CM, Simionato MRL, Freitas AZ, Matos AB. Obtaining Artificially Caries-affected Dentin for in vitro Studies. J Contemp Dent Pract 2014;15(1):12-19.

scholarly journals Spanning the Horizon of Accuracy of Different Intraoral Radiographic Modalities: A Systematic Review

2017 ◽  
Vol 18 (12) ◽  
pp. 1206-1212 ◽  
Author(s):  
Mohnish Muchhal ◽  
Lav K Niraj ◽  
Devanshu Chaudhary ◽  
Irfan Ali ◽  
Kuldeep Dhama ◽  
...  
Keyword(s):  
Systematic Review ◽  
Dental Caries ◽  
Digital Radiography ◽  
Correct Diagnosis ◽  
Conventional Radiography ◽  
Primary Outcome Measure ◽  
Oral Disease ◽  
Health Concern ◽  
Cochrane Library ◽  
Significant Difference

ABSTRACT Aim This study was conducted with an aim to systematically review the literature for assessing the accuracy of intraoral radiographs in detection of dental caries. Introduction Despite the advancements in oral disease science, dental caries continues to be a worldwide health concern, affecting humans of all ages. Correct diagnosis of caries is critical both in clinical practice as well as in epidemiology and radiography are worthwhile adjunct for a thorough examination. Results A literature review was performed in PubMed Central and Cochrane library, Embase, and Google Scholar, and these databases were searched up to 2016. The primary outcome measure was to assess the accuracy of intraoral radiographs in the detection of dental caries based on sensitivity and specificity. The sensitivity for conventional radiographs for the detection of lesions in enamel (16–68%) and dentin (16–96%) was found to be superior as compared with other modalities of digital radiography, whereas the specificity of digital radiography was found to be superior in detection of lesion in enamel (77–96%) and dentin (84–100%) when compared with conventional radiography. Sensitivity of conventional radiographs was noted to be superior as compared with digital radiography, whereas in terms of specificity, digital was found to be superior to conventional radiographs. Conclusion Although there was no significant difference between digital and conventional radiography in the diagnosis of caries, conventional radiographs were able to detect carious lesion, in general, but for lesion to be detected precisely, digital was found to be superior. Clinical significance As digital radiography produces lower ionizing radiation, dental professionals should employ this method in their routine dental practice for diagnosing and treating carious lesions. How to cite this article Muchhal M, Niraj LK, Chaudhary D. Ali I, Dhama K, Patthi B. Spanning the Horizon of Accuracy of Different Intraoral Radiographic Modalities: A Systematic Review. J Contemp Dent Pract 2017;18(12):1206-1212.

Comparative Dentoskeletal Study of Class II Division 1 and Class II Division 2 Malocclusion Subjects

2011 ◽  
Vol 1 (1) ◽  
pp. 36-41
Author(s):  
Jyoti Dhakal
Keyword(s):  
Class Ii ◽  
Class Ii Malocclusion ◽  
Basic Difference ◽  
Cephalometric Radiograph ◽  
Significant Difference ◽  
Division 1 ◽  
Dentoskeletal Morphology ◽  
Division 2 ◽  
Dental Cast ◽  
Class Ii Division 1

The dentoskeletal characteristics of Class II malocclusion subjects were evaluated using cephalometric radiograph and dental cast of 60 untreated patients. The sample included 30 Class II Division 1 and 30 Class II Division 2 malocclusion patients. The inter-canine, inter-premolar, inter-molar, inter-canine alveolar, inter-premolar alveolar, inter-molar alveolar widths are measured on study models. The result showed statistically significant difference between the groups for mandibular inter-canine width only. The cephalometric analysis revealed that SNB angle was responsible for the skeletal sagittal difference between the two groups except for the position of maxillary incisors. No basic difference in dentoskeletal morphology existed between Class II Division 1 and Class II Division 2 malocclusions.

Diagnosis of Gastric Cancers: Comparison of Conventional Radiography and Digital Radiography with a 4 Million-Pixel Charge-coupled Device

Radiology ◽  
2000 ◽  
Vol 214 (2) ◽  
pp. 497-502 ◽  
Author(s):  
Gen Iinuma ◽  
Kyosuke Ushio ◽  
Tsutomu Ishikawa ◽  
Shigeru Nawano ◽  
Ryuzou Sekiguchi ◽  
...  
Keyword(s):  
Digital Radiography ◽  
Conventional Radiography ◽  
Charge Coupled Device ◽  
Gastric Cancers

scholarly journals Temporomandibular Joint Osseous Morphology of Class I and Class II Malocclusions in the Normal Skeletal Pattern: A Cone-Beam Computed Tomography Study

Diagnostics ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 541
Author(s):  
Xiao-Chuan Fan ◽  
Lin-Sha Ma ◽  
Li Chen ◽  
Diwakar Singh ◽  
Xiaohui Rausch-Fan ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Temporomandibular Joint ◽  
Cone Beam Computed Tomography ◽  
Class Ii ◽  
Class I ◽  
Cone Beam ◽  
Glenoid Fossa ◽  
Linear Measurements ◽  
Significant Difference ◽  
Skeletal Pattern

(1) Background—The aim of the present study was to evaluate the correlation between the temporomandibular joint (TMJ) osseous morphology of normal skeletal pattern individuals with different dental malocclusions by using cone-beam computed tomography (CBCT). (2) Methods—The CBCT images of bilateral TMJs in 67 subjects with skeletal class I and average mandibular angle (26 males and 41 females, age range 20–49 years) were evaluated in this study. The subjects were divided into class I, class II division 1, and class II division 2 according to the molar relationship and retroclination of the maxillary incisors. Angular and linear measurements of TMJ were evaluated and the differences between the groups were statistically analyzed. (3) Results—Intragroup comparisons showed statistical differences for articular eminence inclination, the width of the glenoid fossa, the ratio of the width of the glenoid fossa to the depth of the glenoid fossa, the condylar angle, and the intercondylar angle between the malocclusion groups. The measurements of the glenoid fossa shape showed no significant difference between the left and right sides. Females showed more differences in the morphological parameters of TMJ between the three malocclusion groups than the males. (4) Conclusion—The present study revealed differences in the TMJ osseous morphology between dental class I and class II malocclusions in the normal skeletal pattern.

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