Is the morphology and activity of the occlusal carious lesion related to the lesion progression stage?

Neves, Aline de Almeida; Vargas, Daniel Otero Amaral; Santos, Thaís Maria Pires dos; Lopes, Ricardo Tadeu; Sousa, Frederico Barbosa de

doi:10.1016/j.archoralbio.2016.08.004

Cited by 8 publications

(10 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The enamel surrounding carious cavities requires more attention in non-selective and selective excavation technique. Despite that the enamel surrounding open cavities is less demineralized than that in closed lesions, 33 it is still very demineralized and this condition could jeopardize the adhesion, as previously seen in laboratory studies. 12,22 Besides that, the presence of enamel margins is relevant, because dentinal margins showed more marginal imperfections, gaps, and microleakage.…”

Section: Discussionmentioning

confidence: 71%

Bonding of universal adhesive system to enamel surrounding real-life carious cavities

et al. 2019

View full text Add to dashboard Cite

This study aimed to evaluate the bond strength of a universal adhesive system to enamel surrounding real-life carious cavities. Twentyeight permanent molars (n = 7) with carious lesions in dentin were subjected to selective carious tissue removal to firm dentin and had their crowns sectioned longitudinally. A universal adhesive system (Single Bond Universal [SBU] used in either etch-and-rinse and self-etch strategies) was compared with an etch-and-rinse Adper Single Bond 2 (ASB) and a selfetch Clearfil SE Bond (CSE) adhesive systems (control systems). Adhesives were applied on the enamel, assumed demineralized, surrounding the cavity margins and on sound enamel (control substrate). Composite cylinders were built (0.72 mm 2) and microshear bond strength (µSBS) test was performed after 24 h of water storage. The µSBS values (MPa) were analyzed using two-way ANOVA and Tukey's post hoc tests (α = 0.05). Bond strength values obtained in demineralized enamel surrounding carious cavity margins were significantly lower than that obtained in sound enamel (distant from carious cavity margins) (p = 0.035). The bonding strategy of the SBU did not influenced the bond strength values, which were higher than that obtained with ASB. CSE showed similar µSBS values to ASB and SBU in the self-etch mode. In conclusion, the bond strength to enamel assumed demineralized is lower than to sound enamel. The enamel surrounding carious cavities jeopardize the bonding of universal adhesive system. The bond strength of universal adhesive is similar, regardless to bonding strategy.

show abstract

Section: Discussionmentioning

confidence: 71%

Bonding of universal adhesive system to enamel surrounding real-life carious cavities

et al. 2019

View full text Add to dashboard Cite

show abstract

“…However, although the morphology of the teeth has been extensively studied, the mineral density of the teeth has not been adequately evaluated. In the field of dentistry, most of the dental mineral density studies have been micro-CT studies performed in vitro, and in vivo studies did not examine the differences between the mineral densities of the teeth [ 15 , 23 , 24 ].…”

Section: Discussionmentioning

confidence: 99%

Can the Density of Mineralized Dental Tissues (Dentin and Enamel) Be Measured and Compared with 3D Cone Beam Computed Tomography in Cases of Ectodermal Dysplasia?

et al. 2022

View full text Add to dashboard Cite

Background Since 3-dimensional cone beam computed tomography (CBCT) started to be used in dentistry, mineral density can now be examined with computer software from the data on the images obtained. Detailed and clear images at different slice intervals can be obtained with CBCT, and mineral density can be measured from the image data on a computer with a Hounsfield unit (HU) scale. In addition to the broad opportunities presented by CBCT, this feature has presented a wider perspective to researchers. Material/Methods In this study, the CBCT images obtained from patients with the genetic disorder of ectodermal dysplasia were compared with the images of a control group to determine differences in mineralization of the teeth and to show that these could be compared by measuring the mineral density of dentin and enamel tissues using the HU scale on data from CBCT images. This opens new opportunities for cognitive and implementation research. Results In the study, CBCT images of 14 ectodermal dysplasia and 14 control group cases previously obtained for various reasons were used. Mineral density measurements were made from 4 different regions of the teeth of the ectodermal dysplasia and control groups (incisor edge of the crown, the center buccal, cervicale line, and apex of the teeth), and the groups were compared. Conclusions The aim of this study was to provide a new overview of the feasibility and suitability of mineralization measurement of dentin and enamel dental tissues with CBCT in ectodermal dysplasia and control groups.

show abstract

“…It has been shown that dentin mineral density is significantly lower in active compared to inactive lesions [13]; however, assessing average mineral density values in enamel, especially in non-cavitated lesions, is a challenge since it requires manually tracing an area of interest that has poorly defined boundaries, as initial lesions characteristically do [14]. An alternative methodological approach using micro-CT to assess lesion activity has been to follow a mineral density plot profile of the lesion from the enamel surface towards the pulp [14,15,24].…”

Section: Discussionmentioning

confidence: 99%

“…Advantages of micro-CT include its nondestructive nature (allowing sample preservation), production of high-resolution images in three dimensions, and ability to analyze the internal structure of lesions from any desired location. While micro-CT analysis has been well studied for various applications, such as determining lesion severity and tooth anatomy [10][11][12], only preliminary work has been completed regarding its utility for assessing caries activity [13][14][15]. Differences in mineral content of the enamel surface layer on micro-CT have been observed between active and arrested early carious lesions, with active lesions demonstrating a characteristic demineralization pattern [15,16].…”

Section: Introductionmentioning

confidence: 99%

Micro-CT Mineral Density Profile as Reference Standard for Early Carious Lesion Activity Assessment.

AdA

Moss

et al. 2021

Preprint

View full text Add to dashboard Cite

A challenging and crucial component to clinical caries diagnosis is diagnosing the activity of early lesions because it may have a significant impact on treatment decisions. This study aims to utilize microtomographic (micro-CT) scans of the enamel smooth surface layer to serve as a reference standard for future ex vivo caries activity assessment validation studies. Sound and non-cavitated (ICDAS 1-3) smooth surfaces (n=59) of extracted permanent teeth were examined for caries activity by calibrated individuals via visual-tactile examination. Each surface was scanned via micro-CT and line plot analysis generated plots of the mineral density against lesion depth, where the AUC was calculated. AUC thresholds were established to classify sound, remineralized, and demineralized surfaces against the gold standard examiner’s ICCMS assessment of sound, inactive, and active lesions, respectively. Diagnostic thresholds were associated with caries ICCMS activity classification using AUC mineral density values of the most external 96 μm of enamel. The established thresholds demonstrated 76.3% agreement with the ICCMS assessment in identifying demineralized lesions (k=0.45), with high sensitivity (0.73) and specificity (0.77). This study demonstrates quantifiable differences among demineralized, remineralized lesions, and sound surfaces, which contributes to the establishment of micro-CT as a reference standard for caries activity that may be used to improve clinical and technological caries examinations.

show abstract

Is the morphology and activity of the occlusal carious lesion related to the lesion progression stage?

Cited by 8 publications

References 25 publications

Bonding of universal adhesive system to enamel surrounding real-life carious cavities

Bonding of universal adhesive system to enamel surrounding real-life carious cavities

Can the Density of Mineralized Dental Tissues (Dentin and Enamel) Be Measured and Compared with 3D Cone Beam Computed Tomography in Cases of Ectodermal Dysplasia?

Micro-CT Mineral Density Profile as Reference Standard for Early Carious Lesion Activity Assessment.

Contact Info

Product

Resources

About