Investigation of the effect of indirect pulp capping materials on dentin mineral density
Braz. j. oral sci
; 22: e231303, Jan.-Dec. 2023. ilus
Article
in En
| LILACS, BBO
| ID: biblio-1442844
Responsible library:
BR218.1
ABSTRACT
Aim:
To evaluate the potential of inducing mineral density changes of indirect pulp capping materials applied to demineralized dentin.Methods:
A total of 50 cavities were prepared, 5 in each tooth, in extracted ten molars without caries, impacted or semi-embedded. The cavities were scanned by microcomputed tomography (µ-CT) after creating artificial caries by microcosm method (pre-treatment). Each cavity was subjected to one of 5 different experimental conditions control (dental wax), conventional glass ionomer cement (Fuji IX GP Extra), resin-modified calcium silicate (TheraCal LC), resin-modified calcium hydroxide (Ultra-Blend Plus), MTA (MM-MTA) and the samples were kept under intrapulpal pressure using simulated body fluid for 45 days. Then, the second µ-CT scan was performed (post-treatment), and the change in dentin mineral density was calculated. Afterward, elemental mapping was performed on the dentinal surfaces adjacent to the pulp capping agents of 5 randomly selected samples using energy dispersive X-ray spectroscopy (EDS) apparatus attached to a scanning electron microscope (SEM). The Ca/P ratio by weight was calculated. Friedman test and Wilcoxon Signed Ranks test were used to analyze the data.Results:
There was a significant increase in mineral density values of demineralized dentin after treatment for all material groups (p<0.05). Resin-modified calcium silicate had similar efficacy to MTA and conventional glass ionomer cement, but was superior to resin-modified calcium hydroxide in increasing the mineral density values of demineralized dentin.Conclusions:
Demineralized dentin tissue that is still repairable can be effectively preserved using materials with remineralization capabilitySubject(s)
Key words
Full text:
1
Index:
LILACS
Main subject:
Spectrometry, X-Ray Emission
/
Calcium Hydroxide
/
Silicates
/
Calcium Compounds
/
X-Ray Microtomography
/
Glass Ionomer Cements
Language:
En
Journal:
Braz. j. oral sci
Journal subject:
ODONTOLOGIA
Year:
2023
Type:
Article