Loading...
Files
Date
relationships.isAuthorOf
Publisher
Philipps-Universität Marburg
item.page.supervisor-of-thesis
Abstract
Objectives
The aim of the present in vitro study was to investigate the influence of indirect pulp capping (IPC) materials on dentin bond in permanent teeth. Six different materials that are already used in clinical practice were examined. Particular attention was paid to the influence of each material on the bond strength and the effect of the distance to the capping material.
Material and methods
In 42 extracted third molars, one of the IPC materials was applied to the prepared dentin disk. Six groups of capping materials with six teeth each and a calibration group of six teeth were used. Six groups of capping materials with six teeth each and a comparison group without CP material consisting of six teeth were used. The Caries profunda materials consisted of three calcium hydroxide-based liners: Kerr Life, Dycal and Calcimol LC and three calcium silicate-based liners: Biodentine, ProRoot MTA and Theracal LC. After the IPC material was applied according to the manufacturer's instructions, a composite build-up (FiltekTM Z250, Solventum) was layered. The universal adhesive Scotchbond Universal was used. After 24 hours of storage in distilled aqua (37°C), a total of 1170 rods were sawn and the adhesion was tested using a micro tensile test (µTBS). For descriptive analysis, samples were examined under a fluorescence and scanning electron microscope. A mixed linear model (LMM) was used for exploratory statistics.
Results
In principle, a significant influence of the material on the bond strength (LMM,p = 0.001) and the distance to the applied IPC material on bond strength (LMM, p < 0.001) could be determined using a linear mixed model. There were material-specific differences. The Kerr Life group showed significantly lower adhesion values (35.2 MPa) compared to the Scotchbond control group (53.9 MPa) without considering the fixed effect “distance to IPC”. A significant influence of the distance to the applied capping material was shown for Kerr Life, Biodentine and Calcimol LC. These groups showed higher bond strengths further away from the IPC than close to the IPC treatment.
Conclusion
IPC materials can have an influence on the bond between composite and dentin. Both the material and the distance to the IPC treatment influence this bond strength.
Review
Metadata
Contributors
Supervisor:
Dates
Created: 2025Issued: 2025-06-04Updated: 2025-06-04
Faculty
Medizin
Publisher
Philipps-Universität Marburg
Language
ger
Data types
DoctoralThesis
Keywords
Klebeverbundfestigkeitcaries profundaindirect pulp treatmentadhesive bond strengthµTBSCaries profundamicro tensile bond strengthindirekte Pulpaüberkappungindirekte PulpabehandlungMikrozugversuchµTBSindirect pulp capping
DDC-Numbers
610
show more
Michalowski, Nora: Reduzieren Liner die regionale Dentinhaftung?. : Philipps-Universität Marburg 2025-06-04. DOI: https://doi.org/10.17192/z2025.0253.
License
This item has been published with the following license: In Copyright