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Microhardness Measurements on Tooth and Alveolar Bone in Rodent Oral Disease Models
Published on: April 26, 2024
Dentin microhardness of primary teeth undergoing partial carious removal.
Débora Martini Dalpian1, Luciano Casagrande, Renata Franzon
1School of Dentistry, Franciscan University Center, Santa Maria, Brazil.
The Journal of Clinical Pediatric Dentistry
|October 2, 2012
Summary
Indirect pulp capping (IPC) in primary teeth showed similar dentin microhardness regardless of capping material. This finding is crucial for pediatric restorative dentistry and understanding dentin remineralization post-treatment.
Area of Science:
- Pediatric Dentistry
- Dental Materials Science
- Caries Management
Background:
- Partial caries removal followed by indirect pulp capping (IPC) is a conservative approach for primary teeth.
- Assessing dentin microhardness is vital for evaluating the success of IPC and remineralization potential.
Purpose of the Study:
- To evaluate the dentin microhardness of primary teeth treated with IPC after partial caries removal.
- To compare the effects of a calcium hydroxide base liner versus a self-etching primer on dentin microhardness.
Main Methods:
- Primary molars underwent IPC with or without a calcium hydroxide liner, restored with composite resin.
- Microhardness of demineralized dentin under restorations was analyzed after tooth exfoliation.
- Kruskal-Wallis test was used for statistical analysis (p < 0.05).
Main Results:
- No significant microhardness differences were found between the Dycal (DY) and Clearfil SE Bond (CSE) groups at most depths.
- The CSE group showed significantly higher microhardness at 35 microm when carious teeth were included.
- At 700 microm depth, no microhardness differences were observed among all groups.
Conclusions:
- Indirect pulp capping in primary teeth results in comparable dentin microhardness, irrespective of the capping material used.
- The choice between calcium hydroxide liner and self-etching primer does not significantly impact long-term dentin microhardness under IPC restorations.
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