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Year : 2017  |  Volume : 7  |  Issue : 5  |  Page : 272-278

Relationship between the remaining dentin thickness and coronal pulp status of decayed primary molars

1 Department of Pediatric Dentistry, Faculty of Dental Medicine, Lebanese University, Beirut, Lebanon
2 Department of Biology, Laboratory of Cancer Biology and Molecular Immunology, Faculty of Sciences-1, Lebanese University, Beirut, Lebanon
3 Department of Biology, Faculty of Sciences, Lebanese University, Beirut, Lebanon
4 Department of Molecular Biology, Laboratory of Neurovascular Signaling, Institute of Molecular Biology and Medicine, Free University of Brussels, Gosselies, Belgium
5 Department of Pediatric Dentistry, University of the Mediterranean Aix-Marseille II, Marseille, France

Correspondence Address:
Roula Berbari
Department of Pediatric Dentistry, Faculty of Dental Medicine, Lebanese University, Beirut
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jispcd.JISPCD_267_17

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Aims and Objectives: The aim of this study was to assess the correlation between the remaining dentin thickness (RDT) in deep decayed primary molars and the inflammatory status and bacterial composition of the corresponding coronal pulp. We hypothesized that RDT could be used as a reference for clinicians in assigning the indication for pulpotomy. Materials and Methods: Pulpotomies were conducted on the cameral pulp of 48 primary molars. Microorganisms, such as Lactobacillus sp., Streptococcus sp., and Prevotella sp., were identified and quantified and levels of tumor necrosis factor-alpha (TNF-α) and interlukin-6 (IL-6) were assessed. The correlation between the pre-operative RDT based on radiographic images and inflammatory-microbial profiles in vitro was evaluated using Spearman's rho correlation coefficient. All data analysis was performed using a statistical software program (SPSS 20.0, SPSS Inc., Chicago, IL, USA). Results: Immunological and microbiological studies revealed elevated levels of TNF-α and IL-6 cytokines, and Lactobacillus sp., Streptococcus sp. and Prevotella sp. in the cameral pulp with an RDT measuring up to 1.1 mm. No significant relationship could be established between RDT, inflammatory status and microbial content of the pulps. Conclusion: The RDT remains a key clinical factor that needs to be assessed when establishing the indication for pulpotomy. Additional parameters that can improve this therapy should be investigated in the future.

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