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Rationale for the partial removal of carious tissue in primary teeth.

No consensus exists regarding the need for a second clinical session to remove carious dentin that remains in the pulp wall after partial caries removal. The purpose of the present article was to review studies that evaluated the effect of partial caries removal as provisional or definitive treatment on the dentinal microflora, the pulp response, or the progression of carious lesions in primary teeth. The results showed that partial caries removal performed in 1 session is more advantageous than removal in stages over 2 visits. This treatment, in addition to permitting the inactivation of caries lesions and reducing cariogenic micro-organisms in dentin, reduces the risk of pulp exposure caused by cavity reopening and excavation of remnant carious dentin. The favorable outcomes of partial caries removal in a single session support the indication of this modality as a definitive alternative restorative treatment for the primary dentition.