Clinical and radiographic outcomes of direct pulp capping therapy in primary molar teeth following haemostasis with various antiseptics: a randomised controlled trial

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ABSTRACT

Aim

This was to evaluate the clinical and radiographic outcomes of direct pulp capping (DPC) therapy in primary
molar teeth following haemostasis with various antiseptics for 12 months.

Methods

A total of 70 vital
primary molar teeth with deep dentin caries were randomly allocated to different antiseptic groups. After observing the
pinpoint exposure, 0.9 saline solution (SS, control), 0.5 sodium hypochlorite (SH), 2 chlorhexidine
digluconate (CHX), or 0.1 octenidine dihydrochloride (OCT) was applied with sterile cotton pellets for 3 min before
calcium hydroxide (CH) DPC therapy. Statistical evaluation: The intergroup radiographic success criteria were analysed
using a Kruskal-Wallis test in each follow-up period at a confidence interval of 95.

Results

After 12 months, all
groups showed a clinical success rate of 100 (no clinical failures were observed at the time of pulpectomy or
extraction), and the overall radiographic success rates were OCT (100) > SH (94.74) > CHX
(93.3) > SS (84.21), respectively (p > 0.05). OCT did not exhibit any failures. The undesirable
radiographic failure types (pulpectomy or extraction) were mostly observed in the SS group.

Conclusion

Compared with
SS, the success of conventional CH usage in DPC therapy of primary molar teeth could be enhanced by providing acceptable
disinfection features with antiseptic solutions. OCT seems to have relative beneficial effects compared to SH and
CHX.

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