Journal
DIAGNOSTICS
Volume 12, Issue 8, Pages -Publisher
MDPI
DOI: 10.3390/diagnostics12082022
Keywords
vitality pulp testing; pulse oximetry; LDF; pulp capping
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This study aimed to evaluate the pulpal response of primary teeth using pulse-oximetry in a canine model after direct pulp capping. The results showed correlations between pulse-oximetry, laser Doppler flowmetry, computer tomographic densitometry, and histological analysis. Different pulp capping materials resulted in varying degrees of pulpal inflammation, which were not correlated with the obtained pulse-oximetry values.
(1) Background: This study aimed to assess the pulpal response of primary teeth by pulse-oximetry (PO) in a canine model, following direct pulp capping (DPC). (2) Methods: Forty-eight primary teeth from eight canine subjects were divided into three treatment groups, based on the DPC material-calcium hydroxide (CH), MTA, Biodentine (TM))-and three corresponding control groups. Data from PO pulp testing were correlated with laser Doppler flowmetry (LDF) testing, computer tomographic (CT) densitometry and histological analysis; the experiment lasted 14 days. (3) Results: SpO(2) recordings revealed statistically significant differences (p = 0.002, <0.05) between the treatment and control groups, and no significant differences (p = 0.257, >0.05) were observed between treatment groups. LDF recordings showed significant differences (p = 0.002, <0.05) between the treatment and control groups and identified significant differences between materials (p = 0.001, <0.05). CT densitometry indicated vital pulps in all teeth, with pulpal inflammation detected in 6/8 CH-capped teeth and 2/8 MTA-capped teeth. Histologic evaluation confirmed vital pulp in all specimens, with different degrees of inflammation. (4) Conclusions: Within its limitations, the present study confirms the diagnostic value of PO evaluation of pulpal status in primary teeth with histologic means after pulp-capping procedures in a canine model. However, various degrees of pulpal inflammation elicited by different pulp-capping materials seem not to correlate with the obtained PO values.
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