Influence of Dentin Priming with Tannin-Rich Plant Extracts on the Longevity of Bonded Composite Restorations

Table 3

Major compounds identified in plant extracts with UPLC/DAD-ESI/HRMS/MS.

#	Compound name	Rt (min)	m/z (Da)	RPA (%)	Extract
1	Gallic acid	0.8	169.0139	36.6	GCH
2	Methoxybenzoic acid derivative	3.9	151.0570	26.8	GCH
3	Caffeine	1.3	195.0881	84.3	GUA
4	Malic acid	0.7	133.0145	77.7	MTZ; CTC
	Citric acid	0.7	191.0193
5	Quinic acid	0.7	191.0562	10.5	CTC
6	Chlorogenic acid	0.9	353.0879	58.0	CTC
7	Tannic acid	—	>1200	—	TNA

Number of compounds identified in Figure 1. Rt: retention time; RPA: relative peak area.