Table 1.

Composition of Palacos R-G and Copal bone cement provided by manufacturers

Components	Palacos R-G	Copal
Powder	40.8 g	42.85 g
Gentamicin sulphate	0.84 g (0.5 g gentamicin)	1.67 g (1 g gentamicin)
Clindamycin hydrochloride	–	1.18 g (1 g clindamycin)
Methylmethacrylate	33.8 g	35.41 g
Benzoyl peroxide	0.2 g	0.32 g
Zirconium dioxide	6.0 g	4.27 g
Chlorophyll	0.008 g	*
Liquid
Methylmethacrylate	18.4 g	18.4 g
N,N-dimethyl-p-toluidine	0.4 g	0.38 g
Chlorophyll	0.005 g	*
Hydroquinone	†	†

*Chlorophyll copper complex E 141; ^†amount not quantified.