0 product description, 0 indications for use, 0 the selective etching technique – GC EUROPE G-aenial Bond User Manual
Page 5: 1 why selective etching on enamel

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G-ænial Bond Technical Manual
the ideal product would deliver high adhesion to enamel whilst being “safe” on dentine, offering 
the advantages of both techniques. With these objectives in mind, Gc has developed G-ænial 
Bond, a new adhesive system. 
2.0 Product description
G-ænial Bond is a one component self-etching light-cured adhesive, specially developed for the 
selective etching approach in which only the enamel is etched prior to application of the self-
etching adhesive. therefore, the bond strength to enamel can be increased, while the quality of 
the bond to dentine remains optimal. as a truly flexible adhesive system, G-ænial Bond will also 
provide excellent bond strengths when used in the self-etch technique on enamel and dentine.
G-ænial Bond is designed to be used with the G-ænial range of restorative products; however it 
can also be used with other products such as composite resins (see indications for use below). 
3.0 indications for use
G-ænial Bond is recommended for the following indications:
1. Bonding of light-cured composites and acid-modified composites (compomers) to tooth structure.
2. Bonding of dual-cured luting and core build-up composites to tooth structure provided these
materials are light-cured.
4.0 the selective etching technique
the development of G-ænial Bond focused on offering a bonding system that can be adapted to 
all clinical situations, offering flexibility and the option to select the most clinically appropriate 
technique:
•	 The	self-etch	technique:	for	all	clinical	indications	where	adhesion	is	mainly	to	dentine;	avoids	the	
risk of nano-leakage and hypersensitivity.
• The selective etching technique: acid etching the enamel only for 10 seconds before applying
G-ænial Bond. this is indicated for uncut and cut enamel surfaces.
in fact, using selective etching offers the benefits of both techniques and avoids their respective 
disadvantages.
4.1 Why selective etching on enamel?
G-ænial Bond used with the self-etch technique provides sufficient bond strength to enamel. in 
some clinical situations, it may be preferred to further enhance bond strength. this can be achieved 
by selectively etching the enamel with phosphoric acid for 10 seconds prior to application of 
G-ænial Bond. test results have demonstrated that the bond strength will then be comparable to 
etch-and-rinse products. this will also decrease the risk of marginal staining.
