Violation

Conventional glass ionomer cements

do not require a protective liner, such as calcium hydroxide in a deep preparation

have a lower modulus of elasticity than zinc phosphate cements.

elicit less pulp response than zincoxide and eugenol cements

are superior to zinc phosphate cement for luting porcelain (all ceramic) crowns

bond mechanically to calcium in enamel and dentin

Please describe the matter of abuse