Orthodontic bonding: is primer necessary?

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This review of in-vitro studies included 9 studies and found photo-curing time, force location, bracket area, and crosshead speed of the testing machine affected sheer bond strength. Use of adhesive resin primer did not affect bond strength.

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Dental bond strength improves with enamel etching

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This review of 10 in-vitro studies suggests that bond strength is improved by the use of multi-mode adhesives with prior acid etching only for enamel. This improvement was not seen with mild universal adhesives in dentine.

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Direct anterior restorations have good survival rates

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This review of direct anterior restorative materials included 21 studies and covered a wide range of materials and adhesive systems. Overall the failure rates were low for both class III and class IV restorations.

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