Tube Failures

A retrospective survey of the causes of bracket- and tube-bonding failures.

OBJECTIVE To investigate the causes of bonding failures of orthodontic brackets and tubes and the effect of premedicating for saliva reduction. MATERIALS AND METHODS Premedication with atropine sulfate was administered randomly. Failure rate of brackets and tubes placed in a group of 158 consecutive patients was evaluated after a mean period of 67 weeks after bonding. RESULTS The failure ra...

Investigating transition pathways and transition failures and proposing policy solutions to cope with transition failures; Iran’s wind turbine industry

This paper aims to investigate transition paths and reasons of failure of Iran’s wind turbines industry in transition to sustainability successfully. In this regard, a qualitative approach and case study strategy have been used. For this purpose, based on type of national innovation system, the transition path and sustainability transition status of the wind turbines industry in selected countr...

Coordination Failures

"Controlled failures".

ASSESSING ADHESIVE BOND FAILURES: MIXED-MODE BOND FAILURES EXPLAINED By

The level of understanding of adhesive bond failures within the flight safety community is not as robust as it could be. Generally, most investigators are broadly aware of cohesion failure (fracture of the adhesive) and adhesion failure (a slick failure at the interface). They may also have some limited knowledge of common causes for bond failures such as bond-line voids, which is one cause of ...