The bonding technique that incorporated dentin removal from the fragment before bonding showed greater fracture strength across all groups. Fragment dehydration for 48 h caused a reduction in fracture strength, which was recovered by a 30-min rehydration.

A study was conducted during 2005 and 2007, aiming at estimating the value of observation tourism of the estuarine dolphin in the Cananéia region and the satisfaction levels reported by the tourists. The measure of tourist satisfaction can be considered as high and the application of the Travel Cost Method depicted that the economic evaluation of this activity was estimated to be US$ 556,733.98. It is anticipated that this strong evidence of the economic benefits from dolphin watching will originate a more concrete and efficient public awareness of the estuarine dolphins, as well as of the environment in which they live.

No abstract