One of their most recent publications is A Preliminary Clinical Study on the Use of Tricalcium Phosphate as an Apical Barrier. Which was published in journal Journal of Endodontics.

More information about John Coviello research including statistics on their citations can be found on their Copernicus Academic profile page.

A Preliminary Clinical Study on the Use of Tricalcium Phosphate as an Apical Barrier

A one-appointment procedure for obturating permanent teeth with nonvital pulps and open apices was evaluated clinically. During nine months of observation, the one-appointment treatment using tricalcium phosphate or calcium hydroxide as a substitute apical barrier was as effective as the conventional multi-appointment technique that seeks a natural apical barrier.