If the men and women of the U.S. Army's 402nd Civil Affairs Battalion depart for their next trouble spot with toothaches, it will be through no fault of the School of Dental Medicine at the University at Buffalo. The UB dental school is offering first-priority, at-cost dental services to the soldiers in the unit as it prepares for possible mobilization. The collaboration is the first such between a dental school and an Army Reserve special operations unit, and, if successful, could be used as a model for dental support to Reserve battalions across the country.