1. Improving the quality of fixed prosthodontic services;Christensen;JADA,2000
2. Day-to-day fixed prosthodontics: a fast, easy, predictable approach;Christensen;JADA,1992
3. Complex fixed and implant prosthodontics: making nearly foolproof impressions;Christensen;JADA,1992
4. Now is the time to change to custom impression trays;Christensen;JADA,1994
5. What category of impression material is best for your practice?;Christensen;JADA,1997