At http://www.CullensAbcs.com find more free preschool videos. Activity ideas for you, and for children edutainment (educating and entertaining) videos that that support their development at home and in the classroom. Dr. Keller fixes Alligator's cavity to show children what to expect and feel comfortable when visiting the dentist for a cavity filling. Dr. Keller is a dentist at 189 N Bascom Ave # 100, in San Jose, California 95128 (408) 292-2848. You can visit his web site at http://www.smilesbydrkeller.com/.