Dear Dr. DiTolla,
I’m totally blown away by “Chairside Live,” which I was intrigued to watch for the first time when you interviewed Gordon [Christensen] — I believe it was Part 3. First, let me congratulate you on the entire concept, which I found entertaining, informative and just plain fun to watch. You and Megan remind me of the old Dan Aykroyd-Jane Curtin SNL “Point/Counterpoint” parody. In any event, great job! I loved your retching skit at the end — hilarious!
But you know you and your guest can’t spew out data without skeptical Michael (that’s me) chiming in. As far as Gordon’s claim that various drinks such as lemonade are 10-times more damaging to the external stain on BruxZir zirconia than Coca-Cola, a quick search (Yahoo Answers, NEWTON Ask-a-Scientist) found that the pH of Coke is 2.5, while lemonade is 3.8. On the other hand, another site (21st Century Dental) lists Country Time Lemonade as having a pH of 2.5 and Coke Classic at 2.53. Gordon also mentioned energy drinks being worse than Coke, but this latter site found that Gatorade has a pH of 2.95. Bottom line: It’s very hard for me to believe that these drinks are worse than Coke when it comes to dissolving external ceramic stains, and 10-times worse? Nah! Even if pH is not the be-all and end-all factor, 10-times worse is still hard to believe.
You also stated that Multilink® Automix (Ivoclar Vivadent) was “self-etching,” but in fact, it’s the primers in the kit that are selfetching, not the cement itself. Minor point, perhaps, but your viewers could possibly have come away thinking that Multilink Automix is similar to RelyX™ Unicem (3M™ ESPE™; St. Paul, Minn.), which, of course, it’s not. In any event, you again came up with a terrific idea, which I have to admit I’m jealous I didn’t think of first!
– Michael Miller, DDS