How can you prevent teeth from cracking? I'm not sure what I'm doing wrong but nearly every tooth in all of my recently processed skulls have cracks in their teeth. The cracks usually occur around 2-3 weeks after the teeth have been whitened in peroxide. My skulls don't really stay in the freezer long and then I thaw them out in warm water overnight. They macerate at around 110 degrees, although my incubator has been at about 90 lately, and I never rapidly change the temperature of the water or the surroundings that the teeth are in. After their done whitening in peroxide I dry them with a towel and then put them in deli cups to continue drying, after about 2-3 weeks the hairline cracks begin to appear, and not just in the canines. In the raccoon I process every single one of its teeth produced hairline cracks except for the incisors. I have no idea what the issue is. Could it be my room's temperature? All my skulls are kept in my bedroom which generally fluctuates from around 65-75 degrees depending on the weather outside and my theromostat. I've also had hairline cracks appear in my Olive Baboon's canines, really pissed about those as I'm not sure I'll be able to remove them to repair them. The bobcat I finished processing a month or two ago is now showing hairline cracks in its canines and several molars. I'm stumped as to whats causing it. Is there anything I can do to stop them from appearing? I've heard of people filling teeth with glue but most of the teeth where the cracks appear don't have open roots so you can't fill them. Ugh someone please help me out.