The hidden mechanism behind the exceptional durability of tooth enamel must be elucidated before enamel-inspired materials can be further developed. Show moreView article Tribological characterization of human tooth enamel E. Sajewicz, in Biomaterials and Medical Tribology, 2013 8.2 Structure and ...
incisor- a tooth for cutting or gnawing; located in the front of the mouth in both jaws molar,grinder- grinding tooth with a broad crown; located behind the premolars crown- the part of a tooth above the gum that is covered with enamel ...
In humans the primary dentition consists of 20 teeth— four incisors, twocanines, and fourmolarsin eachjaw. The primary molars are replaced in the adult dentition by the premolars, or bicuspid teeth. The 12 adult molars of the permanent dentition erupt (emerge from the gums) behind the prima...
incisor- a tooth for cutting or gnawing; located in the front of the mouth in both jaws molar,grinder- grinding tooth with a broad crown; located behind the premolars crown- the part of a tooth above the gum that is covered with enamel ...
52 When the infundibular cavity is worn away, it leaves behind a small ring of the remaining apical aspect of the infundibular enamel, located on the lingual aspect of the tooth, which is called the enamel spot (enamel ring or mark).52 Due to the slower wear of enamel as compared to...
Behind them are eight premolars and eight to twelve molars depending on those wisdom teeth. The molars do the majority of the work chewing the food that you eat. They do a great job on those carrots you like so much! Did you know we not only help you bite and chew but also help ...
Snakes can have multiple generations of replacement teeth forming behind each functional tooth, indicating very frequent replacement, but they show no external signs of resorption until an old tooth is about to be shed. External resorption normally signals the onset of tooth replacement, and visible ...
The word crocodile conjures a picture of a fierce reptile with large, sharp teeth ready to snap and grasp anything that moves. 提及鳄鱼这个词,在我们眼前会呈现出这样一幅画面:一个凶恶的爬行动物,长着巨大锋利的牙齿,时刻准备着撕咬和抓住一切可以动的东西。 19 Her eyes were laughing behind her veil...
And if people are faking freckles, as Collins pointed out, then perhaps the gap-tooth trend might not be long behind. “People are going of their way to pretend they have a flaw they don’t have,” Collins says. “So while the orthodontist might be seeing anyone ask for gap teeth, I...
somebody’s teeth chatter (=hit together quickly because someone is cold or afraid)My teeth began to chatter, and I regretted leaving my jacket behind.be cutting a tooth (=have one of your first teeth growing)Poor little Patrick was cutting another tooth and we had hardly had any sleep....