烦人的智齿 - 为什么人类进化没有淘汰掉它？
Why Do We (Still) Have Wisdom Teeth?
译文简介
你有拔过智齿吗？如果有，那你有没有想过，为什么智齿这种东西在人类进化的过程中没有被淘汰？接下来我们就以人类智齿为切入点，探讨其生物学特征、普遍存在问题及其进化起源。
正文翻译
人类口腔中的第三磨牙因其生长阶段晚、空间适应性差且常伴随病理问题，在医学领域被称为智齿。这种特殊的牙齿结构普遍存在于现代人类口腔中，却因其频繁引发阻生、龋齿及邻牙损伤等问题，成为临床牙科最常见的拔除对象。从生物学视角观察，智齿的生长规律具有显著特殊性：其萌发时间通常延迟至个体发育成熟阶段，约在18至25岁间开始突破牙龈，此时人类颌骨发育已基本定型。统计数据表明，超过半数人口至少存在一颗阻生智齿，而98%的阻生病例源自第三磨牙，这种高发率与人类颌骨空间的进化性缩减存在直接关联。
进化生物学研究揭示，智齿作为灵长类动物共有的牙齿结构，在人类早期祖先中曾发挥重要咀嚼功能。黑猩猩、大猩猩等现存类人猿仍保持较宽阔的颌骨结构，其第三磨牙能正常萌发并参与食物研磨。但人类自直立人阶段开始，随着脑容量扩大与颅骨结构改变，颌骨逐渐缩短变窄。这种形态学变化与人类饮食结构的转变形成协同进化关系：烹饪技术的出现使食物趋向软化，降低了对强力咀嚼器官的依赖，颌骨肌肉附着区域随之缩小。在此过程中，第三磨牙的生理空间被持续压缩，最终导致现代人类普遍面临智齿萌发空间不足的困境。
现代人类中约20%个体存在先天缺失部分或全部智齿的现象，这种遗传变异提示该器官正处于进化消退阶段。从进化痕迹理论分析，智齿已从功能性器官转变为痕迹器官，其存在仅反映物种进化历程而非现实生理需求。这种器官退化现象与阑尾的进化轨迹具有相似性，均表现为原始功能的丧失与解剖结构的残留。临床医学实践显示，智齿阻生不仅造成局部炎症与疼痛，更可能引发牙列拥挤、邻牙根吸收等复杂病症，这促使预防性拔除成为现代牙科的常规处置方案。
从生物力学角度观察，智齿萌发时的机械压力可能打破原有牙列平衡，这种生物学特性与人类颌骨容积缩减形成矛盾关系。比较解剖学研究证实，尼安德特人等古人类已显现出颌骨缩小的趋势，但其程度远不及现代人类。这种加速进化现象或与近万年来农业文明带来的饮食精细化密切相关。智齿问题因此成为人类进化过程中形态适应与文化变革相互作用的具体例证，既体现生物器官对环境变迁的滞后性适应，也折射出文明发展对生物体结构的深层影响。
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Got mine ripped out in Recruit Training. Inadequate anesthesia, only a day to recover, and digging food out of the poorly-stitched holes with the back of a safety pin in the middle of the night made it a very uncomfortable experience.
Word of advice: if anyone is planning on joining the military, get your wisdom teeth out beforehand.
我的智齿是在新兵训练时被强行拔掉的，麻醉效果差，只给了一天恢复时间，半夜还得用安全别针的背面从缝线粗糙的牙洞里抠食物残渣，整个过程非常折磨人。在此奉劝一句：如果有人打算参军，入伍前先把智齿拔了吧。
I am 63 and still have all four of my wisdom teeth. I have had many hygienists and dentists comment that they are tiny and "cute".
我今年63岁，四颗智齿都还在。好多牙医和洁牙师都评价说它们又小又“可爱”。
Navy yanked all 4 of mine at once. Got 1 day to recover, then I had to go back to work looking all pitiful
海军一次性拔掉我全部四颗智齿，只给了一天恢复时间，然后就让我可怜巴巴地回去上班了。
I was in my late 20s and wondering why my wisdom teeth hadn’t come through yet. One day I went to dentist for a back tooth to be taken out and the dentist took an x-ray of my mouth and was like "this won’t hurt as much as when you got your wisdom teeth out" and when I said I’d never had them out he was confused and said I don’t have any in the x-ray.
Turns out I was just born without wisdom teeth. Always just assumed everyone had them.
快30岁时，我还在纳闷智齿怎么还没长出来。某天我去拔后槽牙，牙医拍了X光片后说“这可比你拔智齿轻松多了”，结果我告诉他从没拔过智齿，他一脸困惑地指着片子说：“你压根没长智齿啊。”结果发现我天生就没有智齿，之前一直以为所有人都有呢。
One of my molars fell out and my wisdom tooth finally has the chance to actually do its job. And even then, it requires years of help to actually move into the right spot. And my other wisdom teeth are literally horizontal. It is impressive how bad they are at being useful teeth.
我的一颗臼齿掉了，智齿终于有机会发挥作用，但即便如此，它还需要好几年辅助才能移到正确位置。另外几颗智齿干脆是横着长的，真是佩服它们“长残了”的本事。
原创翻译：龙腾网 https://www.ltaaa.cn 转载请注明出处
The Marine Corps decided to take mine out preemptively. Got the afternoon off. PT the next morning was a 3 mile battalion run. 40 years later, I can still feel the hollow dull thud every time my feet hit the ground.
海军陆战队决定先下手为强拔了我的智齿，当天下午放了假。结果第二天一早的体能训练是全营三英里跑。四十年过去了，每次跑步脚掌落地时，我还能感受到那种空洞的钝痛。
too few of us 'moderns' die from wisdom teeth complications for there to be a evolutionary sextion pressure. So we are stuck with them.
我们“现代人”很少因智齿并发症死亡，自然选择的压力不够，所以只能继续和它们共存了。
I’ve always been SOOOOO grateful to have ALL FOUR of my WT grow at the same time (around age 19-20) but straight up instead of causing a mess :D I was so scared to have to remove them. But they just popped up and didn’t trigger any issue. Whew !!
我特别庆幸自己四颗智齿在19-20岁时同时长齐，而且笔直没添乱！之前超怕要拔牙，结果它们乖乖冒头，一点麻烦都没惹，真是谢天谢地！
i must be a throwback. I have all my wisdom teeth, and they came in nicely with no issues. I’m tall and have a larger jaw which probably makes sense. I have Norwegian ancestors as well. I’ve always wondered about the genetics of wisdom teeth. Both of my children had 2 removed.
我可能是个返祖案例——四颗智齿都长得整整齐齐没出问题。我个子高、下颚宽大，祖上还有挪威血统，大概基因起了作用。不过我一直好奇智齿遗传规律，毕竟我的两个孩子都拔了两颗。
Mine all finally burst through my gums in my late 30’s. They shoved my other teeth forward enough that the root of one of my other molars started impinging on a major facial nerve and giving me a permanent migraine. When we eventually figured this out and had them all removed. Instant relief! I’m the only person I know who had less pain after oral surgery.
我的智齿直到快40岁才全部冒头，结果把其他牙齿顶到前移，导致一颗臼齿的牙根压迫面部神经，害我得了长期偏头痛。最后发现问题根源并拔掉智齿后，瞬间解脱！我大概是唯一一个觉得拔牙后反而更轻松的人。
I never grew any and can always find time to sit on the couch and eat ice cream. No excuses needed.
我根本没长智齿，所以随时能瘫在沙发上吃冰淇淋，连借口都不用找。
As one of the very few people who has had miraculously zero problems with my wisdom teeth growing out, I STILL have issues with them on a frequent basis anyway, like when I wanna extend my jaw to the sides and they end up grinding upon the very back of it.
虽然我属于智齿生长全程零问题的幸运儿，但日常还是会被折腾——比如侧张下巴时，智齿总会磨到口腔最深处。
Before dentistry, humans probably already have significant tooth decay by 25yo. I imagine the back teeth have the most decay since they are the hardest to clean. Thus, we may have an extra back set of teeth that come in later when our primary rear molars ultimately begin rotting out. One man’s hypothesis...
在没有牙科医学的年代，人类可能25岁就满口烂牙了。后槽牙最难清洁，估计最早蛀光，所以进化出智齿作为替补，等原装后槽牙烂完再上岗——以上纯属个人假说。
I’m happy mine grew in fine and I’ve never had any problem, but my little brother on the other...
我的智齿长得挺好从没出问题，但我弟弟就...
I had a 1 hour drive home in rural 100F Alabama while I threw up blood into a plastic bag. That was fun.
我曾一边在阿拉巴马州乡下100华氏度的天气里开车一小时回家，一边往塑料袋里吐血，真是段“美好”回忆。
原创翻译：龙腾网 https://www.ltaaa.cn 转载请注明出处
my daughter had ZERO wisdom teeth, per her dentist. i have an impacted one and i’m so glad she won’t have to deal with that.
我女儿压根没长智齿（牙医确认过）。我自己有颗阻生智齿，超庆幸她不用遭这罪。
I’m over 40 and have never had my wisdom teeth. None, not even extracted. My mouth is already tiny for different reasons, so I’m glad to know I have another small bonus in not having had my wisdom teeth.
我40多岁了，从没长过智齿，也没拔过。本来就因其他原因口腔空间小，所以很庆幸少了这个负担。
My jaw was so small that I didn’t have room for all my regular molars. I had to have 2 removed on the bottom, and my upper jaw was expanded to make room for them (one is still sticking out to the side). When my wisdom teeth started coming in, it was a given that all 4 had to come out.
我下颚太小，连正常臼齿都排不下，不得不拔掉两颗下牙，上颚还被扩开腾位置（至今有颗牙歪在一边）。所以智齿一冒头，四颗全拔毫无悬念。
My teeth were screwed up from a young age. I had a giant tooth gap on both my top and bottom row - probably should have had braces, but we didn’t have the money for them. So when my wisdom teeth finally came in and pushed both rows of my teeth together, I felt like I won the lottery
我从小牙列不齐，上下排都有大牙缝——本该戴牙套矫正，但家里没钱。结果智齿长出来后把两排牙挤拢了，简直像中了彩票！
I had a friend who never had a single cavity and had all his wisdom teeth til the day he died. I on the other hand had cavities from early in life, never had a tooth that came in in-line, had braces in high school, and had all 4 wisdom teeth surgically removed in my 20’s. At almost 60, I have almost no teeth left.
我有个朋友一辈子没蛀牙，智齿保留到去世。而我从小就蛀牙，牙齿没一颗整齐，高中戴牙套，20多岁动手术拔四颗智齿。现在快60岁，牙都快掉光了。
Mine came out at 16. I came out at 17... Cue Rogers and Hammerstein.
我16岁拔了智齿，17岁出柜... 请自行脑补《音乐之声》BGM。
Thankfully I had the second best wisdom teeth outcome: All 4 properly aligned, no issues. Best outcome? No having any.
谢天谢地，我的智齿结局算第二好：四颗整齐无碍。最好的结局？当然是压根不长！
I’m one of the lucky few that had their wisdom teeth grow in with no issues. It was a big surprise when I moved and got a new dentist.
我是少数智齿顺利生长无阻的幸运儿。后来搬家换牙医，对方看到片子时超惊讶。
When I was 19, my wisdom teeth literally tried to kill me, contributing to permanent nerve damage in my maxillofacial musculature and leaving massive gaps in my skull and jaw after their removal. The pain prior to their removal was causing me to have severe migraines and blackouts.
19岁时，我的智齿差点要了我的命——导致颌面部肌肉永久性神经损伤，拔除后颅骨和下颌还留下大空洞。拔牙前的剧痛让我频繁偏头痛甚至昏厥。
All four of mine came in straight and clean (big jaw, small teeth, plenty of room). Dentist wisely decided not to mess with them. Actually kinda nice having the extra crushers in the back.
我四颗智齿都笔直干净（下颚宽、牙小、空间足），牙医明智地决定不碰它们。多几颗后槽牙碾碎食物其实挺爽。
My brother and I(twins) both no issues with ours. Guess we were fortunate.
我和双胞胎兄弟的智齿都没出过问题，算走运了。
原创翻译：龙腾网 https://www.ltaaa.cn 转载请注明出处
All my wisdom teeth came in good, just need to work on keeping them and my gums healthy :D
我智齿长得挺好，现在只需努力保持牙齿和牙龈健康就行啦
I literally just got mine removed on Monday
我周一刚拔完智齿。
I got mine removed. Years of fear of the pain to have all 4(impacted like they are fully horizontal) removed just for the dentist to do an amazing job and have zero pain even for the first couple of hours after anesthesia wore off. Barely used pain killers. I’m happy bc mine got so bad to the point they made pockets next to them that food got really stuck.
终于拔了四颗全水平阻生的智齿。怕疼怕了好几年，结果牙医技术超神，连麻醉失效后都没怎么痛，止痛药都没咋吃。之前智齿烂到旁边形成凹洞总卡食物，现在解脱了！
Lots of horror stories here. I’ll add mine to the mix. I broke a wisdom tooth on a stealthy chicken bone. For a while, it didn’t cause any problems but eventually I decided discretion was the better part of valour and went to the dentist. An X-ray showed that two were impacted already. So an appointment with a specialist later... The specialist pulled out those teeth very quickly - almost frighteningly so. After returning home, I was in a good deal of pain but there was little to be done. I was supposed to recover over the weekend but a nasal infection set in. I was off sick from work for a full week. Still, it removed a lot of fear of dentistry in me that many of my generation have. Routine work is nothing compared to the trouble those wisdom teeth caused.
我也贡献个恐怖故事：有次啃鸡骨头时暗戳戳硌裂了智齿。起初没事，后来还是怂了去看牙医，结果X光显示两颗已阻生。约专家拔牙时，对方手法快得吓人。回家后剧痛难忍，本想周末养伤，却并发鼻窦炎，最后请了一周病假。不过经此一役，倒治好了我们这代人对牙医的恐惧——毕竟常规治疗可比智齿作妖轻松多了。
There are people (a lot in Asia) that have even smaller jaws, to the point they don’t even have enough space for the "basic" teeth. That’s why having crooked teeth in Japan is common, and the only way to fix it is to get rid of the four small ones on the sides of the front ones, and then arrange the rest with the now enough space using braces. But at least most of them don’t get the Wisdom teeth anymore, otherwise the room gets even more packed and teeth have no where else to go than in between and behind/ahead of others (impacted).
很多亚洲人下颚更小，连正常牙都排不下，所以日本普遍牙列不齐，解决办法通常是拔掉前牙两侧四颗小牙，再用牙套调整剩余牙齿。好在多数人不长智齿，否则口腔更拥挤，牙齿只能乱挤成阻生状态。
I only had one wisdom tooth come in at all, and when it was time to take it out the dentist realized it was loose enough he could just reach in there and pull it out with his fingers. My recovery time was extremely fast.
我只长了一颗智齿，到要拔的时候，牙医发现它已经松到可以直接用手指拔出来，所以恢复期特别快。
I was lucky enough to be born without any of the 4 wisdom teeth.
我运气很好，天生就没有四颗智齿。
Only three out of four grew out for me, and none gave me any problems.
我的四颗智齿只长出了三颗，而且都没出过问题。
I didn't have wisdom teeth, but sitting on the couch eating ice cream for a week makes me wish I did!
虽然我没长过智齿，但看到别人能借口躺沙发吃一星期冰淇淋，我都忍不住羡慕了！
Mine came through in my early 40s. One was able to be removed in the chair, where the other 3 were severely impacted and had to be removed under general anesthesia. Apparently the operation was harder took longer. Ended up with 2 weeks off work, with the first week mainly eating cold soft foods like icecream, yogurt, moose, erc.
我的智齿40岁出头才长出来。其中一颗能直接拔，剩下三颗严重阻生必须全麻手术。据说手术难度高又费时，最后我请了两周假，第一周基本靠冰淇淋、酸奶和慕斯这类冷软食度日。
I got two of my wisdom teeth removed and it was a hell. The dentist had to apply a lot of anesthesia, and three weeks after the procedure, my lips are still numb. The pain was so intense that I literally cried for days. And the fact that I'm diabetic made it worse, because the healing process is more complicated.
我拔了两颗智齿，过程简直是地狱。牙医打了超多麻醉，但术后三周嘴唇还发麻。痛到我连哭好几天，再加上本身有糖尿病，伤口愈合更麻烦。
I had all 4 wisdom teeth grow in straight. Even have a little space behind the wisdom teeth.
我四颗智齿都长得笔直，后面甚至还有空隙。
I only ever had one wisdom tooth, and even that one, though it did come in impacted, dissolved completely on its own before the dentist could pull it. My dentist said on my x-ray they couldn't even see any roots, for the one wisdom tooth I got then lost or where the other three would have been.
我只长过一颗智齿，虽然阻生，但还没等拔就自己溶解消失了。牙医说X光片上看不到牙根，连原本该长其他三颗智齿的位置也空荡荡的。
I’m in my 40s and recently had a tiny little wisdom tooth irrupt even though I had my wisdom teeth removed in my 20s. It’s the size of a baby tooth and my dentist were so enamored.
我40多岁居然又冒了颗迷你智齿，明明20多岁就全拔过了。这颗牙只有乳牙大小，牙医们看得啧啧称奇。
My wisdom teeth are like: "Why are we here...just to suffer?"
Tried to get them removed, but got told that I might need them when I'm older to bridge other teeth that may fall.
I can't stand them, I'm always biting my cheek inevitably when I eat something I really enjoy, they make me bleed.
我的智齿仿佛在说："我们来这世界就是为了受苦吗？"
想拔掉却被劝告说年纪大了可能需要它们当备用牙，现在每次吃美食必咬到脸颊出血，实在受不了。
原创翻译：龙腾网 https://www.ltaaa.cn 转载请注明出处
I have all my wisdom teeth left, the upper once are a bit slanted but anyhow a dentist got surprised i still had all left.
我四颗智齿都还在，上排有点歪，但牙医看到时还是很惊讶。
only just started the video but, i was born with bad molars, they had to be pulled when i was 10 years old and the wisdom took the place of the bad molars and since then i had no teeth problems
视频刚开始看，但我天生臼齿不好，10岁就拔了，结果智齿顶替了位置，之后再没出过问题。
I had all 4 impacted and needed surgery. I was able to handle the pain of both surgery and recovery. The one thing that still made me uncomfortable was the smell of the drill cutting into my wisdom tooth.
四颗智齿都阻生需要手术。我能忍痛，但电钻磨牙的气味至今想起都反胃。
I had all four come up fine but the dentist removed them for some reason. Years later I grew one mini two-point replacement I still have
智齿本来长得挺好，但不知为何被拔了。多年后竟又长出一颗迷你双尖牙，现在还留着。
All 3 of mine grew in with no issues. I never had the 4th but had plenty of room for it.
三颗智齿顺利长出，第四颗没长但空间足够。
Got all mine, and they all fit and came in correctly!
四颗智齿齐全，长得整整齐齐！
the timing of this upload is crazy because i have two wisdom teeth removal in 3 hours
这视频上传得太巧了——我三小时后就要去拔两颗智齿！
I had to get mine all four removed because they never stopped growing and started hindering chewing got removed one by one as they started emerging.
四颗智齿持续生长影响咀嚼，只能分批拔除。
I don't have any Wisdom teeth and XRays have shown I never will! 24 and will thankfully never have to deal with this pain, and I am so thankful for that
X光显示我天生没智齿，24岁的我永远不用受这罪，谢天谢地！
I had one of my lower ones removed just 2 days ago. I had all 4 come in just fine, but because of space constraints, the gums partially overlapped the back parts and i couldn't over time keep them clean enough and got holes, so i removed the top 2 in my early 30s and now the first of my lower ones at 37, and will probably have to remove the other lower later this year or next. The top ones came out easy, but the bottom one not as much... My dentist left the bottom of the roots inside the jaw and just flattened and polished them so they wouldn't irritate and potentially infect the gums. I'm on paracetamol, but managed to keep working the same day, yesterday and today. But I've heard of several people that had pieces of their jaw bone removed to get the roots out, and they were knocked out for a few days on the strong stuff.
两天前刚拔左下智齿。虽然四颗都长齐了，但牙龈覆盖导致蛀牙，30多岁拔了上排两颗，现在37岁开始处理下排。下排比较难拔，牙医留了点牙根在颌骨里磨平防感染。我吃扑热息痛就能上班，但听说有人被削骨取根，得躺好几天。
I was lucky to only have the two top wisdom teeth and they weren't causing any pain. However, I still decided to have them removed since it was free. I asked if I got numbed, instead of being knocked out, if I'd be able to drive myself home and I could. It was one of the strangest feelings to be able to hear the saw and feel my whole head being pulled down, but not being able to feel anything inside my mouth. No pain or the texture of the gloves and tools being used. There was a good week where I had to be careful of how I ate, but that didn't change what I ate. I still enjoyed my favorite food, I just had to eat slower and smaller bites to avoid damaging the wounded area of my mouth or cause infection.
只有上排两颗智齿且不痛，但免费就拔了。局麻后自己开车回家，听着电锯声感觉脑袋被拉扯，嘴里却毫无知觉。恢复期照样吃香喝辣，只是得小口慢咽。
When my wisdom teeth started coming out I purposly grinded my teeth to rip up my gums to stop the swelling, now they just hang semi out and one of my mollars is rotated.
智齿萌出时我故意磨牙撕开牙龈消肿，现在它们半露不露，还带歪了一颗臼齿。
In Dutch we call them "verstandskiezen". That can be translated literally into English as wisdom teeth (verstand = wisdom, kiezen = teeth although the word specifically refers to the molars), but you can also use a different emphasis and pronounce it "VERstandskiezen", in which case it would refer to molars in the back of the mouth, which is also correct. Since I'm missing 3 out of 4 of them and the 4th one has never emerged from my jaw, I make it a point to use the second pronunciation.
荷兰语叫"verstandskiezen"，字面是"智慧牙"，但重音放前面就指"后槽牙"。我缺了三颗智齿，第四颗也没长，所以坚持用第二种发音。
I got mine out... I was fine the same day, took the next day off not because I had to... just... why not!
It's a day off and was expected! I'll take it!
拔完智齿当天就活蹦乱跳，第二天纯粹找借口休假——有便宜不占王八蛋！
I have them all and still have a bit of space left
四颗智齿齐全，牙床还有空位。
Im still dealing with the tooth decay caused by my wisdom teeth... my 2nd molar on my top right side had to be removed entirely as well
还在处理智齿引发的蛀牙，右上第二臼齿也保不住了。
原创翻译：龙腾网 https://www.ltaaa.cn 转载请注明出处
My X-rays always showed I didn’t have wisdom teeth or twelve year molars…until I was 25! A single wisdom tooth mysteriously showed up way late in life. It took another 5 years to break through the gums. I’m 43, and it’s still in my mouth, not causing problems.
X光一直显示没智齿，结果25岁突然冒出一颗，又花了五年才破龈。现在43岁，这颗迟到智齿乖乖待在嘴里不惹事。
I never developed any wisdom teeth. So I never had to deal with their problems. I remember my dentist saying that it was unusual to have someone without even one develop!
从没长过智齿，牙医都说这种情况很少见。
I still have my wisdom teeth.
I lost one top and one bottom molar early (injury) and we just adjusted the whole set to let the wisdom teeth take their places over a year.
Handy to have spares!
还留着智齿。早年受伤失去上下各一颗臼齿，花一年调整让智齿顶替，自带备用牙真方便！
Glad to know it's not totally uncommon to be missing wisdom teeth. I had braces when I was younger and was worried my wisdom teeth would mess up all that work. Turned out, each of my parents were missing two and I never developed any. My brother wasn't so lucky, he had all four.
很高兴得知并非只有我天生缺少智齿。我年轻时戴过牙套，当时总担心智齿会毁掉矫正成果。结果发现我父母各自缺失两颗智齿，而我则完全没长过。我弟弟就没这么幸运了，他四颗全长齐了。
I had two or three of my wisdom teeth (I legitimately don't remember which), and as they started growing in, they began irritating the sides of my mouth. That caused inflammation, which blocked my parotid duct (salivary tube). Caused a ton of jaw and even neck pain on and off for several months before the doctor said, "time to get those things removed". I hate needles, so I asked if there was a way they could do the extraction without the Novocaine shot; they said no, but they gave me nitrous oxide before the shot, and man... that's the only time I've had N2O, but I love it I wasn't giggling like the movies always show, I just was kind of... calm. Like I was living in a dream a bit, where nothing bothered me. As they worked on my mouth, I could feel everything, and I knew it should hurt -- especially that initial needle -- but I just... didn't care about it
TL;DR: I had my wisdom teeth removed and learned that N2O is a miracle drug in the same day
我有两到三颗智齿（真心记不清具体数量），当它们开始生长时不断摩擦口腔内壁，导致炎症并堵塞腮腺导管。这让我下颌甚至颈部反复剧痛了好几个月，直到医生宣布"必须拔掉"。我讨厌打针，于是询问能否不用麻醉直接拔牙，结果被拒绝。不过他们在注射前给我用了笑气——天啊，虽然这是我唯一一次体验一氧化二氮，但彻底爱上它了！我并没有像电影里演的那样傻笑，反而异常平静，仿佛活在梦境里。虽然能清晰感受到所有操作（尤其是最初的针头），但就是完全不在乎疼痛。
简单来说：拔智齿当天，我发现了笑气的神奇魔力。
Don’t ignore your dentist when they say they need to come out! Was told to get them out at 20, got them out at 29 and the headaches from teeth not having room are not joke
千万别无视牙医的拔牙建议！我20岁就该拔智齿，结果拖到29岁。牙齿拥挤导致的头痛真不是开玩笑的。
I'm in my 50s and I'm still not 'wise' - never had my wisdom teeth emerge - got 2 gummy spaces at the back of my top teeth. I remember when my older sister had hers out - mine, just never did anything.
五十多岁的我依然不够"智慧"——智齿从未萌出，上排牙后方留有两处凹陷。记得姐姐当年拔过智齿，而我的压根没动静。
I only ever got 1 wisdom tooth, but I wasn't expected to have any. My teenager was also expected to not get any, but ended up getting two, which needed to be pulled.
我只长过1颗智齿，而原本预测我不会有任何智齿。我孩子也被认为不会长，结果冒出两颗需要拔除的。
I had one of my second molars extracted as a kid and later my orthodontist moved the wisdom tooth in it's place
童年时拔了第二磨牙，后来正畸医生将智齿牵引到空缺位置。
The reason they come in late was because we used to wear teeth down. Especially the molars, so a worn down molar would just give way for the last one and fall out. Today we keep our teeth but nature hasn't caught up with that fact yet.
Fun fact: most people get their wisdom teeth unnecessary removed, as your adult jaw need about 8 years to adapt to them. Only if a wisdom tooth is loose or there is an infection underneath it should it be pulled. And if that is the case you heal up quick. The fact that you spend a week on the couch eating ice-cream is unfortounally the proof you tooth was taken out unnecessarily.
智齿晚萌是因为古人牙齿磨损快，磨牙磨平后自然脱落给智齿腾位。现代人牙齿保养得当，但进化没跟上这个变化。
冷知识：多数人无需拔智齿，成人颌骨需约8年适应期。只有松动或引发感染的才需拔除，且恢复很快。需要卧床吃冰淇淋一周的情况，反而说明拔牙是过度治疗。
It would have been interesting for you to cover the latest advances in preventing the buds of wisdom teeth from ever developing, thus avoiding the likely need for wisdom tooth extraction.
要是能讲讲预防智齿胚芽发育的新技术就更有趣了，这样能彻底避免拔牙需求。
I....(Clears throat, adjusts collar and puts on a smirk) never had wisdom teeth. My dentist said I was lucky because my siblings and my mother had them.
我嘛…（清清嗓子，整整衣领，露出得意笑容）天生没长智齿。牙医说这很幸运，毕竟兄弟姐妹和母亲都长过。
I had only a small remnant of one on my top left. It became impacted and, despite being the size of a pea, caused some significant pain.
左上颌曾有个豌豆大小的智齿残根，阻生后引发剧烈疼痛。
I am one of those who wisdom teeth never came in all the way. I had a bad experience with a dentust as a late teen and stopped going. My gums over the wisdom teeth never receded so food was trapped there leading to decay. I had all four pulled at different times because they were so hard to remove my new dentist actually got tired. That was in 1998 when I was 31. 57 now and still go to the same dentist.
我的智齿从未完全萌出。青少年时期遭遇糟糕牙医后拒绝就诊，牙龈长期覆盖智齿导致食物嵌塞腐烂。四颗分次拔除时异常困难，新牙医都拔到体力不支。1998年31岁时完成，现年57岁仍找同一位牙医。
原创翻译：龙腾网 https://www.ltaaa.cn 转载请注明出处
I have a tooth missing (just never grew) so I was kinda looking forward to a wisdom tooth on that side to even things out… to date it’s the only wisdom tooth that has grown out, and it decided to grow into my cheek muscle was brutal!
天生缺颗牙，曾期待同侧智齿补位。结果唯一萌出的智齿竟长进颊肌，痛到怀疑人生。
I'm almost 48 and my dentist recommends I keep mine. I've never had an issue, never even felt them come in that I'm aware of! My brothers and my childrens all grew in impacted :(
48岁，牙医建议保留智齿。从未感觉它们萌出，更没出过问题。但兄弟和孩子们的智齿都阻生了。
I had mine all cut out from the inside at once in high school. My jaw didn't have room for all the normal teeth, and I had to have one of the front ones pulled. I have a tiny jaw.
高中时一次性内切拔除所有智齿。因颌骨太小，连门牙都拔过一颗腾空间。
Probably still here because there's no reason for them to not be, at least in evolutionary terms - most people who live in societies where wisdom teeth are a common issue also live in societies with decent healthcare that can get them removed, and if no one dies, the "wisdom teeth: yes" gene(s) won't go away as quickly. Why do we have tailbones? Nobody dies faster because of their tailbone, so there's no reason for a "tailbone: no" gene to become advantageous and spread more
智齿留存于进化层面是因为：存在智齿问题的群体通常享有完善医疗，不会因此死亡，相关基因就不会快速淘汰。就像尾椎骨虽无用却未被淘汰——没人因它死亡，自然无进化压力。
Yeah I was born with only 3 and I kept them for awhile and held off on removing them. They all grew like 90% out and everything was fine. But one day I got the feeling they where a little bit more sore then usual. Waited a day or two and didn't like how it was going so I made the decision I wasn't going to tempt fate and got them out in the next few weeks.
It's the only time I've had a surgery and been put out. I got lucky and didn't have any adverse effects.
I even experimented with less and less oxi they gave me as it was healing up. I always hear horror story's from people that stuff doesn't go as well.
天生3颗智齿，原本生长良好就没拔。某天异常酸痛，观察两天后决定不冒险，几周内全部拔除。这是唯一一次全麻手术，幸运的是无副作用。恢复期还尝试减少止痛药用量，毕竟常听别人说会遭遇并发症。
i had 6! i’ve had 4 taken out because they were dangerously close to the nerve, but i still have my two extra up top
我有6颗智齿！因4颗临近神经而拔除，目前还剩上排两颗额外智齿。
My dad didn't get his removed until they'd impacted his other teeth, and he was put under for a removal surgery that was like 4 hours. Meanwhile, I preemptively got mine removed before they could try to squeeze in (back in my late teens), and I had a much shorter op where I remained awake.
If they're expected to cause problems, it might be better to get them removed sooner than later.
父亲拖到智齿挤压邻牙才拔，经历4小时全麻手术。我十几岁就预防性拔除，保持清醒完成短时手术。若预判会出问题，早拔早好。
原创翻译：龙腾网 https://www.ltaaa.cn 转载请注明出处
I have mine, never been an issue. Dentist has always been pleased with my care of them, too.
智齿健在，从未惹祸。牙医也称赞我护理得当。
One of my brothers only had a couple, while my other brother was born without any wisdom teeth. I of course had to have all four surgically removed.
我有个兄弟只长了两颗智齿，另一个兄弟天生就没有智齿。而我呢，最后不得不通过手术把四颗全拔了。
原创翻译：龙腾网 https://www.ltaaa.cn 转载请注明出处
Had my first one pulled out in my early 20's, the two in the upper jaw they kind of dealt with themselves in time without me even knowing it. I have one remaining and it seems to be in good condition. Like another poster mentioned I had a small jaw as well but had bracers growing up so they had already pulled out 4 teeth.
我20岁出头拔了第一颗智齿，上颌的两颗后来不知不觉自己脱落了。现在还剩一颗，状态还挺好。和之前某位网友说的一样，我下颚骨也偏小，不过小时候戴过牙套，所以已经拔过四颗牙了。
I had one impacted (it was unerupted and completely sideways) and I got both removed on that side. I'm 43 and still have the other 2 on the other side that haven't caused any issues.
我右下颌有颗阻生智齿（完全埋在牙龈里且横着长），最后把那一侧两颗都拔了。现在43岁，左侧两颗一直没出问题，就这么留着。
I’m glad my wisdom teeth fit just right. I actually see quite a bit of jaw left in my mouth but I definitely do have my wisdom teeth sitting comfortably back there! I did have 4 extra teeth that were essentially 4 really sharp canines
庆幸我的智齿长得刚刚好，虽然下颚空间看着还有余量，但四颗都安稳待在后面。不过之前倒是多长过四颗尖尖的犬齿。
All four of mine were impacted, had to have them pulled surgically as they started pushing on my other teeth - took one month to fully recover
四颗全是阻生齿，因为挤压邻牙不得不手术拔除，结果花了一个月才彻底恢复。
I only had two. Had to have them removed about 24 years old. I ate fish tacos with a friend that night. I did whatever and just took really good care to irrigate and clean super frequently. Worked out fine for me
我就长了两颗，24岁左右拔的。当晚居然还和朋友吃了鱼肉卷饼！之后勤用冲牙器、加强清洁，恢复得倒挺顺利。
Two separate operations for me, before they started to come out; bottom ones first, then a year or so later my top ones.
分了两次手术：智齿还没冒头时先拔了下颌两颗，隔了一年左右又拔了上面两颗。
Thought I'd get away with never having any wisdom teeth, since the buds kept not showing up on x-rays. I was 24 (!) when two upper wisdoms finally developed. They came in just fine, oddly enough, but my dentist yanked them anyway, on the grounds they were so far back they'd never get properly brushed.
本来以为能逃过一劫——X光片总照不出牙胚。结果24岁突然长出上颌两颗智齿！虽然长得端正，但牙医坚持要拔，理由是位置太靠后根本刷不到。
I don't have any of them (as in it is never there in the first place), yet my younger sister has all 4.
我天生没长过智齿，但我亲妹妹四颗齐全。
I had all 4 until 12/2023 (43 at the time), when I cracked my bottom right WT on an unpopped popcorn kernel. I got the 3 others removed to balance my bite.
2023年12月前都保留着四颗智齿（当时43岁），结果右下颌那颗被没爆开的玉米粒硌裂了。为了咬合平衡，干脆把剩下三颗也拔了。
I didn't develop bottom wisdom teeth, but I remember when my tops came in. I will never complain when babies cry over teething, as I was a 22yo crying teething baby lol. But I still have them! They're crooked (turned out) but they fit.
没长下颌智齿，但上颌两颗萌出时，22岁的我哭得像个长牙的宝宝。现在终于理解婴儿为什么哭闹了！不过这两颗虽然长歪了，倒也不碍事，就这么留着。
I only had 2 wisdom teeth. My dentist had a different slant on it, he said we don't need them so eventually people won't have them. That was 50 years ago!
我只长过两颗智齿。50年前牙医就说过：这牙齿没用，人类迟早会进化到不长智齿。
原创翻译：龙腾网 https://www.ltaaa.cn 转载请注明出处
I got them removed with proper surgery after ten years of braces. After surgery it looked like I had a ping pong ball growing out my gums. At least I had ice cream and two days off school.
戴了十年牙套后做手术拔智齿，术后牙龈肿得像塞了乒乓球。不过能名正言顺吃冰淇凌、请两天病假也算值了。
Half my high school had the wisdom tooth extraction surgery around the same time. The teachers were amused at who handled pain in interesting ways. I would often turn into a growling little ball around lunchtime. To this day, I cannot stand mushy noodles or rice or American pudding.
高中时半个年级集体拔智齿，老师们围观大家千奇百怪的忍痛方式。我那会儿每到饭点就缩成团哼哼，至今看到糊状面条、米饭或美式布丁就反胃。
I have 3 and I'm glad I have them. I've had 2 molars taken out and the wisdom teeth have moved forward into their place. I still have one on the bottom not fully erupted but it's not harming me, so it can just stay there until I need it. I don't see the point in removing teeth for no reason. Especially when there are risks associated with extraction.
我有三颗智齿且很庆幸留着。之前拔过两颗臼齿，智齿就往前移位补了缺。虽然下颌那颗没完全萌出，但既然不碍事就留着呗。实在不理解没事找事拔牙的逻辑，何况手术还有风险。
I had a dentist, 20 years ago, tell me that I'm more "evolved" because I had no wisdom teeth.
20年前有牙医说我"进化程度更高"，因为天生没长智齿。
原创翻译：龙腾网 https://www.ltaaa.cn 转载请注明出处
I just had my last Wisdom Tooth extracted a couple months ago and there was no laying on the couch, didn't even take a single day off work, and certainly no Ice Cream. Eating anything that cold sounds like an insane and painful idea.
两个月前拔完最后一颗智齿，既没卧床休息也没请假，更没吃冰淇凌——想想都觉得冰的会痛死人好吗！
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I never felt a thing... One day they just started poking out of my gums, and started slowly coming out. I didn't even know what they were at the time (in my early 20's).
完全没遭罪…20岁出头某天突然发现牙龈冒尖，后来慢慢长出来。当时根本不知道这就是智齿。
I had one with a bend to it; took the dentist getting in there pretty hard to yank it out. Didn’t feel a thing, but I will never get the sound of scraping bones out of my head lol
有颗智齿带弯钩，牙医费老大劲才拽出来。虽然不疼，但器械刮骨头的声响这辈子忘不了。
I had 1 wisdom tooth extracted in my early 20s and then all 3 at once extracted at 27. I'm fortunate my body heals quickly so I was over it in a few days but still crazy to think about
20出头拔了一颗，27岁又一口气拔三颗。好在恢复快，几天就没事了，不过现在回想还是觉得离谱。
I developed wisdom teeth on the left side. I had them removed at age 27 shortly after they came in. 2 years later I had TMJ surgery on the left side of my jaw.
左侧长过智齿，27岁刚萌出就拔了。结果两年后同侧下颌关节还得动手术。
I got all 4 of mine pulled due to proof pushing/crowding all of my front teeth and jawline. Making a functioning tooth line possible.
因为智齿挤压前牙和颌骨，四颗全拔了，这才让整口牙排整齐。
I had six wisdom teeth, which really impressed my oral surgeon, who said it was a one in a million mutation. One was so impacted that it snapped into pieces while he was cutting it.
长过六颗智齿，惊呆了我的外科医生，说是百万分之一的变异。有颗阻生齿太顽固，切割时直接碎成渣。
When I was 21, my dentist convinced me to have my wisdom teeth removed even though they weren't impacted. Later in life, because I am disabled and low income, I couldn't afford dental care and have lost all my upper molars. If I hadn't been convinced to have those teeth removed, I would at least have a couple of molars to chew with. In my experience, Income is a huge factor and dentistry should consider these issues before preemptively taking unnecessary and costly action.
21岁时被忽悠着拔了非阻生智齿。如今作为低收入残障人士，无力负担牙科治疗，上颌臼齿全掉光。如果当年留着智齿，至少还能用它们咀嚼。亲身经历证明：经济状况是重大影响因素，牙医不该轻易建议这类昂贵且不必要的手术。
I was born with 4 extra wisdom teeth. My surgery and recovery was an extremely painful experience for me and the doctor who had never seen that before.
天生多长四颗智齿，手术和恢复过程极其痛苦，连医生都说从没见过这种情况。
I had 2 wisdom teeth buds removed (uppers) when I was 12 prior to getting braces, because the dentist could see they were going to be impacted. Unfortunately, the ones that remained did end up being impacted and had to be removed by breaking and taking out pieces because the roots were entangled with the 2nd molars' roots. It was ugly, painful, and my cheap insurance company paid for Novocain but no other anesthesia. My dad still has 2 of his because of how complicated it would be to remove them.
12岁戴牙套前就拔了上颌两颗智齿牙胚（预测会阻生）。结果剩下的还是阻生了，最后只能敲碎拔除，因为牙根和第二臼齿纠缠不清。过程血腥痛苦，破保险只给报局麻费用。我爸到现在还留着两颗智齿，因为拔除难度太大。
I had wisdom teeth but one of them cracked and got pulled. Then when I got a new dentist, he opted to have the rest pulled after another decided to become impacted.
原本留着智齿，结果一颗开裂被拔。后来换新牙医，另一颗开始阻生，干脆全拔了。
I'm 26 and only one of these bad boys seems to be doing anything at all. I hope he stays under my gums and stops growing.
26岁了，四颗智齿里只有一颗在搞事情。求求它安安分分待在牙龈里别长了。
My wisdom teeth extraction went without a hitch. I was wanting to do stuff later that day with friends.
拔智齿过程顺利到离谱，当天下午就计划和朋友出去浪。
原创翻译：龙腾网 https://www.ltaaa.cn 转载请注明出处
Been there, done that; got one out last year precisely because it was damaging the molar next to it.
去年刚经历：因为智齿损害邻牙，不得不拔除。
原创翻译：龙腾网 https://www.ltaaa.cn 转载请注明出处
I knew someone with a large jaw and he told me he had so much room he didn’t need to have his wisdom teeth removed.
认识个下颚宽大的朋友，人家智齿长得舒舒服服，根本不用拔。
I only had 3, and one was impacted so the common procedure in Canada is to remove all when one is needing removal. Removing the two that weren’t impacted noticeably altered my face symmetry. I would caution others against getting unnecessary surgeries unless there is significant cost savings (in this case there wasn’t and I wish I would’ve said no to the other two teeth that were chillin)
加拿大常规做法是只要拔一颗阻生齿，就得把其他全拔了。我三颗智齿中一颗阻生，结果拔完两颗非阻生的后，脸型明显不对称。现在想来，除非能省大钱，否则真不该做这种不必要的手术。
原创翻译：龙腾网 https://www.ltaaa.cn 转载请注明出处
yikes, just realized by looking at your video I am missing A LOT of teeth, and have no memory of this at all, definitely no wisdom teeth. Thank-you for this information. ( thank goodness i have the front ones ) ;)
天！看视频才发现自己缺了好多牙，但完全没印象掉过，肯定没长过智齿。感谢科普（幸好门牙还在嘿嘿）。
原创翻译：龙腾网 https://www.ltaaa.cn 转载请注明出处
I remember getting mine removed all at the same time. And getting my gums separated from my jaw in the same surgery so I wouldn't "need" to wear my retainer anymore. Then I heard a week later they don't do that surgery anymore due to it being too barbaric
记得当年一次性拔光智齿，还顺带做了牙龈颌骨分离术（说是能免戴保持器）。结果一周后听说这手术因过于野蛮被禁了。
i lost a molar as a tween so there was plenty of room for one of them to grow out. the other 3 have never bothered me
十几岁时掉过臼齿，腾出空间让一颗智齿顺利长出。剩下三颗至今没闹过妖。
When I was 19 I went to my regular dentist complaining of jaw and tooth pain...
19岁向常去的牙医抱怨牙疼，他懒得拍片直接诊断夜磨牙，推销300美元护齿套。我拒绝后转诊正畸医生，结果X光显示三颗埋伏智齿！果断换诊所，最后拔了四颗前臼齿、三颗智齿，还切了舌系带（小时候牙医说靠语言治疗能拉长，根本没用）。
Both my wisdom came out impacted and caused decay to the next tooth on both sides
两颗阻生智齿把邻牙都顶蛀了。
I guess I'm weird. When I got mine taken out, I had barely any pain, and was back to regular food in a few days. In fact, I road a bicycle home from the dentist's office (about a mile).
可能我体质特殊：拔完智齿几乎不疼，几天就正常吃饭，甚至骑了1.6公里自行车回家。
I have all four. Came in all at once, perfectly at the age of 16. 50 years later I may have them pulled due to cavities, been hard to keep them clean all the way back there!
四颗16岁就整齐萌出，但50年后的现在可能得拔——位置太靠后清洁困难，全蛀了。