1
practice dentistry
dentistry 为不可数名词，搭配 practice 表示“从事牙科工作”，不加冠词。
She wants to practice dentistry in a rural clinic.
她想在农村诊所从事牙科工作。
牙科学；牙科
dentistries — plural of dentistry
先理解核心含义，再看它在真实句子里的用法。
牙科学；牙科
the branch of medicine that deals with the structure, development, and diseases of the teeth
She wants to practice dentistry in a rural clinic.
她想在农村诊所从事牙科工作。
研究、诊断和治疗牙齿及口腔疾病的医学领域。
The field of medicine concerned with the study, diagnosis, and treatment of conditions of the teeth and oral cavity.
研究牙齿解剖、发育及疾病的医学分支
the branch of medicine dealing with the anatomy and development and diseases of the teeth
对牙齿及邻近区域进行的手术,如钻孔、填充龋洞、安装牙冠和牙桥。
Operations performed on teeth and adjoining areas such as drilling, filling cavities, and placing crowns and bridges.
牙科手术,对牙齿的手术。
A dental surgery, an operation on the teeth.
She decided to study dentistry at university because she wanted to help people with their teeth.
她决定在大学学习牙科，因为她想帮助人们护理牙齿。
Modern dentistry has made tooth extraction much less painful than it used to be.
现代牙科学使拔牙比以前痛苦少得多。
He has practiced dentistry in this small town for over twenty years.
他在这座小镇从事牙科诊疗已超过二十年。
dentistry 为不可数名词，搭配 practice 表示“从事牙科工作”，不加冠词。
She wants to practice dentistry in a rural clinic.
她想在农村诊所从事牙科工作。
study 后直接接学科名词，dentistry 前不加 the。
He is studying dentistry at the university.
他在大学学习牙科。
career 与 in + 学科搭配，in dentistry 为后置修饰语。
A career in dentistry offers both challenge and reward.
牙科职业生涯既有挑战也有回报。
advances 为复数名词，常接 in + 领域，表示“某领域的进展”。
Advances in dentistry have transformed patient care.
牙科领域的进步改变了患者护理。
Not this
She wants to study dentist.
Use this
She wants to study dentistry.
dentist 指“牙医”（人），而 dentistry 指“牙科学”（学科）；动词 study 后接学科领域，不接代表职业的人。
Not this
He chose a dentistry as his major.
Use this
He chose dentistry as his major.
dentistry 表示“牙科学”时是不可数名词，不能用不定冠词 a 修饰，也不加冠词。
Not this
I am studying at dentistry school.
Use this
I am studying at dental school.
修饰 school 表示“牙科的”应用形容词 dental；dentistry 是名词，通常不作前置定语。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
美容牙科
She opened a clinic specializing in cosmetic dentistry.
她开了一家专门从事美容牙科的诊所。
预防牙科
Regular checkups are an important part of preventive dentistry.
定期检查是预防牙科的重要组成部分。
修复牙科
Restorative dentistry includes fillings, crowns, and bridges.
修复牙科包括补牙、牙冠和牙桥。
儿童牙科
Pediatric dentistry focuses on children's oral health.
儿童牙科专注于儿童的口腔健康。
从事牙科工作
After graduating, he plans to practice dentistry in a rural town.
毕业后，他计划在一个小镇从事牙科工作。
Use dentistries naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记忆联想：牙医（dentist）在诊所里“try”（尝试）钻研牙齿，所以dentistry是牙科学。
语域：formal 常见场景：medical education、professional practice、career guidance 该词通常用于医学、学术或职业相关语境，比较正式；日常口语中相对少见，更常说 dental care 或去看牙医等表达。
这些词仅拼写或尾音相近，并非真正的韵词。Dentistry 读 /ˈdɛntəstri/，重读元音 /ɛ/，之后为 /ntəstri/；chemistry、ministry、registry、sophistry 虽都以 -istry 结尾，但重读元音及后续辅音不同，因此都不押韵。industry 的尾音也是 /stri/，但重读元音为 /ɪ/，也不押韵。请勿凭拼写将 -istry 一律读成 /ɪstri/。
Dictionary facts from ECDICT, WIKTIONARY.