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
研究、诊断和治疗牙齿及口腔疾病的医学领域。；研究牙齿解剖、发育及疾病的医学分支；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。；牙科手术,对牙齿的手术。；牙科；[医] 牙科学
the branch of medicine that deals with the structure, development, and diseases of the teeth
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。
用法提示：dentistry 在此句中作 study 的宾语，表示“牙科”这一学科专业。
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。
用法提示：dentistry 在此句中作主语，指“牙科学”这一医学分支，为不可数名词。
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。
用法提示：dentistry 在此句中作 practiced 的宾语，表示“牙科医疗工作”这一职业活动。
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。
与常见说法“牙科”意思相近，通常用于学术或专业语境，侧重医学治疗；日常口语较少这样叫。
比“牙科/牙医学”更学术，多用于研究和法医学，不用于日常看病场景。
grammar · medium
易错句子She wants to study dentist.
正确表达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。
grammar · medium
易错句子He chose a dentistry as his major.
正确表达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。
grammar · medium
易错句子I am studying at dentistry school.
正确表达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。
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。
牙科主要处理牙齿的健康与疾病。
牙龈是支撑牙齿的组织，牙科常涉及牙龈问题。
龋洞是牙科常见疾病之一。
正畸学是牙科中矫正牙齿排列的分支。
牙医是从事牙科诊疗的专业人员。
Dictionary facts from ECDICT, WIKTIONARY.