pedodontics

pe.do.don.tics

n.(used with a sing. verb)（名词）（与单数动词连用）
The branch of dentistry that deals with the care and treatment of children`s teeth.
儿童牙科学：牙科的一个专门负责护理和治疗儿童牙齿的分支

【引伸】
pe.dodon.tist