Dental sealants can provide a further layer of protection against cavities . the plastic coating is painted on the grooved chewing surfaces of the back teeth 牙科封闭剂可以形成额外的保护层以抵御龋坏。方法是在后牙的窝沟表面涂布树脂覆盖料。
This case report described the treatment for a 23 year - old female class patient with mandibular asymmetry , uni - lateral posterior crossbite and severe crowding in both jaws 摘要本报告为一个23岁、安格氏第三分类咬合伴随?面不对称、单侧后牙错咬、上下牙弓严重拥挤的女患者。
This case report provided the non - retentive telescopic denture treatment for severe attritted dentition due to parafunctional habits of bruxism and loss of posterior teeth support 本病例讨论对于因磨牙与后牙丧失而造成之严重磨耗齿列，以双重冠义齿的治疗方式提高咬合高度并恢复齿列外观。
In may 2003 , a needle broke while a 31 - year - old man was undergoing local infiltrating anesthesia for extraction of tooth # 38 at a local dental office , and he was referred to our hospital for help 本病例为一31岁男性，在牙科诊所接受技牙手术时，牙医师施行下颚后牙区局部浸润性麻醉时发生针头断针，然后转介至本院接受治疗。
It has been proposed that the use of a ferrule as part of the core or artificial crown may be of benefit in reinforcing the endodontically treated teeth restored with post - and - core systems 桩核修复时,在残冠残根的断面设计箍结构,使其成为桩核或冠修复体的一部分,由此产生的箍效应可以增强修复后牙体组织的机械强度,从而受到越来越多的重视。
