空管用药与根管充填治疗儿童乳牙牙髓炎的疗效差异

目的:探究空管用药与根管充填治疗儿童乳牙牙髓炎的疗效差异。方法:选择某院于2016年~2018年收治的60例乳牙牙髓炎患儿,按照治疗方式不同将其分为观察组与对照组各30例。观察组患儿给予空管用药治疗手段,对照组患儿给予根管充填治疗,对比组间患儿治疗效果及治疗满意度。结果:观察组有效率为96.7%,对照组总有效率为70%,观察组治疗效果显著优于对照组,差异有统计学意义(P<0.05);观察组满意度为96.7%,对照组满意度为66.7%,观察组满意度明显高于对照组,差异有统计学意义(P<0.05)。结论:在儿童乳牙牙髓炎治疗过程中,空管用药治疗比根管充填治疗效果更为显著,能有效提升治疗满意度,同时操作相对简单,充分节省患儿与医师时间,值得临床推广与应用。     

Evaluation of volumetric changes of teeth in a Brazilian population by using cone beam computed tomography

The purpose of this study was to test the usefulness of some morphometric parameters of the teeth in 5 different age groups through images of Cone Beam CT. 118 upper central incisors clinically acquired of 60 women and 58 men aged between 22 and 70 years were selected. The hard tissue volume and the pulp cavity volume of each tooth was obtained and computed by the software DentalSlice^® and the measures were assessed (pulp cavity volume, hard tissue volume, tooth volume and pulp cavity/tooth volume ratio). The pulp cavity volume and the pulp cavity/tooth volume ratio showed significant differences between age groups (p < 0.001). Linear regression analysis showed a coefficient of determination of 0.21 which suggests that there is a weak correlation between the pulp cavity/tooth volume ratio and age.     

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??Teeth fractures include crown fracture?? root fracture and crown-root fracture. If the tooth fragment is available?? it can be bonded to the tooth. In young patients with immature?? still developing teeth?? it is advantageous to preserve pulp vitality by pulp capping or partial pulpotomy. Also?? this treatment is the choice in young patients with completely formed teeth. If displaced?? reposition the coronal segment of the tooth as soon as possible. As an emergency treatment a temporary stabilization of the loose segment to adjacent teeth can be performed. Sequential therapy for traumatized teeth with mid-root fracture or cervical third fracture or crown-root fracture could preserve the coronal fragment.     

Increasing atrial fibrillation: What is the cause?

A 72‐year‐old woman with a history of paroxysmal atrial fibrillation (AF) and sinus node dysfunction is seen in clinic for routine follow‐up.