Abstract：
Purpose: To evaluate the preferences of dental practitioners for tooth-supported crowns dental ceramics by means of an online survey and to assess the influence of age, gender, years of experience, and dental specialty on those preferences. Materials and Methods: An anonymous questionnaire was delivered online through Google Surveys, targeting 796 dentists. It contained 17 dichotomous, closed questions with two sections. The first section dealt with general characteristics, including age, gender, years of experience, training in prosthodontics, and hours worked per week. The second section included questions regarding preferences of different materials for crowns, and the use of digital workflows. Analyses were carried out with Stata 14.0 software (StataCorp, TX, USA). A significance level of p=0.05 was adopted. Results: 248 surveys were answered. Practitioners in Chile preferred lithium disilicate for the anterior region (55.2%) but also for the posterior area (40.7%), regardless of their age, gender, years since graduation, hours worked per week or any training in prosthodontics. Chilean dentists over 50 years old considered zirconia almost 4 times more than those under 30 years old for anterior crowns (51.85%). 59.68% of dentists take digital impressions, and 37.10% have access to chairside CAD/CAM technology. In this group, 54.4% preferred feldspathic ceramic for anterior and 23.9% for posterior crowns. Conclusions: While there is a wide range of dental ceramic materials, these results provide a snapshot of the current trends in Chile where lithium disilicate is the most preferred ceramic material for tooth-supported crowns, and metal-ceramic is the least preferred material.
摘要：
目的：通过在线调查评估牙科医生对牙齿支撑牙冠牙科陶瓷的偏好，并评估年龄的影响，性别,多年的经验,和牙科专业对这些偏好。材料和方法：通过谷歌调查在线提交了一份匿名问卷，针对796名牙医.它包含17个二分法，有两个部分的封闭问题。第一部分涉及一般特征，包括年龄,性别,多年的经验,口腔修复训练，每周工作时间。第二部分包括关于不同材料对牙冠的偏好的问题，以及数字工作流的使用。使用Stata14.0软件进行分析(StataCorp，TX,美国）。采用P=0.05的显著性水平。结果：共回答248项调查。智利的从业者首选焦硅酸锂用于前部区域（55.2％），但也用于后部区域（40.7％）。不管他们的年龄,性别,毕业多年来,每周工作小时数或任何口腔修复培训。50岁以上的智利牙医认为氧化锆比30岁以下的牙冠高出近4倍(51.85%)。59.68%的牙医接受数字印模，37.10%的人可以使用椅边CAD/CAM技术。在这个群体中,前冠首选长石陶瓷为54.4%，后冠首选23.9%。结论:虽然牙科陶瓷材料种类繁多,这些结果提供了智利当前趋势的快照，在智利，二硅酸锂是牙齿支撑牙冠最优选的陶瓷材料，和金属陶瓷是最不优选的材料。
