A complete denture impression technique survey of postdoctoral prosthodontic programs in the United States.
A complete denture impression technique survey of postdoctoral prosthodontic programs in the United States.
复制标题
美国博士后修复项目的完整义齿印模技术调查。
DOI：
10.1111/jopr.12099
复制
发表时间：
2014
期刊：
影响因子：
--
通讯作者：
Robert W Berg
中科院分区：
文献类型：
--
作者：
Mamta Mehra;F. Vahidi;Robert W Berg
目的
本研究的目的是调查在美国的博士后口腔修复项目的项目主任关于他们的项目的全口义齿印模技术。该调查的主要目的是确定目前的趋势，在全口义齿印模制作，并确定哪些技术和材料是在美国的博士后口腔修复计划教。
材料和方法
一项在线调查被发送到美国博士后口腔修复项目的所有项目主任。调查包括两个部分：初步印象和最终印象。该调查包含22个问题，大约需要5分钟才能完成。在整个调查过程中，所有答复均保持匿名。
结果
调查的回复率为87%。大多数程序在制作初步印模之前没有单独对托盘进行边界成型（82%）。初步印模材料的选择是不可逆的水胶体（88%）。选择性压力是主要使用的印象哲学（80%）。所有程序的边界塑造了自定义托盘，95%的记录在部分边界。定制托盘边缘成型的材料选择是成型塑料印模化合物（71%）。最终印模最常用的印模材料是聚乙烯硅氧烷（PVS）（42%），第二常用的印模材料是聚硫化物（32%）。最常见的腭后封闭定位技术是口内标记并转移到最终印模上（65%）。大多数项目通常建议患者在最终印模制作前至少24小时内不要佩戴现有的假牙（83%）。
结论
根据本研究的结果，可以得出以下结论：（1）不可逆水胶体是最常用的初步印模材料，PVS是最常用的最终印模材料。(2)大多数程序都使用建模塑料印模化合物来制作定制托盘。(3)选择性压力是主要使用的印象哲学。(4)大多数程序对过度活动（松弛）组织进行了特殊考虑。(5)大多数项目通常建议患者在制作最终印模之前至少24小时内不要佩戴现有的假牙。
PURPOSE
The purpose of the study was to survey program directors of postdoctoral prosthodontic programs in the United States regarding their programs' complete denture impression techniques. The key objectives of the survey were to identify the current trends in complete denture impression making and to determine which techniques and materials are taught in US postdoctoral prosthodontic programs.
MATERIALS AND METHODS
An online survey was sent to all program directors of US postdoctoral prosthodontic programs. The survey comprised two sections: preliminary impressions and final impressions. The survey contained 22 questions that would take approximately 5 minutes to complete. All responses remained anonymous throughout the survey.
RESULTS
The response rate for the survey was 87%. A majority of the programs did not separately border mold the tray prior to making the preliminary impressions (82%). The impression material of choice for the preliminary impression was irreversible hydrocolloid (88%). Selective pressure was the predominantly used impression philosophy (80%). All programs border molded the custom tray, and 95% recorded the borders in sections. The material of choice for border molding the custom tray was modeling plastic impression compound (71%). The most commonly used impression material for the final impressions was polyvinylsiloxane (PVS) (42%), and the second most commonly used impression material was polysulphide (32%). The most common technique for locating the posterior palatal seal was marking intraorally and transferring onto the final impression (65%). Most programs routinely advised their patients not to wear their existing dentures for at least 24 hours before the final impressions were made (83%).
CONCLUSIONS
Based on the results of this study, the following conclusions can be drawn: (1) The most commonly used material for the preliminary impression was irreversible hydrocolloid and for the final impression was PVS. (2) Modeling plastic impression compound was used by most programs to border mold the custom trays. (3) Selective pressure was the predominantly used impression philosophy. (4) A majority of the programs made a special consideration for excessive movable (flabby) tissue. (5) Most programs routinely advised their patients to not wear their existing dentures for at least 24 hours before the final impressions were made.