CBCT 对与牙髓通路洞准备相关的结果的影响:使用 3D 打印上颌第一磨牙进行的对照人体模拟研究。

IF 2.9 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Dento maxillo facial radiology Pub Date : 2024-09-25 DOI:10.1093/dmfr/twae048
Margarete B McGuigan, Henry F Duncan, Gabriel Krastl, Julia Ludwig, Bahman Honari, Keith Horner
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引用次数: 0

摘要

目的:方法:18 名具有三种经验水平的操作者参加了两次模拟临床会诊,一次有 CBCT 成像,一次没有 CBCT 成像,顺序随机,中间有 8 周的冲洗期。操作员在三个定制的 M1M(两个非复杂和一个复杂中颊面管解剖)中尝试定位所有四个根管。主要结果是拔除的牙齿体积。次要结果是线性牙洞尺寸、找到的根管和手术时间。记录了操作者的信心和可用成像的 "有用性"。数据统计分析包括:配对 t 检验、Fishers 精确检验、线性混合效应模型和 Mann-Whitney U 检验,所有检验的α水平均为 .05:结果:当术前有 CBCT 补充资料时,入路腔的体积和手术时间明显减少,中颊面-2(MB2)管位置明显增加,但仅限于解剖结构不复杂的牙齿和经验更丰富的操作者。线性混合效应建模确定了图像类型和操作者经验对拔牙量和手术时间有显著的预测作用。与使用 CBCT 时相比,仅使用传统成像时,对牙槽骨位置的信心和感知到的 "帮助"(所有经验组)都明显较低:补充性术前 CBCT 对入路腔准备有一些有益的影响,尽管这只适用于解剖结构不复杂的牙齿和经验更丰富的操作者。
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The impact of CBCT on outcomes associated with endodontic access cavity preparation: a controlled human analogue study using 3D printed first maxillary molars.

Objectives: To identify if supplemental preoperative CBCT imaging could improve outcomes related to endodontic access cavity preparation, using 3D-printed maxillary first molars (M1Ms) in a rigorously simulated, controlled human analogue study.

Methods: 18 operators with three experience-levels took part in two simulated clinical sessions, one with and one without the availability of CBCT imaging, in a randomised order and with an intervening 8-week washout period. Operators attempted location of all four root canals in each of three custom-made M1Ms (two non-complex and one complex mesiobuccal canal anatomy). Primary outcome was tooth volume removed. Secondary outcomes were linear cavity dimensions, canals located, and procedural time. Operator confidence and 'helpfulness' of available imaging were recorded. Statistical analysis of data included: paired t-tests, Fishers Exact test, linear mixed effect modelling and Mann-Whitney U test, with an alpha level of .05 for all.

Results: When supplemental preoperative CBCT was available, there were significant reductions in volume of the access cavity and procedural times, with significantly increased mesiobuccal-2 (MB2) canal location, but only for teeth with non-complex anatomies and for more experienced operators. Linear mixed-effect modelling identified image type and operator experience as significant predictors of tooth volume removed and procedural time. There was significantly lower confidence in canal location and perceived 'helpfulness" (all experience groups) when conventional imaging only was used compared with when CBCT was available.

Conclusions: Supplemental preoperative CBCT had several beneficial impacts on access cavity preparation, although this only applied to teeth with non-complex anatomy and for more experienced operators.

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来源期刊
CiteScore
5.60
自引率
9.10%
发文量
65
审稿时长
4-8 weeks
期刊介绍: Dentomaxillofacial Radiology (DMFR) is the journal of the International Association of Dentomaxillofacial Radiology (IADMFR) and covers the closely related fields of oral radiology and head and neck imaging. Established in 1972, DMFR is a key resource keeping dentists, radiologists and clinicians and scientists with an interest in Head and Neck imaging abreast of important research and developments in oral and maxillofacial radiology. The DMFR editorial board features a panel of international experts including Editor-in-Chief Professor Ralf Schulze. Our editorial board provide their expertise and guidance in shaping the content and direction of the journal. Quick Facts: - 2015 Impact Factor - 1.919 - Receipt to first decision - average of 3 weeks - Acceptance to online publication - average of 3 weeks - Open access option - ISSN: 0250-832X - eISSN: 1476-542X
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