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American Journal of Orthodontics and Dentofacial Orthopedics最新文献

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Patient-provider communication during consultations for elective dental procedures: A scoping review 牙科择期手术咨询过程中患者与医疗服务提供者之间的沟通:范围综述。
IF 2.7 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-11-01 DOI: 10.1016/j.ajodo.2024.07.014
Codey Pilgrim, Raisa Catunda, Paul Major, Arnaldo Perez-Garcia, Carlos Flores-Mir

Introduction

Patient-provider communication (PPC) is a critical component of patient-centered care. Original studies have examined specific factors related to PPC during consultations for elective dental procedures, but this evidence has yet to be comprehensively summarized. This scoping review aimed to understand better the extent and depth of the available literature regarding factors that influence PPC during consultations for elective dental procedures.

Methods

The authors considered electronically available, English-language, original research published since 1990 assessing communication during consultations for elective dental procedures. Four electronic databases, Google Scholar, and reference lists of inclusions were searched until August 2023. No quality assessment was completed. Two independent researchers assessed article eligibility. Data were charted with a narrative review approach.

Results

A total of 37 studies were included. The most popular discipline studied was orthodontics. Prospective cohorts and cross-sectional were the most common study designs. Information recall, patient satisfaction, and patient comprehension were the most common outcome measures. Most studies employed questionnaires, surveys, or interviews for data collection. Nineteen factors related to PPC during elective dental consultations were identified and categorized into information delivery (4), patient-related (9), and provider-related factors (6).

Conclusions

This scoping review is the first to present a list of evidence-supported factors related to PPC in elective dental consultations. Identifying these factors is an important first step to better understanding their influence on PPC and designing interventions targeting those that may be modifiable. PPC during elective dental consultations is a dynamic, ongoing process. Several recommendations emerged that may help improve PPC, including appropriate information delivery, patient engagement, providing adequate time, and educating ourselves on approaches to PPC.
简介患者-提供者沟通(PPC)是以患者为中心的医疗服务的重要组成部分。最初的研究已经对选择性牙科手术咨询过程中与患者-提供者沟通有关的具体因素进行了研究,但这些证据尚未得到全面总结。本范围综述旨在更好地了解现有文献中关于影响择期牙科手术会诊期间PPC的因素的广度和深度:作者研究了自 1990 年以来发表的评估牙科择期手术会诊过程中沟通情况的电子版英文原创研究。作者检索了四个电子数据库、谷歌学术(Google Scholar)和参考文献列表,直至 2023 年 8 月。未完成质量评估。两名独立研究人员对文章的资格进行了评估。结果:共纳入 37 项研究:共纳入 37 项研究。研究最多的学科是口腔正畸。前瞻性队列和横断面是最常见的研究设计。信息回忆、患者满意度和患者理解力是最常见的结果测量指标。大多数研究采用问卷、调查或访谈的方式收集数据。研究发现了19个与牙科择期会诊中的PPC相关的因素,并将其分为信息传递因素(4个)、患者相关因素(9个)和提供者相关因素(6个):本范围界定综述首次提出了一份有证据支持的与牙科择期会诊中 PPC 相关的因素清单。确定这些因素是重要的第一步,有助于更好地理解它们对PPC的影响,并针对那些可能可以改变的因素设计干预措施。牙科择期会诊中的PPC是一个动态、持续的过程。我们提出了一些有助于改善 PPC 的建议,包括适当的信息传递、患者参与、提供充足的时间以及对我们进行 PPC 方法的教育。
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引用次数: 0
Short- and long-term effects of conventional and miniscrew-assisted rapid palatal expansion on hard tissues using voxel-based superimposition of serial cone-beam computed tomography scans 利用基于体素的连续锥形束计算机断层扫描叠加法,研究传统和微型螺刀辅助快速腭部扩张术对硬组织的短期和长期影响。
IF 2.7 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-11-01 DOI: 10.1016/j.ajodo.2024.06.017
Isaac Empson , Marinho Del Santo Jr. , Chia-Ling Kuo , Manuel Lagravere Vich , Dawei Liu , Sumit Yadav , Shivam Mehta

Introduction

The objective of this study was to evaluate the short-term and long-term hard-tissue changes with miniscrew-assisted rapid palatal expansion (MARPE) and rapid palatal expansion (RPE) compared with a matched control group with voxel-based superimposition using 3-dimensional cone-beam computed tomography (CBCT) scans.

Methods

A total of 180 CBCT scans were analyzed for 60 patients with a mean age of 13.9 years at 3 time points: pretreatment (T1), postexpansion (T2), and posttreatment (T3). Patients were divided into 3 groups: MARPE, RPE, and controls. Voxel-based superimposition was performed for CBCTs from T1 to T2 and T1 to T3 using the anterior cranial base as a reference. The hard-tissue surfaces were extracted after the superimposition procedure. Nine landmarks were analyzed: nasion, A-point, pogonion, left and right alar bases, zygoma, and gonion. Within-group changes were analyzed using linear mixed-effects models, including a random intercept per subject and the mixed effect of time (T1, T2, or T3) with test P values adjusted for multiple testing using Tukey’s method. Between-group changes were analyzed using linear mixed-effects models, including a random intercept per subject and the mixed effects of time, group, and group × time interaction with P values adjusted for multiple testing using the Benjamin-Hochberg false discovery rate method.

Results

In the short term, both MARPE and RPE led to a significant downward movement of the right gonion and lateral movement of the right alar base compared with controls at T2 (P <0.05). In addition, MARPE led to a significant downward movement of pogonion and left gonion. RPE led to a significant downward movement of the A-point and lateral movement of the left alar base compared with controls at T2 (P <0.05). However, in the long-term, no changes were observed between the groups at T3.

Conclusions

There were significant differences in pogonion, alar base, and gonion between MARPE, RPE, and control groups in the short term. However, all the hard-tissue changes were transient, as there were no differences between the 3 groups in the long term.
简介本研究的目的是利用三维锥束计算机断层扫描(CBCT),通过基于体素的叠加,评估微型螺钉辅助快速腭部扩张术(MARPE)和快速腭部扩张术(RPE)与匹配对照组相比的短期和长期硬组织变化:对 60 名平均年龄为 13.9 岁的患者在三个时间点(治疗前(T1)、扩张后(T2)和治疗后(T3))的共 180 张 CBCT 扫描图像进行了分析。患者被分为 3 组:MARPE组、RPE组和对照组。以颅前基底为参考,对 T1 至 T2 和 T1 至 T3 的 CBCT 图像进行基于体素的叠加。叠加后提取硬组织表面。对九个地标进行了分析:鼻翼、A点、鼻骨、左右耳根、颧骨和鼻小柱。使用线性混合效应模型分析组内变化,包括每个受试者的随机截距和时间(T1、T2 或 T3)的混合效应,测试 P 值使用 Tukey's 方法进行多重测试调整。组间变化采用线性混合效应模型进行分析,包括每个受试者的随机截距以及时间、组别和组别 × 时间交互作用的混合效应,检验 P 值采用本杰明-霍赫伯格假发现率法进行多重检验调整:在短期内,与对照组相比,MARPE 和 RPE 在 T2 阶段都会导致右侧耳廓显著向下移动和右侧耳廓基底显著向外侧移动(P 结论:与对照组相比,MARPE 和 RPE 在 T2 阶段都会导致右侧耳廓显著向下移动和右侧耳廓基底显著向外侧移动:在短期内,MARPE 组、RPE 组和对照组之间在咽鼓管、咽鼓管基底和咽鼓管方面存在明显差异。然而,所有的硬组织变化都是短暂的,因为三组之间在长期上没有差异。
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引用次数: 0
Status 状态
IF 2.7 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-11-01 DOI: 10.1016/j.ajodo.2024.08.002
Laurance Jerrold
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引用次数: 0
Directory: AAO Officers and Organizations 目录:AAO 官员和组织
IF 2.7 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-11-01 DOI: 10.1016/S0889-5406(24)00415-3
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引用次数: 0
November 2024 Continuing Education 2024 年 11 月 继续教育
IF 2.7 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-11-01 DOI: 10.1016/j.ajodo.2024.09.004
Dr Allen H. Moffitt (CE Editor)
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引用次数: 0
Accountability counts 问责制至关重要。
IF 2.7 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-11-01 DOI: 10.1016/j.ajodo.2024.08.001
Peter M. Greco
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引用次数: 0
Analysis of predicted and achieved root angulation changes in teeth adjacent to maxillary premolar extraction sites in patients treated with the Invisalign appliance 分析使用隐适美(Invisalign)矫正器治疗的患者上颌前磨牙拔除点邻近牙齿的预测和实现的牙根角度变化。
IF 2.7 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-11-01 DOI: 10.1016/j.ajodo.2024.06.014
Abirami Thilagalavanian, Tony Weir, Maurice J. Meade

Introduction

This study aimed to investigate the expression of root angulation in canine, premolar, and first molar teeth adjacent to first and second premolar extraction sites in the maxilla after treatment with an initial series of Invisalign aligners (Align Technology, Santa Clara, Calif).

Methods

Adult patients (aged ≥18 years) with at least 1 first and/or second premolar extraction in the maxilla and satisfying strict selection criteria were evaluated. Digital models representing pretreatment, predicted, and posttreatment were obtained from Align Technology’s digital interface, ClinCheck. The Geomagic Control X (version 2017.0.3; 3D systems, Rock Hill, NC) software facility was used to determine and compare the root angulation of adjacent canine, premolar, and first molar teeth at different time points.

Results

The predicted angulation of teeth was significantly different (P <0.02) than that achieved in most patients. When adjacent teeth roots were planned to tip away from the extraction site, there was an overexpression of the movement. When teeth roots were planned to tip into the extraction site, underexpression occurred, and movement was in the opposite direction in some instances. There was no difference in root angulation outcomes according to the prescribed number of aligners, 1- or 2-week wear protocols, and sex (P >0.05). Attachments were influential in controlling angulation in first-premolar extractions (P = 0.05), but optimized attachments were not any more effective than conventional attachments (P >0.05).

Conclusions

The achieved root angulation in teeth adjacent to premolar extraction sites in the maxilla after treatment with an initial series of Invisalign aligners differed significantly from that predicted. Attachments play a minor role in the predictability of root angulation outcomes.
简介:本研究旨在调查上颌第一和第二前磨牙拔除部位邻近的犬齿、前磨牙和第一磨牙在接受初始系列隐适美矫正器(Align Technology, Santa Clara, Calif)治疗后牙根成角的表现:方法:对至少有一颗上颌第一和/或第二前磨牙拔除并符合严格选择标准的成年患者(年龄≥18 岁)进行评估。从 Align Technology 公司的数字界面 ClinCheck 获取代表治疗前、预测和治疗后的数字模型。使用 Geomagic Control X(2017.0.3 版;3D systems,Rock Hill,NC)软件设施确定并比较不同时间点相邻犬齿、前磨牙和第一磨牙的牙根角度:结果:预测的牙齿角度有显著差异(P 0.05)。附着体对控制第一前磨牙拔除的角度有影响(P = 0.05),但优化附着体并不比传统附着体更有效(P >0.05):结论:上颌前磨牙拔除点邻近牙齿在使用初始系列隐形矫治器治疗后,达到的牙根角度与预测值有显著差异。附着体在预测牙根角度结果中的作用较小。
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引用次数: 0
Long-term survival of 57 premolars consecutively transplanted to premolar sites 连续移植到前臼齿部位的 57 颗前臼齿的长期存活率。
IF 2.7 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-11-01 DOI: 10.1016/j.ajodo.2024.07.003
Teitur Jonsson , Hafdis B. Jonsdottir , Thor Aspelund , Asgeir Sigurdsson , Thorarinn J. Sigurdsson

Introduction

The objective of this study was to report the long-term outcome of autotransplantation of premolars to other premolar recipient sites.

Methods

The sample was limited to adolescents seeking orthodontic treatment, and all had 1 or 2 premolars transplanted to a recipient site in which a premolar was congenitally missing. The transplantations were performed between 1980 and 2008, comprising 29 premolars in 22 males and 28 premolars in 22 females. Systematic clinical and radiographic follow-up varied from 1 year to 36.8 years, with a mean observation time of 18.9 years and a median of 19.2 years. Of the 57 transplanted teeth, 52 were subjected to orthodontic forces.

Results

A total of 9 of 57 teeth (15.8%) were lost during the observation period, and 8 of 9 lost teeth had been functional for at least 9 years posttransplantation. Of the 48 surviving transplants, 6 did not meet the criteria for success, giving an overall success rate of 73.7%. Complications were diagnosed within 5 years from the transplantation in 4 of 57 teeth (7.0%) and later in 11 of 57 (19.3%). The Kaplan-Meier survival curve shows that the complication-free proportion of transplants decreased at a constant rate over the observation time. The average survival time, taking censoring into account during follow-up of 36.8 years, was estimated as 28.5 years. The complications in the 15 teeth were classified into 4 categories: periapical lesions (6 teeth), inflammatory resorption (5 teeth), abrupt fracture (2 teeth), and ankylosis (2 teeth).

Conclusions

Overall, premolar transplants in all stages of root formation have high success and survival rates. Transplants with complications may survive temporarily and preserve critical arch space and alveolar bone. Transplants with normal healing may have latent weaknesses that can eventually affect long-term survival.
导言本研究旨在报告将前磨牙自体移植到其他前磨牙受体部位的长期效果:样本仅限于寻求正畸治疗的青少年,所有患者都有1或2颗前磨牙被移植到先天缺失前磨牙的受体部位。移植手术在1980年至2008年间进行,其中22名男性移植了29颗前磨牙,22名女性移植了28颗前磨牙。系统的临床和放射学随访时间从 1 年到 36.8 年不等,平均观察时间为 18.9 年,中位数为 19.2 年。在 57 颗移植牙齿中,52 颗接受了正畸:结果:57颗牙齿中,共有9颗(15.8%)在观察期间脱落,9颗脱落的牙齿中有8颗在移植后至少9年仍能正常使用。在48颗存活的移植牙齿中,有6颗不符合成功标准,总成功率为73.7%。57 颗牙齿中有 4 颗(7.0%)在移植后 5 年内被诊断出并发症,57 颗牙齿中有 11 颗(19.3%)在移植后 5 年内被诊断出并发症。卡普兰-米尔生存曲线显示,无并发症的移植比例在观察期内以恒定的速度下降。考虑到随访 36.8 年期间的普查因素,平均存活时间估计为 28.5 年。15颗牙齿的并发症分为4类:根尖周病变(6颗)、炎性吸收(5颗)、突然骨折(2颗)和强直(2颗):总的来说,在牙根形成的各个阶段,前磨牙移植的成功率和存活率都很高。有并发症的移植牙可以暂时存活,并保留关键的牙弓空间和牙槽骨。正常愈合的移植牙可能存在潜在的弱点,最终会影响长期存活。
{"title":"Long-term survival of 57 premolars consecutively transplanted to premolar sites","authors":"Teitur Jonsson ,&nbsp;Hafdis B. Jonsdottir ,&nbsp;Thor Aspelund ,&nbsp;Asgeir Sigurdsson ,&nbsp;Thorarinn J. Sigurdsson","doi":"10.1016/j.ajodo.2024.07.003","DOIUrl":"10.1016/j.ajodo.2024.07.003","url":null,"abstract":"<div><h3>Introduction</h3><div>The objective of this study was to report the long-term outcome of autotransplantation of premolars to other premolar recipient sites.</div></div><div><h3>Methods</h3><div>The sample was limited to adolescents seeking orthodontic treatment, and all had 1 or 2 premolars transplanted to a recipient site in which a premolar was congenitally missing. The transplantations were performed between 1980 and 2008, comprising 29 premolars in 22 males and 28 premolars in 22 females. Systematic clinical and radiographic follow-up varied from 1 year to 36.8 years, with a mean observation time of 18.9 years and a median of 19.2 years. Of the 57 transplanted teeth, 52 were subjected to orthodontic forces.</div></div><div><h3>Results</h3><div>A total of 9 of 57 teeth (15.8%) were lost during the observation period, and 8 of 9 lost teeth had been functional for at least 9 years posttransplantation. Of the 48 surviving transplants, 6 did not meet the criteria for success, giving an overall success rate of 73.7%. Complications were diagnosed within 5 years from the transplantation in 4 of 57 teeth (7.0%) and later in 11 of 57 (19.3%). The Kaplan-Meier survival curve shows that the complication-free proportion of transplants decreased at a constant rate over the observation time. The average survival time, taking censoring into account during follow-up of 36.8 years, was estimated as 28.5 years. The complications in the 15 teeth were classified into 4 categories: periapical lesions (6 teeth), inflammatory resorption (5 teeth), abrupt fracture (2 teeth), and ankylosis (2 teeth).</div></div><div><h3>Conclusions</h3><div>Overall, premolar transplants in all stages of root formation have high success and survival rates. Transplants with complications may survive temporarily and preserve critical arch space and alveolar bone. Transplants with normal healing may have latent weaknesses that can eventually affect long-term survival.</div></div>","PeriodicalId":50806,"journal":{"name":"American Journal of Orthodontics and Dentofacial Orthopedics","volume":"166 5","pages":"Pages 480-489.e3"},"PeriodicalIF":2.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141876640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mesiodistal tip expression of mandibular anterior teeth in patients with mandibular incisor extraction treated with Invisalign aligners 使用隐适美矫正器治疗下颌切牙拔除患者的下颌前牙牙周尖表现。
IF 2.7 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-10-21 DOI: 10.1016/j.ajodo.2024.07.016
Laura Truong , Tony Weir , Hien Nguyen , Elissa Freer , Desmond Ong

Introduction

Extraction of a single mandibular incisor may be prescribed in conjunction with clear aligner orthodontic treatment. The accuracy of therapeutic mesiodistal tooth positioning for the remaining mandibular anterior teeth for such patients has not been comprehensively evaluated. This retrospective study compared the predicted and achieved mesiodistal tooth movements in the mandibular anterior region for patients treated with Invisalign (Align Technology, Santa Clara, Calif), along with the influence of aligner attachments and the frequency of aligner change.

Methods

A sample of 83 subjects who had undergone Invisalign treatment with a single mandibular incisor extraction was collected from an existing database. The pretreatment tooth positions, the predicted mesiodistal tooth movement, and the achieved outcomes were measured for the remaining mandibular anterior teeth using Geomagic Control X metrology software (3D Systems, Rock Hill, SC). The predicted and achieved mesiodistal tip movements were analyzed and compared.

Results

Regression analysis revealed significant differences (P <0.001) between the predicted and achieved mesiodistal tooth positioning for incisors and canines. For every degree of predicted incisor mesiodistal tip, 78.89% of this tip was achieved (R2 = 0.4901). For every degree of predicted canine tip, 54.16% was clinically expressed (R2 = 0.5965). The accuracy of mesiodistal tip expression was not significantly affected by the prescribed number of aligners, 1-week vs 2-week aligner change protocols, or the presence of attachments (P >0.05). In addition, incisors were less likely to express the correct direction of the mesiodistal tip predicted than canines (P = 0.020).

Conclusions

A shortfall between the predicted and clinically achieved expression of mesiodistal tooth movement with Invisalign was found for the anterior teeth after a mandibular incisor extraction. The number of aligners, duration of aligner wear, and specific attachment designs were not found to significantly influence the accuracy of the achieved mesiodistal tip movements.
简介拔除单颗下颌切牙可与透明对齐矫正治疗同时进行。对于此类患者剩余下颌前牙的治疗性中隔牙齿定位的准确性还没有进行过全面评估。这项回顾性研究比较了使用隐适美(Align Technology, Santa Clara, Calif)矫治器治疗的患者下颌前牙牙间隙移动的预测值和实现值,以及矫治器附件和矫治器更换频率的影响:从现有数据库中收集了 83 名接受过隐适美的治疗并拔除了单颗下颌切牙的受试者样本。使用 Geomagic Control X 计量软件(3D Systems,Rock Hill,SC)测量了剩余下颌前牙的治疗前牙齿位置、预测的牙间移动和达到的效果。结果:结果:回归分析显示差异显著(P 2 = 0.4901)。预测的犬齿尖每移动一度,就有 54.16% 的临床表现(R2 = 0.5965)。矫治器的规定数量、1周与2周的矫治器更换方案或附着物的存在对中鼻尖表达的准确性没有明显影响(P>0.05)。此外,门牙比犬齿更不可能表达出预测的正确牙间尖方向(P = 0.020):结论:下颌切牙拔除后的前牙在使用隐适美矫治器进行中轴牙移动时,其预测值与临床表现之间存在差距。矫治器的数量、矫治器的佩戴时间以及特定的附着体设计都不会对所实现的牙间尖移动的准确性产生显著影响。
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引用次数: 0
Potential for bracket bonding errors based on tray accuracy and fit: Evaluation of 6 photopolymer resins for indirect bonding trays 基于托盘精度和配合度的托架粘接误差可能性:评估用于间接粘接托盘的 6 种感光树脂。
IF 2.7 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-10-10 DOI: 10.1016/j.ajodo.2024.08.005
Eugine Yim , Jing Liu , Sung-Hwan Choi , Chooryung J. Chung , Kee-Joon Lee , Sang-Bae Lee , Ki Beom Kim , Jung-Yul Cha

Introduction

We assessed the accuracy and fit of 3-dimensional (3D)-printed indirect bonding (IDB) trays fabricated using various photopolymer resin materials.

Methods

A maxillary plaster model and 60 plaster replicas were created. IDB trays with arbitrary bracket configurations were 3D-printed using 3 hard resins (Amber [AB], TC85DAC [TC], Orthoflex [OF]) and 3 soft resins (IBT [IT], IDB2 [ID], and MED625FLX [MD]). A reference plaster model with a computer-aided design-designed IDB tray attached with nonfunctional, arbitrary bracket configurations on the buccal surface serving as reference points for measurement was superimposed on scanned plaster replicas holding 3D-printed trays to assess transfer accuracy and clinically acceptable error. Printing accuracy was assessed by comparing computer-aided design trays to printed trays, and tray fit was measured by the gap volume between the tray and plaster replica using a Fit-Checker (GC Corp, Tokyo, Japan).

Results

Six tray groups showed significant linear transfer errors, particularly in the vertical direction (0.15 mm [95% confidence interval {CI}, 0.10-1.15]; P = 0.004). The OF group exhibited the largest vertical error (0.27 mm [95% CI, 0.19-0.35]), whereas the ID group had the smallest (0.10 mm [95% CI, 0.06-0.14]). Angular errors did not exhibit significant differences across the groups. Linear precision error was the highest in OF, followed by ID, TC, and MD, then AB and IT (P <0.001). Of all tray groups, 90.1% and 68.8% met the clinically acceptable linear (<0.25 mm) and angular errors (1°).

Conclusions

Linear errors, particularly vertical errors, are more material-dependent than angular errors. Gap volume alone was not a reliable predictor of IDB tray accuracy. Therefore, material-specific designs are needed to control the optimal fit and facilitate precise bracket placement.
简介:我们评估了使用各种光聚合物树脂材料制作的三维(3D)打印间接粘接(IDB)牙托的准确性和密合性:我们评估了使用各种光聚合物树脂材料制作的三维(3D)打印间接粘接(IDB)托盘的准确性和密合性:方法:制作一个上颌石膏模型和60个石膏复制品。使用 3 种硬质树脂(Amber [AB]、TC85DAC [TC]、Orthoflex [OF])和 3 种软质树脂(IBT [IT]、IDB2 [ID] 和 MED625FLX [MD])三维打印了具有任意托槽配置的 IDB 托盘。将计算机辅助设计的 IDB 托盘的参考石膏模型与颊面的非功能性任意托槽配置作为测量参考点,叠加在扫描的石膏复制品上,托盘为 3D 打印,以评估转移准确性和临床可接受误差。通过比较计算机辅助设计的托盘和打印的托盘来评估打印的准确性,并使用 Fit-Checker (GC 公司,日本东京)通过托盘和石膏复制品之间的间隙体积来测量托盘的密合度:六组托盘显示出明显的线性转移误差,尤其是在垂直方向(0.15 毫米[95% 置信区间{CI},0.10-1.15];P = 0.004)。OF 组的垂直误差最大(0.27 毫米[95% 置信区间,0.19-0.35]),而 ID 组最小(0.10 毫米[95% 置信区间,0.06-0.14])。各组之间的角度误差没有明显差异。线性精度误差在 OF 组最大,其次是 ID、TC 和 MD,然后是 AB 和 IT(P 结论):线性误差,尤其是垂直误差,比角度误差更依赖于材料。间隙体积本身并不能可靠地预测 IDB 托盘的精度。因此,需要针对特定材料进行设计,以控制最佳密合度,促进托槽的精确放置。
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引用次数: 0
期刊
American Journal of Orthodontics and Dentofacial Orthopedics
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