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British journal of orthodontics最新文献

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An ex vivo investigation into the bond strength of orthodontic brackets and adhesive systems. 正畸托槽与黏附系统黏附强度的离体研究。
British journal of orthodontics
Pub Date : 1999-03-01 DOI: 10.1093/ortho/26.1.47
S Sunna, W P Rock

The aim of this study was to compare the shear bond strength of Adhesive Precoated Brackets (APC) with that of two types of uncoated bracket bases, Straight-Wire and Dyna-Lock. Two types of orthodontic adhesives were used, Transbond XT and Right-On. Three different curing times were evaluated with the APC brackets in order to find the best. Adhesive remnants on the enamel surface following debond were evaluated using the Adhesive Remnant Index (Artun and Bergland, 1984). Bond strengths ranged from 11.00 to 22.08 MPa. For both types of brackets Transbond produced a significant increase in bond strength compared to Right-On. The Dyna-Lock/Right-On combination produced the poorest results. APC brackets cured for 40 s had similar bond strengths to uncoated brackets fixed by means of Transbond. Overall, 79 per cent of specimens had less than half the tooth surface covered with adhesive following debond. Significantly more adhesive remained on tooth surfaces following debond of the Straight-Wire/Right-On group than any other bracket/adhesive combination. Bond strengths were higher with light-cured Transbond than with chemically-cured Right-On. When Transbond is used in association with APC brackets a 40-second cure time is recommended.

本研究的目的是比较粘接预涂层支架(APC)与两种未涂层支架(Straight-Wire和Dyna-Lock)的剪切结合强度。使用两种正畸粘接剂Transbond XT和Right-On。用APC支架对三种不同的固化时间进行了评价，以找到最佳的固化时间。用粘接剂残留指数(Artun and Bergland, 1984)评估脱粘后牙釉质表面的粘接剂残留。结合强度为11.00 ~ 22.08 MPa。对于这两种类型的托架，与Right-On相比，Transbond产生的结合强度显著增加。Dyna-Lock/Right-On组合产生的结果最差。固化40 s的APC支架与用Transbond方法固定的未涂层支架具有相似的结合强度。总的来说，79%的标本在脱粘后牙齿表面覆盖的粘接剂不到一半。与任何其他支架/粘合剂组合相比，直丝/Right-On组在脱粘后在牙齿表面保留的粘合剂明显更多。光固化Transbond的结合强度高于化学固化Right-On。当Transbond与APC支架一起使用时，建议固化时间为40秒。
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引用次数: 60
Study model boxes--what's available? 研究模型箱——有什么可用的?
British journal of orthodontics
Pub Date : 1999-03-01 DOI: 10.1093/ortho/26.1.59
N Huntley
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引用次数: 0
The incisal edge bracket for gold chain attachment to unerupted teeth. 用于连接未出牙的金链的内切边缘支架。
British journal of orthodontics
Pub Date : 1998-11-01 DOI: 10.1093/ortho/25.4.261
M Harrison, P Longhurst

A method is described to reduce the morbidity involved in direct bonding of unerupted incisors by use of a precontoured bracket. Increased bracket stability during placement is an additional advantage.

本文描述了一种方法，通过使用预轮廓支架来减少未出牙直接粘接所涉及的发病率。在放置过程中增加支架稳定性是另一个优点。
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引用次数: 0
Re: Early experiences with the Tip-Edge appliance. 回复:使用Tip-Edge设备的早期体验。
British journal of orthodontics
Pub Date : 1998-11-01 DOI: 10.1093/ortho/25.4.305
J Mew
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引用次数: 1
The benefits of marketing in orthodontics. 正畸学营销的好处。
British journal of orthodontics
Pub Date : 1998-11-01 DOI: 10.1093/ortho/25.4.322
N Delaney

This article gives an outline of marketing basics and how they could be used to best effect in the Orthodontic profession.

这篇文章给出了营销基础的大纲，以及他们如何在正畸专业中发挥最佳效果。
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引用次数: 5
A critical assessment of high-earning orthodontists in the General Dental Services of England and Wales (1990-91). Turbill et al. Vol. 25/1998/47-54. 对英格兰和威尔士普通牙科服务中高收入正畸医生的关键评估(1990-91)。Turbill等。25/1998/47-54卷。
British journal of orthodontics
Pub Date : 1998-11-01 DOI: 10.1093/ortho/25.4.304c
J D Muir
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引用次数: 0
Signal transduction. 信号转导。
British journal of orthodontics
Pub Date : 1998-11-01 DOI: 10.1093/ortho/25.4.269
J R Sandy

This review outlines some of the developments in intra cellular cell signalling. Details are presented on how growth factors stimulate cells to respond as well as interactions between extracellular matrix and cell adhesion molecules. The relevance of these activations to orthodontics offers scope for further research.

这篇综述概述了细胞内细胞信号传导的一些进展。详细介绍了生长因子如何刺激细胞反应以及细胞外基质和细胞粘附分子之间的相互作用。这些激活与正畸的相关性为进一步的研究提供了空间。
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引用次数: 0
Clinical performance of orthodontic brackets and adhesive systems: a randomized clinical trial. 正畸托槽和粘接剂系统的临床性能:一项随机临床试验。
British journal of orthodontics
Pub Date : 1998-11-01 DOI: 10.1093/ortho/25.4.283
S Sunna, W P Rock

The aim of the study was to evaluate and compare the clinical performance of adhesive precoated brackets (APC) with that of two types of uncoated bracket bases, Straight-Wire and Dyna-Lock, bonded using two types of orthodontic adhesives, Transbond XT, and Right-On. Forty consecutive orthodontic patients entered the trial and 607 brackets were bonded. The incidence and site of first time bond failures were recorded over a period of 1 year. The time required for bonding was also recorded. The overall bond failure rate was 6.6 per cent. There were no significant differences between the failure rates of the five groups, or between the upper and lower arch. However, significantly more brackets failed on the left side than on the right. Premolar brackets were lost most often, whilst incisor brackets failed least. No association was found between bond failure and time elapsed since bonding. Bonding time was least with Right-On adhesive. There were no significant differences between bonding times using APC or Transbond. Results of the present study conflict with those of a previous ex vivo study by the authors, using the same materials and bonding technique. Suggested reasons for this are discussed.

本研究的目的是评估和比较使用Transbond XT和Right-On两种正畸粘接剂粘合的两种未涂层支架基架(straight wire和Dyna-Lock)与粘合剂预涂层支架(APC)的临床性能。连续40例正畸患者进入试验，共粘接607个托槽。在1年的时间里记录了首次粘结失效的发生率和地点。还记录了粘合所需的时间。整体粘结失败率为6.6%。五组之间的失败率没有显著差异，上下弓之间也没有显著差异。然而，左侧的支架明显比右侧的更多。前磨牙托槽丢失最多，而门牙托槽丢失最少。粘结失效与粘结后的时间没有关联。Right-On粘接时间最短。APC与Transbond的粘接时间无显著差异。本研究结果与作者先前使用相同材料和粘合技术进行的离体研究结果相矛盾。对此提出的原因进行了讨论。
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引用次数: 164
The DARG report. DARG报告。
British journal of orthodontics
Pub Date : 1998-11-01 DOI: 10.1093/ortho/25.4.299
P Durning
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引用次数: 0
Orthodontic products update. Cross infection control and elastomeric module delivery systems. 正畸产品更新。交叉感染控制和弹性模块输送系统。
British journal of orthodontics
Pub Date : 1998-11-01 DOI: 10.1093/ortho/25.4.301
C Davies
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引用次数: 4
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