The effect of buccal–lingual slot dimension size on third-order torque response

Romanyk, Dan L.; Au, Kenji; Isfeld, Darren; Heo, Giseon; Major, Michael P.; Major, Paul W.

doi:10.1093/ejo/cjw043

Cited by 5 publications

(2 citation statements)

References 15 publications

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“…The conventional multibrackets technique is the most widely studied orthodontic appliance and it has been described as a tool with efficient torque control capability [4, 5]. Since the torque expression mainly depends on the bracket/archwire interaction, several factors, such as the amount of torsion, the size and quality of the wire, the play of the wire in the bracket slot, the angulation, and the deformability of the bracket could produce important variations [6, 7].…”

Section: Introductionmentioning

confidence: 99%

Buccolingual Inclination Control of Upper Central Incisors of Aligners: A Comparison with Conventional and Self-Ligating Brackets

Sfondrini

Gandini

Castroflorio

et al. 2018

BioMed Research International

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Objective The upper incisors torque expression is essential for the orthodontic treatment accuracy. Various orthodontic devices are claimed to have different inclination control capacity. The purpose of this retrospective study was to compare the radiographic buccolingual inclination of upper incisors in patients treated with three different orthodontic techniques. Material and Methods Conventional brackets (Victory, 3M), self-ligating appliances (Damon Q, Ormco), and aligners (Invisalign, Align Technology) were tested. Cephalometric data of 25 patients with similar skeletal and dental pretreatment parameters were collected for each technique. Position changes of upper central incisors were assessed with radiographic evaluation before and after therapy. Three different parameters were considered: 11∧SnaSnp, 11∧Ocl and I+ TVL. All variables were measured before (T0) and after (T1) treatment and their variation over treatment was assessed. Results When evaluating angular measurements, 11∧SnaSnp and 11∧Ocl angles showed the highest numeric variation with conventional brackets. Lowest values were reported with aligners. However, the differences among various techniques were not significant for both angles (P>0.05). Also I+ TVL linear value variation did not show significant differences among the different groups tested (P>0.05). Conclusion Conventional multibrackets appliance showed the highest incisal position variations over treatment, but the differences among various groups were not significantly different.

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Section: Introductionmentioning

confidence: 99%

Buccolingual Inclination Control of Upper Central Incisors of Aligners: A Comparison with Conventional and Self-Ligating Brackets

Sfondrini

Gandini

Castroflorio

et al. 2018

BioMed Research International

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“…Cabe mencionar también el estudio de Romanyk en 2017quien nos indica superioridad de los aparatos de autoligado activo, relacionando el material del bracket pasivo que se utilizó en su experimento, el cual sería un limitante para cumplir con la función de expresar el torque necesario. (Romanyk et al 2017) Al igual que los autores anteriores Badawi (2018) determinó que existe mayor eficacia por parte de los brackets de autoligado activo al momento de expresar torque de una manera adecuada (Badawi et al 2008), sin embargo, existen estudios como el de Franco (2015) quien afirma que, al momento de realizar su experimento, los primeros en expresar un torque efectivo fueron los de compuerta pasiva, atribuyendo este suceso al tipo de material es decir rugosidad que el bracket presentó. (Franco et al 2015) Los estudios realizados por Dalstra (2015) por su parte indican que, los brackets convencionales al cambiar la ligadura elastomérica por ligadura metálica serían más efectivos en lo que a torque se refiere en comparación con los brackets de autoligado activo, coincidiendo de este modo con lo que Johanssen manifestó.…”

Section: Discussionunclassified

Expresión del torque en brackets de auto ligado activo versus el pasivo

Salazar-Ojeda

Ramírez-Romero

2022

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Los brackets de autoligado se han hecho populares en los últimos 10 años, su importancia radica en el modo de ligadura que utilizan y los beneficios que representa. Existen dos tipos, los autoligados activos en donde la compuerta tiene contacto directo con el arco metálico, y autoligado pasivo en donde los brackets actúan como tubos principalmente en la etapa inicial del tratamiento ortodóncico. El objetivo de esta revisión de la literatura es conocer el torque de los brackets de autoligado activo versus el, así como también actualizar datos importantes de los mismos. Se recopilaron 28 artículos científicos de la base de datos Scopus, PubMed, Web of Science, Portal Regional de la Bvs, Scielo, los cuales aportaron evidencia a partir de estudios in vitro, en donde la eficacia de expresión de torque es superior en los brackets de autoligado activo durante las etapas finales del tratamiento.

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Variation in bracket slot sizes, ligation methods and prescriptions: UK national survey

Yassir

McIntyre

Bearn

2019

International Orthodontics

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This study investigated the use of fixed bracket slot sizes, ligation method and prescriptions in the UK using an online survey/questionnaire comprised of seven questions. The questionnaire link along with an explanation of its nature was circulated via the British Orthodontic Society (BOS) to all 978 Specialists in Orthodontics. Two subsequent email reminders were sent to nonresponders. Chi-square analyses determined the statistical differences in the use of bracket slots and prescriptions according to the region of practise and years of experience. The respondents represented 31.2% of the UK specialist orthodontists. Most of the respondents practised in the South of England with experience between 11-30 years. The vast majority of the respondents routinely used brackets with the MBT prescription (81.6%) and 0.022-inch slot size (98.7%), which was statistically significantly higher for all geographical regions and experience levels (P < 0.001). The majority of the respondents reported either 100% or 90% use of conventional brackets when compared to self-ligating brackets. In conclusion, the vast majority of UK specialist orthodontists use conventional ligating MBT prescription brackets with the 0.022-inch slot size. This was primarily because they perceive this combination provides better treatment outcomes, whilst many respondents also indicated they were taught and trained using this combination and that there was not enough evidence to support a change in their clinical practice.

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The effect of buccal–lingual slot dimension size on third-order torque response

Cited by 5 publications

References 15 publications

Buccolingual Inclination Control of Upper Central Incisors of Aligners: A Comparison with Conventional and Self-Ligating Brackets

Buccolingual Inclination Control of Upper Central Incisors of Aligners: A Comparison with Conventional and Self-Ligating Brackets

Expresión del torque en brackets de auto ligado activo versus el pasivo

Variation in bracket slot sizes, ligation methods and prescriptions: UK national survey

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