Comparison of the efficacy of tooth alignment among lingual and labial brackets: an<i>in vitro</i>study

Alobeid, Ahmad; El‐Bialy, Tarek; Reimann, Susanne; Keilig, Ludger; Dirk, Cornelius; Jäger, Andreas; Bourauel, Christoph

doi:10.1093/ejo/cjy005

Cited by 16 publications

(18 citation statements)

References 24 publications

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“…Previous studies have compared buccal and lingual orthodontic treatment 5,10,11,18‐24 . Advantages and disadvantages have been reported for both alternatives: patients undergoing lingual orthodontic treatment were shown to have impaired speech articulation compared with patients having buccal orthodontic treatment 19‐22,25 .…”

Section: Discussionmentioning

confidence: 99%

“…Previous studies have compared buccal and lingual orthodontic treatment. 5,10,11,[18][19][20][21][22][23][24] Advantages and disadvantages have been reported for both alternatives: patients undergoing lingual orthodontic treatment were shown to have impaired speech articulation compared with patients having buccal orthodontic treatment. [19][20][21][22]25 Moreover, a systematic review has reported that lingual appliances are related to overall oral discomfort and increased eating difficulty.…”

Section: Ta B L Ementioning

confidence: 99%

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How efficient is customized lingual orthodontics? An assessment of treatment outcome

Fontinha

Cattaneo

Cornelis

2021

Orthod Craniofacial Res

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Objective: To assess the efficacy of lingual orthodontics by comparing setups and post-treatment casts.Setting and sample population: Thirty-two consecutive patients treated with a customized lingual orthodontic appliance were included in this retrospective study. Materials and methods:Initial casts, post-treatment casts and setups were scanned, and the digital models produced were analysed in terms of overjet; overbite; molar and canine relationships; intercanine, interpremolar and intermolar distances; upper and lower arch lengths; midline deviation; bucco-lingual angulation of all teeth and mesio-distal angulation of anterior teeth. Comparisons between setups and posttreatment casts were performed via paired t tests. Relationships between the planned and actual correction were studied using regression analysis.Results: Statistically significant differences in bucco-lingual torque between setups and post-treatment casts were found for all upper teeth, except for central incisors.In the lower jaw, statistically significant differences in bucco-lingual torque were found between setups and post-treatment casts for the lower incisors and molars.No statistically significant differences in mesio-distal angulation of anterior teeth were found between setups and post-treatment casts. Upper and lower arch widths did not vary significantly between setups and final casts, except upper inter-second premolar and intermolar distances. Conclusion:Customized lingual appliances offer efficient control of mesio-distal angulation of all anterior teeth. Significant differences in torque between setups and post-treatment casts were observed for upper lateral incisors, canines, premolars and molars, as well as lower incisors and molars. However, the torque difference was clinically significant (over three degrees) for upper second premolars and molars only.

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Section: Discussionmentioning

confidence: 99%

Section: Ta B L Ementioning

confidence: 99%

How efficient is customized lingual orthodontics? An assessment of treatment outcome

Fontinha

Cattaneo

Cornelis

2021

Orthod Craniofacial Res

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“…Compared with labial orthodontics, lingual orthodontics has the advantages of invisibility, beauty, and preserving posterior anchorage. 10,11 However, the use of lingual appliance to adduct the anterior teeth easily results in torque loss. 12 This adverse effect can be reduced by changing the height of power-arm and the position of the force applied in conjunction with the application of the implant anchorage.…”

Section: Discussionmentioning

confidence: 99%

A Three-Dimensional Finite Element Analysis: Maxillary Dentition Distalization with the Aid of Microimplant in Lingual Orthodontics

Zhuang²,

Zhang

2021

IJGM

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“…Bracket type, along with slot size, slot width, method of ligation, wire size, type of alloy, and contact angle between slot and wire, has been attributed to frictional resistance in sliding. 18 Although many factors were involved when interpreting the variation in frictional forces between labial and lingual brackets, the difference in bracket slot-width (mesio-distal) could be one of the important deciding factors. Since labial and lingual brackets have many differences in terms of dimension and clinical performance, the mechanics involved should be understood.…”

Section: Discussionmentioning

confidence: 99%

“…When compared to labial side, lingual self-ligating brackets have altered parameters of friction like mode of ligation, force of ligation, bracket design, and contact angle, and only few studies have been conducted to estimate friction between archwire alloys and lingual self-ligating brackets. [16][17][18][19][20] An understanding of the frictional characteristics of labial and these newer lingual brackets with various archwire alloys is imperative and hence this study is to evaluate the frictional properties of lingual self-ligating brackets comparing with that of conventional lingual and labial self-ligating brackets with three different archwire alloys in various environments.…”

Section: Introductionmentioning

confidence: 99%

An In Vitro Evaluation of Frictional Characteristics of Labial and Lingual Self-ligating Brackets with Various Archwire Alloys

Sahany

Kumar

2020

J Indian Orthod Soc

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Background: An understanding of bracket slot–archwire interface is imperative for biomechanical effectiveness in orthodontic sliding mechanics and hence the aim of the study is to evaluate frictional properties of lingual self-ligating brackets comparing with conventional lingual and labial self-ligating brackets using three different archwire alloys in various environments. Materials and Methods: This in vitro study compared the frictional force of labial and lingual self-ligating and conventional lingual brackets with stainless steel, TMA, and Cr-Co alloy archwires of 0.017” × 0.025” dimension in dry and wet conditions. Frictional forces were evaluated in a simulated half arch fixed appliance using a testing machine. Static and kinetic friction were measured and analyzed by one-way analysis of variance (ANNOVA) test and post hoc Duncan multiple range test. The effects of brackets and archwires in dry and wet conditions were analyzed by three-way variance (ANNOVA) test. Result: The maximum frictional forces were observed with labial self-ligating brackets followed by lingual conventional brackets and the least by lingual self-ligating brackets. Of all the wires tested, TMA wires had the maximum frictional forces followed by Co-Cr and stainless steel. In both conditions, the values were non-significant with all bracket–wire combinations except with Co-Cr and TMA wires. Conclusions: Varied amount of frictional force was shown by the brackets and wires with highest by labial self-ligating bracket, followed by lingual conventional and lingual self-ligating brackets. TMA wires experienced higher friction followed by Co-Cr and stainless steel with minimum friction.

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Comparison of the efficacy of tooth alignment among lingual and labial brackets: anin vitrostudy

Abstract: The effectiveness of lingual brackets in correcting vertical and anteroposterior displacement achieved during the initial alignment phase of orthodontic treatment is lower than that of the effectiveness of labial brackets.

Cited by 16 publications

References 24 publications

How efficient is customized lingual orthodontics? An assessment of treatment outcome

How efficient is customized lingual orthodontics? An assessment of treatment outcome

A Three-Dimensional Finite Element Analysis: Maxillary Dentition Distalization with the Aid of Microimplant in Lingual Orthodontics

An In Vitro Evaluation of Frictional Characteristics of Labial and Lingual Self-ligating Brackets with Various Archwire Alloys

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