Self-ligating brackets: Present and future

Rinchuse, Donald J.; Miles, Peter

doi:10.1016/j.ajodo.2006.06.018

Cited by 85 publications

(56 citation statements)

References 17 publications

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“…15,17 Both articles note that active SLBs usually have a sliding spring clip, which encroaches on the slot from the labial aspect and reduces the slot size in the horizontal dimension, potentially placing an active force on the archwire. In contrast, passive SLBs have a slide that opens and closes vertically, thereby creating a passive labial surface that lacks the ability to encroach upon the slot and store force by deflection of a metal clip.…”

Section: Discussionmentioning

confidence: 99%

“…[13][14][15] Since the SPEED appliance was introduced by Hansen in the early 1980s, 16 various SLBs, such as the Damon (Ormco, Glendora, Calif) and In-Ovation (DENTSPLY GAC, Bohemia, NY), have been introduced commercially and acquired popularity. 15,17 The basic advantages of SLBs involve the elimination of certain utilities or materials such as elastomeric modules, along with the process or tools associated with their application, and the slide or clip opening-closing system of SLBs increases chair-side efficiency due to elimination of the ligaturing process. 5,6 Other advantages claimed by bracket manufacturers, such as increased patient comfort, improved oral hygiene, superior patient cooperation and acceptance, less chair time, shorter treatment time, and enhanced expansion of arches, have interested orthodontists.…”

Section: Introductionmentioning

confidence: 99%

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Effects of third-order torque on frictional force of self-ligating brackets

Muguruma

Iijima

Brantley³

et al. 2014

The Angle Orthodontist

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Objective: To investigate the effects of third-order torque on frictional properties of self-ligating brackets (SLBs). Materials and Methods: Three SLBs (two passive and one active) and three archwires (0.016 3 0.022-inch nickel-titanium, and 0.017 3 0.025-inch and 0.019 3 0.025-inch stainless steel) were used. Static friction was measured by drawing archwires though bracket slots with four torque levels (06, 106, 206, 306), using a mechanical testing machine (n 5 10). A conventional stainlesssteel bracket was used for comparison. Results were subjected to Kruskal-Wallis and MannWhitney U-tests. Contact between the bracket and wire was studied using a scanning electron microscope. Results: In most bracket-wire combinations, increasing the torque produced a significant increase in static friction. Most SLB-wire combinations at all torques produced less friction than that from the conventional bracket. Active-type SLB-wire combinations showed higher friction than that from passive-type SLB-wire combinations in most conditions. When increasing the torque, more contact between the wall of a bracket slot and the edge of a wire was observed for all bracket types. Conclusions: Increasing torque when using SLBs causes an increase in friction, since contact between the bracket slot wall and the wire edge becomes greater; the design of brackets influences static friction.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of third-order torque on frictional force of self-ligating brackets

Muguruma

Iijima

Brantley³

et al. 2014

The Angle Orthodontist

View full text Add to dashboard Cite

show abstract

“…3 Currently, there is a lack of conclusive evidence showing how esthetic bracket material and bracket design affect RS. [4][5][6] This uncertainty can often be explained by differences in experimental design, as most in vitro studies do not necessarily reflect situations that readily apply to clinical practice. During orthodontic tooth movement, teeth tip until binding occurs between the bracket and archwire, 7,8 and it has been shown that binding within the bracket can make a significantly larger contribution to RS than force of ligation.…”

Section: Introductionmentioning

confidence: 99%

Effect of applied moment on resistance to sliding among esthetic self-ligating brackets

Pliska

Fuchs

Beyer

et al. 2013

The Angle Orthodontist

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Objective: To determine the effect of mode of ligation and bracket material on resistance to sliding (RS) by comparing various esthetic brackets of conventionally ligated and self-ligating (SL) designs under an increasing applied moment in the second-order dimension. Materials and Methods: Eight different commercially available esthetic brackets of SL and conventional elastomeric-ligated (CL) designs were mounted on a testing apparatus to simulate canine retraction using sliding mechanics and the application of a moment on 0. . The RS at calculated moments of 2000 g-mm and 4000 g-mm was determined and compared between the various brackets. Descriptive measures and one-way analysis of variance were used to calculate means and statistical differences among the bracket types. Results: The CL monocrystalline bracket displayed significantly greater (P , .05) RS than all other brackets tested. Among the other brackets, the range of RS values was 145.8-191.7 g and 291.9-389.2 g at moments of 2000 g-mm and 4000 g-mm, respectfully, though these differences were not significant (P , .05). All brackets tested displayed greater levels of RS (P , .05) at 4000 g-mm than at 2000 g-mm.Conclusion: With the exception of the CL monocrystalline bracket, all brackets displayed comparable amounts of RS regardless of mode of ligation or bracket slot material. (Angle Orthod. 2014;84:134-139.)

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“…Self ligation appliances regained popularity since the early nineties because of the certain advantages which were claimed such as: increased patient comfort, better oral hygiene, increased patient cooperation, less chair time, shorter treatment time, greater patient acceptance, expansion, and less dental extractions (10,12,13). Self ligation appliances achieved significant amount of expansion with no apical root resorption and with increase in buccal bone thickness.…”

Section: Discussionmentioning

confidence: 99%

A Retrospective Study to Evaluate the Intra-Arch Dimensional Changes in Moderate Crowding Cases Treated Non Extraction with a Passive Self-Ligation Appliance.

Bharadwaj¹,

Singh²,

Kannan

et al. 2017

Iran J Ortho

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Background: Non-extraction treatment protocols are better accepted by patients as well as clinicians. Among the techniques and mechanics with the potential to facilitate non-extraction treatment includes headgears, fixed sagittal correctors, transverse expansion screws and self-ligating systems. Objectives: To evaluate the intra-arch dimensional changes in moderate crowding cases, treated non-extraction with a passive selfligating (Damon 3MX) appliance using digitized models and lateral cephalograms. Methods: A total of 20 patients (age group of 15 -18 years) who had undergone non extraction orthodontic treatment with the Damon 3MX appliance were selected. All the pre-treatment and post-treatment dental stone models of maxillary and mandibular arches were scanned using 3D digital scanner (Maestro 3D, Greatlakes, USA) and were converted into digital models. Various parameters undertaken were measured digitally on the computer in millimetres. Cephalometric tracings of pre and post treatment cephalograms were performed using digital cephalometrics (Nemo Ceph, version 6.0, Spain). Statistical analysis was performed using t-test. Results: More transverse expansion was observed in the region of 1 st and 2 nd premolars as compared to the inter-canine and inter

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Self-ligating brackets: Present and future

Cited by 85 publications

References 17 publications

Effects of third-order torque on frictional force of self-ligating brackets

Effects of third-order torque on frictional force of self-ligating brackets

Effect of applied moment on resistance to sliding among esthetic self-ligating brackets

A Retrospective Study to Evaluate the Intra-Arch Dimensional Changes in Moderate Crowding Cases Treated Non Extraction with a Passive Self-Ligation Appliance.

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