Comparison of the friction forces delivered by different elastomeric patterns and metal ligature on conventional metal brackets with a NiTi arch wire versus a self-ligating system: An in vitro study

Pieroni, Mateus; Facury, Analia Gabriella Borges Ferraz; Santamaria‐Jr, Milton; Correr, Américo Bortolazzo; Correr-Sobrinho, Lourenço; Filho, Mário Vedovello; Costa, Ana Rosa; Neves, José Guilherme

doi:10.1016/j.ortho.2022.100633

Cited by 4 publications

(3 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ligation choice does not seem to be primarily influenced by differential microbial colonization and periodontal effects, but differences exist in the clinical performance of various ligation methods. Biomechanically, differences in applied force magnitude, torque expression, and frictional resistance have been reported between elastomeric and steel ligatures [ 60 – 62 ]. Additionally, unlike elastomeric ligatures, steel ligatures do not suffer from force decay phenomena [ 63 – 65 ] and can be left in place for longer periods and therefore be combined with longer intervals between appointments.…”

Section: Discussionmentioning

confidence: 99%

Influence of elastomeric and steel ligatures on periodontal health during fixed appliance orthodontic treatment: a systematic review and meta-analysis

Hussain,

Campobasso,

Noman

et al. 2024

Prog Orthod.

View full text Add to dashboard Cite

Introduction Metallic and elastomeric ligatures are widely used in orthodontics to secure the archwire within the bracket slots, but elastomeric ligatures have traditionally been associated with increased microbial colonization, which could adversely affect periodontal health. Aim This systematic review compares the periodontal effects of elastomeric and steel ligatures used for orthodontic fixed appliances. Methods Unrestricted literature search of 7 databases (MEDLINE, Scopus, Web of Science, Embase, Cochrane Database of Systematic Reviews, Cochrane Central Register of Controlled Trials, and Virtual Health Library) up to July 2023 were performed for randomized / non-randomized clinical studies on humans comparing the two ligation methods during fixed-appliance therapy. After duplicate study selection, data extraction, and risk-of-bias assessment with the Risk of Bias (RoB) 2 or the Risk Of Bias In Non-randomized Studies - of Interventions (ROBINS-I) tool, random-effects meta-analyses of Mean Differences (MD) or Standardized Mean Differences (SMD) and their 95% confidence intervals (CIs) were carried out, followed by assessment of certainty of existing evidence with the Grades of Recommendation, Assessment, Development, and Evaluation (GRADE) approach. Results A total of 11 studies (3 randomized / 8 non-randomized) with 354 patients (mean age 14.7 years and 42% male) were included. No statistically significant differences were seen for plaque index (5 studies; SMD = 0.48; 95% CI = -0.03 to 1.00; P = 0.07), gingival index (2 studies; MD = 0.01; 95% CI = -0.14 to 0.16; P = 0.89), probing pocket depth (2 studies; MD = 0; 95% CI = -0.17 to 0.16; P = 0.97), or Streptococcus mutans counts (4 studies; SMD = 0.40; 95% CI=-0.41 to 1.20; P = 0.21). Elastomeric ligatures were associated with moderately increased total bacterial load (3 studies; SMD = 0.43; 95% CI = 0.10 to 0.76; P = 0.03). Confidence in these estimates was low in all instances due to the inclusion of non-randomized studies with high risk of bias. Conclusions Existing low quality evidence indicates that ligature method does not seem to influence the periodontal health during fixed treatment, even if elastomeric ligatures are associated with a moderate increase of bacterial load. Registration PROSPERO (CRD42023444383)

show abstract

Section: Discussionmentioning

confidence: 99%

Influence of elastomeric and steel ligatures on periodontal health during fixed appliance orthodontic treatment: a systematic review and meta-analysis

Hussain,

Campobasso,

Noman

et al. 2024

Prog Orthod.

View full text Add to dashboard Cite

show abstract

“…3 6 14 17 21 22 23 29 30 31 Although friction is not the only determining factor for treatment efficiency, it is crucial when used correctly and, at the same time, associated with the forces dissipated by the orthodontics arcs. 20 25 32 33…”

Section: Discussionmentioning

confidence: 99%

“…3,6,14,17,[21][22][23][29][30][31] Although friction is not the only determining factor for treatment efficiency, it is crucial when used correctly and, at the same time, associated with the forces dissipated by the orthodontics arcs. 20,25,32,33 The straight-line vertical traction methodology of orthodontic wires connected to brackets by different ligature models is commonly used to compare the frictional force in different orthodontic systems. 6,10,14,15,17 The use of the universal testing machine is also supported by the literature since several studies evaluate friction in orthodontics using this test model.…”

Section: Discussionmentioning

confidence: 99%

Development and Evaluation of a New Orthodontic Ligature: Frictional Force Analysis

et al. 2023

View full text Add to dashboard Cite

Objective To evaluate and compare the friction of different ligature modes used in orthodontics, and to propose a new ligature model for conventional brackets (“H low-friction orthodontic ligature). Materials and Methods Samples were randomly divided into seven experimental groups: (1) resin H ligature (H3D), designed by the authors of this study and produced in a 3D printer, with conventional bracket; (2) metal H ligature (HFM), with conventional bracket; (3) passive self-ligating bracket (SLP); (4) “8” low-friction unconventional elastic (LT8), with conventional bracket; (5) loose conventional metal ligature (MLS), with conventional bracket; (6) conventional metal ligature fully tightened (MLT), with conventional bracket; (7) conventional elastic ligature (CEL), with conventional bracket—control. All samples were subjected to mechanical static friction testing using the EMIC DL 2000 universal testing machine. Statistical Analysis To assess the normality requirement, the Shapiro–Wilk test was used, which showed a non-normal distribution for the means of the groups (p < 0.05). Therefore, statistical tests were performed to assess the existence of statistically significant differences between the groups through the Kruskal–Wallis, followed by Dunn's test, pairwise comparison, p < 0.05. Results The results obtained showed lower friction values for HFM (0.002 kgf), SLP (0.003 kgf), and LT8 (0.004 kgf)—these did not differ statistically from each other. These were followed by H3D (0.020 kgf), MLS (0.049 kgf), CEL (0.12 kgf), and, finally, MLT (0.21 kgf). Conclusion The lowest friction value was found for the metal H ligature, similar to the self-ligating bracket and the “8” low-friction unconventional elastic. The resin H ligature presented intermediate friction values and the highest friction force was found for the MLT group.

show abstract

Novel antibacterial orthodontic elastomeric ligature with oral biofilm-regulatory ability to prevent enamel demineralization

Bian,

Lyu,

Zhu

et al. 2024

Dental Materials

View full text Add to dashboard Cite

Comparison of the friction forces delivered by different elastomeric patterns and metal ligature on conventional metal brackets with a NiTi arch wire versus a self-ligating system: An in vitro study

Cited by 4 publications

References 44 publications

Influence of elastomeric and steel ligatures on periodontal health during fixed appliance orthodontic treatment: a systematic review and meta-analysis

Influence of elastomeric and steel ligatures on periodontal health during fixed appliance orthodontic treatment: a systematic review and meta-analysis

Development and Evaluation of a New Orthodontic Ligature: Frictional Force Analysis

Novel antibacterial orthodontic elastomeric ligature with oral biofilm-regulatory ability to prevent enamel demineralization

Contact Info

Product

Resources

About