Conventional Archwires Research Articles

Impact of Prophylactic Fluoride Agents On the Surface Roughness of Newer orthodontic arch wires

Fluorides serve an important part in orthodontic therapy as a prophylactic strategy. However, the harmful effects of fluoride are typically disregarded due to its widespread use as an anti-cariogenic agent in a variety of dental materials. The effects of these fluoride agents on conventional arch wires have been studied extensively but not on newer wires such as coated wires or braided wires. Hence this study was undertaken to assess the effects of prophylactic fluoride agents on the surface properties of non-coated Nickel-Titanium orthodontic wires and compare it with coated esthetic Ni-Ti wires and braided Ni-Ti wire. Materials and methods: In this study, we compared three packages of 270 orthodontic arch wires made of nickel titanium. For the control, the third set of 30 wires was stored in plastic vials containing 5ml of artificial saliva for two months. Subgroup a did not make use of any fluoride treatments. Samples from subgroup b were treated with Phos-flur gel for one minute every day for 2 months, while those from subgroup c were treated with Prevident 5000. An optic profilometer was used to measure the wires roughness. Results: The investigation found that both the acidulated fluoride agent (Phos-flur gel) and neutral fluoride agent (Prevident 5000) had an effect on the surface attributes of all three sets of wires. Coated esthetic Ni-Ti wires showed highest surface roughness followed by braided Ni-Ti wire. Conclusion: The findings of the research showed that using fluoride preventive treatments (such as mouthwash or gels) during orthodontic treatment decreases the arch wires characteristics. Bangladesh Journal of Medical Science Vol.23 (Special Issue) 2024 p.S107-S114

Comparative evaluation of frictional characteristics between nano coated and non coated orthodontic brackets and arch wire configuration-An experimental in vitro study.

To compare and assess the coefficient of frictional resistance between nano-coated orthodontic brackets and orthodontic archwires with conventional orthodontic brackets and archwires. In this experimental study, 128 samples were divided into 4 groups consisting of 32 orthodontic wires and brackets in each group. The samples were randomly allocated into GROUP A- ZNO nanoparticle coated archwires and brackets, GROUP B ZNO nanoparticle coated bracket and conventional archwire, GROUP C-ZNO nanoparticle coated archwire and conventional bracket, and GROUP D- conventional archwire and bracket after positioning them on special jigs frictional resistance was studied and evaluated. Bon - Ferroni test was used for inter group comparison and one way ANOVA was used for intr-group comparison. The lowest mean frictional resistance is seen with Group A (nanocoated archwire with nanocoated bracket) N = 0.3401 ± 0.420; and highest with Group D (conventional brackets with conventional archwires) N = 0.8413 ± 0.60. a significant difference in mean frictional resistance was observed between the groups (P ≤ 0.01). The frictional resistance for the groups was in the following order from lowest to highest: group A < B < C < D. The study showed decreased friction in ZNO nanoparticle coated archwires and brackets than conventional archwires and brackets.

The verisimilitude of damon brackets versus damon archwires– The real hero

: The Damon passive self-ligating system introduced broad archwires and a passive clip with posterior expansion and with minimal tipping of the teeth. To evaluate and compare the effectiveness of Damon brackets and Damon arch wires in maxillary arch dimensional changes with that of conventional brackets and conventional archwires. A total of 20 patients were selected for the study and randomly divided into 4 Groups with 5 patients in each group. Records (Study models) were taken before starting the treatment (T0) and at the end of leveling and alignment (T1) for all the 20 subjects. Pre-treatment (T0) and at the end of leveling and alignment (T1) study models were assessed for inter canine width, inter first premolar width and inter first molar width. There was statistically significant increase in maxillary arch width in Damon system and conventional bracket with Damon archwires when compared to conventional bracket system and Damon brackets with conventional archwires. The use of conventional or self-ligating brackets does not seem to be an important predictor of change in maxillary arch width in non-extraction patients. The amount of increase in arch width was due to Damon archwires and not because of Damon brackets.