Antibacterial activity and debonding force of different lingual retainers bonded with conventional composite and nanoparticle containing composite: An in vitro study

Mounica, Kotta; Gorantla, Suresh; Muddada, Vizia; Lenka, Ramoji Rao; Karri, Tarakesh; Kumar, Sarath; Mahendra, Tivanani Venkata Durga

doi:10.1016/j.ejwf.2020.03.001

Cited by 12 publications

(11 citation statements)

References 23 publications

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“…e ARI scores were also assessed in the present study, which are important in determining the location of debonding. e results showed no significant difference in the frequency of ARI scores between the groups, which was in line with the results of Scribante et al [26], El-Sorogy et al [2], Cook et al [1], and Kotta et al [10] but different from the results of Foek et al [7]. In the latter study, the mode of failure was the same for all specimens.…”

Section: Discussionsupporting

confidence: 87%

“…The debonding force of flat Ortho-Flex wire in their study was close to the value obtained in the present study; although, their study was conducted on premolar teeth with a highly different morphology compared with mandibular incisors. Kotta et al [ 10 ] measured the debonding force of three types of retainers and reported a significant difference between them. However, the debonding force of Bond-A-Braid flat wire (56.11 N) was close to the value obtained in the present study.…”

Section: Discussionmentioning

confidence: 99%

“…Some previous studies reported that the debonding forces were not significantly different for different types of retainers [ 1 , 4 , 7 ]; while, some others reported significant differences in debonding forces of different retainers [ 2 , 10 ]. Considering this controversy and gap of information regarding the rectangular multibraided ribbon arc wire, this study aimed to assess the shear bond strength (SBS) of four types of bonded retainers and their adhesive remnant index (ARI) score.…”

Section: Introductionmentioning

confidence: 99%

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Shear Bond Strength of Four Types of Orthodontic Retainers after Thermocycling and Cyclic Loading

Golshah

Simkooei

2021

International Journal of Dentistry

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Objectives. This study assessed the shear bond strength (SBS) of four types of orthodontic retainers after thermocycling and cyclic loading. Materials and Methods. This in vitro, experimental study evaluated 120 extracted mandibular central and lateral incisors. The teeth were mounted in acrylic resin blocks in sets of three, such that the interdental contacts and positioning of the teeth resembled the dental arch. The acrylic blocks were divided into four groups (n = 10) for the use of 0.016 × 0.022-inch Bond-A-Braid® wire, 0.0195-inch twisted wire, 0.0175-inch coaxial wire, and 0.038 × 0.016-inch Ortho-Flex Tech® wire, as retainers. The retainers were bonded to the lingual surface of the teeth with Transbond XT adhesive in all groups, and the specimens underwent thermocycling and cyclic loading (125,000 load cycles applied to the incisal edge of the incisor tooth in the middle, simulating 6 months of clinical service). Any fracture in the process of aging was recorded. The teeth were then subjected to vertical loads applied along their occlusoapical axis in a universal testing machine to determine the SBS in Newtons. The adhesive remnant index (ARI) scores were also determined. Data were analyzed using ANOVA, the Monte Carlo chi-square test, and the Kruskal–Wallis test. Results. Thermocycling and cyclic loading did not cause degradation or fracture of the retainers. The SBS and ARI scores of the four groups were not significantly different ( P > 0.05 ). Conclusion. The SBS of retainers with flat rectangular-shaped cross-section was similar to that of retainers with a round cross-section; thus, they have no superiority over each other in this respect.

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Section: Discussionsupporting

confidence: 87%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Shear Bond Strength of Four Types of Orthodontic Retainers after Thermocycling and Cyclic Loading

Golshah

Simkooei

2021

International Journal of Dentistry

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“…In line with the present study, Carrouel et al confirmed the antimicrobial activity of nanoparticles such as TiO 2 , which might be due to the fast release of nanoparticles into the environment. Kotta et al (2020) compared the antimicrobial characteristic of lingual retainers bonded with conventional composite and nanoparticle-containing composite (32). In agreement with the present study, they confirmed that the TiO 2 composite group showed statistically more significant antibacterial activity without compromising the bond strength.…”

Section: Ruparelia Et Al (supporting

confidence: 90%

Comparative Antibacterial Efficacy of Orthodontic Brackets Coated with Titanium Dioxide, Copper Oxide, and Hydroxyapatite-Silver Nanoparticles Against Streptococcus mutans

Ameli

Asadi

Ghorbani

et al. 2022

Middle East J Rehabil Health Stud

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Background: The development of dental caries around orthodontic brackets is a common complication of orthodontic treatment. Objectives: This study aimed to compare the antibacterial efficacy of stainless steel (SS) brackets coated with copper oxide nanoparticles (CuO-NPs), titanium dioxide nanoparticles (TiO2-NPs), and hydroxyapatite silver nanoparticles (HA-SNPs) against Streptococcus mutans. Methods: In this in vitro, experimental study, 20 orthodontic brackets were assigned to four groups (n = 5, each group). One group served as the no-intervention control group, and the brackets in the remaining three groups underwent dip coating with CuO-NPs, TiO2-NPs, and HA-SNPs < 100 nm. The number of S. mutans colonies was counted after 24 h, one week, and one and three months. Data were analyzed using the Shapiro Wilk test, repeated measures ANOVA, and Bonferroni multiple comparisons test. Results: All three experimental groups exhibited similar antibacterial properties after 90 days of trial (P > 0.05). Moreover, CuO-NPs had a greater inhibitory effect than TiO2-NPs on S. mutans after 24 h (P = 0.007). However, the inhibitory effect of HA-SNPs was not significantly different from that of TiO2-NPs (P = 0.259) or CuO-NPs (P = 0.224). Conclusions: Considering the similar antibacterial properties of all three coatings in the long term, all three types of nanoparticles can be used to coat orthodontic brackets to prevent caries. However, due to the high cost and difficult preparation of HA-SNPs and the slightly higher efficacy of CuO-NPs in the short-term, the latter may be preferred for this purpose.

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“…Previous studies have indicated acceptable compatibility of metal-bonded retainers with periodontal health [ 8 , 9 ] and showed success rates between 60–90% in long-term usage [ 10 ]. However, the multi-stranded bonded lingual retainer has some esthetic limitations and usage restrictions in nickel allergy patients [ 11 ]. Therefore, fiber-reinforced composite (FRC) retainers are used to substitute stainless-steel wires, and hence, they are metal-free alternatives, have higher esthetic, and allow chemical adhesion of the retainer to the bonding agent [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

Preparation of Nano-Apatite Grafted Glass-Fiber-Reinforced Composites for Orthodontic Application: Mechanical and In Vitro Biofilm Analysis

et al. 2022

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This study aimed to fabricate nano-hydroxyapatite (nHA) grafted/non-grafted E-glass-fiber-based (nHA/EG) and E-glass fiber (EG) orthodontic retainers and to compare their properties with commercially available retainers. Stainless-steel (SS) retainers and everStick Ortho (EST) were used as control groups. The retainers were evaluated with Raman spectroscopy and bonded to bovine teeth. The samples were fatigued under cyclic loading (120,000 cycles) followed by static load testing. The failure behavior was evaluated under an optical microscope and scanning electron microscope. The strain growth on the orthodontic retainers was assessed (48h and 168h) by an adhesion test using Staphylococcus aureus and Candida albicans. The characteristic peaks of resin and glass fibers were observed, and the debonding force results showed a significant difference among all of the groups. SS retainers showed the highest bonding force, whereas nHA/EG retainers showed a non-significant difference from EG and EST retainers. SS retainers’ failure mode occurred mainly at the retainer–composite interface, while breakage occurred in glass-fiber-based retainers. The strains’ adhesion to EST and EG was reduced with time. However, it was increased with nHA/EG. Fabrication of nHA/EG retainers was successfully achieved and showed better debonding force compared to other glass-fiber-based groups, whereas non-linear behavior was observed for the strains’ adhesion.

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Antibacterial activity and debonding force of different lingual retainers bonded with conventional composite and nanoparticle containing composite: An in vitro study

Cited by 12 publications

References 23 publications

Shear Bond Strength of Four Types of Orthodontic Retainers after Thermocycling and Cyclic Loading

Shear Bond Strength of Four Types of Orthodontic Retainers after Thermocycling and Cyclic Loading

Comparative Antibacterial Efficacy of Orthodontic Brackets Coated with Titanium Dioxide, Copper Oxide, and Hydroxyapatite-Silver Nanoparticles Against Streptococcus mutans

Preparation of Nano-Apatite Grafted Glass-Fiber-Reinforced Composites for Orthodontic Application: Mechanical and In Vitro Biofilm Analysis

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