Comparative Evaluation of Two Bracket Systems’ Kinetic Friction: Conventional and Self-Ligating

Vartolomei, Aurel-Claudiu; Serbanoiu, Dan-Cosmin; Ghiga, Dana-Valentina; Moldovan, Mărioara; Cuc, Stanca; Pollmann, Maria Cristina Figueiredo

doi:10.3390/ma15124304

Cited by 8 publications

(4 citation statements)

References 41 publications

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“…Poor oral hygiene causes food residue deposits around the brackets and bonds which generate erosive compounds during the putrefaction process. Poor bonding technique will generate weaker adhesion of the bracket to the enamel and may generate local erosion [ 24 ]. Nutrition is very often associated with acidic food and drink ingestion.…”

Section: Discussionmentioning

confidence: 99%

Effects of Acidic Environments on Dental Structures after Bracket Debonding

Iosif

Cuc

Prodan

et al. 2022

IJMS

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Brackets are metallic dental devices that are very often associated with acidic soft drinks such as cola and energy drinks. Acid erosion may affect the bonding between brackets and the enamel surface. The purpose of this study was to investigate the characteristics of brackets’ adhesion, in the presence of two different commercially available drinks. Sixty human teeth were divided into six groups and bonded with either resin-modified glass ionomer (RMGIC) or resin composite (CR). A shared bond test (SBS) was evaluated by comparing two control groups with four other categories, in which teeth were immersed in either Coca-ColaTM or Red BullTM energy drink. The debonding between the bracket and enamel was evaluated by SEM. The morphological aspect correlated with SBS results showed the best results for the samples exposed to artificial saliva. The best adhesion resistance to the acid erosion environment was observed in the group of teeth immersed in Red BullTM and with brackets bonded with RMGIC. The debonded structures were also exposed to Coca-ColaTM and Red BullTM to assess, by atomic force microscopy investigation (AFM), the erosive effect on the enamel surface after debonding and after polishing restoration. The results showed a significant increase in surface roughness due to acid erosion. Polishing restoration of the enamel surface significantly reduced the surface roughness that resulted after debonding, and inhibited acid erosion. The roughness values obtained from polished samples after exposure to Coca-ColaTM and Red BullTM were significantly lower in that case than for the debonded structures. Statistical results evaluating roughness showed that Red BullTM has a more erosive effect than Coca-Cola™. This result is supported by the large contact surface that resulted after debonding. In conclusion, the prolonged exposure of the brackets to acidic drinks affected the bonding strength due to erosion propagation into both the enamel–adhesive interface and the bonding layer. The best resistance to acid erosion was obtained by RMGIC.

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Section: Discussionmentioning

confidence: 99%

Effects of Acidic Environments on Dental Structures after Bracket Debonding

Iosif

Cuc

Prodan

et al. 2022

IJMS

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“…To prevent degradation, the storage solution was refreshed at a minimum bi-monthly interval. The composition of the artificial saliva included disodium phosphate, sodium bicarbonate, calcium chloride, hydrochloric acid, and distilled water, with specific concentrations detailed in Table 1 [27], and it was prepared at the Raluca Ripan Institute for Research in Chemistry in Cluj Napoca, adhering to findings identified in other research studies [28]. To emulate in situ conditions, the teeth were anchored within a fixed plaster model.…”

Section: Methodsmentioning

confidence: 99%

Comparative Evaluation of Dental Enamel Microhardness Following Various Methods of Interproximal Reduction: A Vickers Hardness Tester Investigation

Serbanoiu,

Vartolomei,

Ghiga

et al. 2024

Biomedicines

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Interproximal enamel reduction, also known as stripping, is a common orthodontic procedure that reduces the mesiodistal diameter of teeth, allowing for a balance of available space in dental arches. The aim of this study was to assess the enamel surface microhardness resulting from the application of currently available methods for interproximal reduction. Forty-two extracted human permanent teeth were divided into six different groups, each subjected to a therapeutic stripping procedure using various methods (i.e., diamond burs, abrasive strips of 90 μm, 60 μm, 40 μm, and 15 μm, and abrasive discs). Stripping was performed by a single individual in accordance with the manufacturers’ recommendations for the various systems used. One of the proximal faces of the tooth underwent IPR, while the other side remained untreated for control. The hardness of the enamel surface was measured using a Vickers hardness tester. The control group achieved the hardest enamel surface (354.4 ± 41.02 HV1), while the lowest was observed for enamel surfaces treated with 90 µm abrasive strips (213.7 ± 118.6). The only statistically significant difference was identified in comparisons between the values measured for the control group and those obtained after stripping with diamond burs (p = 0.0159). Enamel microhardness varied depending on the stripping instrument used, but no statistically significant differences were found (p > 0.05). Optimal microhardness values, close to those of healthy enamel, were achieved after mechanical treatment with 15 µm abrasive strips and abrasive discs. Dental stripping is a safe therapeutic procedure that has a relatively minor influence on the microhardness of surface enamel.

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“…The significance level for the p -value was 0.05. The statistical analysis was accomplished in the demo version of GraphPad Prism utility program [ 32 ].…”

Section: Methodsmentioning

confidence: 99%

Comparative Evaluation of Two Bracket Systems’ Bond Strength: Conventional and Self-Ligating

et al. 2022

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Adhesion remains a key element in dentistry, whether approached in prosthetics, odontology, or orthodontics. It is a continuously researched aspect, as improved materials and adhesive methods keep emerging in the market. No orthodontic treatment can be effective without the proper adhesion strength of the bonded elements on the teeth. The objective of this research, in the broad context of self-ligating versus conventional brackets, was to compare active and passive self-ligating systems with a conventional one by conducting an in vitro study on human-extracted premolars. Shear bond strength tests were executed by means of an advanced materials-testing machine that generated maximum load and tensile strength values. The data obtained underwent statistical analysis with a statistical threshold of p < 0.05. The results regarding the statistical significance were acquired when comparing the passive self-ligating system with the active self-ligating and conventional systems (load-at-maximum-load mean 204.9, SD 91.09, and p < 0.05). In this study, the passive self-ligating bracket system appears to present increased shear bond strength.

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Comparative Evaluation of Two Bracket Systems’ Kinetic Friction: Conventional and Self-Ligating

Cited by 8 publications

References 41 publications

Effects of Acidic Environments on Dental Structures after Bracket Debonding

Effects of Acidic Environments on Dental Structures after Bracket Debonding

Comparative Evaluation of Dental Enamel Microhardness Following Various Methods of Interproximal Reduction: A Vickers Hardness Tester Investigation

Comparative Evaluation of Two Bracket Systems’ Bond Strength: Conventional and Self-Ligating

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