Sterilizing elastomeric chains without losing mechanical properties. Is it possible?

Pithon, Matheus Melo; Ferraz, Caio; Rosa, Francine Cristina Silva; Rosa, Luciano Pereira

doi:10.1590/2176-9451.20.3.096-100.oar

Cited by 9 publications

(8 citation statements)

References 14 publications

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“…In addition, reusing tried-in orthodontic bands, orthodontic brackets, elastomeric chains, tungsten carbide debonding burs, miniscrews, orthodontic markers, and photographic retractors without proper sterilization and disinfection are tremendous potential hazards. [41][42][43][44][45] Orthodontic instruments that come in direct contact with patients' saliva and blood, including band seaters, band removers, scalers, and ligature directors are considered contamination dangers as well. 25 Improper handling and disinfection of such instruments and supplies would compromise infection control measures within the orthodontic practice.…”

Section: Risk Of Disease Transmission Within the Orthodontic Practicementioning

confidence: 99%

Precautions and recommendations for orthodontic settings during the COVID-19 outbreak: A review

Turkistani

2020

American Journal of Orthodontics and Dentofacial Orthopedics

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Introduction: Coronavirus disease 2019 (COVID-19) is a contagious disease caused by severe acute respiratory syndrome coronavirus (SARS-CoV-2). It emerged as a global pandemic in early 2020, affecting more than 200 countries and territories. The infection is highly contagious, with disease transmission reported from asymptomatic carriers, including children. It spreads through person-to-person contact via aerosol and droplets. The practice of social distancing-maintaining a distance of 1-2 m or 6 ft-between people has been recommended widely to slow or halt the spread. In orthodontics, this distance is difficult to maintain, which places orthodontists at a high risk of acquiring and transmitting the infection. The objective of this review is to report to orthodontists on the emergence, epidemiology, risks, and precautions during the disease crisis. This review should help increase awareness, reinforce infection control, and prevent cross-transmission within the orthodontic facility. Methods: A comprehensive literature review of English and non-English articles was performed in March 2020 using COVID-19 Open Research Dataset (CORD-19 2020), PubMed, MEDLINE, Scopus, and Google Scholar to search for infection control and disease transmission in orthodontics. Results: This review emphasizes minimizing aerosol production and reinforcing strict infection control measures. Compliance with the highest level of personal protection and restriction of treatment to emergency cases is recommended during the outbreak. Surface disinfection, adequate ventilation, and decontamination of instruments and supplies following the guidelines are required. Conclusions: Reinforcing strict infection control measures and minimizing personal contact and aerosol production are keys to prevent contamination within orthodontic settings. Although no cases of COVID-19 cross-transmission within a dental facility have been reported, the risk exists, and the disease is still emerging. Further studies are required.

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Section: Risk Of Disease Transmission Within the Orthodontic Practicementioning

confidence: 99%

Precautions and recommendations for orthodontic settings during the COVID-19 outbreak: A review

Turkistani

2020

American Journal of Orthodontics and Dentofacial Orthopedics

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“…Evangelista, Berzins, and Monaghan 19 exposed elastics to a disinfectant solution for an hour or more, by which time the strength decreased. Pithon et al 21 did not find any changes in the mechanical properties of elastics after undergoing different forms of sterilization. The majority of studies evaluated the use of glutaraldehyde solutions that are no longer used today due to the associated cytotoxic effects.…”

Section: Discussionmentioning

confidence: 90%

“…21,22 Mattos 22 states that, despite being non-toxic and effective against microorganisms, peracetic acid has a negative effect on elastic properties, increasing plastic deformation, and concluding that the ideal would be an autoclaving cycle as prior sterilization of elastics. Pithon et al 21 also evaluated peracetic acid. However, as previously mentioned, they did not find changes in the mechanical properties of the elastics.…”

Section: Discussionmentioning

confidence: 99%

Biosafety conducts adopted by orthodontists

Monteiro

Martins

Cury-Saramago

et al. 2018

Dental Press J. Orthod.

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Objective: This cross-sectional observational study was designed to assess the biosafety conducts adopted by orthodontists, and possible differences regarding training time. Methods: Both the application of methods for sterilization/disinfection of instruments and materials, and the use of personal protective equipment (PPE) were collected through questionnaires via e-mail. Results: The questionnaires were answered by 90 orthodontists with a mean age of 37.19 ± 9.08 years and mean training time of 13.52 ± 6.84 years. Regarding orthodontic pliers, 63.23% use an autoclave, except 1 who does not perform any procedure. All participants use autoclave to sterilize instruments, and 95.6% of respondents perform cleaning with chemicals prior to sterilization. Most of them (65.56%) use an autoclave to sterilize orthodontic bands, with some still associating disinfection methods, while few (18.89%) do nothing at all. There was a high incidence of the answer “nothing” for the methods used for elastic, accessories, bandages, metal springs, and arches. All respondents use mask and gloves in attendance, 78.92% use aprons, 58.92% use protective goggles, and 50.01% use cap. Training time significantly influenced (p = 0.003) only the use of glutaraldehyde for sterilization/disinfection of pliers. Conclusions: The sterilization and cleaning of pliers, instruments, and bands, besides the use of PPE, received more uniform and positive responses, while other items suggest disagreements and possible failures. Only orthodontists trained for more than 13 years choose using glutaraldehyde for pliers sterilization/disinfection, the only adopted method with a significant difference in relation to training time.

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“…Pithon MM et al found that except for the ultraviolet method, all other methods promoted sterilization of elastomeric chains; no sterilization methods led to a loss of elastomeric chains mechanical properties. 15 The application of Ni-Ti coil springs has been popular in the fixed orthodontic treatment.…”

Section: Discussionmentioning

confidence: 99%

Evaluating the sterility of orthodontic materials as received from the manufacturer and that exposed to clinic environment - in vitro study

Musaddique

Kalia

Hegde

et al. 2018

sejodr

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Introduction: Sterilization in orthodontics has been discussed and stressed over times in the dental literature. Sterility of orthodontic materials should be of prime interest to the orthodontist as a health care professional and he should take appropriate measures to prevent the risk of cross infection.Aim: To evaluate the sterility of orthodontic materials as received from the manufacturer and that exposed to clinic environment for 6 months. Materials and methods:The sterility of orthodontic materials "as received" from the manufacturer and "clinically exposed" (unused materials stored in the clinic environment for a period of 6 months) was microbiologically evaluated (universal & conventional PCR).The materials which were included in this study were the sealed and unsealed orthodontic archwires, molar bands, elastomeric module, stainless steel bracket, coil spring and tungsten carbide burs of various brands (American Orthodontics, 3M Unitek, Ormco, Orthosystems, G&H, Modern Orthodontics, SS white etc).Results: After universal and conventional PCR, the detection of micro-organisms in all materials was significantly higher in the clinically exposed samples compared to as received samples from manufacturers (P <0.001). The detection of micro-organisms in all orthodontic wires is significantly higher in the unsealed samples compared to sealed samples (P <0.001). In universal PCR, the detection of microorganisms in all materials (Coil spring, E-chain, Elastomeric, Molar brands, Tungsten carbide) except for SS brackets is significantly higher in both as received and clinically exposed samples. Conclusion:After universal and conventional PCR, we conclude that bacteria were present on almost all orthodontic materials "as received from the manufacturers" and that exposed to a clinical environment. Therefore all materials should be sterilized before use in patients. 13 South Eur J Orthod Dentofac Res Musaddique SS. et al. Evaluating the sterility of orthodontic materials

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Sterilizing elastomeric chains without losing mechanical properties. Is it possible?

Cited by 9 publications

References 14 publications

Precautions and recommendations for orthodontic settings during the COVID-19 outbreak: A review

Precautions and recommendations for orthodontic settings during the COVID-19 outbreak: A review

Biosafety conducts adopted by orthodontists

Evaluating the sterility of orthodontic materials as received from the manufacturer and that exposed to clinic environment - in vitro study

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