Comparative evaluation of bacterial colonization on removable dental prostheses in patients with COVID-19: A clinical study

Karimzadeh, Fazel; Sajedi, Seyed Masoud; Taram, Saman; Karimzadeh, Fathemeh

doi:10.1016/j.prosdent.2021.04.020

Cited by 9 publications

(9 citation statements)

References 13 publications

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“…All these conditions have been shown in previous research to have the ability to impact the colonization of microorganisms, which may have in uenced the results of this study. 29,30,31 However, our ndings showed robust evidence that denture treatment in edentulous patients is associated with signi cant changes in the level of oral microorganisms.…”

Section: Discussionmentioning

confidence: 58%

Evaluation of Red-Complex Bacteria Loads in Complete Denture Patients

Veseli

Staka²,

Tovani‐Palone³

2022

Preprint

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Objective To evaluate red-complex bacteria (RCB) loads in edentulous patients, before and after dentures’ insertion. Materials and Methods Thirty patients were included in the study. Deoxyribonucleic acid (DNA) isolated from bacterial samples were obtained from the dorsum of the tongue before and 3 months after complete dentures (CDs) insertion in order to identify the presence of RCB (Tannerella forsythia, Porphyromonas gingivalis, and Treponema denticola) and quantify their loads, using real-time polymerase chain reaction (RT-PCR). Bacterial loads were represented as “Lg (genome equivalents/sample)” and the data classified according to the “ParodontoScreen” test. Results Significant changes in bacterial loads were observed before and 3 months after the CDs insertion for Porphyromonas gingivalis (0.40 ±0.90 vs 1.29 ±1.64, p = 0.0007), Tannerella forsythia (0.36 ±0.94 vs 0.87 ±1.45, p = 0.005), and Treponema denticola (0.11 ±0.41 vs 0.33 ±0.75, p = 0.03). Before the CDs insertion, all patients had a normal bacterial prevalence range (100%) for all analyzed bacteria. Three months after the insertion, 2 (6.7%) of them had a moderate bacterial prevalence range for Porphyromonas gingivalis, while 28 (93.3%) had a normal bacterial prevalence range. Conclusion The use of CDs has a significant impact on increasing RCB loads in edentulous patients.

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Section: Discussionmentioning

confidence: 58%

Evaluation of Red-Complex Bacteria Loads in Complete Denture Patients

Veseli

Staka²,

Tovani‐Palone³

2022

Preprint

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“…A limitation of the present study is the inclusion of smokers and diabetes patients, as well as the fact that the study was carried out during the coronavirus disease 2019 pandemic. All these conditions have been shown in previous research to have the ability to impact the colonization of microorganisms, which may have influenced the results of this study [ 29 – 31 ].…”

Section: Discussionmentioning

confidence: 91%

Evaluation of red-complex bacteria loads in complete denture patients: a pilot study

2023

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Objective This pilot study aimed to evaluate red-complex bacteria (RCB) loads in edentulous patients, before and after dentures’ insertion. Materials and methods Thirty patients were included in the study. Deoxyribonucleic acid (DNA) isolated from bacterial samples were obtained from the dorsum of the tongue before and 3 months after complete dentures (CDs) insertion in order to identify the presence of RCB (Tannerella forsythia, Porphyromonas gingivalis, and Treponema denticola) and quantify their loads, using real-time polymerase chain reaction (RT-PCR). Bacterial loads were represented as “Lg (genome equivalents/sample)” and the data classified according to the “ParodontoScreen” test. Results Significant changes in bacterial loads were observed before and 3 months after the CDs insertion for: P. gingivalis (0.40 ± 0.90 vs 1.29 ± 1.64, p = 0.0007), T. forsythia (0.36 ±0.94 vs 0.87 ± 1.45, p = 0.005), and T. denticola (0.11 ± 0.41 vs 0.33 ± 0.75, p = 0.03). Before the CDs insertion, all patients had a normal bacterial prevalence range (100%) for all analyzed bacteria. Three months after the insertion, 2 (6.7%) of them had a moderate bacterial prevalence range for P. gingivalis, while 28 (93.3%) had a normal bacterial prevalence range. Conclusion The use of CDs has a significant impact on increasing RCB loads in edentulous patients.

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“…Higher rates of bacterial colonization, especially with Streptococcus species and Klebsiella pneumonia , were detected in oral samples and on removable dental prostheses after COVID-19 infection [ 102 ]. There are no data on the contamination of dental impression and the virus survival, but the saliva contamination, comparable to nasopharyngeal specimens, suggests the possibility of viral bioburden in addition to bacterial and yeast ones [ 103 ].…”

Section: Resultsmentioning

confidence: 99%

Pros and Cons of CAD/CAM Technology for Infection Prevention in Dental Settings during COVID-19 Outbreak

Barenghi

Garagiola

et al. 2021

Sensors

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The purpose of this commentary is to update the evidence reported in our previous review on the advantages and limitations of computer-aided design/computer-aided manufacturing technology in the promotion of dental business, as well as to guarantee patient and occupational safety. The COVID-19 pandemic led to an unprecedented focus on infection prevention; however, waves of COVID-19 follow one another, asymptomatic cases are nearly impossible to identify by triage in a dental setting, and the effectiveness of long-lasting immune protection through vaccination remains largely unknown. Different national laws and international guidelines (mainly USA-CDC, ECDC) have often brought about dissimilar awareness and operational choices, and in general, there has been very limited attention to this technology. Here, we discuss its advantages and limitations in light of: (a) presence of SARS-CoV-2 in the oral cavity, saliva, and dental biofilm and activation of dormant microbial infections; (b) the prevention of SARS-CoV-2 transmission by aerosol and fomite contamination; (c) the detection of various oral manifestations of COVID-19; (d) specific information for the reprocessing of the scanner tip and the ward from the manufacturers.

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Comparative evaluation of bacterial colonization on removable dental prostheses in patients with COVID-19: A clinical study

Cited by 9 publications

References 13 publications

Evaluation of Red-Complex Bacteria Loads in Complete Denture Patients

Evaluation of Red-Complex Bacteria Loads in Complete Denture Patients

Evaluation of red-complex bacteria loads in complete denture patients: a pilot study

Pros and Cons of CAD/CAM Technology for Infection Prevention in Dental Settings during COVID-19 Outbreak

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