Céline Lévesque Faculty of Dentistry University of Toronto
2 protocols

Marcus Cheng Faculty of Dentistry University of Sydney
1 protocol

Siew-Ging Gong
  • Associate Professor, Dentistry University of Toronto
Research focus
  • Molecular biology
  • 1 Author merit


PhD, 1995


1. Dufour D, Barbour A, Chan Y, Cheng M, Rahman T, Thorburn M, Stewart C, Finer Y, Gong S-G, Lévesque CM (2020). Genetic analysis of mutacin B-Ny266, a lantibiotic active against caries pathogens. J Bacteriology, March DOI: 10.1128/JB.00762-19
2. Ko-Adams C, Cioffi I, Dufour D, Nainar SMH, Lévesque CM, Gong SG (2020). Short-term effects of fixed orthodontic appliance on concentrations of mutans streptococci and persister cells in adolescents. Am J Orthod Dentofacial Orthop. 157(3):385-391.
3. Lamba GS, Dufour D, Nainar SMH, Cioffi I, Lévesque CM, Gong SG (2020). Association of Streptococcus mutans collagen binding genes with severe childhood caries. Clin Oral Investig. Jan 30. doi: 10.1007/s00784-020-03217-4. [Epub ahead of print]
4. Bottner A, He RY, Sarbu A, Nainar SMH, Dufour D, Gong SG, Lévesque CM (2020). Streptococcus mutans isolated from children with severe-early childhood caries form higher levels of persisters. Arch Oral Biol. 110:104601.
5. Gong SG, Chan Y, Lévesque CM (2019). Complete genome sequence of megaplasmid-bearing Streptococcus salivarius strain LAB813, Isolated from the dental plaque of a caries-free child. Microbiol Resour Announc. 2019 Oct 10;8(41).
6. Cerone M, el-Badrawy W, Gong S-G, Prakki A (2019). Bond strength of universal adhesives to orthodontic brackets. Journal of Canadian Dental Association Aug:85.
7. Barbour A, He R, Gong S-G, and Levesque C (2019). Complete genome sequence of Streptococcus mutans strain LAB761, which has a high-level of bacteriocin-like activity, isolated from a caries-active child in Canada". 8(2):e01483-18
8. Dufour, D., Mankovskaia, A., Chan, Y., Motavaze, K., Gong, S-G., Levesque, C (2018). A tripartite toxin-antitoxin module induced by quorum sensing is associated with the persistence phenotype in Streptococcus mutans. Molecular Oral Microbiology 1-10
9. Milligan MA, Arudchelvan Y, Gong S-G (2017). Effects of two wattages of low-level laser therapy on orthodontic tooth movement. Archives of Oral Biology 80:62-68.
10. Hibberd C, Bowdin S, Arudchelvan Y, Forrest C, Brakora K, Marcucio R, Gong S-G (2016). FGFR-associated craniosynostosis syndromes and gastrointestinal defects. American Journal of Medical Genetics A. 170(12):3215-3221.
11. Xu Y, Gong S-G, Li M, Zhu F, Xu B (2016). Conservative orthodontic fixed appliance management of pediatric mandibular bilateral condylar fracture. American Journal of Orthodontics and Dentofacial Orthopedics.150(1):181-7
12. Chung S.E.V., Tompson, B, Gong S-G (2015). The effect of light emitting diode phototherapy on the rate of orthodontic tooth movement: A clinical study. Journal of Orthodontics 42(4):274-283.
13. Chung SEV, Milligan M, Gong S-G (2015). Photobiomodulation as a modality to accelerate orthodontic tooth movement. Seminars in Orthodontics 21(3):195-202.
1 Protocol published
Rapid Isolation and Purification of Secreted Bacteriocins from Streptococcus mutans and Other Lactic Acid Bacteria
Authors:  Marcus Cheng, Siew-Ging Gong and Céline M. Lévesque, date: 11/20/2020, view: 110, Q&A: 0
Bacteriocins are small ribosomally synthesized antimicrobial peptides produced by some microorganisms including lactic acid bacteria (LAB), a group of Gram-positive bacteria (cocci, rods) expressing high tolerance for low pH. Bacteriocins kill ...
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