International Journal of Clinical Pediatric Dentistry

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VOLUME 15 , ISSUE 5 ( September-October, 2022 ) > List of Articles


Comparative Evaluation of Bacterial Colonization Color Stability and Halitosis of Oral Appliances Fabricated Using Cold Cure Acrylics, Heat Cure Acrylics and Thermoforming Sheets: An In Vivo Study

Lakshmi Madhuri, Ravindar Puppala, Chadak Vibha

Keywords : Color stability, Erkodur, Erkodur–bz, Halitosis, Thermoforming sheets

Citation Information : Madhuri L, Puppala R, Vibha C. Comparative Evaluation of Bacterial Colonization Color Stability and Halitosis of Oral Appliances Fabricated Using Cold Cure Acrylics, Heat Cure Acrylics and Thermoforming Sheets: An In Vivo Study. Int J Clin Pediatr Dent 2022; 15 (5):499-503.

DOI: 10.5005/jp-journals-10005-2428

License: CC BY-NC 4.0

Published Online: 30-01-2023

Copyright Statement:  Copyright © 2022; The Author(s).


Aim: Removable oral appliances form an integral part of interceptive orthodontic procedures. Bacterial colonization leading to halitosis and poor color stability are the major disadvantages of the same in spite of patient acceptability. The aim of the present study was to evaluate bacterial colonization, color stability, and halitosis from the oral appliances fabricated using cold cure, cold cure under pressure pot, heat cure acrylics, thermoforming sheet, Erkodur and antibacterial thermoforming sheet, Erkodur–bz. Materials and methods: A group of 40 children was divided into five groups and the appliances were delivered. Bacterial colonization and halitosis were evaluated before giving the appliance to the patient after 1 and 2 months. Color stability was evaluated before giving the appliance to the patient and then after 2 months. This study was designed as a single-blinded randomized clinical trial. Results: Results have shown that after 1 and 2 months, bacterial colonization was higher from the appliances fabricated with cold cure and was lower for the Erkodur group, which was statistically significant. Color stability was more from the appliances fabricated with Erkodur and was less for cold cure, which was statistically significant. Halitosis after 1 month was more from the appliances fabricated with cold cure and less from Erkodur group, which was statistically significant. After 2 months, halitosis was more from the cold cure group and less from Erkodur group, which was not statistically significant. Conclusion: Thermoforming sheet, Erkodur showed better results than other groups in terms of bacterial colonization, color stability, and halitosis. Clinical significance: When removable appliances are indicated for minor orthodontic tooth movement, Erkodur is preferable due to the advantages of easy fabrication and less bacterial colonization.

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  1. Rocha Filho R, de Paula LV, Costa VC, et al. Evaluation of residual monomer in autopolymerizing acrylic resins: spectroscopy analysis. Rev Dent Press Orthod Orthop Facial 2007;12(2):96–104.
  2. Decelis S, Camilleri S, Zahra EV, et al. The effect of NitrAdine on the Candida levels of maxillary removable appliances. Quintessence int 2012;43(3):239–245.
  3. Jagger DC, Harrison A, al-Marzoug K. Effect of the addition of poly (methyl methacrylate) beads on some properties of acrylic resin. Int J Prosthodont 2000;13(5):378–382.
  4. Pathak AK, Sharma DS. Biofilm associated microorganisms on removable oral orthodontic appliances in children in the mixed dentition. J Clin Pediatr Dent 2013;37(3):335–339. DOI: 10.17796/jcpd.37.3.92230h6256v8697t
  5. Li X, Kolltveit KM, Tronstad L, et al. Systemic diseases caused by oral infection. Clin Microbiol Rev 2000;13(4):547–558. DOI: 10.1128/CMR.13.4.547
  6. Sumi Y, Kagami H, Ohtsuka Y, et al. High correlation between the bacterial species in denture plaque and pharyngeal microflora. Gerodontology 2003;20(2):84–87. DOI: 10.1111/j.1741-2358.2003.00084.x
  7. Bjerklin K, Gärskog B, Rönnerman A. Proximal caries increment in connection with orthodontic treatment with removable appliances. Br J Orthod 1983;10(1):21–24. DOI: 10.1179/bjo.10.1.21
  8. Batoni G, Pardini M, Giannotti A, et al. Effect of removable orthodontic appliances on oral colonisation by mutans streptococci in children. Eur J Oral Sci 2001;109(6):388–392. DOI: 10.1034/j.1600-0722.2001.00089.x
  9. Jabur SF. Influence of removable orthodontic appliance on oral microbiological status. J Fac Med Baghdad 2008;50(2):199–211. DOI: 10.32007/jfacmedbagdad.5021281
  10. Paranhos Hde F, da Silva CH, Venezian GC, et al. Distribution of biofilm on internal and external surfaces of upper complete dentures: the effect of hygiene instruction. Gerodontology 2007;24(3):162–168. DOI: 10.1111/j.1741-2358.2007.00177.x
  11. Budtz-Jörgensen E, Theilade E. Regional variations in viable bacterial and yeast counts of 1-week-old denture plaque in denture-induced stomatitis. Scand J Dent Res 1983;91(4):288–295. DOI: 10.1111/j.1600-0722.1983.tb00818.x
  12. Eichenauer J, Serbesis C, Ruf S. Cleaning removable orthodontic appliances: a survey. J Orofac Orthop 2011;72(5):389–395. DOI: 10.1007/s00056-011-0043-2
  13. Domenyuk DA, Porfiriadis LE, Ivancheva EN. Microbial colonization of removable orthodontic appliances made of different base materials in children and adolescents. Archiv Euro Medica 2012;2(1):112–120.
  14. Faltermeier A, Rosentritt M, Müssig D. Acrylic removable appliances: comparative evaluation of different postpolymerization methods. Am J Orthod Dentofacial Orthop 2007;131(3):301.e16–e22. DOI: 10.1016/j.ajodo.2006.07.019
  15. Singh SV, Aggarwal P. Effect of tea, coffee and turmeric solutions on the colour of denture base acrylic resin: an in vitro study. J Indian Prosthodont Soc 2012;12(3):149–153. DOI: 10.1007/s13191-012-0122-0
  16. Regis RR, Zanini AP, Della Vecchia MP, et al. Physical properties of an acrylic resin after incorporation of an antimicrobial monomer. J Prosthodont 2011;20(5):372–379. DOI: 10.1111/j.1532-849X.2011.00719.x
  17. Subramanya JK, Muttagi S. In vitro color change of three dental veneering resins in tea, coffee and tamarind extracts. J Dent (Tehran) 2011;8(3):138–145.
  18. Bechir A, Pacurar M, Podariu AC, et al. Aesthetic importance of resin based dental materials used for orthodontic appliances. Materiale Plastice 2014;51(1):57–61.
  19. Austin AT, Basker RM. Residual monomer levels in denture bases. the effects of varying short curing cycles. Br Dent J 1982;153(12):424–426. DOI: 10.1038/sj.bdj.4804962
  20. Purnaveja S, Fletcher AM, Ritchie GM, et al. Colour stability of two self curing denture base materials. Biomaterials 1982;3(4):249–250. DOI: 10.1016/0142-9612(82)90029-1
  21. Goiato MC, Santos DM, Haddad MF, et al. Effect of accelerated aging on the microhardness and color stability of flexible resins for dentures. Braz Oral Res 2010;24(1):114–119. DOI: 10.1590/s1806-83242010000100019
  22. Goldberg S, Cardash H, Browning H 3rd, et al. Isolation of enterobacteriaceae from the mouth and potential association with malodor. J Dent Res 1997;76(11):1770–1775. DOI: 10.1177/00220345970760110801
  23. Babacan H, Sokucu O, Marakoglu I, et al. Effect of fixed appliances on oral malodor. Am J Orthod Dentofacial Orthop 2011;139(3):351–355. DOI: 10.1016/j.ajodo.2009.03.055
  24. Verran J. Malodour in denture wearers: an ill-defined problem. Oral Dis 2005;11(1):24–28. DOI: 10.1111/j.1601-0825.2005.01083.x
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