Influence of contemporary ceramo-metallic crown decontamination on the surface roughness, color stability, and disinfection. An in vitro analysis

• Published in: Photodiagnosis and photodynamic therapy Vol. 41; p. 103256
• Main Authors: Alshahrani, Abdullah, Alhamdan, Eman M, Alsahhaf, Abdulaziz, Shafqat, Shaheryar, Kumari, Ujala, Alyahya, Abdulaziz M, Abduljabbar, Tariq
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 01-03-2023
• Subjects: Anti-Infective Agents; Color; Decontamination; Disinfectants; Disinfection - methods; Escherichia coli; Indocyanine green photosensitizer; Materials Testing; Metal-ceramic crown; Morinda citrofolia; NaOCl; Photochemotherapy - methods; Photodynamic Therapy; Photosensitizing Agents; Sapindus mukorossi; surface roughness; Sapindus mukorossi; Morinda citrofolia; Decontamination; color; Metal-ceramic crown; Indocyanine green photosensitizer; Photodynamic Therapy; NaOCl; surface roughness
• ISSN: 1572-1000; 1873-1597
• DOI: 10.1016/j.pdpdt.2022.103256

•The highest antimicrobial efficacy for metallic ceramic crown decontamination was unveiled by morinda citrofolia.•The lowest disinfection efficacy was revealed by group 4 sterilized with 2% NaOCl.•Metaloceeramic crown decontamination with morinda citrofolia and sapindus masrossi substantiated equivalent antimicrobial efficacy with no color change and surface roughness.
To assess the antimicrobial effects, surface roughness (Ra), and color change (ΔE) of Morinda Citrofolia, Sapindus Mukorossi, Indocyanine green photosensitizer, and 2% NaOCl on metal ceramic crown colonized with C. Albicans, S aureus, S. mutans, and E. coli.
An aggregate of 40 (n = 10 each) Ni/Cr metal-ceramic crowns were fabricated and inoculated with the American Type Culture Collection (ATCC) of varied microbial colonies colonized by C. Albicans, S aureus, S. mutans, and E. coli. After inoculation, specimens were exposed to four different types of disinfection methods i.e. group 1: MC, group 2: SM, group 3:ICGP, and group 4 2% NaOCl respectively to evaluate antimicrobial efficacy, Ra, and color change. Later, the microbial assay was performed and expressed as CFU/ml (log 10). Ra was assessed using a surface analyzer and color change ΔE was evaluated using a spectrophotometer Statistical analysis was performed by using two-way ANOVA and Post HocTukey's test maintaining a significance level of p less than 0.05.
The highest antimicrobial efficacy for metallic-ceramic crown decontamination against all inspected microbial colonies was unveiled by group 1: MC, whereas the lowest disinfection efficacy was revealed by group 4 sterilized with 2% NaOCl (control). Metallic ceramic crown decontamination with MC and SM substantiated equivalent antimicrobial efficacy in plummeting CFU/mL (log10) of C.Albicans, S aureus, S.mutans, and E. coli (p>0.05). However, ICGP as a crown disinfectant validated antimicrobial efficacy significantly less compared to MC and SM (p<0.05). Ra was assessed post-disinfection with no changes observed (p>0.05) among all groups. Similarly, ΔE was significantly higher in crowns disinfected with ICGP (p<0.05)
Metallic ceramic crown decontamination using herbal disinfectants Morinda Citrofolia and Sapindus Mukorossi exhibited favorable antimicrobial efficacies against microbial colonies of C. albicans, S aureus, S.mutans, and E. coli with no changes in surface roughness and color.