Formulation and assessment of biological properties of garcinia indica fruit extract mouthrinse as an adjunct to oral hygiene regimen: an in vitro analysis

J Appl Oral Sci. 2024 Jun 10:32:e20230291. doi: 10.1590/1678-7757-2023-0291. eCollection 2024.

Abstract

The prevalence of gingivitis is substantial within the general population, necessitating rigorous oral hygiene maintenance.

Objective: This study assessed a Garcinia indica (GI) fruit extract-based mouthrinse, comparing it to a 0.1% turmeric mouthrinse and a 0.2% Chlorhexidine (CHX) mouthrinse. The evaluation encompassed substantivity, staining potential, antimicrobial efficacy and cytocompatibility.

Methodology: The study employed 182 tooth sections. For antimicrobial analysis, 64 extracted human teeth coated with a polymicrobial biofilm were divided into four groups, each receiving an experimental mouthrinse or serving as a control group with distilled water. Microbial reduction was assessed through colony forming units (CFU). Substantivity was evaluated on 54 human tooth sections using a UV spectrophotometer, while staining potential was examined on 64 tooth sections. Cytocompatibility was tested using colorimetric assay to determine non-toxic levels of 0.2% GI fruit extract, 0.1% Turmeric, and 0.2% CHX.

Results: Data were analysed with one-way ANOVA (α=0.05). Cell viability was highly significant (p<0.001) in the 0.2% GI group (64.1±0.29) compared to 0.1% Turmeric (40.2±0.34) and 0.2% CHX (10.95±1.40). For antimicrobial activity, both 0.2% GI (20.18±4.81) and 0.2% CHX (28.22±5.41) exhibited no significant difference (P>0.05) at end of 12 hours. However, 0.1% Turmeric showed minimal CFU reduction (P<0.001). Substantivity results at 360 minutes indicated statistically significant higher mean release rate in 0.1%Turmeric (12.47±5.84 ) when compared to 0.2% GI (5.02±3.04) and 0.2% CHX (4.13±2.25) (p<0.001). The overall discoloration changes (∆E) were more prominent in the 0.2% CHX group (18.65±8.3) compared to 0.2% GI (7.61±2.4) and 0.1% Turmeric (7.32±4.9) (P<0.001).

Conclusion: This study supports 0.2% GI and 0.1% Turmeric mouth rinses as potential natural alternatives to chemical mouth rinses. These findings highlight viability of these natural supplements in oral healthcare.

Publication types

  • Evaluation Study

MeSH terms

  • Analysis of Variance
  • Anti-Infective Agents, Local / pharmacology
  • Biofilms* / drug effects
  • Cell Survival / drug effects
  • Chlorhexidine* / pharmacology
  • Colony Count, Microbial
  • Colorimetry
  • Curcuma* / chemistry
  • Fruit* / chemistry
  • Garcinia* / chemistry
  • Humans
  • Materials Testing
  • Mouthwashes* / pharmacology
  • Oral Hygiene* / methods
  • Plant Extracts* / pharmacology
  • Reproducibility of Results
  • Spectrophotometry, Ultraviolet
  • Time Factors

Substances

  • Plant Extracts
  • Mouthwashes
  • Chlorhexidine
  • Anti-Infective Agents, Local
  • turmeric extract