Melatonin as a Root Canal
Medicament
• An Emerging Biomolecule in Endodontics
• Presented by: Richa Ranjan
• Department of Conservative Dentistry &
Endodontics
Introduction to Melatonin
• • Naturally occurring hormone (N-acetyl-5-
methoxytryptamine)
• • Secreted by pineal gland
• • Known for regulating sleep-wake cycle
• • Recent interest in dentistry: anti-
inflammatory, antioxidant, regenerative
properties
Why Consider Melatonin in
Endodontics?
• • Inflammation modulation
• • Antioxidant potential
• • Promotes tissue healing
• • Biocompatible
• • Comparable effects to MTA in pulp-capping
models
Formulations Studied
• Application | Form | Study Model
• --------------------------------------
• Final Irrigant | 0.2% melatonin | Extracted
human teeth
• Intracanal medicament | Mixed with Ca(OH)₂
| In vitro
• Systemic for AP | Injection | Rat model
• Pulp capping | Topical gel/tablet | Rat molars
Study 1 – Irrigant Effect
• • Title: Melatonin as an irrigation solution to
enhance sealer adhesion
• • Source: ResearchGate, 2019
• • 0.2% melatonin used after NaOCl
• • Tested with AH-Plus sealer
• • Result: Higher push-out bond strength in
coronal & middle thirds
Study 2 – Animal Model
• • Title: Melatonin for Apical Periodontitis in
Rats
• • Source: Wiley Online Library
• • Induced AP in rats
• • Systemic melatonin given
• • Result: Reduced inflammatory lesion size
and enhanced healing
Study 3 – Melatonin in Pulp
Therapy
• • Source: MDPI / PMC
• • Pulp capping with melatonin
• • Comparable to MTA in dentin bridge
formation
• • Enhanced pulp vitality
• • Reduced cytokines: TNF α, IL 1β, MMP 2
‑ ‑ ‑
Proposed Mechanism of Action
• Melatonin Acts via:
• • ↓ Reactive oxygen species (ROS)
• • ↓ Pro-inflammatory cytokines
• • ↑ Growth factors (TGF-β1)
• • ↑ Osteogenic activity
• • Promotes dentin-pulp complex healing
Potential Research Directions
• • As intracanal medicament
• • Combined with Ca(OH)₂ or CHX
• • As root canal sealer additive
• • Long-term in vivo outcomes
• • Effect against E. faecalis and C. albicans
Conclusion
• • Melatonin shows promising results in
endodontic applications
• • Safe, biocompatible, and anti-inflammatory
• • Needs further clinical validation
• • Can be a future biomolecule for regenerative
endodontics
References
• 1. ResearchGate – Melatonin as irrigation
solution – 2019
• 2. Wiley – Melatonin in apical periodontitis –
2022
• 3. MDPI/PMC – Melatonin in pulp therapy –
2020
• 4. Çelik B et al. Int Endod J – 2021
Thank You
• Any Questions?
• Richa Ranjan | MDS Endodontics
• Department of Conservative Dentistry &
Endodontics

Melatonin_as_Root_Canal_Medicahhment.pptx

  • 1.
    Melatonin as aRoot Canal Medicament • An Emerging Biomolecule in Endodontics • Presented by: Richa Ranjan • Department of Conservative Dentistry & Endodontics
  • 2.
    Introduction to Melatonin •• Naturally occurring hormone (N-acetyl-5- methoxytryptamine) • • Secreted by pineal gland • • Known for regulating sleep-wake cycle • • Recent interest in dentistry: anti- inflammatory, antioxidant, regenerative properties
  • 3.
    Why Consider Melatoninin Endodontics? • • Inflammation modulation • • Antioxidant potential • • Promotes tissue healing • • Biocompatible • • Comparable effects to MTA in pulp-capping models
  • 4.
    Formulations Studied • Application| Form | Study Model • -------------------------------------- • Final Irrigant | 0.2% melatonin | Extracted human teeth • Intracanal medicament | Mixed with Ca(OH)₂ | In vitro • Systemic for AP | Injection | Rat model • Pulp capping | Topical gel/tablet | Rat molars
  • 5.
    Study 1 –Irrigant Effect • • Title: Melatonin as an irrigation solution to enhance sealer adhesion • • Source: ResearchGate, 2019 • • 0.2% melatonin used after NaOCl • • Tested with AH-Plus sealer • • Result: Higher push-out bond strength in coronal & middle thirds
  • 6.
    Study 2 –Animal Model • • Title: Melatonin for Apical Periodontitis in Rats • • Source: Wiley Online Library • • Induced AP in rats • • Systemic melatonin given • • Result: Reduced inflammatory lesion size and enhanced healing
  • 7.
    Study 3 –Melatonin in Pulp Therapy • • Source: MDPI / PMC • • Pulp capping with melatonin • • Comparable to MTA in dentin bridge formation • • Enhanced pulp vitality • • Reduced cytokines: TNF α, IL 1β, MMP 2 ‑ ‑ ‑
  • 8.
    Proposed Mechanism ofAction • Melatonin Acts via: • • ↓ Reactive oxygen species (ROS) • • ↓ Pro-inflammatory cytokines • • ↑ Growth factors (TGF-β1) • • ↑ Osteogenic activity • • Promotes dentin-pulp complex healing
  • 9.
    Potential Research Directions •• As intracanal medicament • • Combined with Ca(OH)₂ or CHX • • As root canal sealer additive • • Long-term in vivo outcomes • • Effect against E. faecalis and C. albicans
  • 10.
    Conclusion • • Melatoninshows promising results in endodontic applications • • Safe, biocompatible, and anti-inflammatory • • Needs further clinical validation • • Can be a future biomolecule for regenerative endodontics
  • 11.
    References • 1. ResearchGate– Melatonin as irrigation solution – 2019 • 2. Wiley – Melatonin in apical periodontitis – 2022 • 3. MDPI/PMC – Melatonin in pulp therapy – 2020 • 4. Çelik B et al. Int Endod J – 2021
  • 12.
    Thank You • AnyQuestions? • Richa Ranjan | MDS Endodontics • Department of Conservative Dentistry & Endodontics