SAFE & EFFECTIVE TOOTH WHITENING

SAFE & EFFECTIVE TOOTH WHITENING

1. WHEN IS TOOTH WHITENING INDICATED?

✅ Indications for tooth whitening

• Extrinsic stains caused by tea, coffee, tobacco, red wine, etc.
• Age-related tooth discoloration (darkening of enamel and dentin over time)
• Mild to moderate yellowing with healthy enamel structure
• Patients with aesthetic demands who want a brighter smile
• Preparation before aesthetic treatments: veneers, crowns, anterior restorations
• Teeth with uniform color, no caries, no acute gingival inflammation

🚫 Contraindications / cases requiring caution

• Severe intrinsic discoloration (tetracycline staining, severe fluorosis)
• Untreated caries, cervical abrasion, cracked enamel (must be treated first)
• Pregnant or breastfeeding women (treatment should be postponed)
• Patients with severe, uncontrolled tooth sensitivity

2. WHY DOES TOOTH WHITENING CAUSE TOOTH SENSITIVITY? 

2.1. Mechanism of sensitivity during whitening

Professional in-office whitening often uses high-concentration Hydrogen Peroxide
(e.g. Pola Office: 35–37.5% Hydrogen Peroxide)

• Small molecules → rapidly penetrate enamel & dentin
• Reach dentinal tubules → stimulate fluid movement
• Activate odontoblast receptors and A-delta nerve fibers

👉 Sensitivity occurs during or after whitening due to:

• Temporary opening of dentinal tubules
  Free oxygen increases enamel permeability (reversible), especially in:
  • Cervical areas
  • Teeth with recession, abrasion, thin enamel
• Hydrodynamic theory (Brännström)
  Oxygen release, heat, and surface dehydration cause dentinal fluid movement → sharp pain
• Patient-related factors
  History of sensitivity, thin enamel, orthodontic treatment, enamel reduction, stress or anxiety (lower pain threshold)

2.2. Solutions to minimize sensitivity effectively

✅ A. Before whitening (MOST IMPORTANT)

• Careful screening
  Do NOT whiten if there is gingivitis, severe recession, exposed dentin, untreated caries, or enamel cracks
• Pre-treatment desensitization (7–14 days prior)
  Desensitizing agents:
  • Potassium Nitrate
  • Arginine
  • CPP-ACP
    👉 Instructions: Apply directly on teeth for 5–10 minutes/day

✅ B. During whitening

• Avoid prolonged exposure
  • Divide into 2–3 short cycles instead of one long cycle
• Reduce thermal stimulation
  • Do not place the light too close
  • Avoid high-power light for extended periods
• Protect cervical areas carefully
  • Apply thick gingival barrier
  • Optional: apply desensitizer before whitening gel

✅ C. After whitening (MANDATORY)

• Apply desensitizing agents immediately
  • Potassium Nitrate
  • Fluoride gel
  • ACP / CPP-ACP
• Avoid hot, cold, acidic foods and beverages for 48 hours
  • No hot or cold foods
  • No acidic foods, alcohol
  • No smoking
• Pain relief if needed: Paracetamol (for severe sensitivity)

2.3. Clinical experience

• Sensitivity usually peaks within the first 24 hours
• Resolves after 48–72 hours
• Rarely lasts longer than 5 days
• Does NOT damage the dental pulp when properly indicated

2.4. Conclusion

“Tooth sensitivity after whitening is a temporary physiological response caused by peroxide penetration through enamel and dentin.
It does NOT mean tooth damage or pulp necrosis and can be completely controlled with proper preparation and aftercare.”

3. SAFE & EFFECTIVE TOOTH WHITENING AT ANH DUNG DENTAL CLINIC

At Anh Dung Dental Clinic, professional tooth whitening is performed with modern technology, ensuring safety, effectiveness, and proper medical indication.

✅ Why choose tooth whitening at Anh Dung Dental Clinic?

• Professional whitening technology with authentic, high-quality materials
• Noticeable whitening results after just one session
• Minimal sensitivity – safe for enamel and gums
• Direct examination and treatment by experienced dentists
• Natural-looking tooth color, harmonious with facial aesthetics

🦷 Who is suitable for tooth whitening?

• Yellow or stained teeth due to coffee, tea, or smoking
• Age-related discoloration
• Patients preparing for photoshoots, weddings, or frequent communication

👉 Before whitening, the dentist carefully examines teeth and gums and proceeds only when absolute safety is ensured.

🌿 Our Commitment at Anh Dung Dental Clinic

• No overuse of whitening agents
• No damage to tooth enamel
• No pursuit of “artificial white” results
  ➡️ Priority on long-lasting results & long-term oral health

📍 ANH DUNG DENTAL CLINIC

📞 Hotline: 096 229 3115 – R1 Building / Swan Lake – Ecopark, Hung Yen
📞 Hotline: 0227 3782 782 – No. 54, 14/10 Street, Tien Hai, Hung Yen
📞 Hotline: 0227 384 0555 / 091 999 0980 – No. 34, Quang Trung Street, Tran Hung Dao Ward, Hung Yen

👨‍⚕️ Distinguished Physician, PhD, DDS, Specialist Level II – Vu Anh Dung
Direct consultation & treatment

👉 Contact us now for free consultation and safe professional tooth whitening!