Professional teeth whitening has become increasingly popular as dental aesthetics take center stage in today’s society.
While it is often considered a cosmetic procedure, it is essential to remember that teeth whitening is a medical treatment that must be performed under a dentist’s supervision for safety and efficacy.
In this guide, we’ll cover:
- What does professional teeth whitening involve?
- Types of professional teeth whitening.
- Benefits and risks associated with teeth whitening.
- Who is eligible for the procedure?
Let’s dive into the details!
What Is Professional Teeth Whitening?
Professional teeth whitening is a treatment designed to remove stains and discoloration from tooth enamel using safe and effective whitening agents such as hydrogen peroxide or carbamide peroxide. These chemicals break down stains, revealing a brighter smile.
Step-by-Step Process
- Dental Examination: Your dentist ensures your oral health is optimal and free of conditions like cavities or gum disease.
- Professional Cleaning: A thorough cleaning removes plaque and tartar buildup.
- Choose Whitening Type: Options include at-home kits, laser whitening, LED whitening, or a combination of methods.
- Customized Splints: For at-home whitening, custom-fitted molds hold the whitening gel.
- In-Office Whitening: The dentist applies a protective barrier to the gums before using a concentrated gel, often activated by light.
- Follow-Up Appointments: These ensure optimal results and monitor any side effects, like temporary sensitivity.
Types of Professional Teeth Whitening
Internal Whitening
- Used for non-vital teeth (e.g., teeth with root canals).
- Treats discoloration from within by applying a peroxide solution inside the tooth.
External Whitening
- Targets vital teeth for an overall brighter smile.
- Includes at-home kits, laser treatments, LED whitening, and mixed approaches.
Comparing Whitening Methods
1. At-Home Whitening
- Process: Wear custom-fitted splints filled with a whitening gel (10% peroxide).
- Duration: 6–8 hours daily for 2–4 weeks.
- Pros: Comfortable, effective, and gradual results.
- Cons: Requires consistency and more time compared to in-office treatments.
2. Laser Whitening
- Process: Apply a 35% peroxide gel activated by laser light.
- Duration: Immediate results in a single session (30–60 minutes).
- Pros: Fast and highly effective.
- Cons: Not recommended for sensitive teeth due to heat production.
3. LED Whitening
- Process: Similar to laser whitening but uses cold LED light, reducing sensitivity risks.
- Duration: Immediate results with sessions lasting an hour.
- Pros: Safe, efficient, and suitable for sensitive teeth.
4. Mixed Whitening
- Process: Combines at-home and in-office methods for enhanced results.
- Best For: Severely stained teeth requiring intensive treatment.
Benefits and Risks of Teeth Whitening
Benefits
- Brighter, whiter teeth.
- Enhanced confidence and self-esteem.
- Improved facial aesthetics.
- Encourages better oral hygiene habits.
Risks
- Tooth Sensitivity: Temporary and resolves within days.
- Gum Irritation: Avoidable with proper isolation during treatment.
- Enamel Weakening: Overuse or unsupervised whitening can harm enamel.
Over-the-Counter Whitening Products: Are They Worth It?
While convenient, many OTC whitening kits and strips lack the necessary concentration of whitening agents for noticeable results.
Some may even harm enamel or gums if misused. Professional supervision ensures safety and effectiveness, making in-office treatments the better choice.
Note: Teeth whitening that uses high concentrations of hydrogen peroxide or carbamide should always be carried out in the dental clinic and under the supervision of a dentist, since these chemical compounds are potentially dangerous for the oral mucosa, therefore, before applying the whitening gel on tooth enamel, an insulator should be applied to the gums to prevent them from coming into contact with the whitening agents.
Common Questions About Teeth Whitening
1. Is professional teeth whitening safe for sensitive teeth?
Yes, professional teeth whitening can be tailored to accommodate individuals with sensitive teeth. Dentists use lower-concentration whitening gels and may recommend desensitizing products before and after the treatment to minimize discomfort. LED whitening is often preferred for those prone to sensitivity, as it uses cold light, which is gentler on enamel.
2. Can professional teeth whitening remove deep stains caused by coffee and smoking?
Professional whitening is highly effective at removing both surface and deep stains caused by coffee, smoking, tea, or red wine. For severe discoloration, mixed treatments that combine at-home kits with in-office whitening provide optimal results. Regular maintenance and avoiding stain-causing foods can prolong the effects.
3. How does professional teeth whitening compare to over-the-counter teeth whitening strips?
- Professional Whitening: Offers customized treatments with stronger bleaching agents, delivering noticeable and longer-lasting results under the supervision of a dentist.
- Whitening Strips: Convenient and affordable but less effective, as the concentration of active ingredients is much lower. Additionally, improper usage can irritate gums or harm enamel.
4. Can teeth whitening damage my enamel?
No, professional teeth whitening is designed to be safe and will not damage enamel when performed under a dentist’s guidance. The active agents penetrate stains on the enamel but do not weaken or wear it down. However, overuse of whitening products or unregulated treatments can lead to enamel erosion.
5. What foods and drinks should I avoid after whitening?
To maintain results, avoid dark-colored and acidic foods for 48–72 hours after treatment. Examples include:
- Coffee, tea, and red wine.
- Berries like blueberries and blackberries.
- Tomato-based sauces and soy sauce.
- Sugary and carbonated drinks.
Opt for a “white diet” consisting of foods like rice, chicken, and dairy products during this period.
6. How many shades lighter can my teeth get with professional whitening?
The results depend on the original discoloration and the method used. On average:
- At-home kits: 2–4 shades lighter over 2–4 weeks.
- In-office whitening (e.g., LED or laser): Up to 8 shades lighter in a single session.
A consultation with your dentist can provide a realistic expectation based on your teeth condition.
7. Can whitening treatments whiten dental restorations like crowns or veneers?
No, teeth whitening does not affect crowns, veneers, fillings, or other dental restorations. These materials are non-porous and do not respond to bleaching agents. If your restorations are discolored, consult your dentist about replacement or polishing options for a uniform smile.
8. How often can I whiten my teeth professionally?
Dentists typically recommend whitening treatments every 12–24 months. Over-whitening can lead to sensitivity or enamel erosion. Maintenance appointments and touch-ups using dentist-approved products can help extend results without overdoing treatments.
9. Can I whiten my teeth if I have gum disease or cavities?
No, whitening treatments should only be performed on healthy teeth and gums. Conditions like gum disease, periodontitis, cavities, or exposed roots must be treated first, as whitening agents can irritate inflamed tissues and worsen dental issues.
10. How long does professional teeth whitening last?
The longevity of your results depends on your lifestyle and oral hygiene habits. On average:
- Good oral hygiene: 1–3 years.
- Stain-causing habits (smoking, coffee, etc.): Results may last less than a year.
Dentists may recommend periodic touch-ups with at-home kits to maintain brightness.
11. Are there any alternatives to professional teeth whitening for brightening my smile?
If whitening isn’t suitable, alternatives include:
- Porcelain Veneers: Cover the front surface of teeth for a permanent, white appearance.
- Dental Bonding: Hides stains using tooth-colored composite resin.
- Professional Cleanings: Remove surface stains caused by plaque and tartar.
12. Does professional whitening help with yellow teeth caused by aging?
Yes, aging-related yellowing caused by thinning enamel and dentin exposure responds well to professional whitening. Your dentist may recommend a combination of in-office and at-home whitening treatments for optimal results.
Conclusion: Is Teeth Whitening Right for You?
Professional teeth whitening is a safe and effective way to enhance your smile when done under dental supervision. Whether you opt for at-home kits or in-office treatments, always consult a dentist to determine the best approach for your needs.