Everything I write is information, letters on a screen, not medical advice. I’m not a licensed Dentist but after this thread I may as well be one. All jokes aside, use this thread as part of your research, if you fuck yourself up I’m not to blame.Contents
- Professional Dental Bleaching
- Professional Custom Trays
- OTC Chemical Whiteners
- Whitening toothpastes
- Light & Laser systems
- Internal Tooth Bleaching
- Microabrasion and Enamel Abrasion
- Veneers, Crowns, Bonding
- DIY and natural remedies
- Safety Awareness
- Mythbuster
Introduction
- Extrinsic stains: Surface stains from coffee, tea, tobacco, wine, and others.
- Intrinsic stains: Deeper Stains within the enamel or dentin.
Professional Dental Bleaching
Info
High‑concentration peroxide gels applied by a dentist, commonly 25 - 40% hydrogen peroxide, some use similar strength carbamide peroxide converted to H2O2. Application is controlled and isolated. Sometimes with Light or Heat.
How it’s done
Address decay and/or gum issues.
Isolation: Rubber dam or Gingival Barrier to protect soft tissues.
Application of high concentration peroxide gel to the tooth surfaces.
Extras: LED, laser, or heat for 15 - 20 minute cycles, there can be several cycles per visit. Total chair time 30-90 minutes.
Post Op: Neutralisation Gel, Fluoride application, sensitivity management, and general advice will be provided.
Effectiveness
Quickest method; typically lightens the teeth up to 8 shades in one session depending on stain type and baseline colour. Results are immediate.
Risks
- Temporary dentinal hypersensitivity (common)
- Gingival irritation if barrier fails
- Less effective on intrinsic stains like tetracycline or severe fluorosis
When recommended
- Patients needing rapid improvement
- Heavy extrinsic staining
- Those unresponsive to OTC methods.
Professional Custom Trays
Info
Dentist makes impressions and makes custom fit trays; patients will use lower concentration peroxide gel (10-22% carbamide peroxide or 3-10% hydrogen peroxide) daily for specified hours or overnight.
How to use
- Dental exam and impressions.
- The dentist provides gel and fitted trays with instructions.
- Regular checkups are an option if anything of concern ends up occuring.
Effectiveness
Highly effective for both extrinsic and some intrinsic stains when used properly. Slower than in office but more gradual and with less sensitivity.
Risks
- Variable sensitivity
- Gum irritation from gel overflow.
OTC Chemical Whiteners
Types
- Whitening strips
- Whitening gels with generic trays
- Whitening pens
- Mouth rinses
- Prefilled disposable trays.
How to use
- Strips: apply to teeth for the time it tells you to on the packaging, apply it once or twice daily for 1 or 2 weeks
- Gels: apply with brush or trays as directed
- Rinses: use twice daily for 1 minute
- Pens: used as a quick touch up
Effectiveness
Will end with modest whitening, maybe 1-3 shades for extrinsic stains; results vary by concentration and contact time. Strips are often the most effective OTC option.
Risks
- Gingival irritation
- Sensitivity; poorer tray fit means gum contact is highly likely
- Uneven whitening
Whitening toothpastes
Info
It uses abrasive particles or chemical polishing agents to remove surface stains. Some include low level peroxide for gradual bleaching.
Use
Daily brushing with whitening toothpaste
Effectiveness
It improves surface stain, but this is of course is not effective for intrinsic stains. Toothpaste may brighten 0.5-1 shade over a few weeks for surface stains.
Risks
- Overly abrasive pastes can cause enamel erosion and increased sensitivity. This is a rare occurrence and for most people these toothpastes can be used everyday for your entire life.
Light & Laser Systems
Info
The theory is that adding LED, halogen, or laser light after gel application accelerates peroxide breakdown for faster whitening.
Some studies show modest benefits whilst others show no long term advantage. Light may increase immediate whitening but also sensitivity and heating risk if it isn't used properly.
Types of Light & Laser acceleration
- Home LED kits: low intensity LED devices paired with strips and/or gels; limited clinical evidence but small benefits possible with extended treatment.
- Clinic lasers: high intensity, controlled environments; used by trained clinicians.
Risks
- Increased short term sensitivity
- Soft tissue burns if misused.
Internal Tooth Bleaching
Info
This is used for a single dark tooth after trauma or root canal where staining is intrinsic inside the dentin.
How it’s done
The dentist removes root canal filling temporarily, then places bleaching agent inside the crown, then seals the tooth with temporary filling. This is repeated every few days until the desired shade has been achieved.
Effectiveness
Very effective for non vital tooth discoloration, this method often avoids the need for Veneers.
Risks
- External cervical resorption, this is essentially just the loss of dental hard tissue.
Microabrasion and Enamel Abrasion
Info
It is the chemical removal of superficial enamel stains and surface irregularities. Usually, it's used for white spots, brown spots, fluorosis, or superficial staining.
How it’s done
It is performed by a dentist, they apply microabrasion compound, then apply rubber cups, and perform controlled enamel removal, usually a fraction of a mm which is then often followed by fluoride treatment and polishing.
Effectiveness
Good for surface stains, however it is not effective at all for dentin.
Risks
- Loss of enamel thickness which is not reversible
Veneers, Crowns, Bonding
Info
Self explanatory, it is used for Intrinsic stains that are unresponsive to bleaching. It can also be used for shape corrections or desire for permanent shade and/or shape change.
Types
- Porcelain veneers
- Composite bonding
- Crowns
How it’s done
The dentist prepares the teeth, takes custom analytics of the tooth pre-op, fabricates restorations and bonds them. Dental bleaching is ideally done before shade selection.
Effectiveness
This is most reliable for severe intrinsic discoloration. It provides predictable, lasting colour.
Risks
- High cost
- Irreversible tooth reduction for porcelain crowns/veneers
DIY and natural remedies
Below are common home remedies, their mechanisms, evidence, effectiveness, and safety notes:
Safety Awareness
Common side effects when teeth whitening
- Tooth sensitivity.
- Gingival irritation from gel overflow.
- Uneven whitening for teeth with restorations (Crowns, Veneers, etc.)
- Restorations may need replacement to match new shade.
When whitening will be ineffective or limited
- Deep intrinsic stains - consider veneers/crowns.
- Non vital tooth discoloration - consider internal bleaching or veneers/crowns.
Mythbuster
