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Side effects of external tooth bleaching: a multi-centre practice-based prospective study.

E M Bruzell¹, U Pallesen, N Rygh Thoresen

¹Senior Researcher, Nordic Institute of Dental Materials (NIOM), Sognsveien 70A, NO-0855 Oslo, Norway.

British Dental Journal

|November 9, 2013

Summary

This summary is machine-generated.

Tooth bleaching, whether at-home or in-office, frequently causes side effects like tooth sensitivity and gingival irritation. Patients with pre-existing conditions should be informed of these risks before undergoing dental bleaching.

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Area of Science:

Dental science
Cosmetic dentistry
Clinical research

Background:

Tooth bleaching is a common cosmetic dental procedure.
Both at-home and in-office methods are widely used.
Understanding the risks and predictors of side effects is crucial.

Purpose of the Study:

To assess the risk of side effects from at-home and in-office tooth bleaching.
To identify potential predictors for adverse events associated with bleaching procedures.

Main Methods:

A multi-center, prospective, questionnaire-based study.
Involved patients undergoing tooth bleaching in Scandinavia (2007-2009).
Follow-ups conducted at 14 days and one year post-treatment.

Main Results:

Tooth sensitivity prevalence was similar for both methods (50.3% at-home vs. 39.3% in-office).
Gingival irritation was significantly higher with in-office bleaching (35.7% vs. 14.0%).
Pre-existing tooth sensitivity, surface loss, gingivitis, bleaching concentration, and tray-gingiva contact predicted side effects.

Conclusions:

Tooth bleaching procedures, regardless of method, lead to a high incidence of side effects.
Patients with identified risk factors should be counseled on potential adverse effects.
Bleaching should only be performed when clinically indicated after a thorough diagnosis.