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Five-year follow-up of internal bleaching
K Glockner1, H Hulla, K Ebeleseder
1Department of Conservative Dentistry, School of Dentistry, Karl-Franzens-University, Graz, Austria. glockner@email.kfunigraz.ac.at
Brazilian Dental Journal
|June 23, 2000
Summary
Internal bleaching offers long-term success for discolored nonvital anterior teeth, with a 79% success rate after five years. Ideal cases performed precisely can exceed 90% success, showing no detrimental effects on dental hard tissue.
Area of Science:
- Dentistry
- Endodontics
- Esthetic Dentistry
Background:
- Discolored nonvital anterior teeth present an esthetic challenge.
- Internal bleaching is a technique used to lighten these teeth.
- Long-term efficacy data for internal bleaching is crucial for clinical decision-making.
Purpose of the Study:
- To evaluate the longevity of internal bleaching results over a 5-year period.
- To determine the success rate of the "walking internal bleaching" technique.
- To assess any detrimental effects on dental hard tissue.
Main Methods:
- A 5-year clinical follow-up study.
- Involved patients treated with the "walking internal bleaching" method.
- Success was evaluated based on objective and subjective patient criteria.
Main Results:
- An overall success rate of 79% was observed after 5 years for all indications.
- Success rates reached 91% when limited to a single palatal endodontic opening.
- Subjective patient evaluations indicated a 98% success rate.
Conclusions:
- Internal bleaching provides durable, long-term esthetic results for discolored nonvital anterior teeth.
- The technique demonstrates a high success rate, particularly in ideal or limited-indication cases.
- Internal bleaching does not adversely affect the dental hard tissues, supporting its use in clinical practice.