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[Histological aspects of tooth bleaching technics].
P Farge1, A Joffre, H Magloire
1Département d'Odontologie Conservatrice, Faculté d'Odontologie, Lyon.
Revue D'Odonto-Stomatologie
|July 1, 1990
Summary
Tooth bleaching is safe for enamel when no etching is used. However, internal bleaching can cause demineralization, especially at the dentoenamel junction, requiring careful clinical consideration.
Area of Science:
- Biomaterials Science
- Dental Research
- Microscopy Techniques
Context:
- Dental bleaching procedures are widely used for aesthetic purposes.
- Understanding the effects of bleaching agents on tooth structure is crucial for safe clinical application.
- Scanning electron microscopy (SEM) provides detailed surface morphology analysis.
Purpose:
- To analyze scanning electron microscopy data of tooth enamel and dentin following internal and external bleaching.
- To evaluate the chemical principles and biological effects of tooth bleaching on dental hard tissues.
- To assess the safety of tooth bleaching procedures concerning enamel integrity.
Summary:
- Tooth bleaching, when performed without prior etching, appears to be harmless to enamel structure.
- Internal bleaching can lead to enamel and dentinal demineralization, particularly affecting the dentoenamel junction.
- Pre-existing cracks in enamel may exhibit increased porosity after bleaching, especially if undermined previously.
Impact:
- Provides critical data on the safety and potential risks of different tooth bleaching techniques.
- Informs clinical decision-making regarding the appropriate use of internal and external bleaching procedures.
- Highlights the importance of considering the biological effects on dental hard tissues in relation to clinical indications.