Multiple external cervical root resorptions after home whitening treatment: a case report

Area of Science:

• Dentistry
• Endodontics
• Dental Materials

Background:

• Vital tooth bleaching is a common cosmetic procedure.
• Home whitening treatments utilize varying concentrations of bleaching agents like carbamide peroxide.
• Potential risks and side effects of vital bleaching, especially with improper use, require thorough investigation.

Observation:

• A 34-year-old male patient presented with dental sensitivity and mobility.
• The patient self-administered a 22% carbamide peroxide gel nightly for four days, exceeding manufacturer recommendations.
• Clinical examination revealed gingival swelling, increased probing depths, and grade 2 tooth mobility.

Findings:

• Radiographic examination confirmed multiple external cervical root resorptions (ECRR) at initial presentation.
• New ECRR lesions developed in the same teeth six months later.
• Histological analysis of extracted teeth showed dentine lacunae and reparative areas, indicative of ECRR.

Implications:

• Misguided home whitening treatments can cause severe dental complications such as ECRR.
• Dentists must educate patients on the risks and proper usage of vital bleaching agents.
• Informed consent detailing the benefits and potential risks of tooth bleaching is crucial for patient safety.