Benign Paroxysmal Positional Vertigo after Dental Procedures: A Population-Based Case-Control Study.

Area of Science:

• Otolaryngology
• Neurology
• Dentistry

Background:

• Benign paroxysmal positional vertigo (BPPV) is the most common cause of vertigo.
• The exact cause of BPPV is often unknown, but otolith dislodgement is the suspected mechanism.
• Dental procedures are a potential, unproven trigger for BPPV.

Purpose of the Study:

• To investigate the correlation between dental procedures and BPPV.
• To determine if dental manipulation is a risk factor for BPPV development.

Main Methods:

• Nationwide population-based case-control study using Taiwan's National Health Insurance Research Database.
• Recruited 768 BPPV patients and 1536 matched controls (2007-2012).
• Assessed dental procedures within 1 and 3 months prior to BPPV diagnosis, adjusting for comorbidities.

Main Results:

• 9.2% of BPPV patients underwent dental procedures within 1 month, versus 5.5% in controls (P=0.001).
• Recent dental procedures showed a positive association with BPPV (aOR 1.77).
• The association remained significant when extending the timeframe to 3 months (aOR 1.77).

Conclusions:

• Dental procedures are correlated with an increased risk of BPPV.
• BPPV specialists should consider dental procedures as a potential risk factor.
• Dentists should be aware of BPPV as a possible complication of dental treatment.