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257 teeth with EIR
- 0.02% of the population
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Assessed for “potential predisposing factors”
- Sole factors
- Multiple factors
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Potential predisposing factors
- Orthodontics: 24.1%
- 4.3% with other factors
- No identifiable factor: 16.4%
- Trauma: 15.1%
- 10.6% with other factors
- Restoration in tooth: 14.1%
- Internal bleaching: 3.9%
- 9.7% with other factors
- Orthodontics: 24.1%
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==Internal bleaching was identified as a sole factor in only 3.9% of cases.==