From: Study of twenty non-metric dental crown traits using ASUDAS system in NCR (India) population
# | Study year | Target population | Number of traits studied | Sample size (teeth / cast) | Conclusion / inference / important finding | Reference (authors) |
---|---|---|---|---|---|---|
1. | 2017 | Kerala | 15 | 1743 (1259 premolars, 484 molars) | Low prevalence rate of Carabelli trait (11.26% over all) | (Baby et al. 2017) |
2. | 2018 | Bengaluru (Karnataka) | 1 | 400 casts | 87% frequency in maxillary first permanent molar | (Smitha et al. 2018) |
3. | 2019 | Bengaluru (Karnataka) | 5 | 400 casts | • Hindus, Muslims and Christians (Indians) belong to Sundonts • Iranians belong to Sinodonts | (Venkatesh et al. 2019) |
4. | 2019 | Kerala | 10 | 1761 teeth | • The most common trait noted was shoveling 11 (69.12%) followed by 21 (62.94%). | (Baby and Sunil 2019) |
5. | 2020 | Odisha And Kerala | 11 | Odisha (n=506) and Kerala (n=536) | Cusp of Carabelli (48 %) followed by shovelling of incisors (15%) in frequency | (Nair et al. 2020) |
6. | 2021 | Ajnala (Punjab) | 11 | 1527 teeth | Unique frequency for non-metric dental traits in comparison with major continental ancestries | (Acharya and Sehrawat 2021) |
7. | 2022 | National Capital Region (NCR) population | 20 | 200 upper and lower casts | • Cusp number (83%) and Lingual Cusp Variation (79%) most frequent. • Cusp of Carabelli (frequency 25.5 %) • No sexual dimorphism in traits seen | Present study |