Changes in the eruption order of the first permanent tooth and their relation to season of birth in Japan
Bibliographic Data
| ID | 8316050 |
|---|---|
| Authors | K Nonaka (0000-0002-4054-0103, Teikyo University), Atsuyuki ICHIKI (Teikyo University), Takayuki Miura (0000-0003-1862-1254, Teikyo University) |
| Year | 1990 |
| Volume | 82 |
| Issue | 2 |
| Pages | 191-198 |
| Publication date | 1990-06-01 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | American Journal of Physical Anthropology (JOURNAL) |
| Journal identifiers | ISSN: 0002-9483 • E-ISSN: 1096-8644 |
| Publisher | Wiley (PUBLISHER • GB) |
| DOI | 10.1002/ajpa.1330820208 |
| PMID | 2360613 |
| OpenAlex | W2080657165 |
| Language | EN |
| Citations received | 3 |
| References cited | 31 |
In order to examine the eruption order of the first two permanent teeth, kindergarten children 5 to 6 years old were examined in Hakone, Japan. Among a total of 817 children examined from 1976 to 1984, 349 were determined as I‐type children, whose mandibular first incisor erupted earlier than the mandibular first molar, and 183 were as M‐type children, whose first molar erupted earlier in the mandible. The mandibular I‐type rate, i.e., the proportion of the I‐type among a total of I‐ and M‐type children, was 66% (349/532). In 1983–1984, the I‐type rate was 70% among boys and 62% among girls, but the overall I‐type rate did not differ significantly by the sex of the subject or by the year of examination. The I‐type rate varied significantly with the season of subject's birth. Those born in October or November showed a significantly lower I‐type rate (33%) than the other subjects ( P
Animal science · Biology · Birth order · Incisor · Mandible (arthropod mouthpart) · Molar · Population · Season of birth · Tooth eruption · Zoology · Demography · dental development and anomalies · Dental Trauma and Treatments · Dentistry · Forensic Anthropology and Bioarchaeology Studies · Medicine
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| Citations per year | 0.09 |
|---|---|
| Citation span | 1994 - 2021 (28) |
| Highly cited | No |