The morphogenetic triangle
A new conceptual tool for application to problems in dental morphogenesis
Bibliographic Data
| ID | 8316288 |
|---|---|
| Authors | Harris J Keene (corresponding author) |
| Year | 1982 |
| Volume | 59 |
| Issue | 3 |
| Pages | 281-287 |
| Publication date | 1982-11-01 |
| Peer Reviewed | Yes |
| 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.1330590307 |
| PMID | 7158662 |
| OpenAlex | W2073813020 |
| Language | EN |
| Citations received | 12 |
| References cited | 17 |
A hypothetical mathematical model of human dental crown height attainment during morphogenesis was developed. The model is based on well‐known histologic stages of tooth development from initiation to crown completion, with special emphasis on the dynamics and life‐cycle of the cells of the inner enamel epithelium. From three temporal events (P, initiation of proliferation; D, initiation of differentiation; C, crown completion), and crown height (H) measured at the dentino‐enamel junction, a morphogenetic triangle PDZ can be constructed where Z = coordinates of H and C at the time of crown completion. The slope of lines PZ and DZ represent average proliferation rate (R p ) and average differentiation rate (R d ) of the inner enamel epithelium, respectively, during crown formation. From data available in the literature, and based on morphogenetic triangle principles, R p and R d were calculated for the deciduous and succedaneous dentitions. A strong positive correlation between R p and R d was observed throughout the 20‐tooth series (r = 0.996); however, R p and R d showed moderately strong negative associations with H, P, D, C, and the intervals between PD, PC, and DC. The smaller deciduous tooth in each deciduous:permanent pair was associated with faster R p and R d , and shorter intervals between initiation of proliferation, initiation of differentiation, and crown completion. The data generated in this analysis of a hypothetical dentition, while not definitive, provide new insights and a theoretical basis for a broader understanding of the basic mechanisms involved in the attainment of certain tooth dimensions during morphogenesis
Biology · Botany · Crown (dentistry) · Deciduous · Dentition · Enamel paint · Morphogenesis · Anatomy · Cell Biology · dental development and anomalies · Dentistry · Genetics · Medicine · Orthodontics
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The Anthropology of Modern Human Teeth
Variations in growth of the enamel crown in human teeth and a possible relationship between growth and enamel structure
Size and shape of mandibular first molars in Down syndrome
Analyse morphométrique comparée des dents humaines de Gran Dolina (TD6) et de Sima de los Huesos d'Atapuerca
On heterochrony in heterodonty
Intercusp relationships of the permanent maxillary first and second molars in American whites
Variation in the developing root cone angle of the permanent mandibular teeth of modern man and certain fossil hominids
Posterior dental size reduction in hominids
Variation in crown and root formation and eruption of human deciduous teeth
Carabelli's trait and tooth size of human maxillary first molars
| Unique citing works | 12 |
|---|---|
| Citations per year | 0,29 |
| Citation span | 1984 - 2018 (35) |
| Citation velocity | historical |
| Highly cited | No |
| Citation types | Neutral: 10 |