Size Stability of the Maxillary Lateral Deciduous Incisor.

Mizoguchi, Yuji

doi:10.1537/ase.110.365

Cited by 3 publications

(1 citation statement)

References 29 publications

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“…Interestingly, however, Mizoguchi [40] noted that the deciduous lateral incisor was as stable as the central incisor in size. He speculated that the deciduous incisors had some important function which was not shared by the permanent incisors but was required during the infant period when only the deciduous incisors were present.…”

Section: Developmental Factors For the Maxillary Lateral Incisor Varimentioning

confidence: 99%

Morphological variation of the maxillary lateral incisor

Kondo

Townsend

Matsuno

2014

Japanese Dental Science Review

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The maxillary lateral incisor is a variable tooth morphologically. This tooth frequently shows reduction in size, and also various alterations in shape, for example, peg-shaped, cone-shaped, barrel-shaped and canine-shaped. The lateral incisor variant can be analyzed by family studies and using twin models, and these approaches have shown that genetic, epigenetic and environmental factors can all contribute to variation in the trait. Discordance of the phenotype in monozygotic twin pairs could be explained by the following two hypotheses: (1) the embryological environment of monochorionic twin pairs who share the same placenta and chorionic membrane during the prenatal period may differ, (2) phenotypic variation may be caused by epigenetic influences. Possible developmental factors are discussed in this review. Recent studies suggest that Msx1, Pax9 and Axin2 genes predispose to lateral incisor agenesis. Tooth reduction and agenesis seem to represent inter-related complex multifactorial traits, influenced by a combination of gene expression and function, environmental interaction and developing timing. Thus, accumulation of large data banks of morphological data is needed to support and clarify ongoing molecular genetic studies of dental development.

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Section: Developmental Factors For the Maxillary Lateral Incisor Varimentioning

confidence: 99%

Morphological variation of the maxillary lateral incisor

Kondo

Townsend

Matsuno

2014

Japanese Dental Science Review

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Crown dimensions of primary teeth—A systematic review and meta‐analysis

Bhavyaa

Muthu

et al. 2022

Journal of Forensic Sciences

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Odontometrics, also known as metric traits, includes mesiodistal, buccolingual dimensions, and crown height. The purpose of this study was to assess pancontinental odontometric variations in the crown dimensions of primary teeth. Ten electronic databases were searched to identify studies that measured crown dimensions of primary teeth, published in English language, without year restriction up to July 2020.Studies included cross-sectional research measuring on casts, subjects, and on radiographs of healthy children. Meta-analysis was performed, and risk of bias was assessed using modified Newcastle-Ottawa Scale. Eighty-seven observational studies were included, with 24,634 participants (9487 males, 11,083 females; 19 studies lacked gender information). Only one study showed a low bias risk, whereas 81 and 5 studies had moderate and high risk, respectively. Sixty-five studies included for metaanalysis revealed heterogeneity in mean mesiodistal dimensions of maxillary first molars from Asia (I 2 -99.7%), buccolingual measurements of mandibular first molars from Europe (I 2 -99.9%), crown height of mandibular second molars from Africa and Europe (I 2 -79.8%). Among mesiodistal and buccolingual dimensions, Australians have larger while Asians have smaller teeth. Pertaining to crown height, very few studies could be found in the literature. This review highlights the variations in crown dimensions of primary teeth among populations.

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