Dental development and microstructure of bamboo rat incisors

Hua, Licheng; Ungar, Peter S.; Zhou, Zhongrong; Ning, Zhenwu; Zheng, Jing; Qian, Linmao; Rose, Jerome C.; Yang, Dan

doi:10.1016/j.bsbt.2015.11.001

Cited by 5 publications

(5 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This action continuously exposes new sections of the enamel material because the bamboo rat periodically sharpens its teeth. According to our measurements, the growth rate of a normal adult incisor was up to 1.5 � 0.2 mm per day, which is consistent with their wear rate [14]. These continuously growing incisors ensure the bamboo rat can gnaw fresh bamboo to get food every day.…”

Section: Function Formation Mechanism Of the Bamboo Rat Teethsupporting

confidence: 79%

The correlation between biotribological function and structural characteristics of bamboo rat teeth

Ning

Zhou

Zheng

2022

Biosurface and Biotribology

View full text Add to dashboard Cite

Chinese bamboo rats consume a diet that consists mainly mechanically demanding bamboo. The ability of the rats to process food depends on the capacity of their teeth to resist wear during biting and chewing. The mechanisms of the bamboo rat teeth were determined by investigating and correlating the structure and tribological properties of the teeth. The rat's incisor has a cutting-edge cusp and outer enamel iron pigmentation, making the teeth harder, more resistant to acid attacks, and improving the resistance to cracking. Additionally, the incisor is designed to self-sharpen. The complex morphology at the macroscale, and the three-dimensional fabric body formed by densely packed rods and inter-rods at the microscale of molar enamel benefit molar rapid capture and effective breaking of bamboo, resisting the high stresses required to process bamboo without wear. The results of the structure-function relations of bamboo rat teeth in this study may provide new ideas for improving plant cutting and grinding tools.

show abstract

Section: Function Formation Mechanism Of the Bamboo Rat Teethsupporting

confidence: 79%

The correlation between biotribological function and structural characteristics of bamboo rat teeth

Ning

Zhou

Zheng

2022

Biosurface and Biotribology

View full text Add to dashboard Cite

show abstract

“…An important feature of hypselodonty is the fact that dental extension (growth) rate varies with rate of wear to maintain occlusal relationships between opposing teeth. Marked variation of rodent incisor extension rate with diet is well established (Hua et al 2015), and the presence of a regulatory mechanism matching growth with tissue loss has been confirmed by clipping anterior teeth of glirids (Schour and Medak 1951). Further, Müller et al (2014) demonstrated with in vivo study that cheek teeth of hypselodont rabbits fed more abrasive diets have more rapid tooth wear and compensatory growth (see also Martin et al 2019Martin et al , 2020.…”

Section: Comparisons Of Results With Those From Previous Studies Of Rodent Tooth Wearmentioning

confidence: 97%

Assessing molar wear in narrow-headed voles as a proxy for diet and habitat in a changing Arctic

et al. 2020

View full text Add to dashboard Cite

This paper investigates the potential of mesoscale tooth wear (mesowear, chipping, facets, and other wear attributes) in rodents as a proxy for Arctic habitat. It presents a pilot study of narrow-headed voles, Microtus gregalis, at three sites along a latitudinal gradient of ecological subzones in the Yamal Peninsula of the Russian Arctic. These sites include Kharp in the forest-tundra ecotone, Erkuta in the low Arctic, and Sabetta at the border between the low and the high Arctic. A total of 117 specimens were included and eight variables were used to characterize mesoscale tooth wear. Results show significant differences between the sites, suggesting that these variables can distinguish populations from different subzones. Kharp has the flattest tooth wear, whereas Sabetta has the most M1 occlusal relief and dentin exposure. These results are consistent with and interpreted in the light of published experimental work on captive voles. In addition, the Kharp sample has the tallest M1 crowns, whereas Sabetta has the most vertically implanted M1s. The general directional trends toward separation of values by latitude of samples suggests that mesoscale wear in hypselodont rodents (those with open-rooted, ever-growing molar teeth) reflects variation in food abrasivity and, by extension, may be valuable for tracking habitat and ecological changes in the Arctic. Keywords Rodents • Teeth • Climate change • Habitat assessment Why mesoscale wear?Many mesoscale tooth wear studies have focused on dental mesowear. This technique was developed originally two Handling editor: Eva Bärmann.

show abstract

“…Many biological tissues and organs have mechanical responses and can strengthen themselves to adapt to changes in their mechanical microenvironments. For example, bones respond to mechanical forces by remodeling to resist stresses to buttress against failure [24]; teeth respond to abrasion by increasing the rate of enamel secretion [25,26]; the skin responds to mechanical friction through callus formation to prevent wear. A novel type of intelligent biomaterial that can dynamically adapt to mechanical stimuli has been emerged recently reported in Ref.…”

Section: Introductionmentioning

confidence: 99%

Nano-frictional mechano-reinforcing porous nanowires scaffolds

Hua,

Hu,

Zhang

et al. 2023

Friction

View full text Add to dashboard Cite

Artificial biomaterials with dynamic mechano-responsive behaviors similar to those of biological tissues have been drawing great attention. In this study, we report a TiO2-based nanowire (TiO2NWs) scaffolds, which exhibit dynamic mechano-responsive behaviors varying with the number and amplitude of nano-deformation cycles. It is found that the elastic and adhesive forces in the TiO2NWs scaffolds can increase significantly after multiple cycles of nano-deformation. Further nanofriction experiments show the triboelectric effect of increasing elastic and adhesive forces during the nano-deformation cycles of TiO2NWs scaffolds. These properties allow the TiO2NW scaffolds to be designed and applied as intelligent artificial biomaterials to simulate biological tissues in the future.

show abstract

Dental development and microstructure of bamboo rat incisors

Cited by 5 publications

References 21 publications

The correlation between biotribological function and structural characteristics of bamboo rat teeth

The correlation between biotribological function and structural characteristics of bamboo rat teeth

Assessing molar wear in narrow-headed voles as a proxy for diet and habitat in a changing Arctic

Nano-frictional mechano-reinforcing porous nanowires scaffolds

Contact Info

Product

Resources

About