The Experts below are selected from a list of 21 Experts worldwide ranked by ideXlab platform
Hilary M Clayton - One of the best experts on this subject based on the ideXlab platform.
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dimensions of 65 extracted equine first premolar teeth
Journal of Veterinary Dentistry, 2016Co-Authors: Sam Luis Hole, Jane M Manfredi, Hilary M ClaytonAbstract:The equine first premolar (“Wolf Tooth,” Triadan number 05) is frequently extracted, and although extracted teeth have been observed to vary greatly in size, published data describing Tooth dimensions are limited. Total length, root length, crown height, and crown width were measured in 65 extracted Wolf teeth. Dimensions, expressed as median (range) mm, were total length: 21 (12-34), root length: 13.2 (0-19.6), crown height: 7 (2-20), and crown width: 7 (2.6-16). Root length exceeded crown height in 61 of the 65 teeth. Crown height and crown width were either not correlated or poorly correlated with root length using Spearman rank correlation coefficient (ρ = −.093 and ρ = .463, respectively). Total length was poorly correlated with crown height (ρ = .443) but had a fair correlation with crown width (ρ = .646). The dimensions of the clinical crown of the Tooth do not provide a good estimate of root length, although the root is usually longer than the crown.
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dimensions of 65 extracted equine first premolar Wolf teeth
Equine Veterinary Journal, 2014Co-Authors: Sam Luis Hole, Jane M Manfredi, Hilary M ClaytonAbstract:Reasons for performing study The maxillary first premolar (Wolf Tooth) is present in a significant proportion (13–40%) of horses and is frequently extracted. The size of these teeth has been reported to vary but the authors are not aware of published descriptions of the dimensions of these teeth. Objectives To measure the dimensions of a sample of equine first premolar teeth and to seek correlations between dimensions of the crown and the root. Study design A retrospective descriptive study. Methods Calipers were used to measure total length, root length, crown height, and crown width of 65 first premolar teeth extracted in their entirety from 2 populations of horses (UK population: n = 30, USA population: n = 35). Most of the variables were not normally distributed so nonparametric statistics (Spearman correlation coefficients) were used to describe Tooth size and seek correlations between different measurements. Results Dimensions expressed as median (range) were total length: 21 (12–34) mm; root length: 13.2 (0–19.6) mm; crown height 7 (2–20) mm; and crown width 7 (2.6–16) mm. Root length was longer than crown height in 61/65 teeth. Total length was poorly correlated with crown height (r = 0.443) but had a good correlation with root length (r = 0.799). Crown height and crown width were poorly correlated with root length (r = -0.093 and r = 0.463), respectively. Conclusions The dimensions of 65 first premolar teeth indicate that the root is usually longer than the crown but that the dimensions of the clinical crown of the Tooth do not provide a good estimate of the length of the root. Ethical animal research: Ethical committee oversight not currently required by this congress: material was collected as part of clinical procedures. Explicit owner informed consent for participation in this study was not stated. Sources of funding: None. Competing interests: None.
Sam Luis Hole - One of the best experts on this subject based on the ideXlab platform.
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dimensions of 65 extracted equine first premolar teeth
Journal of Veterinary Dentistry, 2016Co-Authors: Sam Luis Hole, Jane M Manfredi, Hilary M ClaytonAbstract:The equine first premolar (“Wolf Tooth,” Triadan number 05) is frequently extracted, and although extracted teeth have been observed to vary greatly in size, published data describing Tooth dimensions are limited. Total length, root length, crown height, and crown width were measured in 65 extracted Wolf teeth. Dimensions, expressed as median (range) mm, were total length: 21 (12-34), root length: 13.2 (0-19.6), crown height: 7 (2-20), and crown width: 7 (2.6-16). Root length exceeded crown height in 61 of the 65 teeth. Crown height and crown width were either not correlated or poorly correlated with root length using Spearman rank correlation coefficient (ρ = −.093 and ρ = .463, respectively). Total length was poorly correlated with crown height (ρ = .443) but had a fair correlation with crown width (ρ = .646). The dimensions of the clinical crown of the Tooth do not provide a good estimate of root length, although the root is usually longer than the crown.
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dimensions of 65 extracted equine first premolar Wolf teeth
Equine Veterinary Journal, 2014Co-Authors: Sam Luis Hole, Jane M Manfredi, Hilary M ClaytonAbstract:Reasons for performing study The maxillary first premolar (Wolf Tooth) is present in a significant proportion (13–40%) of horses and is frequently extracted. The size of these teeth has been reported to vary but the authors are not aware of published descriptions of the dimensions of these teeth. Objectives To measure the dimensions of a sample of equine first premolar teeth and to seek correlations between dimensions of the crown and the root. Study design A retrospective descriptive study. Methods Calipers were used to measure total length, root length, crown height, and crown width of 65 first premolar teeth extracted in their entirety from 2 populations of horses (UK population: n = 30, USA population: n = 35). Most of the variables were not normally distributed so nonparametric statistics (Spearman correlation coefficients) were used to describe Tooth size and seek correlations between different measurements. Results Dimensions expressed as median (range) were total length: 21 (12–34) mm; root length: 13.2 (0–19.6) mm; crown height 7 (2–20) mm; and crown width 7 (2.6–16) mm. Root length was longer than crown height in 61/65 teeth. Total length was poorly correlated with crown height (r = 0.443) but had a good correlation with root length (r = 0.799). Crown height and crown width were poorly correlated with root length (r = -0.093 and r = 0.463), respectively. Conclusions The dimensions of 65 first premolar teeth indicate that the root is usually longer than the crown but that the dimensions of the clinical crown of the Tooth do not provide a good estimate of the length of the root. Ethical animal research: Ethical committee oversight not currently required by this congress: material was collected as part of clinical procedures. Explicit owner informed consent for participation in this study was not stated. Sources of funding: None. Competing interests: None.
Jane M Manfredi - One of the best experts on this subject based on the ideXlab platform.
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dimensions of 65 extracted equine first premolar teeth
Journal of Veterinary Dentistry, 2016Co-Authors: Sam Luis Hole, Jane M Manfredi, Hilary M ClaytonAbstract:The equine first premolar (“Wolf Tooth,” Triadan number 05) is frequently extracted, and although extracted teeth have been observed to vary greatly in size, published data describing Tooth dimensions are limited. Total length, root length, crown height, and crown width were measured in 65 extracted Wolf teeth. Dimensions, expressed as median (range) mm, were total length: 21 (12-34), root length: 13.2 (0-19.6), crown height: 7 (2-20), and crown width: 7 (2.6-16). Root length exceeded crown height in 61 of the 65 teeth. Crown height and crown width were either not correlated or poorly correlated with root length using Spearman rank correlation coefficient (ρ = −.093 and ρ = .463, respectively). Total length was poorly correlated with crown height (ρ = .443) but had a fair correlation with crown width (ρ = .646). The dimensions of the clinical crown of the Tooth do not provide a good estimate of root length, although the root is usually longer than the crown.
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dimensions of 65 extracted equine first premolar Wolf teeth
Equine Veterinary Journal, 2014Co-Authors: Sam Luis Hole, Jane M Manfredi, Hilary M ClaytonAbstract:Reasons for performing study The maxillary first premolar (Wolf Tooth) is present in a significant proportion (13–40%) of horses and is frequently extracted. The size of these teeth has been reported to vary but the authors are not aware of published descriptions of the dimensions of these teeth. Objectives To measure the dimensions of a sample of equine first premolar teeth and to seek correlations between dimensions of the crown and the root. Study design A retrospective descriptive study. Methods Calipers were used to measure total length, root length, crown height, and crown width of 65 first premolar teeth extracted in their entirety from 2 populations of horses (UK population: n = 30, USA population: n = 35). Most of the variables were not normally distributed so nonparametric statistics (Spearman correlation coefficients) were used to describe Tooth size and seek correlations between different measurements. Results Dimensions expressed as median (range) were total length: 21 (12–34) mm; root length: 13.2 (0–19.6) mm; crown height 7 (2–20) mm; and crown width 7 (2.6–16) mm. Root length was longer than crown height in 61/65 teeth. Total length was poorly correlated with crown height (r = 0.443) but had a good correlation with root length (r = 0.799). Crown height and crown width were poorly correlated with root length (r = -0.093 and r = 0.463), respectively. Conclusions The dimensions of 65 first premolar teeth indicate that the root is usually longer than the crown but that the dimensions of the clinical crown of the Tooth do not provide a good estimate of the length of the root. Ethical animal research: Ethical committee oversight not currently required by this congress: material was collected as part of clinical procedures. Explicit owner informed consent for participation in this study was not stated. Sources of funding: None. Competing interests: None.
Jocelyn Whitworth - One of the best experts on this subject based on the ideXlab platform.
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origins of equine dentistry
Proceedings of the National Academy of Sciences of the United States of America, 2018Co-Authors: William Timothy Treal Taylor, Jamsranjav Bayarsaikhan, Tumurbaatar Tuvshinjargal, Scott Bender, Monica Tromp, Julia Clark, Bryce K Lowry, Jeanluc Houle, Dimitri Staszewski, Jocelyn WhitworthAbstract:From the American West to the steppes of Eurasia, the domestic horse transformed human societies, providing rapid transport, communication, and military power, and serving as an important subsistence animal. Because of the importance of oral equipment for horse riding, dentistry is an essential component of modern horse care. In the open grasslands of northeast Asia, horses remain the primary form of transport for many herders. Although free-range grazing on gritty forage mitigates many equine dental issues, contemporary Mongolian horsemen nonetheless practice some forms of dentistry, including the removal of problematic deciduous teeth and the vestigial first premolar (“Wolf Tooth”). Here, we present archaezoological data from equine skeletal remains spanning the past 3,200 y, indicating that nomadic dental practices have great antiquity. Anthropogenic modifications to malerupted deciduous central incisors in young horses from the Late Bronze Age demonstrate their attempted removal, coinciding with the local innovation or adoption of horseback riding and the florescence of Mongolian pastoral society. Horse specimens from this period show no evidence of first premolar removal, which we first identify in specimens dating to ca. 750 BCE. The onset of premolar extraction parallels the archaeological appearance of jointed bronze and iron bits, suggesting that this technological shift prompted innovations in dentistry that improved horse health and horse control. These discoveries provide the earliest directly dated evidence for veterinary dentistry, and suggest that innovations in equine care by nomadic peoples ca. 1150 BCE enabled the use of horses for increasingly sophisticated mounted riding and warfare.
William Timothy Treal Taylor - One of the best experts on this subject based on the ideXlab platform.
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origins of equine dentistry
Proceedings of the National Academy of Sciences of the United States of America, 2018Co-Authors: William Timothy Treal Taylor, Jamsranjav Bayarsaikhan, Tumurbaatar Tuvshinjargal, Scott Bender, Monica Tromp, Julia Clark, Bryce K Lowry, Jeanluc Houle, Dimitri Staszewski, Jocelyn WhitworthAbstract:From the American West to the steppes of Eurasia, the domestic horse transformed human societies, providing rapid transport, communication, and military power, and serving as an important subsistence animal. Because of the importance of oral equipment for horse riding, dentistry is an essential component of modern horse care. In the open grasslands of northeast Asia, horses remain the primary form of transport for many herders. Although free-range grazing on gritty forage mitigates many equine dental issues, contemporary Mongolian horsemen nonetheless practice some forms of dentistry, including the removal of problematic deciduous teeth and the vestigial first premolar (“Wolf Tooth”). Here, we present archaezoological data from equine skeletal remains spanning the past 3,200 y, indicating that nomadic dental practices have great antiquity. Anthropogenic modifications to malerupted deciduous central incisors in young horses from the Late Bronze Age demonstrate their attempted removal, coinciding with the local innovation or adoption of horseback riding and the florescence of Mongolian pastoral society. Horse specimens from this period show no evidence of first premolar removal, which we first identify in specimens dating to ca. 750 BCE. The onset of premolar extraction parallels the archaeological appearance of jointed bronze and iron bits, suggesting that this technological shift prompted innovations in dentistry that improved horse health and horse control. These discoveries provide the earliest directly dated evidence for veterinary dentistry, and suggest that innovations in equine care by nomadic peoples ca. 1150 BCE enabled the use of horses for increasingly sophisticated mounted riding and warfare.
