stressftw
Sry for not answering DMs, taking a break from .me
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As it was observed for some before, ive came across this study who corroborate to the evidence that the ramus bone go through major changes after puberty and in adulthood, not only that, ramus lenght was linked to age estimation with decent accuracy, furthermore, the dismorphic difference in ramus lenght between males and females is only found past 17.
"The mandibular ramus length is valuable in age estimation and less valuable in sex determination. Computerized tomography examination is a safe and an accurate procedure with minimal radiation exposure, and provides valuable precise information regarding mandible measurements."
Sexual dimorphism was not observed until the age of 17 years in this sample of population. There was not found any significant differences in the length of the ramus of the mandible between males and females in the age range of 7 to less than 17 years. There was found a significant difference between males and females for the mean length of the mandible ramus in the age range of 17–58 years. It predicts sex with an accuracy of 67 %.
Based on the fitted models, from the ANOVA table and assuming normality, the probability was calculated; if a male has a mandibular ramus length of 6.5 cm or more, he is 65 % likely to be 30 years or older. Furthermore, we calculated a 90 % predict confidence interval at the mandibular ramus 4.5 cm, 5.5 cm and 6.5 cm for males (4.5 cm, 5.5 cm and 6.0 cm for females). If the mandible ramus length is 6.5 cm, this predicts that the mean age is 37.31 years old and it 90 % predicts age confidence interval. If the ramus length is 6.0 cm, this predicts that the mean age is 44.55 years old and it 90 % predicts age confidence interval.
Conclusion
In this study, sexual dimorphism in the mandible ramus length was not observed until the age of 17 years. The mandible ramus length can be used to estimate the sex with an accuracy of 67 % using CBCT and can estimate the age with a high degree of accuracy. Two separate formulae were derived to estimate age in males and in females.
Source: https://www.sciencedirect.com/science/article/pii/S2665910720300128
"The mandibular ramus length is valuable in age estimation and less valuable in sex determination. Computerized tomography examination is a safe and an accurate procedure with minimal radiation exposure, and provides valuable precise information regarding mandible measurements."
Sexual dimorphism was not observed until the age of 17 years in this sample of population. There was not found any significant differences in the length of the ramus of the mandible between males and females in the age range of 7 to less than 17 years. There was found a significant difference between males and females for the mean length of the mandible ramus in the age range of 17–58 years. It predicts sex with an accuracy of 67 %.
Based on the fitted models, from the ANOVA table and assuming normality, the probability was calculated; if a male has a mandibular ramus length of 6.5 cm or more, he is 65 % likely to be 30 years or older. Furthermore, we calculated a 90 % predict confidence interval at the mandibular ramus 4.5 cm, 5.5 cm and 6.5 cm for males (4.5 cm, 5.5 cm and 6.0 cm for females). If the mandible ramus length is 6.5 cm, this predicts that the mean age is 37.31 years old and it 90 % predicts age confidence interval. If the ramus length is 6.0 cm, this predicts that the mean age is 44.55 years old and it 90 % predicts age confidence interval.
Conclusion
In this study, sexual dimorphism in the mandible ramus length was not observed until the age of 17 years. The mandible ramus length can be used to estimate the sex with an accuracy of 67 % using CBCT and can estimate the age with a high degree of accuracy. Two separate formulae were derived to estimate age in males and in females.
Source: https://www.sciencedirect.com/science/article/pii/S2665910720300128