Human permanent teeth are divided into two parts at the cemento-enamel junction in the divine golden ratio

Sarode, Sachin C.; Sarode, Gargi S; Patil, Shankargouda

doi:10.4103/ijdr.ijdr_525_16

Cited by 3 publications

(5 citation statements)

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“…Regarding the mandibular canines, we had a larger number of teeth. The GDR calculated for RL/CL was 1.607±0.25 and 1.64±0.087 for TL/RL; the reverse ratio was noted in another study comprising 10 mandibular canines (1.633±0.014 for RL/CL and 1.606±0.005 for TL/RL) [ 1 ].…”

Section: Discussionmentioning

confidence: 81%

“…While the golden ratios of the TL/RL or RL/CL and the width/height ratio of human canines could be useful guides in reestablishing an attractive smile and for functional purposes, they may also be used in forensic medicine for identification and comparative anthropological studies. Anand et al found that from Western India, RL/CL and TL/RL for maxillary canines (10 teeth) were 1.636±0.015 and 1.605±0.007, respectively [ 1 ]. In our cohort of Tamil ethnicity, the values approximated 1.61±0.16 and 1.62±0.093.…”

Section: Discussionmentioning

confidence: 99%

“…GDR was estimated as previously described [ 1 ]. Using digital vernier calipers, we first estimated the length of the crowns and roots separately and recorded them.…”

Section: Methodsmentioning

confidence: 99%

“…The golden divine ratio (GDR) is a unique proportion, and it has been hypothesized most 'aesthetically pleasing objects or subjects' bear this ratio, set at 1.618 (Phi/ɸ) [ 1 ]. Human teeth comprise 60% of our oral cavity and are functionally important and significant for aesthetics.…”

Section: Introductionmentioning

confidence: 99%

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Estimation of Tooth Dimensions and Golden Divine Ratio in Extracted Human Permanent Maxillary and Mandibular Canines in a Cohort of Tamil Ethnicity

Kumar,

Pandiar,

Poothakulath Krishnan

et al. 2024

Cureus

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Background Teeth serve many functions, and aesthetics is one of the most important aspects served by teeth, perceived by the limbic system of the human brain. The golden divine ratio is the unique proportion often correlated with beauty. The present study was devised to estimate the dimension of human permanent canines and approximation to the golden divine ratio. Materials and methods The present study included 47 extracted human permanent canines retrieved from the tooth repository of our institute's Department of Oral Biology. Using digital vernier calipers (Themisto TH-M61 digital vernier caliper, 0-150mm/ 6 inch, JIPVI Ecommerce Pvt. Ltd, India, 2022), the following measurements were taken: Mesio-distal and labiolingual dimensions of the crown, crown length, root length, root to crown ratio (R/C) and the tooth to root ratio (T/R). The data were analyzed using Statistical Package for Social Sciences (SPSS) software version 26. Results All the dimensions' mean and standard deviations were calculated for both maxillary and mandibular canines. While the means of mesio-distal and labiolingual dimensions of the crown approximated the values reported in the literature, there was some variation in crown and root lengths. The mean crown lengths of the upper and lower canines were 10.34mm and 9.76mm, respectively, while the root lengths were 16.52 and 15.54mm, respectively. The R/C of both sets and the T/R of the upper canine only followed the golden ratio. T/R of the lower canine was slightly higher (1.64) Conclusion Although the number of included teeth was less, owing to the fact that canines are rarely extracted, our results provided new values of canines for updation in a unique population. More studies are required for comparative anthropological data updates.

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Section: Discussionmentioning

confidence: 81%

Section: Discussionmentioning

confidence: 99%

“…GDR was estimated as previously described [ 1 ]. Using digital vernier calipers, we first estimated the length of the crowns and roots separately and recorded them.…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Estimation of Tooth Dimensions and Golden Divine Ratio in Extracted Human Permanent Maxillary and Mandibular Canines in a Cohort of Tamil Ethnicity

Kumar,

Pandiar,

Poothakulath Krishnan

et al. 2024

Cureus

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“…The golden ratio φ is a proportion that has been found with many natural phenomena, as well as in different fields in medicine: cardiovascular pathophysiology [7][8][9], respiratory medicine [10], ENT surgery [11], dental surgery [12][13], plastic surgery [14][15][16], and many other fields [17][18]. To the best of our knowledge, this is the first study to assess the geometry of the wrist joint in relation to the golden ratio.…”

Section: Discussionmentioning

confidence: 99%

The Golden Ratio in Pediatric Wrist Anatomy: A Divine Symmetry

Mamarelis¹,

Karam²,

Sohail³

et al. 2022

Cureus

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Introduction: The golden ratio, which equals 1.61803…, and is usually defined by the Greek letter φ (phi), has attracted broad attention for a long time. It has been found in many phenomena in the universe including, body symmetry and locomotion. Within this context, the purpose of our study was to evaluate normal morphometric measurements of the wrist in the pediatric population and to identify if phi (φ) is part of the distal radioulnar joint.Methods: We retrospectively reviewed the hospital records of all skeletally immature patients requiring surgical intervention for distal radius fracture in our unit between January 2010 and January 2017. We define and describe a reproducible method to measure the ratio of the distal radial and ulnar physes.Results: A total of 268 patients were included with a mean age of 9.41 (3-16) years and a mode of 7 years. Some 63.4% were boys --43.3% were right-sided injuries and 56.7% were left-sided injuries. The ratio between the total width of the radial and ulnar growth plates and the radial growth plate closely approximated φ; the mean of this ratio in all the patients included was 1.619684 (1.5848-1.6643). Most of the injuries happened in the summertime, between May and August. Conclusion:We found that the golden ratio exists in our body to play its harmony in the pediatric wrist joint. We believe that with the support of further studies, the golden ratio might yield diagnostic and prognostic implications in the treatment of distal radius/ulnar fractures or abnormalities in this population.

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Systems biology of human aging: A Fibonacci time series model

Sacco¹,

Torday

2023

Progress in Biophysics and Molecular Biology

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Human permanent teeth are divided into two parts at the cemento-enamel junction in the divine golden ratio

Abstract: On measuring the tooth length in linear fashion from the cusp tip to the root apex, we found that the tooth was divided into two parts at the cemento-enamel junction in the golden ratio. This information can be exploited in restorative and implant dentistry in future.

Cited by 3 publications

References 1 publication

Estimation of Tooth Dimensions and Golden Divine Ratio in Extracted Human Permanent Maxillary and Mandibular Canines in a Cohort of Tamil Ethnicity

Estimation of Tooth Dimensions and Golden Divine Ratio in Extracted Human Permanent Maxillary and Mandibular Canines in a Cohort of Tamil Ethnicity

The Golden Ratio in Pediatric Wrist Anatomy: A Divine Symmetry

Systems biology of human aging: A Fibonacci time series model

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