Estimation of Crown Length, Root Length and Golden Divine Ratio in Extracted Permanent Maxillary and Mandibular Central Incisors: An In-vitro Study
Correspondence Address :
Dr. Deepak Pandiar,
Professor, Department of Oral Biology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai-600077, Tamil Nadu, India.
E-mail: deepakpandiar1923@yahoo.com
Introduction: Human teeth serve many crucial functions, and aesthetics is one of these. Aesthetics and beauty are often correlated with the Golden Divine Ratio (GDR), a unique proportion hypothesised to exist in individuals or things with a harmonious appearance.
Aim: To estimate the crown length, root length, and GDR in extracted human permanent maxillary and mandibular Central Incisors (CI) in the population of Tamil ethnicity from South India.
Materials and Methods: This in-vitro cross-sectional study was conducted in the Department of Oral Pathology and Microbiology at Saveetha Dental College and Hospitals, Chennai, Tamil Nadu, India, from January 2023 to October 2023. The study included a total of 90 extracted human teeth from the Institutional tooth repository, out of which 27 were upper permanent CIs and the remaining 63 were mandibular CIs. Crown length and root length were measured using digital vernier calipers, and golden ratios were derived. Statistical Package for Social Sciences (SPSS) software version 26.0. was used for descriptive analysis and deriving means and standard deviation.
Results: The average crown length, root length, and total length of upper CIs were 8.06±0.09 mm, 13.01±1.47 mm, and 21.06±2.36 mm, respectively. For the remaining 63 extracted permanent mandibular CIs, the mean crown length, root length, and total length were 7.85±0.66 mm, 12.6±0.97 mm, and 20.45±1.49 mm, respectively. The Root-to-Crown (R/C) ratio and Total Length to Root Length (T/R) ratio approximated 1.618 for both sets of teeth.
Conclusion: The crown length of maxillary and mandibular CIs from the Tamil population followed the golden ratio in the present study.
Golden ratio, Mandibular forensic, Morphology, Teeth, Tooth measurement
DOI: 10.7860/JCDR/2024/69205.19408
Date of Submission: Dec 21, 2023
Date of Peer Review: Feb 13, 2024
Date of Acceptance: Mar 07, 2024
Date of Publishing: May 01, 2024
Author declaration:
• Financial or Other Competing Interests: None
• Was Ethics Committee Approval obtained for this study? Yes
• Was informed consent obtained from the subjects involved in the study? NA
• For any images presented appropriate consent has been obtained from the subjects. NA
PLAGIARISM CHECKING METHODS:
• Plagiarism X-checker: Dec 21, 2023
• Manual Googling: Feb 29, 2024
• iThenticate Software: Mar 04, 2024 (19%)
Etymology: Author Origin
Emendations: 7
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