International Journal of Contemporary Medicine

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Relating Central Incisor to Inner Canthal Distance - A Flexible Approach Adaptable to Different Population Groups


Affiliations
1 Senior Resident, India
2 Department of Prosthodontics, Santosh University, Ghaziabad, UP, India
3 Department of Prosthodontics, Faculty of Dental Sciences, King George's Medical University, Lucknow, UP, India
4 Active Research Group, Taj Enclave Basement, Tulsidas Marg, Chowk, Lucknow, UP, India
5 De Dentist Clinic & Research centre, Lucknow, UP, India
     

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Purpose: Knowing the fact that human body is bilaterally symmetrical, the facial profile is also bilaterally symmetrical, and hence the proportions applying to one medial part of face can be extended to the other parts too. Keeping this in mind the aim was to explore whether inner canthal distance (ICD) can be related to central incisor width (CIW). Material & Method: ICD and CIW of the 309 samples were measured along with their age and gender. Age and gender corrected standard curves were plotted between ICD and CIW to formulate a linear correlation. After obtaining the standard curves, the coefficients for age and ICD were obtained separately for both the sexes in the form of equation y =α + β1a1 + β2a2 where y=Calculated CIW (CCIW), is the constant, β1 and β2 are the coefficients derived for age and ICD respectively. Result: The results showed that there were no statistically significant differences in CIW and CCIW. The interquartile range of differences was within 0.5 mm for both the genders. Conclusion: By using the variable, inner canthal distance can be used as a predictor of CIW. The method can successfully be used for treatment planning amongst edentulous subjects.

Keywords

Inner Canthal Distance, Central Incisor, Esthetic, Edentulous, Proportions.
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  • Relating Central Incisor to Inner Canthal Distance - A Flexible Approach Adaptable to Different Population Groups

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Authors

Bhaskar Agarwal
Senior Resident, India
Mohit Kumar
Department of Prosthodontics, Santosh University, Ghaziabad, UP, India
H A Alvi
Department of Prosthodontics, Faculty of Dental Sciences, King George's Medical University, Lucknow, UP, India
Varun Arora
Active Research Group, Taj Enclave Basement, Tulsidas Marg, Chowk, Lucknow, UP, India
Srishti Agarwal
De Dentist Clinic & Research centre, Lucknow, UP, India

Abstract


Purpose: Knowing the fact that human body is bilaterally symmetrical, the facial profile is also bilaterally symmetrical, and hence the proportions applying to one medial part of face can be extended to the other parts too. Keeping this in mind the aim was to explore whether inner canthal distance (ICD) can be related to central incisor width (CIW). Material & Method: ICD and CIW of the 309 samples were measured along with their age and gender. Age and gender corrected standard curves were plotted between ICD and CIW to formulate a linear correlation. After obtaining the standard curves, the coefficients for age and ICD were obtained separately for both the sexes in the form of equation y =α + β1a1 + β2a2 where y=Calculated CIW (CCIW), is the constant, β1 and β2 are the coefficients derived for age and ICD respectively. Result: The results showed that there were no statistically significant differences in CIW and CCIW. The interquartile range of differences was within 0.5 mm for both the genders. Conclusion: By using the variable, inner canthal distance can be used as a predictor of CIW. The method can successfully be used for treatment planning amongst edentulous subjects.

Keywords


Inner Canthal Distance, Central Incisor, Esthetic, Edentulous, Proportions.

References