• Users Online: 315
  • Home
  • Print this page
  • Email this page
Home About us Editorial board Ahead of print Current issue Search Archives Submit article Instructions Subscribe Contacts Login 
ORIGINAL ARTICLE
Year : 2021  |  Volume : 6  |  Issue : 2  |  Page : 99-105

Cusp number traits and the dental crown metric traits of mandibular premolars and maxillary second molar in sex determination: A cross-sectional dental model-based observational study


1 Private Practitioner, Dental Square, Gandhinagar, Ahmedabad, India
2 Department. of Oral Pathology, Government. Dental College and Hospital, Ahmedabad, Gujarat, India

Correspondence Address:
Dr. Jayasankar P Pillai
Department. of Oral Pathology, Government. Dental College and Hospital, Ahmedabad, Gujarat
India
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijfo.ijfo_20_21

Rights and Permissions

Background: The size of the posterior tooth crown is defined by the number and size of the cusps and the dimensions in both the mesiodistal and buccolingual planes. Aim and Objective: The present study was designed to explore the variations in such parameters between genders. Material and Methods: The dental models of 151 young individuals in the age range of 17–21 years were randomly selected. The crown and cusp dimensions and the number of cusps in mandibular first and second premolars and in maxillary second molars on both the sides were recorded. Results: The mandibular first premolars showed 97.35% symmetry in the number of cusps between antemers followed by maxillary second molar (88.1%) and mandibular second premolar (82.78%). The mesiodistal and the buccolingual dimensions of the crown in all the three teeth showed significant gender difference. In the maxillary second molar, only the mesiobuccal cusp in the left side showed significant gender difference. In the three cusped second molars, the lingual cusp dimensions showed significant gender difference. The discriminant model using the BL and MD dimensions of all the three teeth showed a canonical correlation of 0.722 (Wilks' lambda = 0.479, P < 0.001) with a hit ratio of 90.1%. The classification results showed that 84.1% of the males and 95.1% of females were correctly predicted using this model. The cusp number traits can significantly differentiate genders with a discriminating power of 61%. Conclusion: The metric data, especially the mesiodistal and the buccolingual dimensions from mandibular premolars and maxillary second molars, can better differentiate gender than the cusp number traits.


[FULL TEXT] [PDF]*
Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)
 

 Article Access Statistics
    Viewed372    
    Printed10    
    Emailed0    
    PDF Downloaded50    
    Comments [Add]    

Recommend this journal