Keywords
Nepal
Prevalence
How to Cite
Abstract
Introduction: Carabelli's trait has been used as an ethnic indicator for decades because of its ease of observation in living and skeleton specimens. It has importance in forensic, anthropological, and ethnic studies.
Objectives: The present study aimed to determine the prevalence and degree of expression of the cusp of Carabelli in the maxillary first molar among medical and dental students.
Methodology: This cross-sectional descriptive study was conducted from February 2024 to August 2024 among 221 medical and dental students using convenience sampling after obtaining institutional ethical approval. The palatal surfaces of mesiolingual cusp of permanent maxillary first molars were examined using a sterile mouth mirror and probe. The Carabelli trait was graded according to the classification given by Goose and Lee. The SPSS v.26 was used for statistical analysis. Descriptive statistics were presented as percent and frequency for categorical data.
Results: The Cusp of Carabelli was prevalent in 160 (72.40%). The Grade II pattern was the highest (136, 30.77%), and the Grade IV pattern was the lowest (32, 7.24%). Among males, 104 (73.24%) and among females 56 (70.89%) had the Carabelli trait present. The bilateral cusp of Carabelli was observed in 117 (73.13%) participants. Brahmins had the highest (77, 78.57%) and Muslims had the lowest (3, 42.86%) prevalence of cusp of Carabelli.
Conclusion: The prevalence of cusp of Carabelli in Maxillary first molar in Nepali Medical and dental students was higher compared to other populations. However full expression of a well-developed cusp was quite low in the present study
References
Shethri SA. The prevalence of the Carabelli Cusp in selected Saudi population. King Saud Univ J Dent Sci. 2011 Jul;2(1-2):13-6. [Full Text | DOI]
Sadatullah S, Odusanya SA, Mustafa A, Abdul Razak P, Abdul Wahab M, Meer Z. The prevalence of fifth cusp (Cusp of Carabelli) in the upper molars in Saudi Arabian school students. Int J Morphol. 2012 Jun;30(2):757-60. [Full Text]
Smitha T, Venkatesh D, Veeresh M, Hema K, Sheethal H, Vidya M. The cusp of carabelli: Frequency, distribution and type in the bengaluru population. J Oral Maxillofac Pathol. 2018;22(3):418-22. [PubMed | Full Text | DOI]
Subedi N, Sah S, Chataut T, Paudel S, Pradhan A. The prevalence of the carabelli trait in selected Nepalese population. Br J Med Med Res. 2015 Jan 10;7(4):285- 91. [PubMed | Full Text | DOI]
Sah SK, Kandel S, Shrestha R, Atreya A. Prevalence of Selected Non-Metric Dental Traits in Indo-Nepalese and Tibeto-Nepalese Ethnic Groups of Western Hilly Region. JNMA. 2019;57(219):323-6. [PubMed | Full Text | DOI]
Ministry of Health and Population [Nepal], New ERA, and ICF. 2023.Nepal Demographic and Health Survey 2022. [Full Text]
Mavrodisz K, Rozsa N, Budai M, Soos A, Pap I, Tarjan I. Prevalence of Accessory Tooth Cusps in a Contemporary and Ancestral Hungarian Population. Eur J Orthod. 2007 Jan;29(2):166-9. [PubMed | Full Text | DOI]
Kirthiga M, Manju, M, Parveen, R, Umesh, W. Ethnic Association of Cusp of Carabelli Trait and Shoveling Trait in an Indian Population. JCDR. 2016;10(3):78-81. [PubMed | Full Text | DOI]
Ramesh G, Nagarajappa R, Sagari S, Suma G. Comparative Assessment on the Prevalence of Cusp of Carabelli Among three Different Populations in India. Ann Bioanthropology. 2016;4(2):79-83. [Full Text | DOI]
Kamatham R, Nuvvula S. Expression of carabelli trait in children from southern India: A cross-sectional study. J Forensic Dent Sci. 2014;6(1):51-7. [PubMed | Full Text | DOI]
Hassanali J. Incidence of Carabelli’s Trait in Kenyan Africans and Asians. Am J Phys Anthropol. 1982 Nov;59(3):317-9. [ Full Text | DOI]
Falomo OO. The cusps of Carabelli: Frequency, Distribution, Size and Clinical Significance in Nigeria. West Afr J Med. 2002;21(4):322-4. [PubMed | Full Text | DOI]
Harris EF. Carabelli’s Trait and Tooth Size of Human Maxillary First Molars. Am J Phys Anthropol. 2007 Feb;132(2):238-46. [ Full Text | DOI]
Bhavyaa R, Sujitha P, Muthu MS, Nirmal L, Patil SS. Prevalence of the Cusp of Carabelli: a Systematic Review and Meta-analysis. Ann Hum Biol. 2021 Nov 17;48(7-8):572-84. [PubMed | Full Text | DOI]
Guo L, Sun DL, Ren L, Shen J, Pan KF, Shen J, et al. A Comparative Morphologic Study of Carabelli Cusp between Chinese and Japanese students. Shanghai J Stomatol. 1995 Jun;4(2):66-7. [PubMed]
Khraisat A, Taha ST, Jung RE, Hattar S, Smadi L, AlOmari IK, et al. Prevalence, Association, and Sexual Dimorphism of Carabelli’s Molar and Shovel Incisor Traits amongst Jordanian Population. OdontoStomatol Trop Trop Dent J. 2007 Sep;30(119):17-21. [PubMed | Full Text]
Dahal DR. Social Composition of the Population: Caste/Ethnicity and Religion in Nepal. Popul Monogr Nepal. 2003;1:87-135. [Full Text]