A Cross–sectional Study of Eruption Time of Primary Teeth in South Indian ChildrenCorrespondence Address :
C/o Chinmayee Dental Care and Orthodontic Centre, Bangalore, Karnataka, India.
Introduction: Eruption chronology of primary teeth can be a very valuable asset in the diagnosis and treatment planning of children in the field of dentistry.
Aim: The present study aimed to determine the mean eruption time and sequence of eruption of primary teeth in South Indian children.
Materials and Methods: This cross-sectional study from September 2017 to December 2018 involved a random sample of 954 South Indian children (452 boys and 502 girls) aged six to thirty-six months. The mean age of eruption for each tooth was calculated using the Karber method, as modified by Hayes and Mantel. The student t-test was used to assess possible differences in the mean age of primary teeth eruption between males and females for both the maxilla and mandible.
Results: The mandibular central incisors were the first teeth to erupt with an overall mean eruption time of 10.3Â±0.6 months.Girls displayed significant earlier eruption of first primary molar in both the maxilla and the mandible (p<0.05).
Conclusion: South Indian children experienced delayed eruption of primary teeth when compared to their counterparts in other populations. Data from the present study can be used as a reference. The mean age of eruption was 10.2±0.79 months in boys and 10.4±0.38 months in girls. All the teeth, except canines and first molars emerged earlier in the mandible in both the genders.
Children, Chronology, Deciduous teeth, Eruption sequence, Tooth eruption
Date of Submission: Nov 19, 2019
Date of Peer Review: Dec 10, 2019
Date of Acceptance: Jan 09, 2020
Date of Publishing: Feb 01, 2020
• Financial or Other Competing Interests: No
• Was Ethics Committee Approval obtained for this study? Yes
• Was informed consent obtained from the subjects involved in the study? Yes (from parents)
• For any images presented appropriate consent has been obtained from the subjects. NA
PLAGIARISM CHECKING METHODS:
• Plagiarism X-checker: Nov 20, 2019
• Manual Googling: Jan 02, 2019
• iThenticate Software: Jan 20, 2020 (19%)
Etymology: Author Origin
- Emerging Sources Citation Index (Web of Science, thomsonreuters)
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- Popline (reproductive health literature)