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Polymorphism in emergence of deciduous dentition: A cross-sectional study of Indian children
Pratik Kariya1, Shobha Tandon2, Sweta Singh3
1Department of Paedodontics and Preventive Dentistry, KMSDCH, Sumandeep Vidyapeeth, Vadodara, Gujarat, India.
Insights
This study tracked deciduous tooth eruption in Indian children, finding the mandibular central incisor erupts first around 8 months. Eruption timing in Indian children is delayed compared to Western populations.
Area of Science:
- Pediatric Dentistry
- Human Growth and Development
Background:
- Deciduous tooth eruption patterns provide insights into child development.
- Establishing normative data for specific populations is crucial for identifying developmental deviations.
Purpose of the Study:
- To determine the eruption timing and sequence of deciduous teeth in Indian children.
- To compare eruption patterns with existing international data.
Main Methods:
- A cross-sectional study involving 400 Indian children aged 5-36 months.
- Data collected by a trained examiner recording tooth presence/absence.
- Probit model used for mean age of emergence calculation; t-test for significance.
Main Results:
- The deciduous mandibular central incisor was the first to erupt (mean age 8.15±1.69 months).
- Girls exhibited delayed eruption compared to boys, with no interarch variation.
- The sequence of eruption aligned with previous studies.
Conclusions:
- A chronological eruption table for deciduous teeth in Indian children was established.
- Deciduous tooth eruption in Indian children was found to be delayed relative to Western populations.
Aim:
The aim of the present study was to evaluate the timing and sequence of the eruption of deciduous teeth in Indian children.
Method:
This cross-sectional study focused on children aged 5-36 months. One hospital was randomly selected from four geographic zones of the city. A total of 400 children from each hospital, fulfilling the inclusion criteria, constituted the sample. The examination was carried out by a single, trained examiner. The tooth was recorded as "present" or "absent" on the day of examination. The mean age of emergence was calculated using a probit model. Independent sample t-test was used to assess the statistical significance of differences in the mean age of tooth emergence.
Results:
The deciduous mandibular central incisor was the first tooth to erupt in the oral cavity (8.15±1.69 months). Girls showed delayed eruption compared to boys; however, no interarch variation was observed in the mean age of tooth eruption. There was also no difference in the sequence of eruption of deciduous teeth, as reported in other studies.
Conclusions:
The present study establishes a chronological table for the eruption of deciduous teeth in Indian children. There was delayed eruption of deciduous teeth when compared to the reference ranges of Western populations.
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