The effect of birth weight on tooth development by Demirjian's method

Area of Science:

• Pediatric Dentistry
• Human Growth and Development
• Dental Anthropology

Background:

• Birth weight is a critical indicator of neonatal health and development.
• Variations in birth weight, including low birth weight (LBW) and very low birth weight (VLBW), may potentially influence various physiological processes, including dental maturation.
• Understanding these influences is crucial for pediatric health assessments.

Purpose of the Study:

• To investigate the relationship between birth weight categories (Normal Birth Weight, Low Birth Weight, Very Low Birth Weight) and tooth development in children.
• To compare dental age with chronological age across different birth weight groups in 7-8-year-old children.

Main Methods:

• A retrospective cohort study involving 75 children aged 7-8 years.
• Children were classified into Normal Birth Weight (NBW), Low Birth Weight (LBW), and Very Low Birth Weight (VLBW) groups.
• Dental age was assessed using Demirjian's 8-teeth method on panoramic radiographs, and compared to chronological age using One-way ANOVA and chi-square tests.

Main Results:

• The mean difference between dental and chronological age was slightly higher in VLBW (0.22 years) and LBW (0.19 years) groups compared to the NBW group (0.08 years).
• This trend of decreasing age difference with increasing birth weight was not statistically significant (P=0.55).
• No significant differences in tooth development were found between the birth weight groups (P=0.529) or genders (P=0.191).

Conclusions:

• Birth weight, within the studied categories, does not appear to be a significant determinant of tooth development in children aged 7-8 years.
• The findings suggest that other factors may play a more prominent role in dental maturation during this age range.
• Further research with larger cohorts and diverse populations is warranted to explore potential subtle effects or long-term impacts.