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Variability in upper lip posture to overjet changes in 12-year-old Nigerian children
1Department of Preventive Dentistry, College of Health Sciences, Obafemi Awolowo University, Ile-Ife, Nigeria.
African Dental Journal : Official Publication of the Federation of African Dental Associations = Journal Dentaire Africain
|January 1, 1996
Summary
This study examined 1,016 Nigerian children, finding Jackson class 3 as the most common upper lip posture. Overjet values were typically normal, with little significant relationship to lip posture.
Area of Science:
- Dentistry
- Orthodontics
- Pediatric Oral Health
Background:
- Upper lip posture is a key factor in facial aesthetics and dental occlusion.
- Understanding the relationship between lip posture and overjet in children is crucial for orthodontic diagnosis.
- Previous research has explored these factors, but data from specific populations like Nigerian children is limited.
Purpose of the Study:
- To assess upper lip posture in 12-year-old Nigerian primary school children.
- To determine the prevalence of different overjet values in this population.
- To investigate the relationship between upper lip posture and overjet variations.
Main Methods:
- A cross-sectional study involving 1,016 Nigerian primary school children aged 12 years.
- Assessment of upper lip posture using Jackson's criteria.
- Measurement of overjet values to categorize them into different ranges.
Main Results:
- The most prevalent upper lip posture was Jackson class 3, observed in 72% of the children.
- Jackson classes 0 and 1 were uncommon.
- A normal overjet value (2-4 mm) was present in 82% of the study sample.
- A statistically insignificant relationship was found between variations in overjet and upper lip positions.
Conclusions:
- Jackson class 3 represents the typical upper lip posture among 12-year-old Nigerian children.
- The majority of children exhibited normal overjet values.
- Overjet variations showed minimal correlation with upper lip posture in this cohort, suggesting other factors may influence lip positioning.