Hypodontia Causes
- Can be environmental or genetic
- May be isolated or associated with syndromes such as ectodermal dysplasia and Down syndrome

Diagnostic Method
- Dental panoramic tomograph screening is used
- Screening should be done no earlier than 9 years of age

Prevention
- No specific prevention methods identified

Treatment
- Focus on preventing tooth loss due to caries, periodontal disease, and trauma
- Requires a multidisciplinary approach involving paediatric, orthodontic, and restorative specialties
- Management varies depending on the stage of dental development

Hypodontia Overview
- Developmental absence of one or more teeth, excluding third molars
- Common dental anomaly with negative impact on function and appearance
- Rarely occurs in primary teeth, with adult second premolars and upper lateral incisors most commonly affected
- Often part of a syndrome requiring multidisciplinary treatment
- Can be classified as hypodontia, oligodontia, or anodontia based on the number of missing teeth

Signs and Symptoms
- All baby teeth should be present by age three
- Adult teeth typically erupt between ages 6 and 14, except for wisdom teeth (third molars) which erupt between ages 17 and 25
- Panoramic x-rays are taken if a tooth has not erupted by the appropriate age

Dental Features
- Microdontia, where teeth appear smaller than normal, may be present in one or more teeth
- Microdontia can be genetically linked and may be associated with ectodermal dysplasia, cleft lip or palate, or Down syndrome
- Delay in tooth development can indicate hypodontia, as the absence of an adult successor slows down the normal resorption of baby teeth roots

Misplaced Teeth
- Not mentioned in the provided content.