Orthodontic Age Calculator
Determine dental development stage based on tooth eruption patterns. Answer the questions below to estimate dental age.
Dental Development Assessment
Mandibular Central Incisors
Have the lower front teeth (central incisors) erupted?
Mandibular Lateral Incisors
Have the teeth next to the front teeth (lateral incisors) erupted?
Mandibular Canines
Have the pointed “eye teeth” (canines) erupted?
Mandibular First Premolars
Have the first premolars (bicuspids) erupted?
Mandibular Second Premolars
Have the second premolars (bicuspids) erupted?
Mandibular First Molars
Have the first permanent molars erupted?
Mandibular Second Molars
Have the second permanent molars erupted?
Diagram showing typical eruption pattern of permanent teeth in the lower jaw
Estimated Dental Age
This estimation is based on standard eruption patterns of permanent teeth.
Note that dental development can vary by ±2 years. A clinical examination
with dental radiographs is required for accurate assessment.
📊 About Dental Age Assessment
Dental age assessment is a method used by orthodontists to evaluate a patient’s developmental stage based on tooth eruption and development.
Key factors considered:
- Sequence of tooth eruption
- Stage of tooth development
- Calcification patterns visible on X-rays
- Comparison to population standards
⏱️ Typical Tooth Eruption Timeline
Average eruption times for permanent teeth:
- First molars: 6-7 years
- Central incisors: 6-7 years
- Lateral incisors: 7-8 years
- Canines: 9-11 years
- First premolars: 10-12 years
- Second premolars: 10-12 years
- Second molars: 11-13 years
ℹ️ Important Considerations
- This calculator provides only an estimation
- Actual dental development varies by individual
- Girls typically develop 6-12 months ahead of boys
- Genetic factors significantly influence timing
- Nutrition and health can affect development
- Always consult with an orthodontic specialist
Key Features:*
- Based on standard eruption sequence of permanent teeth
- Focuses on 7 key mandibular teeth
- Uses average eruption timings:
- First molars & central incisors (6-7 years)
- Lateral incisors (7-8 years)
- Canines (9-10 years)
- First premolars (10-11 years)
- Second premolars (10-12 years)
- Second molars (11-14 years)
- Run the program
- Answer "yes" or "no" for each tooth's eruption status
- Receive estimated dental age based on the most advanced erupted tooth
Important Notes:
- This is a simplified screening tool, not a diagnostic instrument
- Actual clinical assessment requires:
- Dental radiographs (X-rays)
- Physical examination
- Consideration of individual variation
- Evaluation of tooth development stages (not just eruption)
- ±2 years margin of error is common in dental age estimation
- Always consult an orthodontist for accurate assessment
For more accurate age estimation, professionals use methods like:
- Demirjian's method (tooth development stages on panoramic X-rays)
- Cervical Vertebral Maturation (CVM) on lateral cephalograms
- Hand-wrist radiographs
Would you like me to explain any specific aspect of orthodontic age assessment in more detail?