How to distinguish between pure and impure Corgis
0 Jul 26,2025
Teeth condition
19-28 days milk incisors grow in
The 3rd milk premolars erupt on 21-28 days
21-35 days milk and canine teeth grow in
The fourth deciduous premolars erupt on days 21-42
28-42 days 2nd milk premolar erupts
At 2 months old, all deciduous teeth are complete
Replacement of the 1st and 2nd incisors and permanent incisors at 3-4 months of age
Replace the first deciduous premolar at 4-5 months of age, and the permanent premolars will grow in
Canine teeth are replaced at 4-6 months of age and permanent teeth grow in
Replacement of the 2nd rear molars at 4-7 months of age and permanent teeth
Replacement of the 3rd incisor at 5-6 months of age, and permanent teeth grow in
The 2nd, 3rd, and 4th permanent premolars at 5-7 months of age are aligned
6-9 months old mandibular 3rd permanent rear molars grow in line
9-10 months old, all replacements are complete
1-year-old permanent teeth are long, white and bright, and the incisors have pointed processes
One and a half years old, the tip of the first mandibular incisor is worn
2 and a half years old, the tip of the second mandibular incisor is worn
3 and a half years old, the tip of the first maxillary incisor is worn
4 and a half years old, the tip of the second maxillary incisor is worn
At the age of 5, the tip of the third mandibular incisor begins to wear, and the wear of the first and second incisors becomes rectangular
At the age of 6, the tip of the third mandibular incisor begins to wear, the canine teeth are blunt, and the mandibular incisors are worn
At the age of 8, the first mandibular incisor begins to wear, and the grinding surface tilts forward
The grinding surfaces of the 2nd mandibular and 1st maxillary incisors at 10 years old are oval-shaped
11-15 years old, incisors are lost and the teeth are incomplete
Canine teeth loss between 16 and 20 years old