Teething teeth usually begin at the age of six months. Children’s teeth come in at different times, but as a parent, it’s good to know the timeframe of when this is likely to happen. Firstly:
The central incisors (4-12 months) that have the widest incubation range; lateral incisors (7-10 months) first molars (12-16 months) canines (16-20 months) and second molars (20-30 months)
Order and date of eruption of the permanent teeth: first permanent molar (6-7 years); Central and lateral lower incisions (7-6 – and 8-7 years); Central and lateral upper incisors (6-7 and 8-7 and 9-8 years); Lower canine (9-11 years); Upper and lower jaws (10-12 years); Upper dialect (11-12 years); Second molar (12-13 years); Third molar (17-22 years).
Usually the teeth in the mandible erupt before the teeth in the maxilla, and in the girls before the boys. The loss of deciduous teeth occurs about six months before the date of hatching of the permanent marriages.
The permanent jaws erupt in place of the drooping molars, and the permanent molars erupt posteriorly to the deciduous molars. In later years, if their teeth aren’t correctly aligned or they have issues, they may need to consider Dental Implants.
DISORDERS IN TOOTH DEVELOPMENT
Disorders at the initiation stage may result in excess or lack of teeth.
Disorders of histo-differentiation and morpho-differentiation can cause a change in the size of the tooth (too large or too small), the thickness of the enamel (thin enamel) and its shape (such as the invention of grooves on the enamel surface).
Disorders in the calcification stage can lead to a reduction in the strength and quality of the enamel. The enamel may be more porous and milky white, yellow or brown. In severe calcification disorder, the enamel will be soft and break easily.
In these cases, the tooth may be sensitive to temperature changes and prone to the development of rapid and destructive caries.
DISORDERS IN THE NUMBER OF TEETH
Minority or lack of teeth (Oligodontia): congenital deficiency of at least six teeth (excluding lack of wisdom teeth);
This finding is particularly common in syndromes such as ectodermal dysplasia, where there is also a disturbance in the shape of the teeth and other ectodermal tissues such as hair, skin and nails. However, there may be a lack of a few teeth (Hypodontia) as a single and local finding, such as in cleft lip or as part of a syndrome.
The prevalence of the phenomenon (excluding wisdom teeth) ranges from 2-6% in the various populations in the world, and in more girls. The missing teeth in high frequency and in descending order are: wisdom tooth, upper lateral incision, and a second jaw in the lower jaw.
Excess teeth usually develop in the cutting area of the maxilla. These teeth can interfere with the eruption of nearby permanent teeth. Therefore, early diagnosis and disposal are important.
Dental excess is common in Gardner Syndrome, Orofacial Digital and cleft palate. In Cleidocranial Dysplasia, and in Hallermann-Stiff Syndrome, a lack or excess of teeth can be found.