Hey, I'm back to write on the development transition of the child, I would like to add some Limelight to the Fontanelles and the Deciduous Teeth because they form the ending transition of the development portion. So there are altogether 6 fontanelles, the 'soft spot' so to speak, noticeable right on top of the baby's head. And they are positioned as follows:
FONTANELLE
- Anterior Fontanelle
- The 'soft spot' noticed on the top of the head, diameter about 2.1 cm.
- Posterior Fontanelle
- Triangular in shape located at the back of the skull, diameter less than 1cm.
- Sphenoid Fontanelle
- One on each side of the skull, position nearest to the temples.
- Mastoid Fontanelle
- One on each side of the skull, positioned lower to back of the ear.
Each of these fontanelles has a very important profile related to 4 acupuncture points located just on top of this closure. (Anterior DU22 and 23; Posterior DU18 and 19) Off course, I will be illustrating how to use it effectively to treat migraine, prolapse, just to name a few in my later blogs. I have paste 4 diagrams below, each showing the position of the individual fontanelle on the skull.
Why are these fontanelles so important?
Birth
It has to make provision for these bones of the skull to overlap each other so that the baby head can move through the birth canal.
Growth
The fontanelle provides space for brain development during the first two years of baby's life. Please go to my previous blogs to read more.
Time taken for closure of these fontanelles are as follows:
- Anterior
- Starts to close from the 6 months up to 2 years old
- Posterior
- Part of fontanelle close from 2 to 4 months, (some already closes on birth)
- Sphenoid
- By the 6 months
- Mastoid
- By 6 months, complete by 12 to 18 months
Indications or Clues
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A child has 2 sets of teeth:
- Deciduous
- Permanent
- From 5 to 10 months
- 4 deciduous teeth
- 1 year old
- 8 deciduous teeth
- After 1 year old
- 2 upper and 2 lower molar
- 1 1/2 years old
- Canine erupted
- 2 years old
- 2nd molar erupted
- 20 to 30 months old
- Completed 20 deciduous teeth
- After 6 years old
- Deciduous start to loose and permanent replaced
- 1st permanent molar erupted
- After 12 years old
- 2nd molar erupted
- 12 to 15 years old
- Completed with 28 permanent teeth
- 17 to 30 years old(adolescence to adult)
- 3rd molar may or may not erupt(wisdom tooth)
Best of all,
Xiong