The Articulation Point المخرج al-Makhraj of ض
The articulation point of ض is from the حافة (side or edge from the back all the way to the tip) of the tongue, along with what is adjacent to it of the upper molars.
In the video, you will see a diagram of the roof of the mouth with parts of it coloured in blue square dots and parts in yellow. All of the coloured area makes contact during the articulation of ض, but the yellow area at the front makes contact without pressure, and the blue area makes contact with pressure:
- YELLOW = contact area without pressure, just touching
- BLUE = contact area with pressure
Here is a demonstration of what we just mentioned:
The next picture shows the different teeth involved more clearly. They are in different colours too, as follows:
- Red & Green = Incisors
- Cream/Light Green = Canines
- Blue & First Yellow = Premolars
- Next 2 Yellow = Molars
- Light Blue = Wisdom Teeth
The area at the front which the tongue makes contact with is in green and the area where the tongue makes contact with pressure is in red. Notice the area of pressure is all the way along the teeth including the premolars (teeth in blue). And the area of contact without pressure is from the canines onwards up to the incisors on each side of the tongue.
This difference is important, because if we were to put pressure at the area at the front, we would end up pronouncing a full-mouth or heavy د (daal). And there is no such thing as a full-mouth daal in the Arabic Language, as daal is light. (The Sheikh demonstrates this wrong way at 1 min 42 seconds of this video)