DA qq

[docdk]

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1] inability to open the mouth in the Trismus is due to which muscle of mastication???

2] in left lateral excursion , the ML cup of 14 will pass through ??

 

[briansle]

1] inability to open the mouth in the Trismus is due to which muscle of mastication???

2] in left lateral excursion , the ML cup of 14 will pass through ??

1) I remember that out of all the muscles of mastication, only one actually lowers (opens) the jaw. All the others elevate (close) the jaw. I believe the one that drops the jaw is the lateral pterygoid. I'm totally guessing here. Just so you know.

2) The easy way to tackle these questions is drawing the 4 W's technique. I think it passes between the DL & ML of 19. The central lingual groove?

 

[docdk]

ya the 2 ans is rite ... but can u plzzz explain m how 2 solve such questions ?? wat is this technique

 

[burnish33]

I'm also wondering what this "4 Ws" technique is.........

 

[docdk]

n 1ans the key says Medial pterygoid muscle...no idea

 

[docnc]

1] inability to open the mouth in the Trismus is due to which muscle of mastication???


is this question is complete.if this question is related to local anaesthesia , then answer should be medial pterygoid muscle cause if the needle will prick to the medial pterygoid muscles and will deposit LA over there then it will lead to transient trismus...

2] in left lateral excursion , the ML cup of 14 will pass through ??[/quote

in normal occluding position ML cusp of 14 wll pass through the central groove of the 19..but in lateral excursion ML cusp will pass through the lingual groove of 19....

correct me if i am wrong...

 

[docdk]

ya u r rite .. lingual groove
n if the movt was right lateral , ML cusp of 14 would pass thru??? [how 2 solve these q's]

 

[docnc]

ya u r rite .. lingual groove
n if the movt was right lateral , ML cusp of 14 would pass thru??? [how 2 solve these q's]

for right lateral movement, it would be non working..