Prof.Dr. Ahlam El-Sharkawy Head of prosthodontic departement Pharos University in Alexandria Pharos...

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Prof.Dr. Ahlam El-Sharkawy Prof.Dr. Ahlam El-Sharkawy Head of prosthodontic Head of prosthodontic departement departement Pharos University in Pharos University in Alexandria Alexandria

Transcript of Prof.Dr. Ahlam El-Sharkawy Head of prosthodontic departement Pharos University in Alexandria Pharos...

Page 1: Prof.Dr. Ahlam El-Sharkawy Head of prosthodontic departement Pharos University in Alexandria Pharos University in Alexandria.

Prof.Dr. Ahlam El-SharkawyProf.Dr. Ahlam El-SharkawyHead of prosthodontic Head of prosthodontic departementdepartement

Pharos University in Pharos University in AlexandriaAlexandria

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Dr. house

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•In general, posterior denture base flange should be at least 2mm thick and should

display rounded borders.

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Costen’s Syndrom

1 -Vestibulo – cochlear Nerve ( 8th cranial nerve)

2 -Chorda Tympani Nerve(Branch from Facial Nerve-7th c.n)

3-Auriculo-Temporal Nerve(Branch from Mandibular n . which is Branch from Trigeminal n. 5th c.n(

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I – Otological Symptoms :

Pressure on Vestibulo-Cochlear n.

1 -Tinnitus2 -Mild Catarral Deafness

3 -Vertigo

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II – Oral SymptomsPressure on Chorda Tympani

1 -Burning Sensation in the ant. 2/3 of the Tongue

2 -Metalic Taste

3 -Xerostomia

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III – T.M.J and Peri auricular Symptoms

Pressure on Auriculo-temporal n.

1 -Pain in T.M.J

2-Pain in the Ear

3-Pain in the Periauricular Region

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1 -labial Sound2 -Dental Sound

3-Labio-dental Sound4-Linguo-dental Sound5 -Linguo Palatal Sound

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-It results from contact between upper and

-lower Lips to pronounce-: [ B,P,M]

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-Result from Relation Between Incisal Edge Of Upper ant. Teeth

and Lower ant. Teeth to Pronounce ( S )

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Result from Contact Between Lower Lip and Incisal Edge of Upper ant.

Teeth to Pronounce ( F , V )

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Result from Contact Between Tip of Tongue and Incisal Edge of

Upper anterior Teeth to Pronounce ( Th )

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-Results from: A- Contact Between Tip of the Tongue and ant. Part of the palate to Pronounce ( T , D )

B- Contact Between Tip of the Tongue and Middle Part of the Palate to Pronounce ( H )

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Lisping---whistling

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