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53 Cards in this Set
- Front
- Back
CELLULITIS |
A diffuse erythematous submucosal or subcutaneous infection . |
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ABSCESS |
A thick - walled containing pus . |
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" A PHLEGMON " |
is the diffuse pus formation without demarcation . |
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Causes Of Oral Infections I |
ı - Odontogenic Causes Il - Traumatic Causes III - Chemical Causes - IV General Systemic Diseases |
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Odontogenic Causes |
1 - Periapical infection from non vital tooth or roots 2- Deep periodontal pockets 3- Pericoronitis 4 - Infected dental cysts 5- Odontogenic tumors |
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Traumatic Causes |
1.use of surgical burs : 2.Pressure type of anesthesia. 3.Compound fracture of the jaw |
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Chemical Causes |
arsenic used for pulp mummification |
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General Systemic Diseases |
1- Blood dyscrasias 2- Uncontrolled diabetes 3- Nutritional disorders 4- Endocrine disturbances 5- Malignancies 6 - Immunological disorders |
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Fate Of Oral Infections |
1.Resolution 2.Fluctuation 3.Extension 4.Chronicity |
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Propagation Of Dental Infections |
1.by direct continuity. 2.Through lymphatic vessels. 3.By the the veins . |
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diagnosis of abscess formation |
1 .Cardinal symptoms of inflammation . 2. Fluctuation & localization . 3. Identification of the causative agent |
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pericoronitis definition type |
It is the inflammation of soft tissues covering the crown of partially erupted or unerupted tooth . It is most common around the mandibular 3rd molars . 1. Infancy & childhood . 2. Young adulthood . 3. Old Age . |
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Treatment of pericoronitis |
conservative odontectomy operculectomy |
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Advantages of removing operculum by electroscalpel : |
1. minimal trauma . 2.minimal bleeding during operation. 3.Risk of spread of infection is minimal . 4. minimal post - operative pain & discomfort . |
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complications & spread the infection may spread to : |
Posteriorly
parapharyngeal & spaces Pterygomandibular
Lateral > Para Submasseteric space
Downward Submandibular space |
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causes of acute dento alveolar abscess |
1- Necrotic pulp of a dead tooth or root . 2- Deep periodontal pockets 3- By blood stream |
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shows the classic signs of inflammation : |
1.Swelling 2.dolor 3.Calor 4.Rubor 5.Functio laesa 6.Fluctuation |
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Types of Acute Dentoalveolar Abscess |
1- Acute dentoalveolar abscess without soft tissue involvement ( Early stage ) . 2- Acute dentoalveolar abscess with soft tissue involvement ( Late stage ) . |
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natural progression of odontogenic infections etiology |
1. Periapical : as a result of pulpal necrosis ( most common ) . 2. Periodontal : as a result of a deep periodontal pocket. 3 - Extension of infection from adjacent infected tooth . 4 - Hematogenous ; i.e. through the blood stream in patients with bacteremia or septicemia . |
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The location of the infection from a specific tooth is determined by the following 2 major factors : |
1- The thickness of the bone overlying the apex of the tooth & 2- The relationship of the site of perforation of the bone to muscle attachments of the parmaxilla & the mandible . |
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►If the infection has eroded through the labial to the aspect INFERIOR attachment of the buccinator muscle , it will lead to infection that appears as |
vestibular abscess |
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If the infection has eroded SUPERIOR to the attachment of the buccinator muscle it appears as an infection of the |
buccal space |
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Early stage of... acute deno definition |
it is suppurative type of inflammation involving primarily the Atooth & its alveolar bone . |
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signs and symptoms of acute dento alveolar abscess سؤال سابق |
1- Elongation of the tooth.
2- Severe tenderness of the tooth to touch and during mastication .
3 . " throbbing " pain.
4 - general symptoms of inflammation .
5 - Lymphadenitis . |
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TREATMENT AIM OF TREATMENT : of Early stage |
1. Draining the mass of pus at the periapiacl tissues .
2. Removal of the cause of infection .
3.Raising body resistance & helping it to overcome the invading organisms . |
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signs & symptoms Late stage |
1- Dull pain : 2 Soft tissue swelling. 3 - Facial cellulitis . 4 - The skin over the region is tender to palpation , tense , hard , red & hot . 5 - General symptoms of inflammation . 6- lymphadenitis . |
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aims of treatment of early and late stage |
1.Evacuation of the Emprisoned pus 2 - Extraction of the causative tooth 3- Adequate antibiotic therapy . |
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Fascial space Infections Maxillary Spaces ► Mandibular spaces |
Maxillary Spaces 1- Base of upper lip 2 - canine fossa 3. Buccal space 4.Palatal space 5.Postzygomatic & infratemporal space Mandibular spaces 1 - Pterygomandibular 2 - Submandibular 3 - Sublingual 4 - Submental 5 - Submasseteric 6 - Parapharyngeal 7 - Parotid |
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1- Abscess of Base Of Upper Lip Causes : clinical signs & symptoms: D. D |
سبب بـ Infection from upper Incisors
1- Edema & cellulitis of the upper lip unilateral bilateral.
2- swelling of the entire lip .
3- Swelling of the side of the nose and lower eyelid 1- Congenital: 3 - hypersenstivity: 2- Traumatic: 4- Benign neoplasms or cysts
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canine fossa caused by |
infection from upper canine and premoler |
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treatment of abscess of the upper lip & canine fossa +buccal space
+palatal space +infra temporal space |
1 - Incision & drainage : 2 - Removal of the cause :
نفسهم غير period of drainage ما تفوتش تلاته ايام |
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3 - Abscess of the Buccal space Causes clincal signs |
Spread of infection from the upper molars . 1- Moderate swelling of the cheek . 2- ( gum boil ) . 3- Submaxillary and intratemporal spaces may be Affected , |
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Palatal space Causes |
1- caused from infected lateral incisor because it has a curved root . 2 - Periodontal abscess from a palatal pocket . 3 - Apical abscess from palatal root of multirooted teeth . |
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4.abscess of infratemporal space caused by |
1 - Pericoronal infection of the mandibular 3rd molar Infection space . 2 - Infection of maxillary teeth buccinator muscle . |
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Clinical signs of infra temporal space |
1- Severe pain aggravated by opening duo Involvement of temporalis & medial pterygold muscles . 2- Deviation of the jaw toward the affected side 3.Difficulty in swallowing . 4 - Swelling of the eyelids 5- Trismus. 6- fever malaise 7- Headacke , irritability , vomiting 8 - Neck stiffness |
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2. submandibular space caused by |
1- Infection from lower molars particularly the 3rd molar and the 2nd molar 2- Fracture of the angle of the mandible . 3- Backward extension from submental space or sublingual space . 4 Lymphatic spread from submandibular lymph nodes . |
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1.pterygomandibular space caused by سؤال سابق |
1.infection from lower molar 2.infection from upper molar 3. contaminated needle during IAN B 4.contaminated needle during posterior superior alveolar n injection |
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3. sublingual space caused |
-Odontogenic infection from lower incisors , canine or premolars |
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4 - Submental space Causes |
1-Odontogenic infection from lower anterior and premolars below the myelohyoid muscle . 2-Lymphatic spread from submental lymph nodes . |
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5-sub masseteric space caused by |
1- Infected lower molar particularly 3rd molar 2- Fracture ramus of the mandible . |
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5 - Parapharyngeal space ★ ♠Causes ممكن سؤال حسب رايي |
1- infection around a lower 3d molar ( eg pericoronitis )
2 - Backward sprea submandibular or sublingual space infections .
3 - Posterior spreading of infection from Pterygomandibular space .
4 - Downward spreading of infection from Infratemporal space to Pterygomandibular space to parapharyngeal space . |
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♜ludwing's angina definition and signs and symptoms |
It is a diffuse facial cellulitis of the submental sublingual & submandibular spaces bilaterally .
1.massive hard facial swelling 2.patients has open mouth. 3.tongue is raised from mouth. 4.difficult to speech and saliva run from mouth 5.general sever symptoms 6.difficult to respiration 7.dehydration&tired 8.suffocation and death may occur. |
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Treatment ludwing s angina |
1- Hospitalization: a - Dehydration control b- Massive antibiotics c - Tracheostomy d - Extraoral hot application 2- Incision & Drainage: 3- Postoperative care: |
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osteomylitis definition |
It is the inflammation of bone produced by pyogenic organisms It involves the cancellous bone , bone marrow blood vessels & the fibroblastic tissue to the periosteum the cortical bone |
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Etiology of osteomylitis |
1 - Odontogenic causes 2- Traumatic causes 3- Chemical causes 4- Following radiation therapy 5 - Haematogenous infections |
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1- Odontogenic causes of osteomylitis |
1.Periapical infection > 2.Pericoronal infection 3.Periodontal infection 4.Infection from odontogenic cyst or tumors 5.Residual infection 6.Dry socket |
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Osteomyelitis It is more common in the mandible then in maxilla because |
1- Less blood supply 2.Dense cortical plate & wide spongiosa 3.More exposed to trauma |
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- The sequestrum of osteomyelitis are characterized by : |
Hard Rough Porous Lighter in color Due to the deposition of calcium |
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treatment of osteomylitis |
1- Massive effective antibiotics 2- Complete bed rest 3- General supportive therapy 4- Incision & drainage 5- Sequestrectomy. 6- Saucerization 7- Decorticetomy 8- Remodelling of the jaw bones |
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♕Garre's Osteomyelitis definition treatment |
It is a peripheral periosteal bone apposition caused by mild irritation and infection .
remove caustive factor extraction ir RCT |
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treatment of 1.chronic periapical abscess 2.periapical granuloma |
RCT منغير apicectomy extraction of tooth RCT مع apicectomy and curettageextraction of tooth |
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apicectomy indication contraindications |
it is surgical removal Of pathologically the root apex and tight closure root canal or canals .
1- Periapical pathological lesion . 2- Perforations of root apex 3- Breakage of a file in apical area 4- Fracture of root apex 1- Deep periodontal pockets and 2.extensive mobility 3.- Approximation of the apex to the maxillary sinus or inferior alveolar canal .ك 4- Patient with a systemic disease |
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Odontogenic Infections Of The Maxillary Sinus |
1- Maxillary Sinusitis a- Acute b- Chronic 2- Mucus - Retention Phenomenon 3- Oroantral Communications 4- Neoplastic & Cystic lesions |