Treatment by Location

1. Within Parotid Gland

• Close parotid capsule
• Apply pressure dressing

2. Over Masseter

• Primary anastomosis

3. Anterior to Masseter

• Primary anastomosis if possible
• If impossible: Drain proximal duct directly into mouth via new opening

Dry Socket (Alveolar Osteitis)

Dry socket, also known as alveolar osteitis, is a common complication that can occur after tooth extraction, particularly after the removal of mandibular molars. It is characterized by delayed postoperative pain due to the loss of the blood clot that normally forms in the extraction socket.

Key Features

1. Pathophysiology:

   • After a tooth extraction, a blood clot forms in the socket, which is essential for healing. In dry socket, this clot is either dislodged or dissolves prematurely, exposing the underlying bone and nerve endings.
   • The initial appearance of the clot may be dirty gray, and as it disintegrates, the socket may appear gray or grayish-yellow, indicating the presence of bare bone without granulation tissue.

2. Symptoms:

   • Symptoms of dry socket typically begin 3 to 5 days after the extraction. Patients may experience:
     • Severe pain in the extraction site that can radiate to the ear, eye, or neck.
     • A foul taste or odor in the mouth due to necrotic tissue.
     • Visible empty socket with exposed bone.

3. Local Therapy:

   • Management of dry socket involves local treatment to alleviate pain and promote healing:
     • Irrigation: The socket is irrigated with a warm sterile isotonic saline solution or a dilute solution of hydrogen peroxide to remove necrotic material and debris.
     • Application of Medications: After irrigation, an obtundent (pain-relieving) agent or a topical anesthetic may be applied to the socket to provide symptomatic relief.

4. Prevention:

   • To reduce the risk of developing dry socket, patients are often advised to:
     • Avoid smoking and using straws for a few days post-extraction, as these can dislodge the clot.
     • Follow postoperative care instructions provided by the dentist or oral surgeon.

Based on Absorption

Absorbable Sutures

• Natural: Catgut (plain and chromic)
• Synthetic: Vicryl, PDS-II, Monocryl, Biosyn

Non-Absorbable Sutures

• Natural: Silk, linen
• Synthetic: Nylon, polypropylene, polyester

Based on Structure

Monofilament

• Examples: PDS-II, Monocryl, nylon, polypropylene
• Advantages: Smooth passage, less tissue drag, reduced bacterial adherence
• Disadvantages: Difficult handling, knot security issues

Multifilament/Braided

• Examples: Vicryl, silk, polyester
• Advantages: Better handling, superior knot security
• Disadvantages: Increased tissue drag, potential for bacterial harboring

Pathophysiology of Tongue Obstruction

• Mechanism: Loss of muscle tone in unconscious patients
• Gravity effect: Tongue falls posteriorly, blocks pharynx
• Risk factors: General anesthesia, sedation, head trauma
• Critical consideration: Threatens airway patency

Management Options

Non-Invasive Methods (Preferred)

Oropharyngeal Airway (Guedel Airway)

• Preferred method for tongue control
• Mechanism: Lifts tongue away from posterior pharynx
• Sizes: 000 (infant) to 5 (large adult)
• Insertion: Insert upside down, rotate 180° when reaching soft palate
• Advantages:
  • No bleeding risk
  • Easy insertion/removal
  • Maintains airway patency
  • Allows spontaneous ventilation

Nasopharyngeal Airway (Trumpet)

• Alternative: When oropharyngeal airway not tolerated
• Size: 6-8mm internal diameter for adults
• Length: Distance from nostril to earlobe
• Lubrication: Water-soluble lubricant essential
• Contraindications: Basal skull fracture, severe nasal trauma

Invasive Methods (Higher Risk)

Traction Suture

• Technique: Suture through tongue tip for anterior traction
• Risk: May cause bleeding (lingual vessels)
• Indication: When airways insufficient, surgical access needed
• Suture: 2-0 silk with curved needle

Towel Clip

• Technique: Grasp tongue with towel clips for traction
• Risk: Bleeding from tissue trauma
• Pain: Significant in conscious patients
• Use: Limited to specific surgical situations

Clinical Decision Making

• First line: Oropharyngeal airway (safest, most effective)
• Avoid: Invasive methods unless absolutely necessary
• Consider: Patient consciousness level, surgical requirements
• Monitor: Continuous assessment of airway patency

Joint Lubrication Mechanisms

Weeping Lubrication

• Occurs at high loads
• Hydrostatic pressure > osmotic pressure
• Water squeezed from extracellular matrix
• Contributes to joint surface lubrication

Boundary Lubrication

• Occurs under low loads

Cartilage Loading Physiology

• Joint movement → increased internal hydrostatic pressure
• When hydrostatic pressure exceeds proteoglycan osmotic pressure
• Water expulsion from extracellular matrix occurs

Glasgow Coma Scale (GCS): Best Verbal Response

The Glasgow Coma Scale (GCS) is a clinical scale used to assess a patient's level of consciousness and neurological function, particularly after a head injury. It evaluates three aspects: eye opening, verbal response, and motor response. The best verbal response (V) is one of the components of the GCS and is scored as follows:

Best Verbal Response (V)

• 5 - Appropriate and Oriented:

  • The patient is fully awake and can respond appropriately to questions, demonstrating awareness of their surroundings, time, and identity.

• 4 - Confused Conversation:

  • The patient is able to speak but is confused and disoriented. They may answer questions but with some level of confusion or incorrect information.

• 3 - Inappropriate Words:

  • The patient uses words but they are inappropriate or irrelevant to the context. The responses do not make sense in relation to the questions asked.

• 2 - Incomprehensible Sounds:

  • The patient makes sounds that are not recognizable as words. This may include moaning or groaning but does not involve coherent speech.

• 1 - No Sounds:

  • The patient does not make any verbal sounds or responses.