Pretend you are a teacher preparing a quiz for the text I will provide. 
            Each quiz question should follow the format below. 
            Ensure that you carefully recheck the questions and answers for accuracy. 
            The output should be a ready-to-use list of dictionaries for the Python eval function:

            [

                    "question": "WRITE THE QUESTION HERE",
                    "options": ["A) OPTION_1", "B) OPTION_2", "C) OPTION_3", "D) OPTION_4"],
                    "answer": INDEX_OF_CORRECT_ANSWER_IN_OPTIONS_LIST,
                    "explanation": "EXPLAIN WHY THE ANSWER IS CORRECT"

            ]

            Text:
            iac monitoring units are available for in-office use. 
 
 
 
 
12
 
 
• Patients whose vital sign measurements are outside normal ranges should be 
referred for a comprehensive medical evaluation  
before definitive prosthodontic treatment is initiated.  
B. Extraoral Examination  
• Special attention is given to facial asymmetry  
because small deviations from normal → may hint at serious conditions.  
• Cervical lymph nodes, the muscles of mastication, &TMJs are palpated. 
 
1. Temporomandibular Joints  
• The clinician locates the TMJs by palpating bilaterally 
just anterior to the auricular tragi while the patient opens & closes the mouth.  
• This enables a comparison between the relative timing of left & right condylar 
movements during the opening stroke.  
• Asynchronous movement may indicate a disk displacement that  
prevents one of the condyles from making a normal translatory movement.  
• Auricular palpation with light anterior pressure helps identify potential disorders 
in the posterior attachment of the disk.  
  
 
• Tenderness or pain on movement is noted & can be indicative of inflammatory 
changes in the retrodiscal tissues, which are highly vascular & innervated.  
• Clicking in the TMJ is often noticeable through auricular palpation, 
X but may be difficult to detect in palpation directly over the lateral pole of the 
condylar process, because the overlying tissues can muffle the click.  
✓ By placing the fingertips on the angles of the mandible,  
the clinician can identify even a minimal click  
because very little soft tissue lies between the fingertips & the mandibular bone.  
13
 
 
• A maximum mandibular opening resulting in  
< 35 mm of interincisal movement is considered restricted,  
because > 50 mm is the average opening.  
• Such restricted movement on opening can be indicative of intracapsular changes in 
the joints.  
• Similarly, any midline deviation on opening or closing is recorded.  
• The maximum lateral movements can be measured (normal is about 12 mm).  
 
 
 
2. Muscles of Mastication  
• Next, the masseter & temporal muscles, as well as other relevant postural muscles, 
are palpated for signs of tenderness. 
 
 
 
• Palpation is best accomplished bilaterally & simultaneously.  
• This allows the patient to compare & report  
any differences between the left & right sides.  
14
 
 
• Light pressure should be used (the amount of pressure that can be tolerated without 
discomfort on one’s closed eyelid is a good comparative measure),  
& if any difference is reported between the left & right sides,  
the patient is asked to classify the discomfort as mild, moderate, or severe.  
• If there is evidence of significant asynchronous movement or TMJ dysfunction, 
the clinician should follow a systematic sequence for comprehensive muscle 
palpation as described by Solberg (1976) & Krogh-Poulsen & Olsson (1966).  
• Each palpation site is scored numerically on the basis of the patient’s response.  
• If neuromus

            Quiz: