2 Things You Must Know While Administering Inferior Alveolar Nerve Block

2 Things You Must Know While Administering Inferior Alveolar Nerve Block

An Inferior Alveolar Nerve Block is the most common dental nerve block that anesthetizes half of the mandible, including teeth, bone & buccal mucosa over the lower canine, incisors, first premolar, ipsilateral lower lip, and chin. Painless dentistry is in demand, and patients are uncomfortable and in pain when the local anesthesia is ineffective. So we need to learn the technique of administration very well. 

The inferior alveolar nerve block is itself problematic and requires tips and tricks to be learned to be effective. If your anesthesia is effective, you will not face any complications in your surgery further. 

Here I am not going to explain the technique of administration of IANB, and I am explaining the two things you must know while administering IANB.

Know The Anatomy Well

The very first thing is to know the anatomy well. Anatomy differs from person to person. So you need to know the landmarks and anatomy. The angle of the ramus, the position of the nerve in pterygomandibular space, placement of pterygomandibular raphe is not the same for every patient. The needles have to be placed in the mandibular foramen and should hit the medial surface of the mandible. The solution has to be deposited over the nerve that lies in the mandibular foramen.

If the needle is not positioned correctly in the foramen, it will never hit the medial surface of the ramus.

Sometimes there may be bifid nerve or accessory innervation for the failure of the nerve block. Even if we follow our textbook correctly, we must know that practical things are quite different from theoretical knowledge.

Wait For Enough Time For Your LA To Be Effective 

Most of you are in a hurry to complete our patients quickly, and you do not wait for enough time for our LA to be effective. You should at least wait for 5-6 mins for your LA to be effective. Talk to your patients, reduce their anxiety, or prepare for the surgery in the meantime. By doing so, you give enough time for LA to be effective. Even if your LA is not over the nerve, it can flow towards the nerve if deposited into pterygomandibular space.


Local anesthesia can be effective only when it is deposited in the proper place and given adequate time to be effective.  You should refrain from injecting LA again and again as it can show adverse effects. You should learn the proper techniques and skills from your textbooks, YouTube, seminars, and observe your seniors working on patients. This can reduce your fear and help you in your clinics. If you want to learn more techniques and master yourself, join Dental Academy, we provide the best dental courses in Delhi.

Author: vikas

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