cracking of my jaw when chewing without pain

What is jaw popping?

Jaw popping can be a painful sensation that’s caused by dysfunction of the temporomandibular joints (TMJ). These joints connect the jawbone to the skull, with one joint on each side. The hinge action of the temporomandibular joint is responsible for your ability to chew, talk, and yawn. When the joint doesn’t work properly, popping can occur
The term TMJ is used both to refer to the joint and to the disorder. The disorder is also referred to as TMD and TMJD

What causes jaw popping?

You might experience jaw popping and TMJ if you
chew gum too often
bite your fingernails
grind your teeth
clench your jaw
thrust your jaw out
bite your lip or cheek
Frequently performing these behaviors can cause wear and tear on the joints, which can lead to erosion
Jaw popping is generally not a cause for concern if there isn’t any jaw pain with it. However, certain underlying causes for the popping can create a TMJ condition that needs medical attention. These causes can include
Arthritis
Broken or dislocated jaw
Malocclusion of the teeth
Myofascial pain syndrome
Infection
Tumor

How is jaw popping treated?

Your doctor may prescribe at-home remedies to help alleviate your TMJ. Home remedies may include
applying an ice pack or moist heat to the jaw
taking nonsteroidal anti-inflammatory drugs (NSAIDs) such as acetaminophen (Tylenol) and aspirin, antidepressants, or muscle relaxants
eating soft foods
wearing a night guard or splint
performing TMJ-specific exercises
Your doctor may also suggest that you undergo medical treatment, such as
corrective dental treatments
ultrasounds
trigger point injections
radio wave therapy
transcutaneous electrical nerve stimulation
Surgery is sometimes an option, but only if other treatments have been unsuccessful. Relevant surgeries include
arthrocentesis : remove fluid from the joint
open-joint surgery
arthroscopy