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Is it necessary to always get one or multiple X-rays for the diagnosis of root canal treatment? Are there other reliable ways to get to a correct diagnosis without the use of X-rays.

Diagnosing the need for root canal treatment can be done in multiple ways but one of the most effective and foolproof ways to do it is by the use of X-rays. Digital sensors mean that the image recorded is displayed in seconds and shows without any doubt whether the tooth decay has reached the pulp or not. Even cracks, chips in the tooth, or breaks after injury can be seen with the help of an X-ray.

The question now remains whether a dentist can reliably diagnose the need to root canal treatment without an X-ray? Pregnant women are advised not to undergo X-ray exposure or may refuse it of their own will. There are rural parts of Asia, Africa, and other parts of the world where dental facilities are very basic and access to an X-ray machine may not always be possible.

What does the dentist do in such cases?

Can your dentist diagnose a root canal treatment without X-ray?

The short answer to this question is yes. Dentists should be able to diagnose the need for root canal treatment through a through dental history, clinical examination, and relying on the accumulated experience of treating several such cases over the years.

Let us look at the different aspects in greater detail.

Diagnosing a root canal treatment through a thorough dental history

Listening to the patient can often provide most of the answers that a dentist is looking for. This is very important in all of the medical practice including dentistry. Patients can find it difficult to pinpoint the origin of pain in their mouth. The upper and lower teeth are closer together than most people anticipate and the pain can also be referred to different parts of the jaw.

Complaints from the patient about pain on having hot food or beverages are a strong indicator that there is a tooth that requires root canal treatment. If the complaint is just about sensitivity to cold and sweet food then there is better than decent chance that root canal treatment is not yet required in the affected tooth.

If the patient also reports an increase in pain during the night or lying down in general then the affected tooth is likely to need root canal treatment. An increase in pain on a change in pressure is indicative of the fact that the pulp has been involved and requires to be treated.

Perhaps the best indicator of root canal treatment is a complaint of pain radiating to different parts of the jaw. The dentist can safely assume that the decayed tooth in question requires to be root canal treated even without access to a confirmatory X-ray.   

Diagnosing a root canal treatment through clinical evaluation

The decision on whether a tooth needs root canal treatment or is almost always conducted on the basis of clinical evaluation of the tooth. The dentist should be able to visually inspect the tooth, apply pressure to it to gauge the reaction of the patient, and probe the decayed part to see if that elicits any pain or not.

A tooth where the majority of the portion has got decayed is going to need root canal treatment even if there are no other symptoms at the moment when the patient has come for treatment.

Tenderness and discomfort on the application of pressure of the tooth is another very dependable sign that the dentists can depend on to make the diagnosis of root canal treatment.

In cases where the tooth decay progresses from the side of the tooth, visual inspection of the decayed portion is difficult. An affected toot may not be displaying signs of tenderness just yet either. In such a case, the dentist can take a sharp probe and actually ‘poke’ the tooth through the gap between the teeth. If the decay has reached the pulp then there is a good chance the patient will feel a sudden jolt of pain.

It is uncomfortable for the patient but in 50 percent of cases without access to an X-ray, it can help the dentist arrive at the right diagnosis.

Another clear clinical situation where the dentist is able to diagnose the need for root canal treatment is when there is a crack or a break. If there is a vertical crack extending into the root of the tooth then it will have to be extracted, however, if the crack is horizontal in nature and does not include the roots then it can be saved with root canal treatment.

Similarly, a tooth that has been chipped or fractured for any reason may or may not exhibit the typical signs and symptoms seen in teeth needing root canal treatment. A simple look at estimating the amount of tooth structure remaining will help the dentist determine what the line of treatment should be.

This is a situation where past clinical experience comes in very handy.

Conclusion

Not having access to an X-ray is a big handicap for dentists. The ubiquity of dental x-ray machines and the ease provide by digital sensors have made taking tooth x-rays easier than ever before. Taking this tool away from the dentist can make life difficult for the dentist but not impossible.

The basic tools at the disposal of the dentist like a dental history, clinical evaluation, and clinical judgment from experience are enough to help diagnoses root canal treatment without the use of an x-ray.   

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