Strained Jaw After a Dental Filling: What's the Cause?


Anyone who has ever had a dental filling will know that the process is fairly comfortable for the patient. A dentist will typically numb your jaw before removing the decayed portion of a tooth and filling the cavity. Once this numbing agent wears off, you might experience some minor discomfort and temporary sensitivity, but this will quickly disappear. In the days and weeks after your filling was applied, it can be strange to begin to experience some discomfort. It might not even seem to be affecting the tooth that was recently restored, but your jaw certainly feels strange. Could there be a link between this curious sensation and your recent filling?

Dental Malocclusion

Jaw strain and a general feeling of dental discomfort can indicate dental malocclusion, which is a misalignment of your bite. When this develops shortly after having a cavity filled, your new dental restoration can be the culprit. How is this possible?

A Mispositioned Restoration

When a dentist places a filling, it's not quite as simple as filling in a hole. The material restores the tooth to its former structural integrity, however, the addition of this restoration can sometimes be mispositioned, which prevents your teeth from making proper contact with each other when your mouth is closed. This is malocclusion and can result in a strained feeling affecting your jaw. It won't be painful, but it can cause discomfort, and this is not a normal side effect of receiving a filling.

Consult Your Dentist

If your jaw should begin to feel uncomfortable after receiving a filling, you must consult your dentist. The positioning of the filling will be assessed. Malocclusion typically occurs when the filling is placed too high on the tooth. It's simple enough for the filling to be removed and replaced in a position that won't trigger malocclusion, provided the filling can still provide comprehensive coverage for the underlying cavity. 

Indirect Fillings

When the location of the cavity is problematic, it might be concluded that it's impossible to fill the cavity without malocclusion being an issue. Standard fillings are known as direct fillings, as they're applied directly to the cavity. You may require an indirect filling, in which a partial dental crown is manufactured and fitted over the entirety of the damaged portion of the tooth. This fills the cavity while also preventing malocclusion.

A small amount of discomfort and sensitivity are common after receiving a dental filling, but a strained jaw is not. Be sure to contact your dentist if your jaw should feel strained after a filling, as the filling may require attention.

About Me

Dental Procedures: A Guide

Hi! My name is Jenny. I live in Melbourne with my husband, two kids and a dog. Right now, I have taken a little time out to look after my newborn babies and to be a full-time homemaker. However, before I was a mom and a wife, I trained to be a dental nurse. Dentistry runs in the family. My dad was a dentist and so was my grandad. As a child, I remember playing with the models of teeth they had in the office. I really miss helping people to maintain their dental health, so I decided to start a blog. I hope you find it useful.

Latest Posts

10 February 2025
Toothache is a common yet often debilitating dental issue that can disrupt daily routines and impact overall well-being. Prompt and effective treatmen

26 June 2024
If you have been told by your dentist that you need a root canal treatment, you may be feeling anxious or unsure about what to expect. Root canals are

13 December 2023
Do you dream of a straighter, more confident smile but cringe at the thought of traditional metal braces? Fortunately, Invisalign offers a revolutiona

Tags