A temporary crown serves as a protective placeholder placed over a tooth prepared for a permanent restoration. Its primary function is to safeguard the underlying, sensitive tooth structure and prevent adjacent teeth from shifting while the final crown is fabricated in a lab. This interim cap allows a patient to maintain normal function, such as chewing and speaking, and preserves the tooth’s appearance during the waiting period, which typically lasts a few weeks. The feeling that a temporary crown is “weird” or unusual is a common and normal part of the restorative process. This difference in sensation is expected because the temporary device is not engineered for the same durability or precision as the permanent crown.
Understanding the Specific Sensations
Patients frequently report a distinct sense of bulkiness or clumsiness with their temporary crown, feeling noticeably larger or thicker than the natural tooth it replaces. This is often accompanied by the perception of rough or sharp edges where the material meets the gumline or adjacent teeth. Because the temporary crown is not an exact replica of the final restoration, it may feel slightly “off” when the patient bites down. This minor discrepancy in the bite alignment is a common initial sensation that can sometimes be quickly addressed by the dental office.
Temperature sensitivity is common, where the tooth becomes more reactive to hot or cold stimuli like drinks and food. The underlying tooth structure is significantly more vulnerable after preparation, and the temporary material does not provide the complete insulation of a permanent crown. Furthermore, the gum tissue surrounding the crown may feel irritated or slightly swollen for a few days following the placement procedure.
Structural Reasons for the Difference
The sensations of roughness and bulkiness stem directly from the materials used for temporary crowns, which are typically acrylic, composite resin, or plastic. These materials are less dense and more porous than the porcelain, ceramic, or metal alloys used for permanent crowns, resulting in a less smooth finish. The fabrication process for temporaries is quicker and less precise than the custom-milling of a final crown, meaning they are not perfectly contoured to the mouth. This difference in fit can result in slight overhangs or margins that feel rough to the tongue and may irritate the surrounding gum tissue.
The heightened temperature sensitivity occurs because the tooth has been reduced to accommodate the crown, exposing the underlying dentin. Dentin contains microscopic tubules that lead directly to the tooth’s pulp and nerve, making the tooth vulnerable to thermal changes. The temporary crown and its cement do not offer the same hermetic seal as a final restoration, leaving the nerve more susceptible to irritation. Additionally, the cement used to hold the temporary crown in place is intentionally designed to be weaker and easier to remove. This weaker adhesive allows for simple removal at the next appointment, but it also contributes to the temporary crown feeling less secure than the final product.
Managing the Adjustment Period
Most patients find that the initial sensations subside significantly within a few days to a week. During this adjustment period, it is important to exercise caution with oral hygiene and dietary choices to protect the restoration. When flossing near the temporary crown, gently slide the floss out from the side rather than pulling it upwards, which can dislodge the cap. Patients should avoid hard, sticky, or chewy foods, such as caramel, nuts, and chewing gum, as these can easily loosen the temporary crown or cause it to fracture.
While some minor sensitivity is normal, there are specific signs that indicate a need to contact the dental office immediately for an evaluation. Addressing these issues quickly ensures the prepared tooth remains protected and that the permanent crown will fit correctly when it arrives.
When to Contact Your Dentist
- The crown falls off completely.
- You experience severe, sharp, or persistent pain that does not resolve with over-the-counter medication.
- There is a significant and prolonged shift in your bite.
- You have the sensation that the crown is too high.