A temporary crown is a protective cap placed over a prepared tooth while a custom-made permanent crown is fabricated. This provisional restoration, typically made from acrylic resin, shields the underlying tooth structure, which is often sensitive and susceptible to decay. Temporary crowns are secured with a specialized cement that is intentionally less adhesive than permanent cement, allowing for easy removal. Diligent hygiene is necessary to prevent gum irritation, infection, and bacteria accumulation beneath the crown’s margin. Proper care ensures the tooth remains healthy and correctly positioned so the permanent crown will fit precisely when cemented.
Specific Brushing Technique
Cleaning a temporary crown requires a significant shift in brushing pressure and motion compared to cleaning natural teeth. Only a soft-bristled toothbrush should be used, as the acrylic material and temporary cement are vulnerable to excessive force. Aggressive scrubbing or using a hard-bristled brush can scratch the crown or create leverage against the cement seal.
The physical movement should be gentle and deliberate, employing a small, circular motion on the chewing surface and a vertical, sweep-away motion on the sides. When brushing the gumline, direct the bristles away from the gums and the crown’s margin. This technique cleans the area without pushing the crown upward or outward, which could break the temporary bond.
Avoid vigorous horizontal scrubbing, especially directly at the crown’s edge, as this motion is most likely to loosen the temporary cement. Since the cement is not designed for high tensile or shear forces, excessive pressure can physically push the crown off the tooth. A light touch is necessary to maintain the integrity of the provisional restoration.
Safe Interdental Cleaning Practices
Cleaning between the temporary crown and adjacent teeth requires caution to prevent dislodgement. Traditional flossing, which involves snapping the floss up or down to remove it, creates a lifting force that can easily pull the temporary crown off the tooth preparation. The temporary cement is not strong enough to withstand this upward tugging action.
Use a “pull-through” technique with dental floss or a floss threader. After gently inserting the floss through the contact point, slide it out through the side (toward the cheek or the tongue) rather than pulling it back out through the top. This ensures no upward force is applied against the crown’s margin.
A water flosser or an interdental brush is a safer, more effective option for cleaning the interproximal space. These tools remove plaque and food debris without the leverage associated with traditional flossing, maintaining gum health while protecting the provisional restoration.
General Care and Precautions
Beyond precise oral hygiene, several habits must be modified to keep the temporary crown securely in place. Avoid chewing on the side of the mouth where the temporary crown is located to minimize direct force. This prevents the crown from fracturing or the temporary cement from failing under heavy load.
A temporary crown is not built to withstand the same biting forces as a permanent crown, so certain foods must be avoided. Sticky items (caramel, taffy, chewing gum) can pull the crown off due to their adhesive nature. Hard and crunchy foods (nuts, hard candies, ice) can easily crack or chip the acrylic material. Also avoid tearing or biting into tough foods, like steak or hard breads.
Be mindful of extreme temperatures, as the prepared tooth underneath may be sensitive to hot or cold liquids. Maintaining the scheduled appointment for the permanent crown is necessary to complete the restoration process.