Materials for dental crowns in implants and methods for securing dentures?
Hello, doctor.
Due to a missing lateral incisor, I underwent dental implant surgery in April of this year (using Swedish Astra and bone graft material), which cost NT$100,000.
I just had the crown installed last week, but after the installation, the doctor informed me that "gingival recession may occur after the implant, and there may be a black margin appearing at the top of the prosthesis, which can be replaced within a year." Additionally, the installed tooth is noticeably whiter than the others, creating a color discrepancy.
The doctor advised me to observe it for a few days, and if I still find the color unacceptable, I can have it redone.
Upon researching at home, I learned that the black margin is due to the use of "metal-ceramic crowns," but during the initial consultation for the implant, the doctor only mentioned the implant, bone graft, and porcelain crown.
My oversight was not understanding that there are different types of porcelain crowns, specifically full porcelain and porcelain-fused-to-metal, and I assumed that spending NT$100,000 would typically mean a full porcelain crown.
I would like to ask the following questions, hoping someone can help me with the answers.
Thank you 🙏
Q1: Can I request the doctor to redo the crown with a full porcelain crown? Additionally, the implant prosthesis is fixed using a cement-retained method, and during the last installation, I noticed some residual adhesive on the tooth.
Although the amount of adhesive has decreased over the days, can I ask the doctor to switch to a screw-retained prosthesis?
Q2: I have inquired with other friends who have dental implants, and they have an implant warranty card.
However, I have not heard the doctor mention anything about this.
Is it standard practice for dental implants to come with an implant warranty card?
ppp, 20~29 year old female. Ask Date: 2023/08/01
Dr. Lin Jiayong reply Dentistry
Hello:
Q1: There should be a possibility to switch to all-ceramic, but the dentist initially choosing metal-ceramic likely has their reasons.
It is advisable to discuss this clearly with them.
The chance of converting from a cemented to a screw-retained restoration is very low, as it may require replacing the entire implant as well.
Q2: You can ask the dentist for the warranty card; there is no reason for them not to provide it.
It might simply be because the treatment is not yet fully completed, so just ask the dentist directly.
Reply Date: 2023/08/01
More Info
When considering dental implants, particularly regarding crown materials and fixation methods, it's essential to understand the implications of your choices and the potential outcomes. Based on your questions, let's delve into the details.
Q1: Can I request the dentist to redo the crown with a full porcelain crown?
Yes, you can certainly discuss your concerns with your dentist regarding the crown material. If you feel that the metal-ceramic crown is not aesthetically pleasing due to the visible black margin, you have the right to request a full porcelain crown. Full porcelain crowns are known for their superior aesthetic qualities, as they mimic the translucency and color of natural teeth more closely than metal-ceramic crowns. However, it is important to understand that full porcelain crowns may not be as strong as metal-ceramic crowns, especially in areas subjected to significant chewing forces. Therefore, your dentist will consider the location of the implant and your bite force when recommending the best material.
Q2: Can I request a screw-retained crown instead of a cement-retained crown?
Yes, you can ask your dentist about switching from a cement-retained crown to a screw-retained crown. Screw-retained crowns are often preferred because they can be easier to remove for adjustments or repairs, and they typically do not have the risk of cement residue, which can lead to complications such as peri-implantitis if not cleaned properly. However, the decision to switch should be based on the specific clinical situation, including the implant's position and the available space. Your dentist will evaluate these factors to determine the best approach for your case.
Additional Considerations
1. Gum Recession and Aesthetic Concerns: It's common for patients to experience some gum recession around dental implants, which can expose the margin of the crown. This is particularly noticeable with metal-ceramic crowns. If you are concerned about the aesthetic outcome, communicate this with your dentist. They may suggest additional treatments to enhance the appearance of the gum line or recommend a different crown material that better suits your aesthetic goals.
2. Implant Warranty: Regarding the implant warranty card, it is standard practice for many dental implant manufacturers to provide a warranty for their products. This warranty typically covers the implant itself but may not extend to the crowns or other components. If your dentist did not mention a warranty, it is worth asking about it. A warranty can provide peace of mind and assurance regarding the longevity and durability of your implant.
3. Material Choices: Understanding the differences between full porcelain and metal-ceramic crowns is crucial. Full porcelain crowns are often more aesthetically pleasing but may not be as durable in high-stress areas. Metal-ceramic crowns, while strong, can sometimes lead to aesthetic concerns due to the metal showing through the porcelain. Discuss these options with your dentist to find a balance between aesthetics and functionality that works for you.
4. Follow-Up Care: After receiving your crown, it’s important to maintain regular dental check-ups. This allows your dentist to monitor the health of your gums and the integrity of the implant. If you notice any changes, such as discomfort or visible changes in the crown, report these to your dentist promptly.
In conclusion, open communication with your dentist is key to achieving the best possible outcome for your dental implant and crown. Discuss your concerns about aesthetics, fixation methods, and warranty options to ensure that you are fully informed and comfortable with your treatment plan.
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