When dental implants were introduced to consumers in the late 1960’s, they offered new hope to patients who thought they’d never have the look and feel of ‘real’ teeth again. Since then, dental implants have steadily increased in popularity, earning a reputation as the luxury alternative to dentures. Today, though still expensive (the average cost of a full set is around $35k, though some sets have cost nearly triple that), dental implants are now becoming more mainstream. But like any medical procedure, they are not without risks. We spoke to Dr. Michelle Simpson of Wilmington, NC about what happens when dental implants don’t implant.
To most people who get dental implants, they are well worth the time, pain, and expense incurred to have them installed. But many patients do not realize that implants carry with them a risk of failure – and when they fail, it can cause irreparable damage to your gums and jaw bone. That’s why it’s important to know the risks associated with dental implants.
"Dental implants are titanium screws that are implanted into the jaw bone. Once the screws have successfully adhered to the bone (a process called osseointegration) and the bone and gum have healed, an abutment is placed on the titanium post. From there, artificial teeth are created and attached to the abutment," says Dr. Simpson. The implant process is done in stages, which are completed over several months. This allows for healing between each stage. But according to Dr. Simpson, "Sometimes, even despite the allotted healing time the implant doesn’t properly bond to the bone."
While there are many factors which may cause the osseointegration process to fail, new research is shedding some light on a surprising reason. A recent study by McGill University in Montreal found that certain medications may be to blame for some osseointegration failure. In the study of 728 patients, those who took antacids during the osseointegration process had more than double the risk of implant failure (6.8%) than those who did not take them (3.2%). On the other hand, patients who took beta blockers (a medication is taken to reduce blood pressure that works by blocking the hormone epinephrine) were found to have the lowest risk of implant failure – just .6%, whereas those who did not take beta blockers had a 4.1% chance of implant failure. It is believed that because antacids decrease calcium absorption (and have been found to increase the risk of bone fractures), they make it harder for dental implants to osseointegrate to the jaw successfully. Conversely, according to Dr. Simpson, "Beta blockers have been shown to increase bone formation in other studies- so their use in dental implant patients actually increased the body’s ability to accommodate the implant."
What this means for future implant patients is still unknown, there is a good chance that beta blockers may play a role in the healing process. In the meantime, Dr. Simpson says the research can help dentists provide more information to their patients about what to avoid during the implant process. "Now we know to tell patients to limit their use of antacids. Whether that means they need to cut back on certain foods or find a different medication that doesn’t affect the bone metabolism, it will empower them to have the best odds at a successful implantation."