Board-certified periodontist Dr. Chanook David Ahn takes a save-first approach to failing dental implants. Advanced diagnostics, laser decontamination, and bone regeneration to rescue implants before recommending removal. Serving Costa Mesa, Irvine, Newport Beach, Santa Ana, and Tustin.
Peri-implantitis is a destructive inflammatory condition that affects the tissues surrounding a dental implant, characterized by progressive loss of the supporting bone. Unlike a natural tooth, which is connected to bone through a periodontal ligament with blood vessels and nerve fibers, a dental implant is fused directly to bone through osseointegration. When bacteria colonize the implant surface below the gumline and trigger an immune response, the resulting inflammation destroys the bone that holds the implant in place. Without treatment, peri-implantitis leads to implant loosening and eventual failure.
It is important to distinguish peri-implantitis from peri-implant mucositis, which is the earlier and reversible stage of peri-implant disease. Peri-implant mucositis involves inflammation of the soft tissue (gums) around the implant without any bone loss. At this stage, the condition is comparable to gingivitis around a natural tooth: the gums are red, swollen, and may bleed when probed, but the underlying bone remains intact. Peri-implant mucositis can be reversed with professional cleaning and improved oral hygiene. However, if left untreated, peri-implant mucositis frequently progresses to peri-implantitis, at which point bone destruction begins and the condition becomes far more difficult to manage.
The transition from mucositis to peri-implantitis is not always obvious to patients because it occurs beneath the gumline. A patient may notice occasional bleeding when brushing around an implant but dismiss it as minor. Meanwhile, bone is being lost at the microscopic level. By the time symptoms become noticeable, such as increased probing depths, visible recession, or implant mobility, significant bone destruction may have already occurred. This is why regular monitoring by a periodontist is essential for every patient with dental implants.
Research published in the Journal of Dental Research estimates that peri-implantitis affects approximately 20 to 22 percent of all dental implants, making it one of the most common complications of implant therapy. The condition is particularly prevalent in patients with a history of periodontal disease, smokers, and individuals with poorly controlled diabetes. Early detection and treatment by a specialist like Dr. Ahn significantly improves the chances of saving the implant.
Recognizing the warning signs of peri-implantitis early is critical for successful treatment. If you experience any of the following symptoms around a dental implant, schedule an evaluation with Dr. Ahn promptly.
Peri-implantitis is a multifactorial disease, meaning it results from a combination of bacterial, host, and treatment-related factors. Understanding the causes helps patients and providers identify risk factors and take preventive measures. The most common contributing factors include the following.
Inadequate plaque control around dental implants is the primary modifiable risk factor for peri-implantitis. Bacterial biofilm accumulates on implant surfaces just as it does on natural teeth, and without effective daily removal through brushing, flossing, and interdental cleaning, the biofilm matures into a pathogenic community that triggers inflammatory bone destruction. Patients who struggle with oral hygiene around their implants require more frequent professional maintenance visits and may benefit from specialized cleaning tools.
Patients who lost their natural teeth due to periodontal disease are at significantly higher risk of developing peri-implantitis. The same host immune response and bacterial susceptibility that led to periodontitis around natural teeth can affect dental implants. Studies show that patients with a history of periodontitis are approximately two to three times more likely to develop peri-implantitis compared to patients who lost teeth for other reasons. This is why Dr. Ahn emphasizes the importance of treating and stabilizing periodontal disease before placing implants, and why regular maintenance visits are essential after implant placement.
Tobacco use impairs blood supply to the tissues surrounding implants, compromises the immune response to bacterial infection, and has been consistently associated with higher rates of peri-implantitis and implant failure. Smokers are approximately three to four times more likely to develop peri-implantitis compared to non-smokers. Dr. Ahn discusses smoking cessation with all patients considering implant therapy and those presenting with peri-implant disease.
Poorly controlled diabetes mellitus impairs wound healing and immune function, increasing susceptibility to peri-implant infections. Patients with well-controlled diabetes can have successful implant outcomes, but they require careful monitoring and diligent maintenance. Other systemic conditions that affect immune function, including autoimmune disorders and immunosuppressive medications, may also increase peri-implantitis risk.
Cement-retained implant crowns are a common restorative option, but excess cement that remains below the gumline after crown placement can act as a chronic irritant and harbor bacteria. Research has shown that residual cement is a significant contributing factor to peri-implantitis, with some studies finding cement remnants in up to 80 percent of peri-implantitis cases involving cement-retained restorations. Removing residual cement and converting to a screw-retained restoration when possible can resolve or improve the condition.
Implants placed in suboptimal positions, whether too deep, too shallow, too close to adjacent teeth, or at an improper angle, can create conditions that predispose to peri-implantitis. Poor positioning may result in inadequate bone or soft tissue coverage, difficulty with oral hygiene access, excessive loading forces, and unfavorable crown-to-implant ratios. This is why precise surgical planning with CBCT imaging is critical during the implant placement phase.
Keratinized tissue is the thick, firm, attached gum tissue that provides a seal around the implant and protects the underlying bone. When an implant lacks adequate keratinized tissue, the surrounding mobile mucosa allows bacteria easier access to the implant-bone interface. A growing body of evidence supports the importance of at least 2 millimeters of keratinized tissue around implants for long-term health. When keratinized tissue is deficient, a soft tissue graft can be performed to create a more favorable tissue environment.
Accurate diagnosis is the foundation of effective peri-implantitis treatment. Dr. Ahn uses a systematic diagnostic protocol that combines clinical examination with advanced imaging to determine the extent of disease, identify contributing factors, and develop an individualized treatment plan.
The clinical examination begins with a thorough assessment of the soft tissue around the implant, evaluating color, texture, swelling, and the presence of bleeding or suppuration. Dr. Ahn performs careful probing around the implant using a calibrated periodontal probe with light force to measure pocket depths at multiple points. Probing depths greater than 5 millimeters, bleeding on probing, and suppuration are key diagnostic indicators. The probing measurements are compared to baseline records taken when the implant was first restored to identify changes over time.
While traditional two-dimensional periapical radiographs can detect bone loss on the mesial (front) and distal (back) surfaces of an implant, they cannot reveal bone loss on the buccal (cheek-side) or lingual (tongue-side) surfaces. CBCT 3D imaging provides a complete three-dimensional view of the bone around the implant, revealing the exact pattern and extent of bone loss on all surfaces. This information is critical for treatment planning because the bone loss pattern determines whether regenerative treatment is feasible. Crater-shaped defects (bone loss around part of the implant with intact bone walls remaining) are more amenable to bone regeneration than horizontal bone loss where the supporting walls are absent.
Dr. Ahn evaluates implant stability through clinical testing. A stable implant that does not exhibit any mobility still has osseointegrated contact with the surrounding bone and is a candidate for salvage treatment. An implant that shows any perceptible mobility has lost its osseointegration and cannot be re-integrated with bone. Mobile implants must be removed. Fortunately, most cases of peri-implantitis that are detected through regular monitoring present while the implant still retains stability, which is why early detection is so important.
Beyond assessing the disease itself, Dr. Ahn evaluates factors that may have caused or contributed to the condition. This includes examining the implant restoration for residual cement, assessing implant positioning, evaluating the adequacy of keratinized tissue, reviewing the patient's oral hygiene technique, and identifying systemic risk factors such as diabetes or smoking. Addressing these contributing factors is essential for successful treatment and prevention of recurrence.
Dr. Ahn's approach differs from most providers — he evaluates whether the implant can be saved through decontamination and bone regeneration before recommending removal and replacement. Many providers default to removing a failing implant and starting over, but Dr. Ahn recognizes that when caught early enough and treated with the right protocol, many implants with peri-implantitis can be successfully rescued. Saving the existing implant avoids the cost, healing time, and surgical complexity of removal, bone grafting, and replacement implant placement.
Dr. Ahn's save-first philosophy is grounded in his extensive experience with both implant placement and implant rescue. Having placed over 5,000 dental implants during his career, he understands implant biology from the placement side and from the disease management side. This dual perspective allows him to make informed judgments about which implants have a favorable prognosis with treatment and which implants have progressed beyond the point where salvage is predictable.
The treatment approach is determined by the severity of the condition, the pattern of bone loss, and the individual patient's risk factors. Dr. Ahn categorizes each case and selects from a range of non-surgical, surgical, and laser-based treatment options to give every salvageable implant the best possible chance of long-term survival.
Non-surgical treatment is the first line of therapy for peri-implantitis and is appropriate for early to moderate cases where bone loss is limited and the implant remains stable. The goal of non-surgical treatment is to reduce the bacterial load around the implant, resolve inflammation, and create conditions that allow the tissue to heal and reattach to the implant surface.
The implant surface below the gumline is carefully cleaned using instruments specifically designed for use on implant surfaces. Unlike natural teeth, dental implants have a titanium surface that can be scratched or damaged by traditional metal scalers and curettes. Dr. Ahn uses titanium curettes, carbon fiber instruments, and ultrasonic scalers with specialized tips that effectively remove bacterial deposits without damaging the implant surface. Preserving the integrity of the implant surface is important because roughened or scratched surfaces harbor more bacteria and are more difficult to decontaminate.
Mechanical debridement alone may not eliminate bacteria that have colonized the microstructure of the implant surface. Antimicrobial agents are used as an adjunct to mechanical cleaning to reduce the bacterial load further. Options include locally delivered antimicrobials placed directly into the peri-implant pocket, antiseptic irrigation with chlorhexidine, and in some cases systemic antibiotics targeted at the specific bacteria identified through microbial testing. Dr. Ahn selects the antimicrobial protocol based on the severity of infection and the patient's medical history.
Dental lasers provide a highly effective method of decontaminating implant surfaces that complements mechanical debridement. Laser energy can reach areas of the implant surface that are inaccessible to hand instruments and ultrasonic scalers, killing bacteria within the biofilm and on the textured implant surface. Laser treatment also stimulates a healing response in the surrounding tissues. Dr. Ahn uses laser therapy as part of a comprehensive decontamination protocol to maximize bacterial elimination while minimizing trauma to the surrounding soft tissue.
Non-surgical therapy can be effective for early-stage peri-implantitis with limited bone loss (typically less than 25 percent of the implant length), minimal pocketing (5 to 6 millimeters), and a patient who is willing to commit to improved oral hygiene and regular maintenance visits. However, non-surgical treatment has limitations when bone loss is more advanced or when the bone defect morphology prevents thorough debridement without surgical access. Dr. Ahn reassesses the response to non-surgical therapy after 6 to 8 weeks and recommends surgical intervention if adequate healing has not been achieved.
When non-surgical treatment is insufficient to resolve peri-implantitis, surgical intervention provides direct access to the implant surface and the surrounding bone defect. Surgical treatment allows thorough decontamination of the exposed implant surface under direct visualization and, when the bone defect morphology is favorable, regeneration of lost bone around the implant through guided bone regeneration.
The surgical procedure begins with reflection of a mucoperiosteal flap to expose the implant surface and the surrounding bone defect. This direct access allows Dr. Ahn to visualize the full extent of bone loss, remove all granulation tissue (infected inflammatory tissue) from the defect, and thoroughly debride the exposed implant surface. Direct visualization is critical because the textured surface of most dental implants (designed to promote osseointegration during initial placement) also provides an ideal environment for bacterial colonization. Cleaning every thread and surface irregularity is essential for successful decontamination.
Once the implant surface is exposed and accessible, Dr. Ahn employs a multi-step decontamination protocol. This typically includes mechanical cleaning with titanium brushes, chemical decontamination with agents such as citric acid or hydrogen peroxide, and laser irradiation of the implant surface. Air abrasion using glycine powder or erythritol powder can effectively remove biofilm from the textured implant surface without altering the surface topography. The goal is to render the implant surface free of bacteria and biofilm so that bone can re-establish contact with a clean surface during the healing phase.
When the bone defect around the implant has a favorable morphology, typically a crater-shaped (intrabony) defect with intact bony walls, Dr. Ahn performs guided bone regeneration to rebuild the lost bone. Bone graft material is placed into the defect around the decontaminated implant surface, and a resorbable or non-resorbable membrane is placed over the graft to protect it and prevent soft tissue from growing into the space before bone can form. PRF (Platelet-Rich Fibrin) is incorporated to enhance healing and graft integration. Over a period of several months, the bone graft is gradually replaced by the patient's own living bone, re-establishing support around the implant. Learn more about bone regeneration.
When the bone defect is not amenable to regeneration, such as when bone loss is horizontal rather than crater-shaped, a resective approach may be used. In resective surgery, the bone around the implant is recontoured to eliminate deep pockets and create a tissue architecture that the patient can maintain with oral hygiene. While resective surgery does not rebuild lost bone, it can arrest the disease process by eliminating the pocket environment where bacteria thrive. In some cases, the implant prosthesis may need to be modified to accommodate the new tissue contour.
The LAPIP (Laser-Assisted Peri-Implantitis Protocol) is a minimally invasive laser-based treatment specifically designed for peri-implantitis. LAPIP uses the PerioLase MVP-7 Nd:YAG laser, the same laser platform used in the LANAP protocol for treating periodontal disease around natural teeth. The LAPIP protocol adapts the principles of LANAP to the unique biology of dental implants, using specific laser wavelengths and energy settings to selectively remove diseased tissue, decontaminate the implant surface, and stimulate the body's natural bone regeneration processes.
During the LAPIP procedure, Dr. Ahn introduces a thin laser fiber into the peri-implant pocket. The Nd:YAG laser energy selectively targets pigmented bacteria and inflamed tissue while sparing healthy tissue and the implant surface. The laser effectively vaporizes the bacterial biofilm and infected granulation tissue lining the pocket. Following laser treatment, the implant surface is mechanically debrided using specialized instruments, and a second pass of laser energy is applied to form a stable fibrin clot at the base of the pocket. This fibrin clot serves as a biological seal that protects the site during healing and contains growth factors that promote tissue regeneration.
One of the primary advantages of LAPIP is that it does not require flap surgery. Because the laser fiber is introduced through the existing pocket, there are no incisions, no sutures, and minimal post-operative discomfort. Recovery is typically faster than with conventional surgical approaches, and patients can usually return to normal activities the next day. The LAPIP protocol is particularly beneficial for patients who are not candidates for conventional surgery due to medical conditions, those who prefer a less invasive approach, and cases where moderate bone loss is present in a pattern amenable to regeneration.
Dr. Ahn is trained and certified in both the LANAP and LAPIP protocols, giving patients access to the most advanced laser treatment options for both periodontal disease around natural teeth and peri-implant disease around dental implants. Learn more about LANAP laser gum treatment.
As a periodontist who has placed over 5,000 dental implants, I understand implant biology from every angle — from the surgical placement to the long-term maintenance to the management of complications. That perspective is invaluable when treating peri-implantitis because the decision of whether to save or remove an implant requires deep understanding of osseointegration, bone biology, and the realistic outcomes of both treatment paths. Many failing implants can be saved with the right treatment at the right time. The critical factor is early detection. When patients maintain regular maintenance visits and peri-implantitis is caught while bone loss is still limited and the implant remains stable, the success rate of salvage treatment is high. By the time an implant is mobile, the window for rescue has closed. I recommend that every implant patient establish a maintenance schedule with a periodontist and seek evaluation immediately if they notice bleeding, swelling, or any change around their implant.
If you have a dental implant that is showing signs of trouble — bleeding, swelling, bone loss, or looseness — early evaluation can make the difference between saving and losing the implant. Dr. Ahn provides thorough, CBCT-guided assessments with honest recommendations.
Call (714) 549-7030The cost of peri-implantitis treatment depends on the severity of the condition, the treatment approach required, and whether bone grafting is needed. At The Loft Dental Studio, Dr. Ahn provides a detailed cost estimate after your diagnostic evaluation so you understand the full scope of treatment and its cost before proceeding.
Many PPO dental insurance plans provide partial coverage for peri-implantitis treatment, particularly for the non-surgical components such as debridement and antimicrobial therapy. Surgical treatment including bone grafting may be covered under oral surgery or periodontal benefits depending on your specific plan. Coverage varies significantly between insurers and plan types.
PPO Plans We Accept: Delta Dental, Cigna, MetLife, Guardian, Aetna, United Healthcare, and Blue Cross Blue Shield.
We offer financing through CareCredit, which provides low-interest and interest-free payment plans for patients who prefer to manage costs over time. We also accept FSA (Flexible Spending Account) and HSA (Health Savings Account) funds, allowing you to pay for peri-implantitis treatment with pre-tax dollars. For more details, visit our Insurance & Payment page.
Yes, many failing dental implants can be saved when peri-implantitis is caught early enough and treated by a specialist. The key factors that determine whether an implant can be rescued include the amount of remaining bone support, whether the implant is still stable (osseointegrated), the pattern of bone loss, and the patient's overall health. Dr. Ahn evaluates each case with CBCT 3D imaging to assess the extent of bone loss and determine whether decontamination and bone regeneration can restore adequate support. When bone loss is limited to one or two walls of the implant and the implant remains stable, regenerative treatment has a high probability of success. However, if the implant is mobile or bone loss is circumferential and severe, removal and replacement may be the more predictable option.
Untreated peri-implantitis is a progressive condition that does not resolve on its own. The bacterial infection continues to destroy the bone surrounding the implant, and the rate of bone loss typically accelerates over time. As bone support diminishes, the implant becomes increasingly mobile and eventually fails completely, requiring removal. In advanced cases, the extensive bone loss caused by untreated peri-implantitis can compromise the ability to place a replacement implant without major bone grafting procedures. The infection can also spread to affect adjacent teeth and implants. Early intervention is critical because treatment outcomes are significantly better when bone loss is limited. Dr. Ahn recommends that any patient with a dental implant who notices bleeding, swelling, or discomfort around the implant seek evaluation promptly.
Peri-implantitis is more common than many patients and providers realize. Research published in the Journal of Dental Research estimates that peri-implantitis affects approximately 20 to 22 percent of dental implants and roughly 43 percent of implant sites show signs of peri-implant mucositis, the earlier and reversible stage of peri-implant disease. Risk factors that increase the likelihood of developing peri-implantitis include a history of periodontal disease, smoking, poorly controlled diabetes, inadequate oral hygiene, and the absence of keratinized (attached) tissue around the implant. Patients with a history of periodontitis are at particularly high risk and should be monitored closely after implant placement.
Many PPO dental insurance plans provide partial coverage for peri-implantitis treatment, particularly for the non-surgical components such as debridement and antimicrobial therapy. Surgical treatment including bone grafting may be covered under oral surgery or periodontal benefits depending on your specific plan. Coverage varies significantly between insurers and plan types. The Loft Dental Studio accepts most major PPO dental insurance plans including Delta Dental, Cigna, MetLife, Guardian, Aetna, United Healthcare, and Blue Cross Blue Shield. Our administrative team verifies your benefits before treatment begins so you have a clear understanding of your out-of-pocket costs. Financing through CareCredit and FSA/HSA accounts are also accepted.
Treatment duration depends on the severity of peri-implantitis and the approach used. Non-surgical treatment such as mechanical debridement and laser decontamination is typically completed in one to two appointments of 60 to 90 minutes each. Surgical treatment including open flap debridement with bone grafting takes approximately 90 minutes to two hours per surgical site. The LAPIP laser protocol is usually completed in one to two sessions. After active treatment, a healing period of three to six months is needed for bone regeneration before the site is re-evaluated. Most patients require ongoing maintenance visits every three to four months following treatment to monitor the implant and prevent recurrence. Dr. Ahn develops an individualized treatment timeline during the consultation after reviewing CBCT imaging and clinical findings.
Yes, peri-implantitis can recur after treatment, which is why ongoing maintenance is essential. Studies show that the recurrence rate is significantly lower in patients who adhere to a regular periodontal maintenance schedule, typically every three to four months. Risk factors for recurrence include smoking, poorly controlled diabetes, inadequate home care, and a history of periodontal disease. Dr. Ahn designs a customized maintenance protocol for each patient following peri-implantitis treatment. These visits include professional cleaning around the implant, probing depth measurements, radiographic monitoring, and reinforcement of home care techniques. Patients who commit to regular maintenance visits have the best long-term outcomes and the lowest risk of disease returning.