Yale-trained, board-certified periodontist Dr. Chanook David Ahn provides precision crown lengthening surgery at The Loft Dental Studio in Costa Mesa, a quick 12-minute drive from Irvine via I-405 S. Functional restorations and cosmetic gummy smile correction with expert bone recontouring.
Crown lengthening is a surgical procedure performed by a periodontist to expose more of a tooth's natural structure by removing gum tissue and reshaping the bone that surrounds it. Irvine residents who have been told they need a crown but lack sufficient tooth above the gum line, or who feel self-conscious about a gummy smile, are candidates for this procedure. Dr. Chanook David Ahn at The Loft Dental Studio in Costa Mesa performs crown lengthening with the precision of a board-certified periodontist whose surgical techniques were refined during his residency at Yale.
The surgery addresses two distinct clinical needs. In functional cases, a tooth has fractured, decayed, or eroded to a point where the remaining structure sits at or below the gum margin. Your Irvine general dentist cannot attach a crown to what is essentially hidden beneath tissue and bone. Crown lengthening lowers the bone and tissue around that tooth to reveal a sufficient band of healthy enamel or dentin for the crown to grip. In cosmetic cases, the teeth themselves are a normal size but are concealed by an excess of gum tissue, creating the appearance of small, stubby teeth or an overly prominent gum display when smiling. Dr. Ahn sculpts the tissue and bone to reveal the full natural crown of each tooth, producing a balanced and proportionate smile.
The reason both bone and soft tissue must be addressed in crown lengthening goes back to a fundamental principle in periodontics: the biologic width. This is the consistent 2 to 3 millimeter zone of soft tissue attachment the body maintains between the bone crest and the gum edge. If only gum tissue is trimmed without adjusting the bone, the tissue regenerates to reestablish that attachment distance, and the result is lost. By recontouring the bone first, Dr. Ahn sets the biological foundation for a gum margin that stays where it is placed permanently.
Irvine is home to outstanding general dentists, many of whom refer their periodontal surgical cases to Dr. Ahn because of his advanced training and track record. Several factors drive this referral pattern and lead Irvine patients to make the short trip to Costa Mesa.
Dr. Ahn completed his specialty training at Yale School of Medicine, where the periodontal residency program emphasizes evidence-based surgical technique, bone biology, and tissue healing science. This training included thousands of hours of supervised surgery in flap management, osseous recontouring, guided bone regeneration, and implant placement. The depth of this surgical education translates directly into more predictable crown lengthening outcomes, particularly in complex cases involving multiple teeth or thin tissue biotypes that require delicate handling.
After completing residency, Dr. Ahn earned diplomate status from the American Board of Periodontology by passing comprehensive written and oral examinations. Board certification is voluntary and represents the highest credential in the specialty. It requires the periodontist to present and defend treated cases before a panel of examiners, demonstrating not just technical skill but sound clinical judgment and long-term treatment planning ability. For Irvine patients seeking crown lengthening, this credential provides assurance that the surgeon has been independently validated at the highest professional level.
Dr. Ahn uses microsurgical instruments and magnification for precise tissue handling that minimizes trauma and promotes rapid healing. Every crown lengthening procedure includes PRF (Platelet-Rich Fibrin) therapy, in which concentrated growth factors from the patient's own blood are placed at the surgical site. PRF accelerates soft tissue repair, reduces swelling, and improves post-operative comfort. This combination of microsurgical technique and biological enhancement is a hallmark of Dr. Ahn's practice that Irvine patients consistently note in their reviews.
Coordination with Your Irvine Dentist: Dr. Ahn works directly with your general dentist or prosthodontist in Irvine to plan the crown lengthening around your restorative needs. Before surgery, he reviews the restoration plan to ensure the right amount of tooth will be exposed. After surgery, he sends a detailed report with measurements, healing status, and the recommended timing for final crown placement. This collaborative approach ensures a seamless result from surgery through restoration.
When a tooth breaks at the gum line or decay undermines structure below the tissue margin, your Irvine dentist faces a dilemma: the tooth needs a crown, but there is not enough tooth showing above the gum to support one. Extracting the tooth and replacing it with an implant is one option, but if the root is healthy and the surrounding bone is intact, crown lengthening offers a way to preserve the natural tooth.
During functional crown lengthening, Dr. Ahn exposes the necessary amount of sound tooth structure by carefully lowering the bone and tissue around the affected tooth. The goal is to create at least 4 millimeters of exposed tooth above the new bone crest, providing 2 millimeters of structure for the crown to grip (called the ferrule effect) and approximately 2 to 3 millimeters for the biologic width to reestablish. Once healing is complete, your Irvine dentist can prepare and seat a crown that has proper margins, a secure seal, and long-term retention.
A gummy smile affects how you feel about your appearance and can make people self-conscious during conversations, photographs, and social interactions. Many Irvine patients who seek cosmetic improvement are surprised to learn that their teeth are not actually short; they are simply covered by excess gum tissue that never receded to its adult position during development, a condition periodontists call altered passive eruption.
Cosmetic crown lengthening corrects this by removing the excess tissue and recontouring the bone beneath it to expose the full anatomical crown of each tooth. Dr. Ahn typically treats the six to ten teeth visible when smiling, carefully designing the new gum architecture so the central incisors and canines are slightly longer than the lateral incisors and the gum margins follow a smooth, symmetric curve. The result is a smile with natural proportions that looks balanced rather than surgically altered.
Because cosmetic crown lengthening involves bone recontouring, the results are permanent. The tissue cannot regrow past the new bone level, which means the improved gum line and tooth proportions last for the life of the teeth. Patients who have previously tried laser gum contouring and experienced tissue regrowth find that true crown lengthening with bone reshaping provides the stable outcome they were seeking.
Cosmetic crown lengthening is not just about removing tissue. It is about understanding the proportions that make a smile look natural. The width-to-length ratio of the front teeth should be approximately 75 to 80 percent. The gum margin on the central incisors and canines should be slightly higher than on the lateral incisors, creating gentle scalloping. I plan every cosmetic case with these proportions in mind, and I often collaborate with Dr. Yuliya Filipenka, our orthodontist-trained cosmetic dentist, when patients want to combine gum reshaping with veneers or bonding for a comprehensive smile transformation.
Knowing what to expect during each stage of crown lengthening helps Irvine patients prepare for a smooth experience from consultation through recovery.
Dr. Ahn begins with a thorough clinical examination that includes probing measurements, digital X-rays, and, when indicated, a CBCT 3D scan to visualize the bone architecture in detail. For functional cases, he reviews the restoration plan from your Irvine dentist. For cosmetic cases, he evaluates tooth dimensions, gum symmetry, lip line height, and smile dynamics. This information is used to design a surgical plan that specifies exactly how much bone and tissue will be repositioned at each tooth.
The procedure is performed under local anesthesia. IV sedation, oral sedation, or nitrous oxide are available for patients who want deeper relaxation. Dr. Ahn makes incisions in the gum tissue and elevates a flap to expose the bone. Using microsurgical instruments, he recontours the bone to the level specified in the treatment plan, maintaining proper biologic width dimensions throughout. The gum tissue is then repositioned at its new margin and sutured into place. PRF membranes are placed to promote healing. The procedure typically takes 60 to 90 minutes depending on the number of teeth.
Patients receive detailed written and verbal post-operative instructions before leaving the office. Pain management involves a combination of ibuprofen and, if needed, a short course of prescription medication. A chlorhexidine rinse is prescribed to keep the surgical area clean while brushing is restricted for the first week. Most Irvine patients drive themselves home after the procedure when local anesthesia alone is used; those who choose sedation need a driver.
Irvine patients reach The Loft Dental Studio in just 12 minutes via I-405 S. Dr. Ahn provides expert evaluation and personalized treatment planning for functional and cosmetic crown lengthening.
Call (714) 549-7030Recovery from crown lengthening is straightforward, and most Irvine patients return to their normal routine quickly. Here is the typical healing timeline.
Crown lengthening costs depend on the type of procedure and the number of teeth treated. The Loft Dental Studio provides detailed cost estimates after the consultation so Irvine patients know exactly what to expect.
Functional crown lengthening is frequently covered in part by PPO dental insurance because it is a medically necessary procedure that makes tooth restoration possible. Coverage typically ranges from 50 to 80 percent of the allowed amount. Cosmetic crown lengthening is generally classified as elective and is not covered. We accept most major PPO dental plans including Delta Dental, Cigna, MetLife, Guardian, Aetna, United Healthcare, and Blue Cross Blue Shield. CareCredit financing with interest-free payment options is available, and we accept FSA and HSA funds. See our Insurance & Payment page for full details.
The Loft Dental Studio is located at 3151 Airway Ave, Suite F-103, Costa Mesa, CA 92626, in the South Coast Metro area. The drive from Irvine takes approximately 12 minutes and is straightforward.
The office has ample free parking directly outside the building. The facility is ground-level with no stairs or elevators required. Hours are Monday through Friday 9:30 AM to 6:00 PM and Saturday 9:00 AM to 4:00 PM.
The Loft Dental Studio in Costa Mesa is approximately 12 minutes from central Irvine. The most direct route is I-405 S to the Fairview Road exit, then a short drive to 3151 Airway Ave, Suite F-103. The office sits in the South Coast Metro area near the junction of the 405, 55, and 73 freeways. There is ample free parking directly outside the building. Patients coming from the Irvine Spectrum area or south Irvine neighborhoods near University of California Irvine will find the drive similarly quick via I-405 or Jamboree Road.
Irvine patients choose The Loft Dental Studio because Dr. Chanook David Ahn is a Yale-trained, board-certified periodontist with over 5,000 implants placed and extensive experience in both functional and cosmetic crown lengthening. Board certification from the American Board of Periodontology is a credential held by a minority of practicing periodontists and demonstrates surgical mastery validated through rigorous examinations. The 12-minute drive from Irvine gives patients access to this level of expertise. Many Irvine general dentists refer their crown lengthening cases directly to Dr. Ahn because of his consistent outcomes and reliable communication regarding treatment coordination.
The Loft Dental Studio offers multiple levels of sedation to ensure patient comfort during crown lengthening. Local anesthesia is standard and provides complete numbness of the treatment area. For patients who experience dental anxiety or prefer deeper relaxation, IV sedation is available, which places the patient in a twilight state with little to no memory of the procedure. Oral sedation provides moderate relaxation through a prescription taken before the appointment. Nitrous oxide (laughing gas) is also available for mild anxiety relief and wears off quickly after the procedure. Dr. Ahn and his team discuss sedation preferences during the consultation so patients can choose the level of comfort that suits them.
Crown lengthening typically involves 3 to 4 visits to The Loft Dental Studio. The first visit is the consultation, during which Dr. Ahn examines the teeth, reviews imaging, and develops the treatment plan in coordination with your general dentist. The second visit is the surgical appointment, which usually lasts 60 to 90 minutes depending on the number of teeth involved. The third visit is the suture removal appointment at 7 to 10 days after surgery. A fourth follow-up visit may be scheduled at 4 to 6 weeks to confirm healing is on track before your dentist proceeds with the final restoration. For Irvine patients, the 12-minute drive makes these visits easy to fit into a work schedule.
Yes. The Loft Dental Studio at 3151 Airway Ave, Suite F-103 in Costa Mesa has ample free parking directly in front of and around the building. The parking lot is well-lit and easily accessible. Patients who drive from Irvine via I-405 S will exit at Fairview Road and arrive at the office within a few minutes. The building is a single-story professional complex with ground-level access, so there is no need to navigate parking garages or elevators.
Absolutely. Many general dentists and prosthodontists throughout Irvine routinely refer patients to Dr. Ahn for crown lengthening and other periodontal procedures. Your dentist can send a referral with the relevant X-rays and treatment notes, and Dr. Ahn's office will contact you to schedule the consultation. After the procedure, Dr. Ahn sends a detailed surgical report back to your dentist that includes the amount of tooth structure exposed, healing progress, and the recommended timeline for placing the final restoration. This two-way communication ensures your crown or bridge fits precisely over the surgically prepared tooth. Patients may also self-refer by calling (714) 549-7030 directly.