Core Build-up Endo
Core Build-up Endo is a specialized dental service provided by the board-certified specialists at Aloha Dental Specialty Center in Beaverton, OR. Restoring structural integrity after root canal treatment — the foundation your crown needs to last.
Post and Core Buildup: Rebuilding Your Tooth After Root Canal Treatment
A post and core buildup is a restorative procedure that rebuilds a tooth's internal structure after root canal treatment, providing the retention and foundation needed to support a permanent crown. When a tooth has lost significant coronal structure — from decay, fracture, or the access opening required for root canal treatment — there may not be enough remaining tooth to hold a crown on its own. In these cases, a post is cemented into one of the prepared root canals and a core of composite or amalgam is built up around it, recreating the tooth's core shape so a crown can be fabricated and cemented over it.
At Aloha Dental Specialty Center, Dr. Ostovar and Dr. Gvozden evaluate post and core needs as part of the endodontic treatment plan. The decision to place a post depends on how much tooth structure remains above the gum line — not on the root canal itself. A commonly misunderstood point: posts do not strengthen root-canal-treated teeth. Their sole function is to retain the core buildup in a tooth that lacks sufficient coronal structure. Placing a post when adequate tooth structure exists adds no benefit and actually weakens the root by removing dentin during post space preparation. We recommend posts only when they are structurally necessary.
Modern post systems have moved away from custom-cast metal posts toward prefabricated fiber posts bonded with resin cement. Fiber posts have a modulus of elasticity similar to dentin, meaning they flex with the tooth under biting forces rather than acting as a rigid wedge. This dramatically reduces the incidence of catastrophic vertical root fracture — the complication that most commonly led to extraction of post-restored teeth in the past. When a fiber post does fail, it typically debonds rather than fracturing the root, allowing the tooth to be re-restored rather than extracted. Dr. Ostovar prepares the post space carefully under magnification to preserve maximum root dentin thickness and bonds the fiber post with dual-cure resin cement for best retention.
Serving Beaverton, Aloha, Hillsboro & Washington County
Aloha Dental Specialty Center is located at 18455 SW Alexander St, Suite A, in Beaverton, Or 97003egon. We serve patients from across the Tualatin Valley and greater Portland metro, including Aloha, Hillsboro, Tigard, Lake Oswego, and Tualatin. Our Beaverton office is a 5-minute drive from Aloha, 10 minutes from Hillsboro, and 15 minutes from Tigard via SW 185th Avenue.
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Intel Campuses (Ronler Acres & Jones Farm)
10 to 15 minutes via NW 185th Ave. We accommodate the schedules of tech professionals who need efficient, high-quality specialty care.
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Nike World Headquarters
About 8 minutes via SW Baseline Rd. We frequently see patients from the Nike campus for surgical and implant procedures with sedation options.
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Streets of Tanasbourne & Orenco Station
Easily accessible via US-26 and NW 185th. Local general dentists in these communities regularly refer patients to us for specialty procedures.
Why Local Dentists Refer to Us
We work as a trusted partner to general dentists throughout the Tualatin Valley. When cases require CBCT-guided planning, IV sedation, bone grafting, or other advanced procedures, local providers refer to Dr. Ostovar for his fellowship-trained expertise and predictable results.
We handle the complex surgical phases and coordinate closely with your general dentist for smooth continuity of care from start to finish.
Understanding Your Investment
At Aloha Dental Specialty Center, we provide transparent pricing before any treatment begins. The cost of your procedure depends on clinical complexity, materials used, and sedation requirements. We walk you through every line item during your consultation so there are no surprises.
What Affects Cost:
- Clinical Complexity: Bone loss, sinus proximity, nerve involvement, or the need for grafting affects treatment planning and surgical time.
- Materials: We use research-backed implant systems, purified bone graft matrices, and high-strength ceramics from established manufacturers.
- Sedation: Options range from local anesthesia to IV sedation, each with different associated costs. We discuss the best option for your comfort and procedure.
Insurance & Financing
We accept most major dental insurance plans and file claims on your behalf. Our team verifies your benefits before treatment and submits pre-treatment estimates with clinical documentation to maximize coverage.
For out-of-pocket costs, we partner with CareCredit and Cherry for flexible payment plans. We also offer our ADSC Dental Savings Plan for patients without insurance.
Recovery & Healing Timeline
Understanding the healing process helps you plan ahead and follow post-operative instructions for the best possible outcome.
First 48 Hours
Mild swelling and tenderness are normal. Apply ice packs in 20-minute intervals and take prescribed or over-the-counter anti-inflammatory medication. Eat soft foods and avoid the surgical site when chewing.
Days 3 to 7
Swelling peaks around day three and then improves. The tissue begins closing over the surgical site. Continue with soft foods and use any prescribed antimicrobial rinse. Most patients return to normal activities during this phase.
Long-Term Healing
Surface tissue heals within two to three weeks. Bone integration and deep healing continue for three to six months. Avoid smoking, follow up as scheduled, and maintain good oral hygiene throughout recovery.
Questions during recovery? Call us at (503) 822-0096. We are available for post-operative concerns.
Post and Core Materials: Evidence-Based Selection
The transition from cast metal posts to prefabricated fiber posts represents one of the most significant evidence-based shifts in restorative dentistry. Cast metal posts have high rigidity (modulus of elasticity approximately 200 GPa for gold alloy) compared to dentin (approximately 18 GPa), creating stress concentration at the post-dentin interface that frequently results in vertical root fracture — a non-restorable complication. Fiber posts (glass fiber, quartz fiber, or carbon fiber) have a modulus of approximately 15 to 40 GPa — closely matching dentin — distributing stress more favorably. A 2019 systematic review in the Journal of Dental Research found that fiber post-restored teeth had significantly lower root fracture rates than metal post-restored teeth, with comparable overall survival at 5 and 10 years. The ferrule effect — at least 1.5 to 2 millimeters of sound supragingival dentin circumferentially engaged by the crown margin — is the single most important predictor of long-term survival, more significant than post type or cementation technique.
Why Choose a Specialist?
Post and core buildup at Aloha Dental Specialty Center is planned collaboratively between Dr. Ostovar (endodontic treatment) and the restorative team including Dr. Gvozden. Post space preparation is performed under magnification to preserve root wall thickness. Fiber post systems are used as the standard of care, with material selection based on the individual tooth's structural needs and the planned crown type.
Your Core Build-up Endo Treatment Steps
- Consultation & Exam: Comprehensive core build-up endo evaluation with CBCT 3D imaging at our Beaverton office.
- Treatment Plan: Board-certified specialist discusses your core build-up endo options, timeline, and costs. Our procedures maintain a 95%+ success rate, backed by advanced 3D imaging and evidence-based protocols.
- Treatment: Procedure performed with comfort options including sedation if needed.
- Follow-Up: Post-treatment monitoring and care coordination for best healing.
Schedule Your Appointment Today
Book a consultation with our board-certified specialists at Aloha Dental Specialty Center in Beaverton, OR. Call (503) 822-0096 Office hours: Monday through Friday 7 AM to 7 PM, Saturday and Sunday 8 AM to 2 PM. or request an appointment online.
Related Services at Aloha Dental Specialty Center:
Dental Implants · Oral Surgery · Root Canal · Invisalign · Periodontics · Pediatric · TMJ Treatment · Sedation · Cosmetic · Emergency · Sleep Apnea
A Note from Your Dental Team
In my experience, the patients who get the best results from core build-up endo are those who come in with realistic expectations and follow their post-treatment instructions carefully. I’d rather spend extra time explaining what to expect than have a patient be surprised later.
“Every patient I see has a different story, a different set of concerns, and a different definition of what ‘success’ looks like. That’s why I don’t believe in one-size-fits-all treatment plans. When you come in for a consultation, I’ll listen first, examine second, and recommend third.
I also won’t recommend a procedure you don’t need. If your tooth can be saved with a filling instead of a crown, I’ll tell you that. If watchful waiting is appropriate, I’ll explain why. My job isn’t to sell treatment — it’s to give you my honest clinical judgment so you can make an informed decision.
If you have questions about whether this treatment is right for you, or if you’ve been told you need this procedure by another dentist and want a second opinion, call us at (503) 822-0096. We’re happy to take the time to explain everything — no rush, no pressure.”
— Dr. Merat Ostovar & Dr. Jovan Gvozden | Aloha Dental Specialty Center, Beaverton, OR
I know many patients feel anxious about dental procedures — you’re not alone in that. What I hear most often after treatment is: “That was so much easier than I expected.” We’re here to make this as comfortable as possible for you.
Are You a Candidate for Core Build-up Endo?
Most patients in good general health are candidates for core build-up endo. However, certain factors may affect your eligibility or require modifications to the treatment plan:
- Medical conditions: Uncontrolled diabetes, autoimmune disorders, or blood-thinning medications may require coordination with your physician before treatment.
- Bone quality: For core build-up endo involving the jawbone, adequate bone density is essential. A CBCT 3D scan during your consultation determines this precisely.
- Smoking: Tobacco use significantly impairs healing. We strongly recommend quitting 2-4 weeks before and after any surgical procedure.
- Age: There is generally no upper age limit. What matters is your overall health, not your age. We have successfully treated patients in their 80s and 90s.
The only way to know for certain is a consultation with our board-certified specialists. Call (503) 822-0096 to schedule your evaluation — we’ll tell you honestly whether this is the right treatment for your situation.
Typical Healing Timeline:
Days 1-3: Initial healing, mild swelling managed with ice and medication. Days 4-7: Swelling subsides, gradual return to normal diet. Weeks 2-4: Soft tissue heals completely. Months 2-6: Bone remodeling and full integration (for surgical procedures). Individual recovery varies — we provide detailed post-op instructions specific to your procedure.
For additional clinical information, visit the American Dental Association (ADA).
Last reviewed by our dental specialists: March 2026. Clinical information on this page reflects current evidence-based dental practices.
Related Dental Services
Frequently Asked Questions
What is a post and core buildup?
A post is a thin rod cemented into a prepared root canal to provide retention for a core — a buildup of restorative material that recreates the shape of the tooth. Together, the post and core provide the foundation for a crown on a root-canal-treated tooth that has lost significant structure.
Does every root-canal-treated tooth need a post?
No. Posts are needed only when insufficient coronal tooth structure remains to retain a core and crown on its own. If at least two to three walls of the tooth are intact with adequate height above the gum line, a core buildup without a post provides sufficient retention. Unnecessary posts weaken the root by removing dentin.
What is the difference between a fiber post and a metal post?
Fiber posts (glass or quartz fiber in resin matrix) have flexibility similar to tooth dentin, distributing biting forces gradually. Metal posts (cast gold or stainless steel) are rigid and concentrate stress at the root wall, increasing fracture risk. Modern evidence strongly favors fiber posts for most clinical situations due to lower catastrophic failure rates.
Can a post crack the root?
Rigid metal posts can cause vertical root fracture — a non-restorable complication requiring extraction. Fiber posts reduce this risk significantly because they flex with the tooth. Proper post space preparation that preserves adequate root wall thickness (at least 1 millimeter circumferentially) further minimizes fracture risk.
How is a post placed in the tooth?
After root canal treatment, Dr. Ostovar removes a portion of the gutta-percha filling from one canal to create post space, preserving at least 4 to 5 millimeters of apical seal. The canal is shaped to fit the post, the fiber post is tried in for fit, and then bonded with dual-cure resin cement. A composite core is built around the post to recreate the tooth shape.
What is the ferrule effect and why does it matter?
The ferrule is the band of sound tooth structure above the gum line that the crown margin encircles. A ferrule of at least 1.5 to 2 millimeters is the single most important factor in long-term survival of post-and-core restorations. It provides a bracing effect against lateral forces. Without adequate ferrule, crown lengthening surgery may be recommended before the crown is placed.
How long does a post and core last?
With proper case selection, adequate ferrule, and a well-fitting crown, a fiber post and core restoration can last 15 to 20 years or more. Published studies show survival rates of 85 to 95 percent at 10-year follow-up. The most common failure mode is post debonding — which is repairable — rather than root fracture.
Is the post placement done during the root canal visit or separately?
Post space preparation is typically done either at the end of the root canal appointment or at a separate visit before the crown preparation. If Dr. Ostovar performs the post space preparation, he does so under magnification to ensure the apical seal is preserved and the root wall thickness is adequate.
What is crown lengthening and when is it needed with a post and core?
Crown lengthening is a surgical procedure that exposes more tooth structure above the gum line by repositioning the gum tissue and bone. It is recommended when the remaining tooth structure does not provide adequate ferrule for the crown. Without sufficient ferrule, even a well-placed post and core has a poor long-term prognosis.
Can a post and core be removed if retreatment is needed?
Fiber posts can be removed by drilling through them with a specialized post removal bur — the fiber material grinds away easily without transmitting excessive force to the root wall. Metal posts require ultrasonic vibration to loosen the cement bond before extraction. Post removal for retreatment is more complex but routinely performed by endodontic specialists.
Does a post make the tooth stronger?
No. This is a common misconception. A post provides retention for the core buildup — it does not strengthen the remaining tooth structure. In fact, post space preparation removes dentin, slightly weakening the root. Posts should be placed only when structural necessity demands it, not as a routine addition to every root canal.
What type of crown goes over a post and core?
Any crown type can be placed over a post and core — porcelain-fused-to-metal, all-ceramic, or zirconia. The crown choice depends on the tooth location, esthetic requirements, and occlusal forces. For posterior teeth with fiber posts, full-coverage crowns are standard. Your restorative dentist will recommend the best crown material.
How much does a post and core cost?
Post and core is billed as a separate procedure from the root canal and crown. The fee depends on the type of post used and the complexity of the buildup. Most dental insurance plans cover post and core under major restorative benefits. We provide a combined cost estimate for the root canal, post and core, and crown so you understand the total investment.
Can a tooth with a post and core still get a cavity?
Yes. The junction between the crown margin and the tooth structure remains susceptible to decay, especially if oral hygiene is poor or the crown margin does not fit precisely. Regular dental checkups, daily flossing, and fluoride use protect the margins of crowned teeth from recurrent decay.
What happens if the post debonds or the core breaks?
If a fiber post debonds, it can typically be re-cemented or replaced without damaging the root — one of the major advantages of fiber posts over metal posts. A broken core can also be rebuilt. These are repairable failures, unlike vertical root fracture from a metal post, which requires extraction.
Need a Crown After Root Canal? Ask About Post and Core Options
Call our Beaverton office or request an appointment online. We look forward to helping you.
Clinically Reviewed by Dr. Merat Ostovar, DMD
Doctor of Dental Medicine | Implant & Specialty Dentistry | 15+ Years Experience
Aloha Dental Specialty Center — Serving Aloha, Beaverton, Hillsboro & Greater Portland
Last updated: March 19, 2026