Why are implants rejected? 3 mistakes to avoid immediately

Minh Phương
20/10/2026
Nguyễn Ngọc Bảo

Professional Consulting

D. Nguyễn Ngọc Bảo

Dentist

Implant rejection is a condition in which the tooth post cannot integrate with the jawbone, causing the implant area to be painful, loose, or forced to be removed. This is the most serious complication of dental implants. According to statistics, the rate of implant rejection can be from 2 - 5%. Most of the causes stem from seemingly small mistakes but seriously affect treatment results.

In this article, we point out the 3 most common mistakes and why they can cause implant rejection. Understand right to avoid mistakes - this will help you protect your health, save costs and maintain confidence when choosing implants. The content is edited from the sharing of Dr. Nguyen Ngoc Bao in the program "Dental Storyteller", a program specializing in oral health at Lac Viet Intech.

Mistake 1: Being in a hurry to have teeth to eat and chew right away

Dr. Ngoc Bao shared that many aunts, uncles, and cousins ​​whohave dental implantsoften want to have new teeth immediately. That is completely understandable. However, the implant cannot "fit" with the jawbone after just a few days. It needs time to biologically integrate - that is, the pillar must adhere firmly to the bone to withstand the force of long-term chewing.

Fast or slow healing time depends on many factors:

  • Age:Older people will have a slower bone regeneration rate, so recovery time will be longer.

  • Jaw bone condition:Anyone with bone loss or lack of bone must have a bone graft first. Thus, the waiting process will be longer than for people with good bone base.

  • Whole body health:Diseases such as diabetes, cardiovascular disease, high blood pressure... also reduce the ability to integrate the implant.

Uncle, you can imagine this is like planting a tree. Whether the tree is big or small, the roots still need time to firmly grasp the soil. Soil quality, plant type and surrounding conditions all affect the speed of rooting. Implants are the same - if you are hasty, the risk of failure will be high and the results will be difficult to be sustainable, the doctor shared.

(Dental implant process at Lac Viet dental clinic)

Mistake 2: Choosing the wrong dentist that is not reputable enough

Many aunts and uncles are easily attracted by online ads or unverified recommendations. But with implants, choosing the right dentistry is the key factor determining success. A reputable address must meet the following 4 criteria:

2.1. Implant specialist

Implant placement is a complex minor surgery that cannot be left to an untrained person. Doctors must be properly trained, have clear qualifications and practical experience. When doctors have strong expertise, they will know how to determine the position of the pillar, avoid nerves and blood vessels, and ensure safety for aunts, uncles, and siblings throughout the treatment process.

2.2. Modern equipment and technology

A reputable dental clinic must have a fully supporting mechanical system. Because implant placement does not only rely on the doctor's skills, but also requires technology to accurately measure, avoid errors and shorten treatment time. This is a resolute condition to ensure that an implant is not rejected

Pre-implant diagnostic technology

  • Cone Beam 3D CT machine: Helps doctors clearly see jaw bone structure, thickness, height, nerve location and maxillary sinus. Thanks to that, implant placement is calculated accurately, avoiding complications.

  • Intraoral Scanner: Replaces tooth impressions with traditional plaster. Fast, accurate and helps design crowns with correct bite.

Supporting technology when implanting

  • Surgical guide(Guideline): Like a map to help the doctor place the abutment in the right position, in the right direction, and at the right depth. Reduces the risk of ulnar deviation or nerve invasion. Having a surgical guide plays an important role in ensuring the implant is not rejected

  • Personalized abutments and restorations: Designed based on each case, helping to ensure aesthetics and close fit to each person's jawbone.

máng hướng dẫn phẫu thuật

The surgical guide is like a map to help the doctor place the abutment in the right position, in the right direction, at the right depth

2.3. Genuine implant materials

Many people believe that all implant posts are the same - that is a dangerous misunderstanding. Titanium quality and surface treatment technology determine whether the implant integrates well with the bone or not. Genuine implants with medical-grade surfaces will cost more, but in return are durability, integration and long life.

When the implant is not genuine or does not meet medical standards, it means you are putting a poor quality foreign object into your body. This can easily cause a rejection reaction because bones and soft tissues do not accept foreign objects. Impure titanium surfaces can cause inflammation, swelling, pain, infection or allergies. If the post cannot integrate with the bone, it will shake, causing bone loss and must be removed.

In severe cases, re-surgery, bone grafting or gum incisions may be required multiple times, which is both expensive and affects long-term health. Not to mention the floating pillar has no warranty and unknown origin, so when complications occur, the patient is the one who suffers. An implant is an object implanted into the body, so the quality must be absolutely safe and cannot be sacrificed for cheap price.

2.4. Contract and commitment to transparency

A reputable dentistry never works based on emotions or word of mouth. Before treatment, aunts, uncles, and siblings must sign a contract or commit to written treatment. It should clearly state:

  • All-inclusive cost from the beginning, no additional charges later.

  • Name of the implant, manufacturer and specific origin.

  • Warranty policy and liability of the dentist if any problems arise.

  • In case the implant is rejected, the dentist will have a plan to handle it

When all information is transparent on paper, you will not have to worry about price increases in the middle, will not worry about having to replace poor quality materials or being denied responsibility if complications occur. This is the most important step to protect the rights of implant workers that should not be overlooked.

See more:Warranty policy when implanting implants at Lac Viet Intech Dental Clinic

 

(Customers using dental implant services at Lac Viet Dental Clinic)

 Mistake 3: Neglecting care after dental implantation

Many aunts and uncles think that just after implanting an implant, they can use it for life, no need to come back again. examination. This is a very dangerous misunderstanding. No matter how sturdy an implant is, it can still be rejected if post-treatment care is neglected.

Why do we need regular follow-up examinations?

Check the tightening force of the abutment screw: After a period of chewing, the tightening force may gradually loosen. If left unchecked, the implant may misalign, loosen or break.

Early detect potential problems: The doctor will check for signs of broken screws, cracks in the implant neck, or peri-ulnar inflammation. At the same time, detect diseases in adjacent real teeth, if any.

In-depth cleaning of the area around the implant:Tartar, plaque and bacteria that accumulate over time can cause inflammation and bone loss around the implant. Regular cleaning helps keep the environment stable and avoid complications.

Re-examination is not just to check for peace of mind but is a way to prolong implant life, protect treatment results and prevent risks before it is too late.

See more:11 notes not to be missed after implant placement

 

(Customer Nguyen Manh Cuong uses dental implant service at Lac Viet Intech Dental Clinic)

Advice from Dr. Nguyen Ngoc Bao

Implant is a biological implant technique, requiring coordination between doctors, materials and the treatment process of the patient. According to clinical studies, more than 80% of failures occur due to 3 reasons: being impatient to shorten the osseointegration period, choosing the wrong treatment facility and not having regular follow-up examinations.

Therefore, for implants to last a long time and function stably, you need to:

  • Respect the physiological osseointegration process

  • Choose a doctor and dentist with sufficient expertise and technical qualifications

  • Follow-up, re-examination and care correct recommendation

Oral health is a long-term investment, not a short-term expense. If you are preparing for an implant or have problems after implantation and have any questions, pleaseleave a questionso the doctor can check and advise on the exact situation. Please follow Lac Viet Dental website or subscribe to Lac Viet Intech Dental YouTube channel. Continue to follow the next episodes of the Dentistry Story program.

 

Share

News on the same topic

Partner of Lac Viet Intech Dental Clinic

dentsplysirona
Ecligner
Straunman
Straunman
Invisalign
Swiss Dental Care
test1
Osstem Implant
Hotline Chat ngay Messenger Contact Zalo