Before you decide

Dental Implant Disadvantages: Risks, Limits and Who Should Wait

Implants are a reliable way to replace teeth, but they involve surgery, time and lifelong care, and they are not right for everyone. This guide sets out the downsides plainly.

Written by Creative Arts Clinical TeamClinically reviewed: 9 min read

Quick answer

What are the disadvantages of dental implants?

The main dental implant disadvantages are that they need minor surgery, take months to complete, cost more upfront than most alternatives and may need bone grafting first. Risks include infection, nerve or sinus involvement and an implant that does not bond with the bone. Long term, gum and bone inflammation (peri-implantitis) and mechanical problems can occur. At Creative Arts in Dubai, 3D CBCT planning and a written plan set out your specific risks first.

Who treats you here Dr. Firas Osman Oral & Maxillofacial Surgeon & Implantologist · Dr. Khalid Saeed Co-founder & Dentist · Dr. Kinan Bonni Dentist

Every dentist’s licence can be checked on the DHA Sheryan medical directory.

What are the main disadvantages of dental implants?

Most of the downsides are not hidden dangers but practical facts that are easy to underestimate:

  • It is surgery. Placing an implant means opening the gum and preparing the bone under local anaesthetic, with a few days of swelling and soreness afterwards.
  • It takes time. The bone typically needs about three to six months to bond with the implant before the final crown, longer if a graft is needed first.
  • The upfront cost is higher than a bridge or leaving the gap, although the comparison changes over decades.
  • You need enough healthy bone. Bone shrinks after a tooth is lost, so some patients need grafting or a sinus lift first.
  • It needs care for life. An implant cannot decay, but the gum and bone around it can become diseased if plaque is left.
  • It can fail. Not often, but an implant that does not bond, or loses bone later, has to be removed.

None of these make implants a poor choice. They are the reasons an honest assessment comes before any decision.

What can go wrong with a dental implant, and when?

Risks change with time. Knowing when each one tends to appear helps you recognise what is normal and what is not.

WhenPossible problemHow the risk is lowered
During surgeryBleeding, damage to a neighbouring root, nerve contact in the lower jaw, opening into the sinus in the upper jaw3D CBCT measurement, careful planning and guided placement where indicated
First days to weeksSwelling, bruising, infection, stitches openingWritten aftercare, no smoking, good cleaning, review visit
First monthsThe implant does not bond with the bone (early failure)Treating gum disease first, controlling diabetes, stopping smoking, avoiding load while healing
Years laterPeri-implantitis, screw loosening, chipped crown, gum recessionDaily cleaning, regular maintenance, a night guard if you grind
Front teethA grey shadow through thin gum, a gap where gum used to fill between teethPlanning the gum and bone with the final crown in mind

Our guide to signs of a failing implant explains which symptoms need a check.

Can dental implants damage nerves or sinuses?

They can, which is why measuring the bone in three dimensions matters. In the lower jaw a large nerve runs through the bone beneath the back teeth, supplying feeling to the lower lip and chin. An implant that presses on or injures it can cause numbness, tingling or altered sensation. This is uncommon with careful planning, often improves over weeks or months, and in a small number of cases can be lasting.

In the upper jaw the back teeth sit beneath the maxillary sinus. If there is too little bone, an implant can enter the sinus, which can lead to sinus irritation or infection. When bone height is short, a sinus lift or a different plan is used rather than forcing an implant into insufficient bone.

At Creative Arts, a 3D CBCT scan measures the distance to these structures before surgery, and guided implant surgery is used where a precise position matters. If you notice numbness that has not worn off by the day after surgery, contact the clinic rather than waiting.

What goes wrong with implants long term?

Implants have a strong long-term record. A systematic review by Howe and colleagues (2019) estimated 10-year implant survival at about 96%, and lower in patients aged 65 and over. Survival is not the same as being trouble-free, though. The commonest long-term issues are:

  • Peri-implantitis: plaque-driven inflammation that destroys bone around the implant. The American Academy of Periodontology notes that it usually needs surgical treatment once bone is involved; see peri-implantitis.
  • Mechanical problems: a loosened screw, a chipped crown or, rarely, a fractured component, more likely in people who grind.
  • Food trapping: natural teeth keep moving slightly over a lifetime while an implant does not, so a small gap can open next to an implant crown years later.
  • Gum changes: recession that exposes the edge of the crown, which matters most at the front of the mouth.

Most of these are found early at routine reviews and treated simply, which is why maintenance visits are part of the plan rather than an extra.

Who should not get implants, or should wait?

Very few conditions rule implants out completely. Many simply need to be addressed or planned around first.

Usually workable once addressed

  • Gum disease that is treated and stable before surgery
  • Diabetes that is well controlled
  • Smokers who stop or cut down around surgery
  • Thin or short bone, with grafting or a sinus lift
  • Blood thinners, managed with your doctor's advice
  • Osteoporosis tablets, with a risk discussion first

Need caution, delay or another option

  • Teenagers whose jaws are still growing
  • Pregnancy: elective surgery is usually postponed
  • Poorly controlled diabetes or another uncontrolled illness
  • Radiotherapy to the jaws, or antiresorptive drugs given by injection for cancer
  • Heavy smoking that will continue
  • Being unable to clean around an implant or attend reviews

Smoking is the risk you control most

A systematic review by Mustapha and colleagues (2022) found that implants placed in smokers had a significantly higher risk of failure and more bone loss than in non-smokers. Stopping before surgery and staying stopped through healing, including shisha and vaping, gives the implant a better chance.

Is an implant worth it compared with a bridge?

Every option for a missing tooth has disadvantages. The question is which set suits you.

Dental implantFixed bridgeLeaving the gap
Main disadvantageSurgery, months of healing, higher upfront costNeighbouring teeth are filed down to carry itTeeth drift and bone shrinks over time
Effect on other teethNone; stands aloneSupporting teeth carry extra load and risk of decay under the bridgeNeighbours may tip, the opposite tooth may over-erupt
Bone at the gapHelps keep the bone under itBone under the false tooth still shrinksBone shrinks
CleaningLike a tooth, plus interdental brushesThreading under the false toothFood trapping at the gap
If it failsRemove, heal, often re-placeOften a longer bridge or an implantOptions narrow as bone is lost

For costs over time, see implant vs bridge cost; for the clinical comparison, see implants vs bridges.

Want to know which of these risks apply to you? At Creative Arts in Dubai, implant planning starts with an examination and 3D CBCT scan, and you receive a written plan with the alternatives before deciding.

Explore dental implants

How are implant risks reduced at Creative Arts?

Implant surgery is carried out by Dr. Firas Osman, Oral & Maxillofacial Surgeon & Implantologist, with Dr. Khalid Saeed and Dr. Kinan Bonni. Before any surgery, your medical history is reviewed, gum disease and decay are treated, and the 3D CBCT scan is used to plan the implant position around the crown it will carry. The written, itemised plan includes the alternatives, such as a bridge, and any grafting needed. Surgery is done under local anaesthetic, with sedation options for anxious patients chosen after a medical-history review. You receive written aftercare and a review appointment, and the crown is made by Creative Art Dental Lab in the same building.

If implants are not right for you now, that is a valid outcome of the assessment. Common myths are covered in dental implant myths, and questions about implant systems in dental implant brands.

Sources

Clinical statements on this page are consistent with these independent sources. They describe averages from studies, not a promise for any one patient.

  1. Howe MS, Keys W, Richards D. Long-term (10-year) dental implant survival: A systematic review and sensitivity meta-analysis. Journal of Dentistry, 2019.
  2. Mustapha AD, Salame Z, Chrcanovic BR. Smoking and Dental Implants: A Systematic Review and Meta-Analysis. Medicina, 2022.
  3. American Academy of Periodontology. Peri-Implant Diseases. American Academy of Periodontology, 2024.
Patient questions

Frequently asked questions

What are the risks of dental implants?

Surgical risks include bleeding, infection, damage to a neighbouring root, contact with the nerve in the lower jaw causing numbness, and entering the sinus in the upper jaw. In the first months, the implant may fail to bond with the bone. Years later, peri-implantitis, loose screws and chipped crowns are the usual problems. Careful 3D planning and maintenance lower each of these risks.

What are the long-term disadvantages of dental implants?

The long-term disadvantages are mainly maintenance-related: the gum and bone around an implant can become inflamed if plaque is left, screws can loosen and crowns can chip, especially in people who grind. A small gap can open next to an implant over the years as natural teeth shift. Regular reviews and cleaning catch most of these early.

Can a dental implant cause permanent numbness?

It is possible but uncommon. In the lower jaw, an implant placed too close to the nerve can cause numbness or tingling of the lip and chin. It often improves over weeks or months, but in a small number of cases it can be lasting. Measuring the bone with a 3D CBCT scan before surgery is the main way this risk is reduced.

Who is not a good candidate for dental implants?

Implants usually need to wait for teenagers whose jaws are still growing and during pregnancy. Uncontrolled diabetes, heavy continued smoking, untreated gum disease, radiotherapy to the jaws and some injected bone medicines call for caution or another option. Many other conditions, including treated gum disease and controlled diabetes, can be planned around after a full assessment.

Are dental implant disadvantages worse for older people?

Age alone is not a barrier, and many people in their seventies and older have implants. Research shows long-term survival is somewhat lower in patients over 65, often because of general health, medicines and dexterity for cleaning. The assessment looks at these factors, and simpler designs that are easy to clean may be chosen.

What happens if a dental implant fails?

An implant that loses its bond with the bone is removed, usually a short procedure. The site heals, sometimes with a bone graft, and in many cases a new implant can be placed after several months. If another implant is not suitable, a bridge or another option is discussed. The cause of failure is identified first so it is not repeated.

Do dental implants hurt more than a bridge?

Implant surgery is done under local anaesthetic, and most people describe a few days of soreness and swelling afterwards, usually managed with over-the-counter pain relief. A bridge involves no surgery, but the supporting teeth are filed down. Discomfort is rarely the deciding factor; bone, neighbouring teeth and long-term maintenance usually matter more.

Talk to a dentist about your case

A consultation ends with a diagnosis and a written, itemised plan — not a sales pitch. Book online, message us on WhatsApp, or call the clinic.

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