Dental procedures, including wisdom tooth extractions and fillings, are generally safe. However, some patients experience unexpected complications such as wound dehiscence, infections, nerve damage, reactivation of viral infections, and even delayed pain in a filled tooth years later.

Wound Dehiscence and Poor Healing
Wound dehiscence occurs when a surgical site reopens after a procedure, disrupting the healing process. This can be caused by:
- Underlying health conditions (e.g., diabetes, blood disorders).
- Local infections (such as dry socket).
- Trauma from dental instruments.
- Suture failure (stitches breaking prematurely).
- Tumors (benign or malignant) that prevent proper healing.
Patients with weakened immune systems or poor healing capacity should take extra precautions after tooth extractions and other dental surgeries.
Reactivation of Herpes Zoster (Shingles) After Wisdom Tooth Extraction
In some cases, wisdom tooth removal can reactivate herpes zoster (shingles) in individuals who have had chickenpox in the past. This can lead to:
- Cranial nerve neuropathy.
- Peripheral facial palsy (temporary facial paralysis).
The symptoms usually subside once anesthesia wears off, but in some cases, the onset of symptoms is delayed. Antiviral treatment is necessary to prevent complications. This condition can sometimes be misdiagnosed as Bell’s palsy.
Risk of Infections After Dental Procedure
There is always a risk of infection transmission after a dental procedure, especially if contaminated instruments or surfaces are involved. Infections can spread through:
- Dental instruments, chairs, and even door handles.
- Patients touching gauze or film pads after surgery without washing their hands.
Potential Infections from Contaminated Equipment
- Hepatitis B, C, D, or E.
- HIV/AIDS.
- Prion diseases (such as Creutzfeldt-Jakob disease, a spongiform encephalopathy).
Precautions:
- Patients with blood-borne infections should schedule dental procedures late in the day to minimize the risk of spreading the infection.
- Proper disposal of surgical materials, including film sponges, is essential.
Cases of Infection Transmission
- A 16-year-old girl allegedly contracted an infection from a blood transfusion after her wisdom teeth removal and later died at age 22.
- A 17-year-old male received HIV-infected blood during wisdom tooth extraction in 1983. He had no symptoms until 1991, was diagnosed with AIDS, and passed away at age 28.
- A 19-year-old woman reportedly contracted HIV from her dentist in 1987 after having two wisdom teeth removed. She was diagnosed with AIDS in 1990 and died at age 23.
While these cases are rare, they highlight the importance of infection control in dental clinics.
Fatalities After Wisdom Tooth Removal
While death from wisdom tooth extraction is extremely rare, it has occurred due to:
- Complications from anesthesia.
- Severe infections leading to sepsis.
- Excessive bleeding (hemorrhage).
- Blood clots (embolism).
If resuscitation efforts are required during surgery, additional physical injuries such as vocal cord trauma can occur.
Tooth with Filling Hurts Years Later – Delayed Pain and Nerve Issues
Many patients experience pain in a tooth with a filling years after the procedure. This delayed pain can be caused by:
- New Decay Under the Filling
- Over time, bacteria can get under the filling, leading to new cavities and pain.
- This may require a replacement filling or a root canal.
- Cracked or Worn-Out Filling
- Fillings can wear down or crack, exposing the tooth’s inner layers.
- This can lead to pain and sensitivity.
- Nerve Damage (Pulpitis)
- If a deep filling irritates the nerve, it can cause chronic inflammation (pulpitis).
- In severe cases, the nerve may die, requiring a root canal or extraction.
- Bite Misalignment (High Filling)
- If the filling is too high, it can cause discomfort while chewing.
- A simple bite adjustment by a dentist can resolve the issue.
- Receding Gums and Root Exposure
- As gums recede, the tooth’s roots become exposed, causing sharp pain and sensitivity.
- Desensitizing toothpaste or fluoride treatments can help.
While dental procedures like wisdom tooth extractions and fillings are generally safe, they can sometimes lead to serious complications.

Key Takeaways:
- Wound dehiscence can delay healing and may be caused by infections, diabetes, or trauma.
- Herpes zoster (shingles) may reactivate after wisdom tooth removal, leading to temporary facial paralysis.
- Infections can spread through contaminated dental equipment or improper post-surgical hygiene.
- Tooth pain years after a filling may be due to new decay, nerve damage, or a high bite.
- While death from wisdom tooth extraction is rare, complications from anesthesia, bleeding, or infections can be life-threatening.
If you experience delayed pain, infection symptoms, or unusual side effects after a dental procedure, consult a dentist or medical professional immediately.