If you are new to Hamilton for McMaster or Mohawk, the first few weeks can be a practical time to set up dental care. A first visit usually focuses on your dental history, a look at your teeth and gums, and a conversation about your goals for care.

Bring your dental insurance or student benefit details if you have them, a list of medicines, the name of your previous dentist if you want records transferred, and any questions about sensitivity, bleeding gums, or wisdom teeth.

When to book sooner rather than wait

If you have a broken tooth, facial swelling, a loose tooth after an injury, or new pain around a wisdom tooth, it is better to book an assessment sooner. A dentist can help sort out whether the issue looks like irritation, decay, gum inflammation, or something that needs faster treatment planning.

Wisdom teeth do not always need removal. The decision depends on your symptoms, the exam, and sometimes X-rays. Good questions to ask are: Is there enough space? Is there gum irritation or decay? Is the tooth beside it at risk?

Questions worth asking at the first appointment

Ask how your dentist recommends spacing checkups for you, whether you need new X-rays, and what you should do if a tooth starts hurting before a midterm or exam week. If you feel nervous about dental care, mention that early so the team can plan the visit with that in mind.

A calm next step in Hamilton

If you are settling into campus life, you can start with Excel Dental’s downtown Hamilton office and book a first visit when it fits your schedule. A simple exam can help you review routine care, talk through wisdom tooth questions, and decide whether anything needs attention sooner.

Key sources

• Government of Canada: Oral Health
• Ontario oral health topic page
• AAOMS third-molar care parameters

This article is for general education only and does not replace personalized advice, diagnosis, or treatment from a licensed dentist.

CBCT is a 3D dental scan. It can show teeth, roots, bone, nerves, sinuses, and nearby anatomy in more detail than a standard 2D dental X-ray. The important question, however, is not whether 3D imaging is newer. It is whether the scan is likely to answer a specific clinical question that could change diagnosis, safety, or treatment planning.

That distinction matters. Current guidance from the American Dental Association and a 2026 evidence-based radiography recommendation support selecting dental imaging based on the patient’s history, exam findings, previous images, and the clinical question being asked. In other words, CBCT is a selective planning tool, not a routine replacement for regular dental X-rays.

What a CBCT scan can show that 2D X-rays may miss

Standard dental X-rays are still the right starting point for many situations. They are often very useful for checking decay, bone levels, infections, and other common concerns. But because they flatten a three-dimensional area into a two-dimensional picture, some details can overlap or be harder to judge clearly.

A CBCT scan creates a 3D view of a limited area of the mouth or jaws. Depending on the reason for the scan, that added detail may help a dentist or specialist assess:

• the height and width of bone
• the position and shape of roots
• the relationship between teeth and nerves
• the location of the sinus floor
• complex anatomy that may not be obvious on 2D images
• some bone defects or surgical landmarks

That does not mean more imaging is automatically better. It means 3D imaging can be helpful when the extra detail is likely to affect the plan.

When CBCT may be worth it

Implant planning

CBCT is often discussed before some dental implant procedures because implants rely on accurate assessment of available bone and nearby anatomy. In selected cases, 3D imaging may help show bone dimensions and the position of structures such as the maxillary sinus or the inferior alveolar nerve. A systematic review in implant dentistry supports the value of CBCT for presurgical assessment in appropriate cases, while also reinforcing that radiation exposure should still be justified case by case.

That said, not every implant case automatically needs a CBCT scan. The decision depends on the site, the anatomy, the planned procedure, and whether standard imaging already provides enough information.

Selected root canal situations

Most routine endodontic care begins with clinical examination and standard dental images. But a CBCT scan may be considered when 2D imaging is inconclusive or when the anatomy appears complex. Examples can include a suspected fracture, an uncertain source of persistent symptoms, unusual root anatomy, or questions about the extent of a lesion that may affect treatment planning.

The key point for patients is that CBCT is usually reserved for selected situations where the extra detail may answer a question that standard images have not resolved.

Wisdom teeth close to important anatomy

For some wisdom teeth, a panoramic X-ray provides enough information. In other cases, the roots may appear close to a major nerve in the lower jaw or close to the sinus in the upper jaw. When that relationship is unclear and could influence the surgical approach or risk discussion, a CBCT scan may be considered to better understand the anatomy before treatment.

Some complex oral surgery or periodontal decisions

In selected surgical or periodontal cases, 3D imaging may help clarify the shape of a defect, the extent of bone loss in a specific area, or the anatomy around a planned procedure. Again, the standard is not to scan routinely. The standard is to ask whether the scan is likely to change management.

When standard 2D X-rays are often enough

Many dental visits do not call for 3D imaging. Standard X-rays are often enough for:

• many routine checkups and recall visits
• basic cavity detection when imaging is indicated
• many straightforward toothaches or infections
• monitoring many common dental conditions
• many uncomplicated treatment plans where 3D information is unlikely to change the next step

If a dentist says a CBCT scan is not needed, that is not a sign of missing technology. It may simply mean that standard imaging already answers the clinical question well enough.

How dentists try to minimize radiation

Dental imaging should be justified, not automatic. The American Dental Association notes that radiographs should be prescribed only when necessary for diagnosis and treatment planning. For CBCT specifically, the 2026 patient-selection recommendations support using it when lower-exposure options will not provide the information needed.

In practice, that means dentists and specialists try to reduce unnecessary exposure by:

• starting with a history and clinical exam
• reviewing any recent X-rays that already exist
• ordering imaging only for a specific clinical reason
• choosing the smallest field of view that answers the question
• avoiding 3D scans when 2D images are enough

Patients do not need to memorize imaging terminology to ask good questions. It is reasonable to ask what the scan is expected to show and whether it is likely to change the plan.

Ontario rules patients should know

Ontario adds an important patient-safety safeguard. According to the Royal College of Dental Surgeons of Ontario, dentists or specialists who prescribe, order, take, interpret, or report on CBCT scans must be CT-authorized by the RCDSO.

This is also why referrals matter. If a general dentist believes a CBCT scan may be helpful, that dentist can identify the possible need and refer the patient to a CT-authorized dentist to determine whether the scan is clinically justified. The referring dentist does not need CT authorization if they are not prescribing, ordering, taking, interpreting, or reporting on the scan.

The RCDSO also says referrals for CBCT acquisition should include enough clinical information to justify the scan. That includes relevant history, a provisional diagnosis or proposed treatment, and copies or reports of recent images from the area of interest when available. This helps reduce inappropriate or unnecessary imaging and supports safer treatment planning.

Questions to ask before agreeing to a CBCT scan

If a 3D scan is recommended, it is reasonable to ask:

• What question will this scan answer?
• Could the result change the treatment plan or improve risk planning?
• Do my existing X-rays already answer the question?
• Is a smaller field of view possible?
• Who will interpret the scan and explain the findings?

These questions are not challenging the dentist. They are part of informed decision-making.

The bottom line

CBCT can be very useful in selected situations, especially when a complex implant, root canal, wisdom tooth, surgical, or periodontal decision depends on anatomy that standard images cannot show clearly enough. But it is not a routine replacement for regular dental X-rays, and it should not be ordered simply because it is available.

The most appropriate scan is the one that answers the right question with the least reasonable exposure. If a complex treatment decision comes up, ask how 3D imaging would change the plan, what alternatives exist, and who will review the scan.

If you are in Hamilton and a complex dental decision is being discussed, Excel Dental can help review the questions involved, explain whether 3D imaging may add useful planning information, and help you understand what kind of imaging review may be appropriate for your case.

Sources

• RCDSO CBCT Scan Referrals
• American Dental Association X-Rays/Radiographs
• JADA CBCT Patient Selection Recommendations
• Systematic Review of CBCT in Implant Dentistry
• ADA Clinical Guidelines
• RCDSO Standards and Guidance
• Pubmed
• Pubmed
• Pubmed
• Pubmed
• Pubmed
• Adanews

This article is for general education only and does not replace personalized advice, diagnosis, or treatment from a licensed dentist.

If you are having a tooth removed or wisdom teeth taken out, you might assume antibiotics are part of the plan. For many years, they were commonly prescribed “just in case.”

Today, we know more. In most healthy patients, routine antibiotics after a simple extraction or wisdom tooth removal are not necessary. Prescribing decisions should be based on your individual risk factors, the presence of infection, and current evidence-based guidance.

As a dentist practicing in Hamilton, my goal is to balance safety, comfort, and responsible prescribing. That means using antibiotics when they are truly helpful and avoiding them when they are not.

How healing normally works after a tooth extraction

After a tooth is removed, your body starts healing right away. A blood clot forms in the socket. This clot protects the bone and nerves underneath and provides a foundation for new tissue to grow.

Mild to moderate swelling, tenderness, and some bruising are normal. Discomfort often peaks around day two or three, then gradually improves.

Most healthy patients heal without infection. The mouth has many bacteria, but your immune system and proper post-operative care usually keep things under control.

It is also important to clarify that dry socket, also called alveolar osteitis, is not primarily a bacterial infection. It is an inflammatory condition where the blood clot is lost too early. Antibiotics do not prevent or treat dry socket in most cases.

What antibiotics do and do not do after oral surgery

Antibiotics are designed to treat bacterial infections. They can help when there is:

• Active spreading infection
• Facial swelling consistent with cellulitis
• Systemic signs such as fever or malaise
• Certain high-risk medical conditions

They do not:

• Speed up normal healing in healthy patients
• Prevent most routine post-extraction discomfort
• Replace proper surgical technique and aftercare

For uncomplicated extractions in healthy individuals, good surgical care and clear home instructions are usually enough.

What the evidence says about wisdom tooth surgery and antibiotics

A Cochrane review examining antibiotics for preventing infection after surgical removal of wisdom teeth found that antibiotics can reduce the risk of infection in some cases. However, the overall baseline risk of infection in healthy patients is relatively low.

This means that while antibiotics may lower the relative risk, the absolute benefit for most healthy individuals is small. The review also highlights potential harms, including side effects and contribution to antibiotic resistance.

In plain language, some patients may benefit, but routine use for everyone is not justified based on current evidence.

Canadian guidance on responsible antibiotic use

Choosing Wisely Canada includes recommendations for dentistry that support avoiding unnecessary antibiotic use. The focus is on stewardship: using antibiotics only when clearly indicated.

The Government of Canada has identified antimicrobial resistance as a significant public health issue. Overuse and misuse of antibiotics contribute to bacteria becoming harder to treat over time.

In Ontario, the Royal College of Dental Surgeons of Ontario provides standards and advisories that support appropriate prescribing as part of the professional standard of care.

These principles do not mean antibiotics are unsafe. They mean we should use them thoughtfully and only when the expected benefits outweigh the risks.

When antibiotics may be appropriate

There are situations where antibiotics are important and appropriate after dental surgery.

According to specialty guidance such as the AAOMS Parameters of Care, antibiotics are indicated when there is:

• Spreading infection beyond the immediate area
• Significant swelling affecting facial spaces
• Systemic involvement such as fever

They may also be considered for certain higher-risk patients, including:

• People who are immunocompromised
• Patients with poorly controlled diabetes
• Individuals undergoing certain cancer treatments
• Specific cardiac conditions that require prophylaxis under current guidelines

Each case is assessed individually. Your medical history, the complexity of the surgery, and clinical findings all matter.

Risks of unnecessary antibiotics

Antibiotics are generally safe when used appropriately, but they are not risk-free.

Potential harms include:

• Allergic reactions, which can range from mild to severe
• Gastrointestinal upset such as nausea or diarrhea
• Clostridioides difficile infection, which can be serious
• Contribution to antimicrobial resistance

From a public health perspective, antibiotic resistance means infections can become harder to treat in the future. This is why national health authorities in Canada emphasize stewardship.

Normal healing versus warning signs

Knowing what is normal can help you feel more confident after surgery.

Common and expected:

• Swelling that peaks around days two to three
• Mild bleeding or oozing in the first 24 hours
• Gradually improving discomfort

Call your dentist promptly if you notice:

• Increasing swelling after day three or four
• Fever
• Difficulty swallowing or breathing
• Spreading redness or firm swelling in the face or neck
• Severe pain that worsens rather than improves

These may signal infection or another complication that requires evaluation.

Questions to ask your dentist

If antibiotics are recommended, consider asking:

• What specific signs of infection are present in my case?
• What risk factors make antibiotics appropriate for me?
• What side effects should I watch for?

If antibiotics are not recommended, you can ask:

• What is my risk of infection based on this procedure?
• What symptoms should prompt me to call?
• How can I support healing at home?

An informed conversation helps you feel confident in your care plan.

Practical takeaway for Hamilton families

Most healthy patients do not need routine antibiotics after a simple extraction or wisdom tooth removal. Antibiotics are reserved for specific situations, such as spreading infection or certain medical risk factors.

Good surgical care, clear instructions, and close follow-up are the foundation of safe recovery. If you are unsure why antibiotics are or are not being prescribed in your case, ask. Your treatment plan should always reflect your individual health, your procedure, and current evidence-based guidance.

Oral surgery is about more than removing a tooth. It is about supporting your overall health with thoughtful, responsible care.

Sources

• https://choosingwiselycanada.org/recommendation/dentistry/
• https://aaoms.org/practice/clinical-care/parameters-of-care/
• https://www.canada.ca/en/public-health/services/diseases/antibiotic-resistance.html
• https://www.cochranelibrary.com/
• https://www.rcdso.org/en-ca/standards-guidelines-resources/standards-guidelines-advisories