CJ Henley, DMD, PA   /   San Marco, Jacksonville, Florida

Dental FAQ: answers from a Jacksonville dentist.
Honest answers to the questions patients ask Dr. Henley most.

Answers from CJ Henley, DMD, on cosmetic dentistry, dental implants, preventive care, and dental care before and after cancer treatment. Our practice is located in San Marco, Jacksonville, Florida. My approach is to listen carefully, preserve healthy teeth when possible, and explain your options clearly.

  • 35questions answered by Dr. Henley
  • 8topics, from checkups to cancer care
  • Since 2010Dr. Henley in practice in San Marco
  • Every visitwith Dr. Henley himself

About these answers

How to use this dental FAQ.

These answers provide general guidance; your recommendations depend on an examination and your dental and medical history. Pick a topic above, open a question, and follow the links to the full page on that treatment.

The questions are grouped the way patients usually ask them: checkups and X-rays, cosmetic dentistry, implants, medically complex and cancer-related care, fillings and gum health, pain and emergencies, and insurance and costs. If your question isn’t here, contact our office or see every service on what we do.

New patients, checkups and X-rays  ·  4 questions

Questions about checkups, first visits and dental X-rays.

How often you need a checkup, what happens at your first visit with Dr. Henley in Jacksonville, and when dental X-rays are worth taking.

How often should I see the dentist if I don’t have pain?

Regular care based on your risk, not just your symptoms.

Cavities, gum disease, and other dental problems can develop without pain. Many patients have preventive visits about every six months, but that is not the right schedule for everyone. I recommend an interval based on your gum health, cavity history, dry mouth, medical conditions, and home care. Patients with active disease or higher risk may need more frequent visits.

What should I expect at my first appointment with Dr. Henley?

Time to discuss your concerns, examine carefully, and understand your options.

Your first visit includes a review of your dental and medical history, an oral health evaluation, and X-rays when needed. We discuss your concerns, explain our findings, and review appropriate next steps without pressure. New patient appointments are typically scheduled for about two hours. Bring your current medication list and let us know about relevant medical treatment, previous dental difficulties, or anxiety before your visit.

Do I really need dental X-rays?

Imaging is selected to answer a clinical question.

Dental X-rays can reveal decay between teeth, bone loss, and problems around tooth roots that a visual examination may miss. They do not show every problem, including every tooth fracture. The type and timing of imaging should depend on your examination, symptoms, dental history, and disease risk, not an automatic schedule. When suitable previous images are available, we review them before deciding whether additional imaging is needed. You can see the equipment we use, typical radiation doses, and our full safety protocol on our digital and 3D imaging page.

Can dental X-rays increase cancer risk?

Low-dose imaging with a clear reason for each examination.

Dental X-rays use ionizing radiation and carry a small potential risk. With appropriately selected imaging, the expected diagnostic benefit generally outweighs the small radiation risk. Exposure varies by the examination; a small dental X-ray and a three-dimensional cone-beam CT scan are not equivalent. I recommend imaging only when clinically justified, using the appropriate technique and limiting exposure while obtaining the information needed for your care.

Cosmetic dentistry  ·  4 questions

Questions about veneers, bonding and cosmetic work.

How bonding and porcelain veneers differ, whether cosmetic dentistry harms natural teeth, how long restorations last, and what can be done about veneers or crowns that look unnatural.

What’s the difference between composite bonding and porcelain veneers?

Two ways to improve a smile, with different preparation and maintenance needs.

Composite bonding uses tooth-colored resin shaped directly on a tooth to repair chips, close selected gaps, or refine its appearance. Porcelain veneers are custom-made shells bonded mainly to the front surfaces of teeth to change their color, shape, or proportions. Veneers are not full-coverage crowns. Bonding can often preserve more tooth structure and is generally easier to repair; porcelain is more stain-resistant. Neither changes color with teeth whitening, so if you want lighter teeth, whiten first. The choice depends on your enamel, bite, goals, and maintenance expectations.

Will cosmetic dentistry damage my natural teeth?

Preserving healthy tooth structure while explaining irreversible changes.

Some cosmetic treatments require little or no tooth reduction; others permanently remove enamel. Porcelain veneers usually involve some preparation, and crowns generally require more extensive reshaping. These changes are not reversible, and sensitivity or future repair can occur. My goal is to choose the least invasive option that can reasonably meet your needs. We discuss alternatives, limitations, and long-term maintenance before changing healthy teeth.

Can veneers or crowns that look unnatural be improved?

Evaluate the shape, color, fit, and bite before deciding on replacement.

Often, yes. Bulky contours, mismatched color, excessive opacity, or proportions that do not suit your smile can make dental work look unnatural. The first step is to evaluate the restoration, the underlying tooth, your gums, and your bite. Some concerns can be addressed with adjustments or repairs; others require replacement. The goal is a natural-looking result that also supports healthy tissues and comfortable function.

How long do veneers, bonding, and crowns last?

Long-term results depend on the restoration and the patient.

These restorations can serve patients for many years, but none should be considered permanent or maintenance-free. Longevity depends on the amount of healthy tooth remaining, material selection, fit, bite forces, oral hygiene, and cavity risk. Grinding, dry mouth, and untreated gum disease can complicate maintenance. Bonding may need polishing or repair, while veneers and crowns may eventually need replacement. Regular reviews help identify problems early.

Dental implants and reconstruction  ·  5 questions

Questions about dental implants, bridges and full-mouth rehabilitation.

Whether dental implants are safe, why some fail, how an implant compares with a bridge, how long implants last, and what full-mouth rehabilitation really involves.

Are dental implants safe?

A useful tooth-replacement option with benefits and risks to consider.

Dental implants are an established option for replacing missing teeth in appropriately selected patients. They are not risk-free: complications can include infection, failure to integrate with bone, and injury to nearby structures. Planning includes evaluating bone, gums, medical history, medications, and the intended final restoration. We also discuss alternatives and the ongoing care needed to maintain the implant and replacement tooth.

Why do some dental implants fail?

Early healing problems and later disease require different evaluation.

An implant may fail to integrate with the bone during healing or lose support later. Peri-implantitis is inflammation around an implant with loss of supporting bone. Smoking, poorly controlled diabetes, a history of gum disease, and difficulty keeping the area clean can increase risk. A loose crown or screw is not necessarily a failed implant. Careful planning and maintenance reduce risk, but not every complication is preventable.

Is a dental implant better than a bridge?

The best option depends on your neighboring teeth, health, and priorities.

An implant can replace a missing tooth without using neighboring teeth for support and may help limit local bone loss. A conventional bridge relies on adjacent teeth and can be appropriate when those teeth already need crowns or when surgery is less suitable. We compare bone availability, medical risks, treatment time, cleaning needs, and cost. Neither option is automatically best for every patient.

Do dental implants last forever?

Long-lasting does not mean maintenance-free.

Implants can last for many years, sometimes decades, but lifetime success cannot be guaranteed. The implant in the bone and the crown, bridge, or denture it supports have different maintenance needs. Restorations can wear or fracture, and screws can loosen even when the implant remains stable. Daily cleaning and professional monitoring are essential. Report pain, bleeding, swelling, or movement rather than waiting for your next routine visit.

Does full-mouth rehabilitation mean removing all my teeth?

Comprehensive reconstruction can include preserving natural teeth.

No. Full-mouth rehabilitation is a coordinated plan to restore health, function, and appearance when problems affect much of the mouth. Depending on your needs, treatment may combine restorations on natural teeth, periodontal care, and replacement of missing teeth. It does not automatically mean extracting every tooth or placing implants throughout the mouth. I evaluate which teeth can be predictably maintained and explain the tradeoffs before recommending irreversible treatment.

Medically complex and cancer-related care  ·  8 questions

Questions about dental care with medical conditions and cancer treatment.

How radiation, chemotherapy, dry mouth, diabetes and bone medications change dental care, why a dental exam before head and neck radiation matters, and which mouth changes to have checked for oral cancer.

What does medically informed dental care mean?

Your medical history is part of the dental treatment plan.

Medically informed dental care means considering how your health conditions, medications, and previous treatments affect dental decisions. At our practice, that includes planning for patients with cancer-treatment histories, dry mouth, and other medical complexities, not only individual teeth. When necessary, we coordinate with your physicians and dental specialists. Read more about medically complex dental care. The aim is to choose appropriate treatment, timing, and prevention for your circumstances rather than use the same plan for everyone.

I’ve had radiation or chemotherapy. Is dental work different for me?

The type of treatment and the tissues involved make a difference.

It can be, but chemotherapy and radiation do not carry identical dental risks. Chemotherapy can affect the mouth, blood counts, infection risk, and healing, particularly during active treatment. Head and neck radiation can cause lasting dry mouth and changes in jawbone healing when those tissues receive radiation. Tell us what treatment you received, where it was directed, and when. We may need oncology records or medical coordination before planning care.

Do I need a dental evaluation before head and neck radiation?

Identify dental risks early and coordinate care with your oncology team.

Yes. A dental evaluation before head and neck radiation helps identify infection, advanced decay, gum disease, and teeth unlikely to remain maintainable after treatment. We also plan preventive care for possible dry mouth and increased cavity risk. Not every patient needs extractions. The dental plan depends on your findings, anticipated radiation exposure, and cancer-treatment schedule. Contact us as soon as radiation is being planned so any necessary dental care and healing can be coordinated without unnecessary delay to cancer treatment.

Can I have a tooth extraction or dental implant after head and neck radiation?

Previous radiation to the jaw requires a specific risk assessment.

Sometimes, but surgery in previously irradiated jawbone requires careful planning. Radiation can increase the risk of osteoradionecrosis, a condition in which damaged jawbone fails to heal and areas of bone die. Risk depends on the dose and location of radiation, the procedure, and your oral and medical health; it can persist long after treatment ends. We review relevant records and coordinate with your oncology team and an oral surgeon when appropriate. There is no single waiting period that makes surgery safe for everyone.

Why does dry mouth increase my risk of cavities?

Less saliva means less natural protection for your teeth.

Saliva helps clear food, neutralize acids, and supply minerals that protect teeth. Persistent dry mouth, or xerostomia, can increase decay risk, including around fillings and crowns, and can contribute to oral discomfort and fungal infections. Causes include medications, Sjögren’s disease, and radiation involving the salivary glands. Depending on the cause, care may include prescription-strength fluoride, saliva-support products, dietary changes, and closer follow-up. Do not stop a prescribed medication without discussing it with your clinician.

Can I get dental implants if I have diabetes, autoimmune disease, or osteoporosis?

A diagnosis alone does not determine implant eligibility.

Many patients with these conditions can receive implants, but suitability depends on disease control, medications, gum health, and healing capacity. Poorly controlled diabetes or significant immune suppression can increase complications. Osteoporosis alone does not automatically rule out implants, but some medications used to treat it require additional discussion. We assess your individual risks and coordinate with your physician when needed before deciding whether implant treatment is appropriate.

Can Fosamax, Prolia, or other bone medications affect dental treatment?

Medication type, dose, and reason for treatment matter.

Yes. Bisphosphonates such as alendronate (Fosamax) and medicines such as denosumab (Prolia or Xgeva) can increase the risk of medication-related osteonecrosis of the jaw. This complication is uncommon with osteoporosis treatment, while higher-dose regimens used for cancer generally carry greater risk. Tell us about current and past use before extractions, implants, or other bone surgery. Do not stop or delay medication on your own; treatment decisions should be coordinated with the prescribing clinician. Routine preventive dental care remains important.

What mouth or throat symptoms should I have checked for oral cancer?

Persistent changes deserve evaluation, even when they do not hurt.

Have a mouth sore that lasts more than two weeks, a persistent red or white patch, an unexplained lump, or ongoing numbness evaluated. A neck lump, persistent hoarseness, or difficulty swallowing also warrants medical or dental attention. Many changes are not cancer, but persistent or worsening symptoms should not wait until your next cleaning. An examination can identify concerning findings, but screening cannot rule out every cancer. A biopsy or specialist referral may be needed.

Fillings, fluoride and gum health  ·  3 questions

Questions about fillings, fluoride and deep cleanings.

Whether to replace old silver fillings, how fluoride toothpaste prevents cavities, and when a deep cleaning (scaling and root planing) is really needed.

Should I replace old silver fillings with tooth-colored fillings?

The condition of the tooth and filling matters more than the color.

Not automatically. The FDA does not recommend removing intact amalgam fillings solely to prevent disease. Unnecessary replacement removes additional tooth structure and temporarily increases mercury exposure during removal. Decay, a broken filling, a tooth fracture, or a documented material sensitivity may justify replacement. If a recently replaced filling is uncomfortable, see tooth pain after a filling. Recommendations for placing new amalgam are different: alternatives are encouraged for certain higher-risk groups, including pregnant or nursing patients, young children, and people with impaired kidney function, neurological disease, or allergies to amalgam components. We discuss tooth-colored options when treatment is appropriate.

Does fluoride toothpaste help prevent cavities?

A preventive tool tailored to your age and cavity risk.

Yes. Fluoride toothpaste helps strengthen enamel and repair early mineral loss, reducing the risk of cavities. Brushing twice daily with an age-appropriate amount is a standard preventive recommendation. Patients with dry mouth, frequent decay, or other elevated risks may benefit from additional topical fluoride recommended by a dentist. More is not always better: follow product directions, supervise young children, and avoid swallowing toothpaste. Your prevention plan should reflect your individual needs.

Do I really need a deep cleaning, or scaling and root planing?

Treatment for periodontitis, not a routine upgrade to a cleaning.

Scaling and root planing treats periodontitis, a form of gum disease that damages the tissues and bone supporting teeth. The recommendation should be based on a periodontal examination, including pocket measurements, attachment loss, bleeding, and X-ray findings when needed. Bleeding alone does not establish the need for deep cleaning. Treatment removes bacterial deposits below the gumline and is followed by reassessment and a maintenance plan. Ask us to explain the findings that support your diagnosis.

Pain, anxiety and emergencies  ·  2 questions

Questions about comfort, anxiety and dental emergencies.

How we keep treatment comfortable for anxious patients, and what to do about severe tooth pain or facial swelling, including when to go to the emergency room.

Is dental treatment painful, and what if I’m anxious?

Clear communication and a comfort plan before treatment begins.

Our goal is to keep treatment as comfortable as possible. Local anesthesia controls pain during many procedures, although you may still notice pressure or vibration, and some soreness afterward can be expected. Tell us about anxiety, previous difficulty getting numb, or a difficult dental experience. We can discuss breaks, explain each step, and adjust the approach to your needs. Let us know immediately if you feel pain during treatment.

What should I do about severe tooth pain or facial swelling?

Know when to call the dentist and when to seek emergency care.

Severe tooth pain, new swelling, a knocked-out permanent tooth, or a dental injury needs prompt assessment. For milder discomfort after recent treatment, our guide to tooth pain after a filling explains what is normal, what is not, and when to call. Call our office at 904-398-1549 for guidance rather than relying on text for an urgent problem. Trouble breathing or swallowing, rapidly spreading swelling, or swelling near the eye requires immediate emergency care: call 911 or go to an emergency department. Do not wait for an office reply when these symptoms are present. Dental infections can become serious even if the pain temporarily improves.

Insurance, costs and treatment decisions  ·  3 questions

Questions about dental insurance, costs and treatment plans.

Why insurance doesn’t always cover the recommended treatment, how to compare treatment plans and costs, and when monitoring is the better choice.

Why doesn’t dental insurance always cover the recommended treatment?

Plan benefits and clinical recommendations answer different questions.

Dental coverage depends on your plan’s contract, exclusions, frequency limits, and annual maximums. A treatment may be clinically appropriate even when it is not covered or when the plan pays only toward an alternative. I explain the diagnosis, reasonable options, and expected benefits so you can make an informed decision. Confirm your specific benefits and estimated out-of-pocket responsibility before treatment; coverage should inform the discussion, not replace it. See dental insurance and payment for how out-of-network benefits work.

How should I compare dental treatment plans and costs?

Compare the diagnosis, alternatives, and full scope, not just the fee.

A lower fee does not automatically mean poor care, and a higher fee does not guarantee a better result. Ask which teeth need treatment, why each procedure is recommended, what alternatives exist, and what the estimate includes. For extensive care, discuss maintenance, possible future repairs, and whether treatment can be staged safely. The goal is a plan you understand that fits your clinical needs, priorities, and budget.

Will you ever recommend monitoring instead of treatment?

Yes, when observation or prevention is clinically appropriate.

Yes. A stable finding may be better managed with prevention and scheduled reassessment than with immediate treatment. Monitoring is an active plan: we explain what we are watching, when to review it, and what changes would make treatment necessary. It is not appropriate for every problem, especially an active infection or a suspicious lesion. My goal is the right amount of care, not the most treatment.

Visiting our office  ·  6 questions

Questions about visiting our Jacksonville dental office.

Who we see, how we help nervous patients, insurance, emergencies, and where to find our San Marco office.

Do you see children?

Families welcome from age 2.

Yes. Dr. Henley sees children from age 2, along with teens and adults, so families can come together. Babies under 2 and children who need sedation are referred to a pediatric dentist. Read about our children’s dentistry.
Do you offer sedation for nervous patients?

Laughing gas and minimal oral sedation.

Yes. We offer laughing gas (nitrous oxide) and, for adults, minimal oral sedation, where you stay awake and relaxed. Oral sedation needs a medical review first and a driver to take you home. See sedation dentistry.
Do you offer Invisalign or clear aligners?

Clear aligners for teens and adults.

We offer clear aligners similar to Invisalign for teens and adults, but we are not an Invisalign provider. See clear aligners.
Do you take dental insurance?

Out-of-network with all dental plans.

We are an out-of-network practice and can help you understand how to use your benefits. Call our team with your plan details to ask about fees before scheduling. Read more about dental insurance and payment.
Can I be seen the same day for a dental emergency?

Same-day visits during office hours; call first.

Usually, yes. We see same-day dental emergencies during office hours, including new patients. Please call 904.398.1549 first; we don’t take walk-ins. Existing patients can reach our on-call line after hours. See emergency dental care.
Where is your dental office in Jacksonville?

In San Marco, on Hendricks Avenue.

CJ Henley, DMD, PA is at 3675 Hendricks Avenue, Jacksonville, FL 32207, in San Marco, with plenty of parking. We are open Monday, Tuesday and Thursday 8 AM to 5 PM, Wednesday 8 AM to 4 PM, and Friday 8 AM to noon. See directions and contact details.

Still have a question?

Ask Dr. Henley.

Have a question about your smile, dental implants, or care related to a medical condition? Call CJ Henley, DMD, PA at 904-398-1549 or send a nonurgent text during business hours. Our office is at 3675 Hendricks Avenue, Jacksonville, FL 32207. Let us know about upcoming cancer treatment when scheduling so we can coordinate your evaluation; see the dental exam before radiation.

Patients come to our San Marco office from across Jacksonville, including Mandarin, Southside, Riverside, the Beaches, Ponte Vedra, Orange Park and St. Augustine.

CJ Henley, DMD, PA
3675 Hendricks Avenue
Jacksonville, FL 32207

Prefer a nonurgent text? 904.762.5616 is our practice on-call and text line. Please don’t send sensitive health information by text, and call for anything urgent.

Related pages

About the author. CJ Henley, DMD, is a general dentist in Jacksonville whose practice focuses on cosmetic and restorative dentistry, dental implants, and dental care around head and neck cancer. Meet Dr. Henley.
CJ Henley, DMD, PA  ·  3675 Hendricks Avenue, Jacksonville, FL 32207  ·  904.398.1549
Medically reviewed by CJ Henley, DMD  ·  Updated October 2026

These answers are educational and do not replace an examination.