Top 10 Things to Tell Your Orthodontist Before Treatment Starts

How we ranked these disclosures

Each item is ranked on three questions. How much can it affect your safety during treatment? How much could it change the treatment plan or the result if the orthodontist did not know? And how easy is it to forget or feel embarrassed to mention? Items that bear on safety and healing rank highest, and items about preference and logistics rank lower but still matter. This is an editorial ranking based on NHS and professional guidance rather than a survey. Your orthodontist will ask many of these questions anyway, so the aim is to be ready with accurate answers rather than relying on memory.

Why honesty matters at the first appointment

Orthodontists plan treatment around your whole mouth and your general health. A condition, medicine or habit that seems unrelated can affect how teeth move, how gums heal, which materials are safe and when treatment should start. Dental professionals are bound by professional standards and data protection law to keep your records confidential and to use them to provide your care. There is no need to feel embarrassed, since clinicians hear about habits, anxiety and lapses in cleaning all the time. Being open at the start prevents delays and avoids problems later. If you are unsure whether something is relevant, mention it and let the clinician decide.

1. Medical conditions

Tell your orthodontist about any current or past medical conditions, including heart conditions, diabetes, epilepsy, asthma, bleeding or clotting disorders, immune conditions, bone conditions, eating disorders, and anything affecting the jaw, joints or breathing. Some conditions affect healing or the risk of infection, and others affect whether treatment should wait until the condition is stable. The orthodontist may ask for your GP's or specialist's advice. Many people with long-term conditions have orthodontic treatment safely with a modified plan. Our condition-specific guides explain common situations. It matters for everyone. Watch out for assuming a condition is irrelevant, for leaving out childhood illnesses or surgery, and for forgetting to mention changes in your health during treatment.

2. Medicines and supplements

Bring a list of everything you take, including prescription medicines, over-the-counter products, vitamins and herbal supplements. Some medicines affect bone and tooth movement, such as long-term bisphosphonates or steroids, some thin the blood and increase bleeding, and some cause a dry mouth that raises the risk of decay and gum problems. Treatments such as acne medicines or immune-suppressing drugs can matter too. Your orthodontist may adjust the plan, liaise with your doctor or suggest waiting. Our guides on medicines and orthodontics explain the common cases. It matters for everyone. Watch out for omitting supplements, for stopping a medicine without advice from your prescriber, and for forgetting to mention a new prescription started during treatment.

3. Allergies

Tell your orthodontist about any allergies, especially latex, which is found in some gloves and elastics, nickel or other metals, certain medicines such as local anaesthetic or antibiotics, and food or skin sensitivities. Many brackets and wires contain nickel, and latex-free and nickel-free alternatives exist. A reaction can range from a sore mouth or rash to something more serious, so it matters to prevent exposure from the start. Describe what happens when you react, since the details help decide what is safe. Our guides on latex and metal allergies explain the options. It matters for everyone with a known or suspected allergy. Watch out for guessing, for not mentioning a reaction to jewellery or watch straps, and for assuming a mild reaction does not count.

4. Pregnancy or planning a pregnancy

If you are pregnant, breastfeeding or planning a pregnancy, say so. Hormonal changes can make gums more sensitive and prone to inflammation, and some tests, such as X-rays, are usually delayed or avoided in pregnancy unless clearly necessary. Many people choose to start or pause treatment around pregnancy, and there is no good evidence that orthodontic appliances harm a baby, but the timing and the cleaning routine may need attention. Your orthodontist can discuss whether to start now, wait or take extra care with gum health. Our guides on pregnancy and breastfeeding give more detail. It matters for anyone of childbearing age who might conceive during treatment. Watch out for skipping X-ray disclosures, for neglecting gum care and for assuming treatment must stop.

5. Dental and gum history

Tell your orthodontist about previous dental treatment such as fillings, crowns, root canal work, extractions, implants or bridges, any history of gum disease or decay, injuries to your teeth, and previous orthodontic treatment, including how long it took and whether you wore retainers. Gum disease, decay and some restorations must be addressed before or alongside tooth movement, and crowns, bridges and implants do not move like natural teeth. Bring recent dental X-rays or details of your dentist so records can be shared with your consent. Our guide on dental work before braces explains the usual order. It matters for everyone. Watch out for forgetting a past injury, for not mentioning sensitivity or bleeding gums, and for starting treatment before outstanding dental problems are dealt with.

6. Habits

Mention habits that affect the teeth and jaws, including thumb or finger sucking, dummy use, nail biting, pen chewing, lip or cheek biting, tongue pushing, teeth grinding or clenching, mouth breathing, smoking or vaping, and sports that risk a knock. Some habits cause or maintain a bite problem, and others can break brackets or reduce the result. Knowing about them lets your orthodontist plan help, such as habit-breaking advice or a protective guard, and makes sure you are not blamed unfairly if appliances break. Our guides on habits and bruxism explain more. It matters for children and adults. Watch out for downplaying habits you think are embarrassing, for not mentioning grinding at night and for forgetting vaping, which can affect gums.

7. Jaw pain, clicking and sleep

Tell your orthodontist about jaw pain, clicking, locking, headaches, earache, difficulty opening wide, or waking with a sore jaw. Also mention snoring, pauses in breathing, tiredness or a history of tonsil or adenoid problems. Jaw joint and muscle issues need to be assessed before starting, because some plans could aggravate them and because pain may be linked to bite or habits. Sleep-related breathing problems can influence the choice of treatment and may need medical review. Our guides on TMJ, bruxism and sleep-related breathing explain the links. It matters for everyone, and especially for adults. Watch out for assuming clicking without pain is unimportant, for not mentioning night-time symptoms and for ignoring a locked jaw.

8. Your cleaning routine and diet

Describe your cleaning routine honestly, including how often you brush, whether you clean between your teeth, what toothpaste you use, how often you have sugary snacks or fizzy drinks, and whether you have a dry mouth. Fixed braces and aligners raise the risk of decay and white marks if cleaning slips, so your orthodontist may decide to start only when your routine is reliable, or may add extra support such as fluoride products and a hygienist. This is not about judgement; it is about preventing damage. Our guides on cleaning braces and preventing cavities help. It matters for everyone. Watch out for exaggerating your routine, for skipping interdental cleaning and for assuming that a quick scrub is enough.

9. Your goals and worries

Explain what bothers you about your smile, what you want to change, what you do not want, and what you are worried about, whether that is the look of braces, pain, time, cost or the thought of extractions. A good orthodontist will explain what is realistic and what is not, and will check that your hopes match what treatment can deliver. Bring photographs of smiles you like, if you have them, and be clear about priorities, such as straightening versus changing the bite. Our guide on realistic expectations explains what orthodontics can and cannot do. It matters for everyone. Watch out for keeping worries to yourself, for unspoken assumptions about finishing dates and for expecting changes in facial shape that cannot be promised.

10. Practical limits and needs

Tell your orthodontist about practical constraints: your budget and how you prefer to pay, travel time, work or study commitments, upcoming events, musical instruments, contact sports, and any additional needs such as autism, ADHD, learning disability, anxiety about dental care or sensory sensitivities. These affect the choice of appliance, the scheduling and the way appointments are run. Many practices can adapt, for example with longer visits or a quieter environment. Our guides on anxiety and additional needs explain adjustments to ask about. It matters for everyone. Watch out for agreeing to a plan you cannot afford or attend, for staying silent about anxiety, and for not asking for reasonable adjustments.

How to prepare before you go

Write a short list before the appointment. Include your medical conditions, medicines and supplements, allergies, previous dental and orthodontic treatment, habits, symptoms, your goals and worries, and your budget and availability. Bring recent X-rays or your dentist's details, and a parent or guardian if you are under 18. Take a list of questions, such as how long treatment will take, what it will cost in total, and what happens afterwards. Our guides on the first orthodontist appointment and questions to ask an orthodontist give fuller lists. You can also update the practice by phone or message later if you remember something after the visit.

What happens to the information you share

Your clinician records what you share in your dental notes and uses it to plan and deliver care. Dental professionals are expected to keep records confidential, to share them only where appropriate and with your consent unless the law requires otherwise, and to hold them securely under data protection law. You can ask the practice how long records are kept and how to see them. Our guides on records and consent explain your rights. If you are under 18, parents or guardians usually give consent, and the clinician will involve the young person in decisions as appropriate.

A one-page checklist to bring

A short written list makes the appointment smoother. Include any medical conditions and the name of your GP, a list of medicines and supplements with doses if you know them, allergies and the reactions you had, whether you are pregnant or planning to be, the name of your dentist and the date of your last check-up, previous dental or orthodontic treatment, habits and symptoms such as jaw pain or snoring, what you want from treatment and what worries you, your budget and your availability for appointments. Add questions you want answered. Handing the list to the clinician keeps the conversation focused and reduces the chance that something important is forgotten.

Information for parents of younger patients

If you are bringing a child, tell the orthodontist about the child's medical history, medicines, allergies, previous injuries to the teeth, the age at which baby teeth were lost, thumb or dummy habits, mouth breathing, snoring, teeth grinding, anxiety about dental visits and any additional needs. Mention family history of crowding, missing teeth or jaw problems, because some bite patterns run in families. Involve your child in the conversation so that their own worries are heard, and ask the clinician to explain what will happen at each visit. Children cooperate better when they know what to expect, and a plan that suits them is more likely to succeed.

What the orthodontist may do with this information

After listening, the orthodontist will usually examine your teeth, gums and bite, may take photographs, digital scans or X-rays, and will explain whether treatment is suitable, what options exist, how long it is expected to take, what it will cost and what the risks are. If something you have said raises a question, such as a medicine or a condition, they may ask to speak to your doctor or dentist, or suggest that dental problems are treated first. This is not a delay for its own sake; it protects your health and the result. Ask for the plan, the costs and the risks in writing, and take time to decide.

Telling your orthodontist when things change

Disclosure does not end at the first appointment. Let your orthodontist know if you start a new medicine, become pregnant, develop a new health condition, have dental treatment elsewhere, injure your mouth, notice new jaw pain, or find that you cannot keep up with cleaning, wearing elastics or aligners, or attending appointments. Small changes can affect how teeth move and how the gums cope, and early information allows the plan to be adjusted rather than rescued. If you move away or change dentist, ask for your records so that treatment can be continued safely. A short phone call or message is usually all that is needed.

Key takeaways

Tell your orthodontist about medical conditions, medicines, allergies, pregnancy, dental and gum history, habits, jaw and sleep symptoms, your cleaning routine, your goals and your practical limits. Be honest, bring a list, and speak up if anything changes during treatment. This is general information, not personal medical advice, so ask your own orthodontist what applies to you.

Useful related pages

This guide is for general information only. It is not a diagnosis, treatment plan, or substitute for advice from a registered dentist or orthodontist.