General Medicine for BDS
Overview
General Medicine in the BDS course teaches you to see the patient behind the tooth. Most dental patients are not healthy volunteers: many carry diabetes, hypertension, heart disease, anaemia or an infection that changes how they should be examined and treated. This page outlines the high-yield topics, a practical way to study them and a revision plan.
The subject is usually examined through short notes, viva questions and clinical scenarios. It rewards clear, structured answers more than long textbook recall.
Why this subject matters
A dentist who misses a medical condition can cause harm with a simple extraction, an injection or a prescription. Uncontrolled diabetes delays healing, anticoagulants cause prolonged bleeding, and a cardiac patient can collapse in the chair.
General Medicine also builds the habit of taking a proper history and recognising when to refer. These skills carry into oral medicine, oral surgery, pharmacology and every clinical department you will rotate through.
High-yield topics
Endocrine and metabolic
- Diabetes mellitus: diagnostic criteria, HbA1c, complications, and hypoglycaemia and ketoacidosis in the dental chair.
- Thyroid disorders and adrenal insufficiency, including the risk in patients on long-term steroids.
- Osteoporosis and its relevance to jaw health.
Cardiovascular and respiratory
- Hypertension, ischaemic heart disease and heart failure, with precautions for local anaesthesia and vasoconstrictors.
- Cardiac rhythm disturbances and infective endocarditis prophylaxis.
- Asthma and COPD, including inhaler use and avoiding triggers.
Blood and bleeding
- Anaemias and leukaemias, and their oral signs.
- Haemophilia and other bleeding disorders.
- Patients on anticoagulants and the planning of extractions.
Infections
- Hepatitis B and C, HIV and tuberculosis, with cross-infection control.
- Needlestick injury management and vaccination of dental staff.
- Immunocompromised patients and their infection risk.
Neurology, psychiatry and renal or hepatic disease
- Epilepsy and seizure management, stroke, Parkinson's disease and dementia.
- Psychiatric conditions, alcohol and substance use in the dental patient.
- Renal and liver disease, including drug dosing and bleeding tendency.
Emergencies and general principles
- Syncope, anaphylaxis and basic life support.
- Vital signs measurement and interpretation in the clinic.
- Antibiotic allergy, latex allergy and anaesthesia considerations.
- Referral guidelines: when to treat and when to send the patient on.
How to study this subject
- Start with the vital signs and basic history-taking, since every other topic builds on them.
- Study each condition in a fixed order: definition, causes, clinical features, investigations, treatment, and then the dental implications.
- Always end a topic by asking what you would change in the dental clinic for such a patient.
- Learn emergencies as step-by-step sequences you can recite aloud, because viva examiners ask for the order of actions.
- Link each disease to the drugs involved, such as steroids, anticoagulants and antihypertensives, and their effect on dental treatment.
- Practise writing short notes within time limits, using headings and bullets.
Revision strategy
Make a one-page summary for each system after you finish it, with key values, drugs and dental precautions. Revise from these summaries instead of rereading full chapters.
Keep a separate sheet for emergencies and normal values, and revise it every week. Practise viva-style questions aloud with a friend, since explaining a condition in your own words shows quickly what you have not understood. Return to high-frequency topics such as diabetes, hypertension, bleeding disorders and infections more often than rare diseases.
Preparation with PrepElephant
PrepElephant offers free topic pages for BDS General Medicine, each written as a direct, exam-ready answer with the dental implications spelled out. The app adds question practice and revision tools so you can test yourself after each topic and revisit weak areas. Clinical skills still need to be learned in your college clinics and wards.
Recently updated General Medicine notes
- Adrenal Insufficiency in Dental Practice Adrenal insufficiency for BDS General Medicine: mucosal pigmentation, steroid cover rules, adrenal crisis recognition and hydrocortisone 100 mg emergency.
- Anaesthesia Considerations in Dentistry Dental anaesthesia for BDS General Medicine: maximum lidocaine and articaine doses, cartridge arithmetic, epinephrine limits, toxicity and allergy.
- Anaphylaxis in the Dental Clinic Anaphylaxis for BDS Medicine and Dental clinics: adrenaline 0.5 mg IM thigh, repeat every 5 minutes, biphasic reactions and common dental triggers.
- Antibiotic Allergy in Dental Practice Antibiotic allergy for BDS Medicine and Dental clinics: true IgE history taking, cephalosporin cross-reactivity, AHA 2021 alternatives and label harms.
- Basic Life Support in the Dental Clinic Basic life support for BDS Medicine and Dental clinics: 30:2 compressions at 100-120/min, 5-6 cm depth, call 108, AED use and the choking algorithm.
- Diabetes Emergencies in the Dental Chair Dental diabetes emergencies for BDS Medicine: hypoglycaemia below 70 mg/dL, the rule of 15, glucagon 1 mg, DKA signs and HbA1c deferral thresholds.
All General Medicine topics for BDS 39
A
T
- The Alcohol-Using Dental Patient
- The Anaemic Dental Patient
- The Anticoagulated Dental Patient
- The Asthma Patient in Dental Practice
- The Cardiac Patient in Dental Practice
- The Cardiac Rhythm Patient in Dental Practice
- The COPD Patient in Dental Practice
- The Dementia Patient in Dental Practice
- The Epilepsy Patient in Dental Practice
- The Haemophilia Patient in Dental Practice
- The Heart Failure Patient in Dental Practice
- The Hepatitis Patient in Dental Practice
- The HIV-Positive Dental Patient
- The Hypertensive Dental Patient
- The Immunocompromised Dental Patient
- The Leukaemia Patient in Dental Practice
- The Liver Disease Patient in Dental Practice
- The Parkinson Disease Patient in Dental Practice
- The Psychiatric Patient in Dental Practice
- The Renal Disease Patient in Dental Practice
- The Stroke Patient in Dental Practice
- The Substance Use Patient in Dental Practice
- The Thyroid Patient in Dental Practice
- The Tuberculosis Patient in Dental Practice
Frequently asked questions
Why do BDS students study General Medicine?
Dental patients often have systemic conditions that affect treatment and safety. General Medicine teaches you to identify these conditions, take precautions and refer when needed.
Which topics are most important in BDS General Medicine?
Diabetes, hypertension, cardiac disease, bleeding disorders, infections and medical emergencies are the areas that recur most in examinations and clinical practice. Anaemia, epilepsy and asthma are also commonly asked.
How should I answer clinical scenario questions?
Identify the condition, state the key risk for dental treatment, and then give the precautions or management in a clear order. Mention when you would refer or postpone treatment.
Do I need to memorise drug doses for this subject?
Focus first on drug classes, their effects and their dental implications. Learn the doses of emergency drugs only as far as your university syllabus and teachers expect.
How can I prepare for the viva?
Practise explaining each condition aloud in three parts: what it is, how it presents and what changes in dental care. Revise emergency sequences until you can recite them without hesitation.
Practise this in the PrepElephant app
Question banks, previous-year questions, mock tests and revision tools — for General Medicine for BDS. Free to start.