Guides dental prescribing with local anesthetic selection, antibiotic prophylaxis, and pain management. Use when prescribing dental medications, selecting local anesthetics, or managing dental pain.
Guides dental prescribing with evidence-based local anesthetic selection, antibiotic stewardship, analgesic protocols, and drug interaction management for safe dental therapeutics.
Why This Skill Exists
Dentists write approximately 10% of all outpatient antibiotic prescriptions in the United States, and dental prescriptions are a documented contributor to antibiotic resistance and opioid misuse. Inappropriate antibiotic prescribing for conditions that require drainage (not drugs), excessive opioid prescriptions for extractions manageable with NSAIDs, and failure to screen for drug interactions with local anesthetic vasoconstrictors represent persistent quality gaps.
Local anesthetic failure is the most common reason patients report negative dental experiences, yet selecting the right agent, concentration, and vasoconstrictor for each clinical scenario is often done by habit rather than pharmacologic reasoning. This skill provides structured protocols for local anesthesia, antibiotic prescribing, pain management, and drug interaction screening.
Checkpoint A: Pre-Prescribing Intake (Mandatory)
What procedure is planned, and what level of anesthesia and post-operative pain is expected?
相關技能
What is the patient's complete medication list, including OTC and herbal supplements?
Does the patient have documented drug allergies, with specific reaction type (true allergy, adverse reaction, intolerance)?
What is the patient's relevant medical history (cardiac, hepatic, renal, adrenal, psychiatric)?
Is the patient pregnant or breastfeeding?
What is the patient's weight (for pediatric dosing or maximum dose calculations)?
Has the patient had adverse reactions to local anesthetics or sedatives previously?
Is there a substance use history relevant to prescribing (opioid use disorder, benzodiazepine dependence)?
Documents to Request
Current medication list verified against pharmacy database
Medical history with allergy documentation (reaction type, severity, date)
Most recent hepatic and renal function tests (if impaired function suspected)
Previous dental records documenting anesthetic history and adverse events
Prescription Drug Monitoring Program (PDMP) report (required by law in most states before prescribing controlled substances)
Patient weight documentation (required for all pediatric patients and weight-based dosing)
Step 1: Local Anesthetic Selection
Available Dental Local Anesthetics
Agent
Concentration
Vasoconstrictor
Onset
Duration (Pulpal)
Duration (Soft Tissue)
Max Dose (Healthy Adult)
Lidocaine
2%
Epinephrine 1:100,000
2–3 min
60 min
3–5 hr
7.0 mg/kg (500 mg abs max)
Articaine
4%
Epinephrine 1:100,000
1–2 min
60–75 min
3–6 hr
7.0 mg/kg (500 mg abs max)
Articaine
4%
Epinephrine 1:200,000
1–2 min
45–60 min
2–5 hr
7.0 mg/kg
Mepivacaine
3%
None
1.5–2 min
20–40 min (infiltration)
2–3 hr
6.6 mg/kg (400 mg abs max)
Mepivacaine
2%
Levonordefrin 1:20,000
1.5–2 min
60 min
3–5 hr
6.6 mg/kg
Bupivacaine
0.5%
Epinephrine 1:200,000
6–10 min
90–180 min
4–9 hr
1.3 mg/kg (90 mg abs max)
Prilocaine
4%
Epinephrine 1:200,000
2–4 min
60–90 min
3–8 hr
8.0 mg/kg (600 mg abs max)
Selection Algorithm
Default choice: Lidocaine 2% with epinephrine 1:100,000 — well-studied, reliable, FDA pregnancy category B
When faster onset or mandibular buccal infiltration is needed: Articaine 4% (superior bone penetration due to thiophene ring)
When vasoconstrictor must be avoided or minimized: Mepivacaine 3% plain (short procedures) or prilocaine 4% plain
When prolonged post-operative analgesia is desired: Bupivacaine 0.5% with epinephrine (surgical extractions, post-op pain control)
Pediatric patients: Calculate maximum dose by weight BEFORE beginning; use shortest-acting agent sufficient for the procedure
Vasoconstrictor Precautions
Condition
Epinephrine Guidance
Controlled hypertension (BP < 160/100)
Standard epinephrine doses acceptable; aspirate carefully
Uncontrolled hypertension (BP > 180/110)
Defer elective treatment; if emergent, limit to 2 cartridges of 1:100,000
Unstable angina or recent MI (< 6 months)
Avoid elective treatment; emergent: use minimal epinephrine with cardiac monitoring
Hyperthyroidism (uncontrolled)
Limit epinephrine; thyrotoxic patients have exaggerated catecholamine response
The ibuprofen + acetaminophen combination is more effective than any opioid combination for dental pain — prescribe it as default first-line
Never prescribe antibiotics as a substitute for definitive dental treatment (I&D, pulpectomy, extraction)
Articaine should not be used for inferior alveolar nerve blocks in pediatric patients due to higher reported paresthesia rates — use lidocaine for IAN blocks
Verify that "penicillin allergy" is a true IgE-mediated allergy before defaulting to clindamycin — most reported penicillin allergies are not true allergies upon investigation
Calculate and document the maximum anesthetic dose for every patient before beginning multi-quadrant treatment
Metronidazole requires explicit alcohol avoidance counseling — document the warning in the chart
Check the state PDMP before every controlled substance prescription — this is a legal requirement in the majority of US states
Stay current with ADA antibiotic stewardship guidelines and CDC opioid prescribing recommendations; prescribing patterns are increasingly audited by dental boards