Taiwan Dentist Licensing Examination common mistakes
Taiwan Dentist Licensing Examination · Understand the traps and how to avoid them.
When interpreting a nerve lesion, the candidate selects the nerve based on the location of the sensory loss alone, without testing motor function or considering the course of the nerve.
The trigeminal nerve's three divisions and the facial nerve are memorized as isolated facts, so the candidate does not systematically link sensory and motor findings to a single nerve.
What to do instead
For every cranial nerve question, write out a quick table of sensory distribution, motor branches, and typical lesion site before choosing an answer; practice with 10 vignettes that require differentiating V2 vs V3 vs facial nerve lesions.
When calculating drug dosages or interpreting pharmacokinetic graphs, the candidate uses the total daily dose instead of the per-administration dose, or confuses half-life with duration of action.
Pharmacology is studied as drug lists rather than as applied math; the candidate does not routinely convert between concentration, volume, and dose.
What to do instead
Before answering any pharmacology calculation, write the formula (dose = concentration × volume) and the units; do 5 practice problems per day that require converting mg/kg to mg and then to mL of a given solution.
When identifying a tooth from a photograph or description, the candidate relies on the general shape (e.g., 'incisor') without checking the number of roots, root curvature, or cervical line curvature that distinguishes maxillary from mandibular teeth.
Dental anatomy is learned by recognizing whole-tooth images, but exam items often give only a single feature or a radiograph; the candidate has not memorized the key discriminating traits for each tooth type.
What to do instead
Create a one-page table for each tooth type listing root number, root curvature, cervical line curvature, and distinctive cusp or groove patterns; test yourself by covering the tooth name and identifying it from each single feature.
When selecting a dental material for a clinical scenario, the candidate chooses based on a single property (e.g., highest compressive strength) and ignores the trade-off with other properties (e.g., wear of the opposing tooth, polymerization shrinkage, or thermal conductivity).
Materials are studied property-by-property without integrated clinical cases; the candidate does not practice matching material properties to specific clinical requirements.
What to do instead
For each major material class (amalgam, composite, glass ionomer, ceramic, metal), write a 3-line summary of its best use, worst use, and the property that limits it; then answer 10 case-based questions that require justifying the choice against at least two alternatives.
When preparing a cavity or access opening, the candidate describes the outline form without stating the required extension for prevention or the need to remove unsupported enamel, and on endodontic items, omits the principle of straight-line access.
Operative and endodontic principles are memorized as lists of steps but not applied to the reason for each step; the candidate does not connect each step to the biological or mechanical goal.
What to do instead
For every operative or endodontic procedure, state the goal (e.g., remove infected dentin, preserve pulp vitality, allow straight-line access) before listing the steps; practice by explaining why each step would be wrong if omitted.
When planning a removable partial denture, the candidate classifies the arch correctly but then designs the framework without considering the effect of the clasp design on torque and on the abutment tooth, or ignores the need for a major connector that does not impinge on the gingiva.
Kennedy classification is learned as a labeling exercise, and the biomechanical consequences of clasp and connector choices are not practiced.
What to do instead
For each Kennedy class, draw the standard design and label the location of the fulcrum line and the rotational path; then answer 5 questions per class that ask for the consequence of changing a clasp type or connector location.
When interpreting periodontal probing depths, the candidate diagnoses periodontitis based on pocket depth alone, without considering clinical attachment loss, bleeding on probing, or radiographic bone loss.
The candidate memorizes diagnostic thresholds as isolated numbers and does not integrate the full periodontal chart.
What to do instead
For every periodontal case, write the diagnosis only after listing probing depth, recession, clinical attachment level, bleeding on probing, and radiographic bone loss; practice with 10 cases where pocket depth and attachment loss give conflicting impressions.
When evaluating an oral mucosal lesion, the candidate jumps to a diagnosis based on the most striking feature (e.g., white patch) without first deciding whether the lesion is potentially malignant and whether biopsy is indicated.
Oral pathology is studied as a list of diseases with classic presentations, and the candidate does not practice the stepwise clinical decision of when to biopsy.
What to do instead
For every oral medicine question, first classify the lesion as potentially malignant or not, then state the indication for biopsy or referral; practice with 10 vignettes where the correct answer is 'biopsy' rather than a specific diagnosis.
When planning orthodontic treatment, the candidate selects an appliance or extraction decision based on the chief complaint alone, without assessing skeletal maturity, growth potential, or the patient's compliance with removable appliances.
Orthodontic treatment planning is learned as a set of appliance choices rather than as a sequence of diagnosis, growth assessment, and biomechanical planning.
What to do instead
For each orthodontic case, write the diagnosis (skeletal and dental), the growth status, the treatment goal, and only then the appliance; practice by comparing two patients with the same chief complaint but different growth status.
When answering public health or ethics questions, the candidate chooses the answer that is clinically best for the individual patient but ignores the legal requirement (e.g., mandatory reporting of infectious disease, informed consent for a minor, or infection control protocol).
Jurisprudence and ethics are studied as isolated rules, and the candidate does not practice applying them to clinical scenarios where the legal and clinical answers differ.
What to do instead
For each ethics or public health question, first identify the legal or regulatory principle at stake, then the clinical principle; practice with 10 scenarios where the legally required action is not the clinically optimal one.