Kuwait Dental Board General Dentistry common mistakes
Kuwait Dental Board General Dentistry · Understand the traps and how to avoid them.
On a local-anesthesia calculation, using “two cartridges is always safe” for a 20-kg child and ignoring the milligram dose and epinephrine ceiling.
The rule is remembered from adult cases; exam stems with pediatric weight, 4% articaine, or cardiac disease expose that the candidate never converted cartridge volume to mg/kg.
What to do instead
Use a written dose table and calculate in three steps: mg in the cartridge, mg/kg maximum for the patient’s weight, and epinephrine limit; check both before choosing a cartridge count.
Choosing a flowable composite as the sole bulk restorative for a large load-bearing Class II molar because it flows into the box and is easy to place.
Candidates associate good adaptation with good restorative material and forget that low filler content means lower wear resistance and higher polymerization shrinkage in stress-bearing areas.
What to do instead
Memorize an indication matrix: flowable for liners or small non-stress areas; universal or packable composite for occlusal stress; use a sectional matrix and respect the material’s labeled incremental or bulk-fill depth.
When a necrotic tooth has a draining sinus tract but no facial swelling or fever, selecting oral antibiotics as the first treatment and delaying root canal access.
The word infection triggers a prescribing reflex; candidates confuse a localized endodontic infection with a systemic infection that needs antibiotics.
What to do instead
Make source control the first answer: access, debride, and drain; reserve antibiotics for systemic involvement, spreading infection, or medically compromised patients, and state that the antibiotic is adjunctive.
Staging a periodontitis patient as mild because the deepest probing depth is 4 mm, while ignoring 35% radiographic bone loss and 3 mm clinical attachment loss.
Probing depth is the most visually memorable number, so candidates grade severity by pocket depth alone instead of CAL, bone loss, and risk factors.
What to do instead
Use a staging worksheet: measure CAL and bone loss, count teeth lost to periodontitis, assess smoking and diabetes, then assign stage and grade; treat pocket depth as one data point, not the diagnosis.
For a mandibular distal-extension RPD, choosing a design with only direct clasps on the abutment teeth next to the edentulous space and no indirect retainer.
The candidate focuses on replacing missing teeth and forgets that a distal extension rotates around the fulcrum line, so the denture base lifts and the abutments are torqued.
What to do instead
Identify the fulcrum line, add indirect retention such as a rest on the most anterior abutment, and consider stress-reducing designs such as RPI or RPA with a properly extended base; explain the biomechanics in the answer.
In an avulsed permanent incisor scenario, selecting “scrub the root, store in tap water, and replant at the next appointment” as the best management.
Lay first-aid myths and fear of infection dominate; candidates forget that periodontal ligament cell viability and extraoral dry time determine prognosis.
What to do instead
Memorize the avulsion sequence: handle by the crown, rinse with saline, replant immediately if possible, otherwise store in milk or HBSS, splint flexibly, and refer; never scrub or use tap water for storage.
For a 9-year-old with a palatally displaced maxillary canine and a retained primary canine, choosing immediate extraction of the primary canine to “create space” without a radiograph to localize the permanent canine.
Interceptive extraction is overgeneralized from crowding cases; candidates skip localization, timing, and resorption risk.
What to do instead
First localize the canine clinically and radiographically, assess root resorption and space, then decide between observation, primary canine extraction, or referral; document the rationale.
In a middle-aged woman with a vital mandibular anterior tooth and a mixed radiolucent-opaque periapical lesion, selecting chronic apical periodontitis and starting endodontic treatment.
The candidate uses the shorthand “periapical radiolucency equals dead tooth” and ignores vitality, internal calcification, and the mixed density typical of periapical cemento-osseous dysplasia.
What to do instead
Apply a four-point check: pulp vitality, lesion density and cortication, size, and location; if the tooth is vital and the lesion is mixed, monitor and avoid unnecessary endodontics; biopsy only if the lesion is expanding or atypical.
Recommending fluoride supplements for a 4-year-old at low caries risk who drinks optimally fluoridated water, because “fluoride prevents caries.”
The candidate remembers the benefit of systemic fluoride but not the risk of fluorosis or the need to assess water fluoride and caries risk.
What to do instead
Use a risk-based fluoride plan: check water fluoride and age, prefer topical varnish or toothpaste for low-risk children, and reserve supplements only when water is deficient and risk is high; document the assessment.
Wearing the same gloves to answer the phone or touch the keyboard and then continuing the dental procedure on the same patient.
Gloves are treated as hand covering rather than a single-use barrier; candidates underestimate fomite transfer and forget the sequence of glove removal and hand hygiene.
What to do instead
Treat gloves as patient-contact-only: remove before touching shared items, perform hand hygiene, and use a new pair for the patient; in exam answers, state the full sequence, not just “wear gloves.”