Diagnosis, Outcome and Treatment Planning

A 28-year-old has sharp cold pain on #36 that lingers >30 seconds after stimulus removal; percussion is WNL; radiograph shows no periapical changes.

A 43-year-old reports spontaneous, throbbing pain on #11; heat aggravates, cold relieves; EPT positive; percussion mildly tender.

A 60-year-old tooth #46 has no response to cold or EPT; percussion and palpation are non-tender; radiograph normal.

A draining sinus tract adjacent to #25 is traced with gutta-percha to the apex on radiograph.

Tooth #36 painful on biting and percussion; cold test negative; PA radiolucency at apex of mesial root.

A 22-year-old has brief, non-lingering cold pain on #14; no spontaneous pain; normal percussion.

Radiograph shows a well-defined periapical radiolucency at #12; tooth tests non-vital; asymptomatic.

Best initial test to localize a suspected cracked cusp producing biting pain on #46?

Which factor most strongly improves endodontic outcome across studies?

Optimal obturation length relative to radiographic apex for highest success?

Indication where limited FOV CBCT most impacts diagnosis?

A 35-year-old has pain to percussion on #16; cold produces severe lingering pain; palpation WNL; no swelling.

A maxillary premolar has vague pain poorly localized, referred to upper jaw; cold localizes to #15 with lingering pain.

A mandibular molar shows radiopaque periapical area with widened PDL; tooth is vital and asymptomatic.

Sinus tract originates mid-root on probing and traces laterally on gutta-percha rather than apex.

Which history detail most alters endodontic treatment planning?

Tooth #21: deep caries approximating pulp; brief cold pain; asymptomatic apically; restorability good.

A non-vital #36 with large periapical radiolucency; good periodontal support; crack excluded; patient accepts treatment.

Best method to identify the source of an endodontic sinus tract?

Tooth with deep MOD composite, lingering cold pain, normal probing; crack suspected. Best adjunct?

Patient with dull facial pain unrelated to biting; multiple teeth “hurt”; all teeth normal to cold, percussion, palpation; no radiographic findings.

Which pulpal diagnosis fits: no signs/symptoms; normal responses to tests?

A previously root-treated #26 shows inadequate obturation with voids and short fill; asymptomatic; PA radiolucency present.

Electric pulp test shows high threshold on #45 compared to contralateral, but positive; cold yields lingering pain.

On treatment planning, which MOST compromises prognosis?

A 17-year-old with immature #11, deep caries, vital pulp, lingering cold pain confined to coronal third.

Tooth #36 has isolated narrow probing defect to apex on one surface; J-shaped radiolucency; persistent symptoms.

A patient with SIP declines RCT; you discuss risks/benefits and document consent. This step is critical for what?

Radiograph shows calcified chamber on #24; cold response normal; no symptoms; plan?

Which periapical diagnosis fits: pain to percussion, no swelling, normal palpation, radiograph may be normal early?

A 50-year-old with chronic sinusitis-like pain; #16 tests normal; palpation over sinus tender; teeth negative to percussion.

Which factor REDUCES endodontic success probability?

Best single clinical test for pulp sensibility among options?

Tooth #26 with lingering cold pain, normal apices; patient asks about success if RCT done promptly and crown placed.

You suspect invasive cervical resorption on #21; 2D images inconclusive.

A 40-year-old with bruxism has generalized percussion tenderness; all pulps respond normally and symptoms diffuse.

Tooth #37 with SIP; patient cannot afford crown; large missing walls.

A necrotic #12 with sinus tract; patient asymptomatic; wishes to delay treatment months.

Which radiographic sign supports endodontic origin of a lesion?

Chief complaint: “Pain on release after biting” on #46; cold normal; cusp marginal crack seen; probing normal.

A 32-year-old has lingering cold pain on #26; percussion tender; palpation normal; radiograph WNL.

A 54-year-old molar #36 has no response to cold/EPT; percussion/palpation WNL; small widened PDL.

Best single predictor of long-term endodontic success after RCT?

Which pulp test is most specific for a necrotic pulp?

A tooth with SIP but uncracked cusp and adequate ferrule; patient asks about success.

A sinus tract traced to apex of #12; pus expressed; mild pain.

Radiograph shows radiopaque periapical area around vital #46 with caries history; asymptomatic.

Localizing odontogenic pain when patient reports referred upper jaw pain?

In treatment planning, which factor most threatens restorability?

A tooth tests normal to cold but has percussion tenderness; radiograph normal.

Best imaging for suspected vertical root fracture in previously treated tooth?

A 19-year-old with deep caries on immature #21; lingering cold; restorable.

A previously treated #14 with short obturation and apical radiolucency; asymptomatic.

Patient with generalized percussion tenderness; normal pulp tests; heavy wear facets.

Which obturation length is associated with best healing?

A tooth with SIP requires anesthesia; best initial local for mandibular molar?

Prognosis factor most associated with reduced outcome in necrotic cases?

Which step is essential before deciding on RCT vs extraction?

A cracked tooth suspected; which clinical sign increases suspicion?

A molar with necrotic pulp and sinus tract; patient asymptomatic and requests delay.

Tooth with deep composite; normal cold; mild percussion pain after recent restoration.

Most reliable method to identify source of draining sinus?

Which case benefits most from CBCT at diagnosis?

Patient reports pain spontaneous at night, relieved by cold water; percussion tender.

Tooth non-responsive to EPT but responds to cold; interpretation?

Key reason to avoid starting RCT on tooth deemed unrestorable?

A tooth with SIP has temporary relief from NSAIDs but persistent symptoms; next diagnostic step?

Endodontic outcome is most negatively affected by which coronal factor?

A 40-year-old reports cold-sensitive #24, pain does not linger; normal percussion; radiograph WNL.

Tooth with necrosis and large apical lesion; crack excluded; patient diabetic with poor control.

Which periapical diagnosis: severe pain, swelling, fever; percussion/palpation very tender; cold negative?

When is “previously initiated therapy” the correct pulpal diagnosis?

Which finding best supports endodontic origin vs periodontal origin?

A maxillary molar with suspected MB2; outcome benefit of locating MB2?

Patient has severe cold sensitivity post-bleaching; teeth vital, no caries.

Tooth #46 with radiolucency and sinus tract; crown with open margin.

Which patient factor most predicts difficult anesthesia in SIP?

In outcome assessment, which radiographic change indicates healing?

A symptomatic tooth with deep caries and short remaining walls; patient refuses crown.

Tooth with normal pulp tests but pain when flossing interdental area; food impaction present.

A 29-year-old with lingering cold pain on #36; deep caries; tooth restorable with expected 2-mm ferrule after crown lengthening.

A 58-year-old diabetic (poor control) with necrotic #11 and PA radiolucency asks about prognosis.

Tooth #26 has lingering cold pain; percussion tender; no swelling; patient asks for antibiotics.

Which test best differentiates reversible from irreversible pulpitis?

Tooth with necrosis and draining sinus tract; patient asymptomatic; optimal initial management?

A 35-year-old has non-lingering cold pain to exposed dentin; normal percussion/palpation.

Best indicator of endodontic origin of a swelling?

Which radiographic feature favors external cervical resorption over internal resorption?

Outcome factor most predictive of failure after RCT?

A 46 shows large PA lesion; tooth restorable; patient asks healing timeline post-RCT.

Best approach to localize a tooth in referred pain to ear region?

A tooth with normal pulp tests but severe biting pain and cusp deflection on transillumination.

When does apical surgery outrank nonsurgical retreatment?

A previously initiated #15 (access only) now asymptomatic; vitality inconclusive; PA normal.

Key predictor of outcome in vital cases with SIP?

Tooth #12 with internal resorption; vital pulp; radiograph shows ballooning canal; restorable.

Occlusal reduction in mandibular molar with SIP is recommended primarily to:

A 40-year-old with sinus tract traces to lateral mid-root; probing narrow and deep at same site.

Which factor most improves prognosis in teeth with preop apical periodontitis?

Vital tooth with deep caries, lingering cold, open apex (Cvek stage 3–4), restorable.

A necrotic #36 with symptomatic swelling and trismus; airway stable; temp 38.3°C.

Preoperative pain’s effect on outcome?

Tooth with necrosis and large cyst-like lesion; patient asks if size alone mandates surgery.

Which sign favors internal over external resorption?

A 27-year-old with reversible pulpitis on #46 but high occlusion after new filling.

You suspect combined endo-perio lesion primarily of endodontic origin. Key initial step?

Which outcome measure indicates success on follow-up?

A 62-year-old with SIP on #24; severe anxiety; requests IV sedation only.

Tooth with necrosis; patient smokes heavily; asks effect on healing.

A symptomatic tooth has lingering cold pain and deep caries under a crown; crown margins open; tooth restorable.

Which condition contraindicates RCT from a prognostic standpoint?

For outcome assessment, recommended recall time after RCT?

Tooth exhibits pink spot in cervical area; tests vital; radiographs show irregular cervical radiolucency.

In SIP mandibular molar, most effective supplemental anesthesia after IANB?

Patient refuses crown after RCT on cracked cusp molar; prognosis?

A necrotic premolar with good root filling but persistent lesion; post blocks retreatment.

Best predictor of locating MB2 in maxillary first molars?

What does a normal EPT response guarantee?

Radiograph shows short obturation (>3 mm from apex); patient asymptomatic; no lesion.

A tooth with SIP scheduled for RCT; patient insists on delaying weeks due to travel.

A 41-year-old reports pain that starts with hot drinks and is relieved by sipping cold water; percussion mildly tender.

EPT yields no response on a tooth with a full-coverage metal crown; cold test is positive with normal response.

All sensibility tests are inconclusive for suspected necrosis; patient asymptomatic; radiograph equivocal. Best next step?

Diffuse mandibular molar pain cannot be localized; which maneuver best localizes the culprit?

Tooth tests normal to cold but is tender to percussion after recent high restoration; radiograph WNL.

Maxillary posterior “toothache” worsens on bending forward; teeth test normal; mucosa over sinus tender.

A deep isolated narrow probing defect on the midroot of #46, J-shaped radiolucency, normal cold response.

Burning facial pain with allodynia persists after normal dental tests and prior RCTs; no radiographic lesions.

Which pulpal diagnosis applies: access made, canals not completed/obturated?

A cervical radiolucency appears eccentric and shifts relative to the canal on different angulations.

Deep caries, normal cold response, no symptoms, restorable tooth. Best plan?

Which factor most strongly reduces prognosis in molar RCT planning?

Tooth #12: lingering cold pain, percussion normal, radiograph normal.

A necrotic #11 has a draining sinus; patient afebrile, no swelling. Best initial management?

Radiograph shows periapical radiolucency centered on apex with loss of lamina dura; tooth nonvital.

Which single outcome factor MOST improves success after RCT?

A patient with suspected cracked tooth declines crown; tooth has reversible pulpitis. Plan?

Best test to reproduce pain from a suspected cracked cusp?

Heat test elicits severe lingering pain; cold provides temporary relief; percussion normal.

Which patient factor warrants guarded prognosis discussion preoperatively?

A 17-year-old with immature #21 and carious exposure; vital bleeding pulp; restorable.

A tooth with necrosis and PA lesion but excellent ferrule and crown planned. Prognosis?

Normal cold/EPT; severe pain on chewing hard seeds; no PA changes.

You suspect combined endo-perio lesion of endodontic origin. First step?

Which finding favors internal resorption?

Patient with severe SIP asks for “just painkillers.” Best response?

Which radiographic technique helps differentiate external vs internal lesions?

Tooth with persistent PA lesion after well-done RCT; post blocks retreatment; patient wants tooth preserved.

Which scenario justifies CBCT at diagnosis?

Which apical diagnosis: painful on biting/percussion; no swelling; radiograph may be normal early?

A crowned molar with extensive recurrent caries subcrestally; lingering cold pain; minimal ferrule possible.

A tooth with reversible pulpitis after new filling; patient insists on RCT to “stop pain forever.”

A draining sinus tract traced to apex on #24; tooth nonvital; patient asks timeline for sinus resolution after RCT.

Which outcome marker at 12 months indicates healing?

Patient with SIP asks whether pulpotomy could be definitive.

A molar with necrosis and large lesion; patient medically compromised but controlled; desires tooth retention.

Pain overlaps between adjacent teeth; cold test localizes to #15 with lingering pain; #14 normal.

Which periapical diagnosis: asymptomatic tooth with radiolucency and nonvital pulp?

A previously treated tooth is asymptomatic with good fill and coronal seal; small persistent lesion unchanged at 12 months.

A patient with SIP is flying tomorrow; requests temporary measure.

A 34-year-old #21 shows yellow discoloration after trauma; asymptomatic; no PA lesion; no response to cold/EPT.

An immature necrotic #11 with open apex after trauma; restorable; patient healthy.

Persistent symptoms after RCT; obturation length/density acceptable; crown sealed; missed anatomy suspected.

A patient with a prosthetic heart valve needs endodontic treatment likely to cause bleeding.

Suspected external cervical resorption on #12; 2D films inconclusive; treatment planning required.

Combined endo–perio lesion primarily of periodontal origin.

EPT shows generalized “positive” responses on multiple adjacent teeth with large metal restorations; cold localizes #26.

Which preoperative status is associated with higher long-term success after RCT?

Vertical root fracture confirmed on #46 (isolation, staining, CBCT signs); tooth is unrestorable.

Pregnant patient (2nd trimester) with SIP on #26; severe pain.

Diffuse jaw pain; all teeth normal to dental tests; masseter palpation reproduces pain.

Asymptomatic tooth after apical surgery shows small, stable radiolucency at 12 months; function normal.

Molar planned for RCT has Grade III furcation involvement and mobility III; patient wants to “save it.”

Suspicion of vertical crown-root fracture under deep distal box; probing narrow/deep; crack stains apically.

Lingual sinus tract traced to apex of distal root on #47; tooth is nonvital; minimal pain.

Debating one vs two visits in a vital case with no lesion.

SIP in mandibular molar; anesthetic success a concern.

After access in a painful tooth, patient requests to “leave it open for drainage.”

Post-op radiograph shows small sealer puff beyond apex; patient asymptomatic.

A 55-year-old with necrotic #16, large lesion, good restorability; patient asks about success factors.