NBDHE Practice Test 11
10 free NBDHE practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Question 1 of 10
Case Based ItemsPatient Case
| Field | Details |
|---|---|
| Patient | Female, 81 years |
| Chief Complaint | "The bottom teeth that hold my partial have dark spots near the gums, and my upper partial feels loose." |
| Background and/or Patient History | Hypertension: losartan 50 mg daily. Hypothyroidism: levothyroxine 50 mcg daily. Hyperlipidemia: pravastatin 20 mg daily. Osteoarthritis: acetaminophen as needed. Maxillary removable partial denture replacing teeth 2, 3, 4, 13, 14 and 15 (made 9 years ago). Mandibular removable partial denture replacing teeth 18, 19, 30 and 31, with clasps on teeth 20 and 29. Last dental visit 2 years ago. |
| Allergies | |
| Social History | Lives in an assisted-living residence. Former pipe smoker; quit 20 years ago. Wears both partial dentures day and night. Drinks coffee with sugar several times a day. |
| Current Findings | BP 132/78 mm Hg; pulse 74 bpm, regular. Oral hygiene: moderate plaque on the abutment teeth and on both dentures; hard tan deposits on the maxillary denture. |
| Tooth | Facial PD (D-F-M) | Lingual PD (D-L-M) | Recession F / L | BOP | Mobility | Furcation |
|---|---|---|---|---|---|---|
| 5 | 3-2-3 | 3-2-4 | 2 / 1 | D | 0 | — |
| 6 | 3-2-3 | 3-2-3 | 2 / 1 | — | 0 | — |
| 11 | 3-2-3 | 3-2-3 | 2 / 1 | — | 0 | — |
| 12 | 4-2-3 | 3-2-3 | 3 / 1 | D-F | 0 | — |
| 20 | 4-2-3 | 4-2-3 | 3 / 2 | D-F, D | 1 | — |
| 21 | 3-2-3 | 3-2-3 | 2 / 1 | — | 0 | — |
| 28 | 3-2-3 | 3-2-3 | 2 / 1 | — | 0 | — |
| 29 | 3-2-4 | 4-2-3 | 3 / 2 | M-F, D | 1 | — |
| Tooth | Condition |
|---|---|
| 1, 2, 3, 4, 13, 14, 15, 16, 17, 18, 19, 30, 31, 32 | Missing; replaced by removable partial dentures where listed in the history |
| 20 | Distal root surface: soft, cavitated, brown lesion apical to the CEJ |
| 29 | Distal root surface: soft, cavitated, brown lesion apical to the CEJ |
| 5, 12 | Rest seats; facial composites |
| 8, 9 | Porcelain-fused-to-metal crowns |
Radiograph description (periapicals): Tooth 29 — a metallic radiopaque clasp of the mandibular partial denture is superimposed over the cervical and middle thirds of the root, hiding the distal root surface. Tooth 20 — radiolucency on the distal root surface apical to the CEJ, extending into the dentin. Bone crests 2–4 mm apical to the CEJ. Edentulous ridges show no retained root fragments.
Clinical photograph description: Smooth, diffusely red mucosa on the hard palate, limited to the area covered by the maxillary partial denture and ending sharply at the denture border; no white or keratotic areas and no ulceration. Brown-to-black soft lesions on the distal root surfaces of teeth 20 and 29. Tissue surface of the maxillary denture: white and tan deposits.
The palatal finding is most consistent with