NBDHE Practice Test 6
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, 66 years |
| Chief Complaint | "I want to keep my implants healthy. The gum around the lower left one bleeds when I floss." |
| Background and/or Patient History | Hypothyroidism: levothyroxine 75 mcg daily. Osteoarthritis of the knee: ibuprofen as needed. Periodontitis treated 8 years ago. Implants replacing teeth 19 (placed 6 years ago) and 30 (placed 5 years ago), both with screw-retained crowns. Maintenance every 3 months, but she missed her last 2 visits (9 months since the last visit). |
| Allergies | |
| Social History | Former smoker; quit 10 years ago. Retired school librarian. |
| Current Findings | BP 118/76 mm Hg; pulse 72 bpm. Oral hygiene: light plaque on natural teeth; moderate plaque on the implant crowns; hard deposit on the lingual of the implant 30 abutment. |
| Tooth | Facial PD (D-F-M) | Lingual PD (D-L-M) | Recession F / L | BOP | Mobility | Furcation |
|---|---|---|---|---|---|---|
| 18 | 3-2-3 | 3-2-3 | 1 / 0 | — | 0 | — |
| Implant 19 | 4-3-4 | 4-3-4 | 0 / 0 | D-F-M, D-L-M | None | — |
| 20 | 3-2-3 | 3-2-3 | 1 / 1 | — | 0 | — |
| 29 | 3-2-3 | 3-2-3 | 1 / 0 | — | 0 | — |
| Implant 30 | 5-4-7 | 6-4-7 | 0 / 0 | D-F-M, D-L-M (pus at M-L) | None | — |
| 31 | 3-2-3 | 3-3-3 | 1 / 1 | M | 0 | — |
| Tooth | Condition |
|---|---|
| 1, 16, 17, 32 | Missing |
| 19, 30 | Implants with screw-retained porcelain crowns |
| 3, 14 | Full metal crowns |
Radiograph description (periapicals): Implant 19 — crestal bone at the first thread on the mesial and distal, 1 mm apical to the implant platform; unchanged from the image taken at crown delivery. Implant 30 — crestal bone 4 mm apical to the platform on the mesial and 3 mm on the distal, with a saucer-shaped radiolucency around the coronal threads; the image at crown delivery showed bone 1 mm apical to the platform. Natural teeth — bone crests 2–3 mm apical to the CEJ.
Clinical photograph description: Implant 19 — red, edematous facial mucosa that bleeds on light probing. Implant 30 — red, swollen mucosa with a small amount of purulent exudate at the mesiolingual; a tan, hard deposit on the lingual of the abutment. Natural teeth — pink, firm gingiva.
Which factor in the history most increases her risk of peri-implantitis?