Free DABOI/ID Practice Questions

Question 1

A restored implant had stable bone levels and 3-mm probing depths at both its one-year and two-year reviews. At year four, the same mesial site probes 5 mm and bleeds repeatedly on gentle probing. A standardized radiograph confirms 2 mm of additional crestal bone loss since the two-year image. The fixture is immobile. Which diagnosis accounts for the change despite the current probing depth being less than 6 mm?

Accepted Answer

Peri-implantitis, because inflammation accompanies increased probing and documented bone loss

Answer

Peri-implant mucositis, because probing has not reached the 6-mm diagnostic threshold

Answer

Physiologic remodeling, because the additional bone loss remains below 3 mm

Answer

Peri-implant health on reduced support, because the fixture remains clinically immobile

Question 2

Removing the labial flange from a maxillary denture trial base causes marked loss of upper-lip support, although incisor position, speech, and vertical dimension remain acceptable. The completely edentulous patient has substantial anterior ridge resorption. A fixed design providing the same lip support would require a bulky facial extension that the patient cannot clean beneath. The patient is willing and able to remove a prosthesis daily. Which definitive design best reconciles these findings?

Accepted Answer

An implant-retained overdenture with a labial flange

Answer

A fixed full-arch prosthesis with an enlarged facial gingival extension

Answer

A fixed full-arch prosthesis with the incisors moved facially for lip support

Answer

A fixed full-arch prosthesis with longer crowns replacing the flange volume

Question 3

During a six-implant maxillary framework try-in, tightening only the left terminal screw produces a visible gap at the right terminal interface. Tightening all screws closes the gap. The abutments are fully seated, and neither soft-tissue entrapment nor proximal interference is present. What is the appropriate response to these apparently conflicting fit assessments?

Accepted Answer

Correct the framework or positional record, then repeat verification of passive fit

Answer

Accept the framework because all interfaces close at the prescribed torque

Answer

Use center-out tightening to distribute the gap across all six interfaces

Answer

Deliver the framework and retorque after settling has reduced the initial interface discrepancy

Question 4

Before a single posterior implant is planned, a 69-year-old patient reports four years of weekly oral alendronate for osteoporosis. There is no cancer history, corticosteroid use, active periodontal infection, or exposed bone. A fasting serum CTX result is 220 pg/mL. How should this result affect the assessment of medication-related osteonecrosis risk?

Accepted Answer

Do not use CTX to clear the patient; assess medication exposure and clinical risk factors

Answer

Use the result as evidence of low surgical risk because it exceeds 150 pg/mL

Answer

Require a three-month drug holiday and a repeat CTX before determining candidacy

Answer

Exclude implant treatment because four years of oral bisphosphonate use is a contraindication

Question 5

CBCT measurements along a planned posterior mandibular implant axis show 11.5 mm from the existing crest to the superior border of the inferior alveolar canal. The restorative plan places the implant platform 1.0 mm below that crest. The selected drill extends 1.0 mm beyond the implant's nominal length, which is measured from platform to apex. The plan requires 2.0 mm of clearance between the deepest drill point and the canal. With that platform position unchanged, which is the longest listed implant that preserves the required clearance?

Accepted Answer

6 mm

Answer

8 mm

Answer

9 mm

Answer

10 mm

Question 6

An implant replacing a fractured maxillary central incisor is placed immediately into a socket with an intact facial wall. Its position is restoratively appropriate, native-bone engagement is firm, and the patient has no parafunctional habits. A screw-retained provisional supports the mucosal contour without blanching. It is clear of the opposing teeth in maximum intercuspation but contacts them during protrusion. Which chairside revision best preserves the intended nonfunctional provisionalization?

Accepted Answer

Remove the protrusive contact while retaining the provisional and its tissue contour

Answer

Add a light intercuspal contact to distribute force between closure and protrusion

Answer

Replace the provisional with a cover screw and submerge the implant until integration

Answer

Retain the protrusive contact because the provisional is already clear in intercuspation

Question 7

At re-entry after horizontal ridge augmentation, the flap has healed without exposure or infection, but the intended ridge width was not obtained. The collagen membrane had collapsed into a broad, noncontained defect, and the particulate graft followed the collapsed contour. Which change most directly addresses the mechanism of this result?

Accepted Answer

Provide rigid space support and secure fixation for the regenerative volume

Answer

Replace the scaffold with autogenous particles but retain the same unsupported membrane design

Answer

Use a more slowly resorbing particulate material beneath an otherwise unchanged membrane

Answer

Use the same barrier design but allow a longer graft-maturation interval

Question 8

A patient with a bioprosthetic aortic valve is scheduled for implant placement involving a mucosal incision. Previous amoxicillin exposure caused urticaria, wheezing, and hypotension. The patient can take oral medication and is not currently taking an antibiotic. For infective endocarditis prophylaxis, which single oral dose should be given 30-60 minutes before the procedure?

Accepted Answer

Azithromycin 500 mg

Answer

Cephalexin 2 g

Answer

Clindamycin 600 mg

Answer

Amoxicillin 2 g

Question 9

An unloaded implant has an insertion torque of 40 N·cm. Resonance-frequency measurements made with the same transducer type and measurement direction yield ISQ values of 74 at placement, 68 at three weeks, and 77 at eight weeks. Healing is painless, the fixture is immobile, and no progressive radiographic change is present. Which interpretation best explains the entire trajectory?

Accepted Answer

Remodeling reduced initial mechanical stability before biological stabilization increased stiffness

Answer

The later rise reflects increasing thread compression rather than development of secondary stability

Answer

Bone-to-implant contact fell to 68% and then recovered to 77% of the implant surface

Answer

The initial fall establishes loss of osseointegration even though the later reading exceeds baseline

Question 10

Three years after peri-implantitis treatment, an implant has probing depths of 3-4 mm without bleeding, suppuration, pain, or mobility. Standardized radiographs have remained unchanged throughout those three years, although the bone crest is 4 mm apical to the most coronal intraosseous implant surface. The patient cleans effectively and attends supportive care. What should the present maintenance assessment lead to?

Accepted Answer

Continue individualized supportive care and compare future findings with the stable baseline

Answer

Repeat nonsurgical peri-implantitis treatment for the persistent radiographic defect

Answer

Arrange regenerative surgery because the residual bone level meets the 3-mm disease threshold

Answer

Obtain annual CBCT studies to detect occult disease despite unchanged clinical and intraoral findings

Free DABOI/ID Practice Questions

Domain 1: Obtaining and assessing diagnostic data 15% of exam

Question 1

Question 2

Domain 2: Developing and presenting a patient treatment plan 18% of exam

Question 3

Question 4

Domain 3: Implementing patient treatment 44% of exam

Question 5

Question 6

Question 7

Question 8

Domain 4: Maintaining the effectiveness of the dental implant treatment 8% of exam

Question 9

Domain 5: Prevention and management of complications 15% of exam

Question 10

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