What Do You Know Wednesday graphic
Complications of Zygomatic Implants
 
Learning objectives:

- Recognize early and late complications associated with zygomatic implants. 

- Interpret clinical and radiographic findings relevant to diagnosis. 

- Select evidence‑based strategies for prevention and management.

 
Instructions:
Please select the single best answer for each question. This quiz has 20 multiple choice questions. Answering 17 or more questions will generate a certificate of completion for this quiz that we invite you to share on social media. Tag @iaomscommunications on Instagram.
 
Everyone who completes the quiz and submits their email will receive an email with their answer summary (correct and incorrect answers) and a specialized listing of IAOMS webinars to brush up on related skills. Most IAOMS webinars in our e-Learning Library are FREE for IAOMS Members. Not a member? Find out more!
 
Thank you and good luck!

What is the most common complication associated with zygomatic implants in the early postoperative period?
Implant fracture
Superficial or deep infection at the implant site
Injury to the infraorbital nerve
Intraorbital hemorrhage
Which condition is most frequently associated with transantral placement of zygomatic implants?
Chronic maxillary sinusitis
Mandibular osteomyelitis
Lingual paresthesia
Orocutaneous fistula
What is the most likely cause of exposure of the zygomatic implant head in the palatal region?
Poor prosthetic planning
Mucosal dehiscence due to tension or thin soft‑tissue biotype
Allergic reaction to titanium
Fracture of the prosthetic abutment
In the event of postoperative maxillary sinusitis after implant placement, what is the recommended first diagnostic step?
Immediate nasal endoscopy without imaging
Computed tomography (CBCT or CT) of the paranasal sinuses
Magnetic resonance imaging of the brain
Plain panoramic radiograph
What is the most feared ocular complication following placement of zygomatic implants?
Subconjunctival hemorrhage
Globe injury from instrumentation
Diplopia due to involvement of an extraocular muscle or the orbit
Traumatic cataract
Which factor increases the risk of early failure of a zygomatic implant?
Use of local anesthesia instead of general anesthesia
Untreated preexisting sinus infection
Patient age over 30 years
Placement of implants in a single surgical stage
What is the most appropriate management for a persistent oroantral fistula after zygomatic implant placement?
Observe without intervention for 6 months
Surgical closure of the fistula and management of the sinus (possible antrostomy)
Immediate removal of all zygomatic implants
Oral antibiotics for 3 days only
Which complication is directly related to incorrect implant trajectory relative to the zygomatic cortical bone?
Frontal sinus perforation
Loss of anchorage and implant mobility due to inadequate zygomatic bone support
Cutaneous hypersensitivity
Mandibular hypoplasia
What is the best preventive strategy to minimize mucosal dehiscence around zygomatic implants?
Routine use of autogenous bone grafting in all cases
Three‑dimensional planning and meticulous soft‑tissue management; avoid tension on closure
Placing implants longer than the available bone
Avoiding perioperative antibiotic prophylaxis
Which pharmacologic agent has been shown to reduce intraoperative bleeding in zygomatic implant surgery?
Preoperative oral anticoagulants
Antifibrinolytic agents such as tranexamic acid (per protocol)
Systemic corticosteroids only
Rapid‑acting antihypertensive agents
What is the most common prosthetic complication associated with rehabilitations on zygomatic implants?
Fracture of the prosthesis or prosthetic screws due to overload or inadequate design
Caries in remaining teeth
Discoloration of the prosthesis from staining
Acrylic hypersensitivity
In patients with a history of chronic sinusitis, what is the most appropriate preoperative course of action before placing zygomatic implants?
Proceed without changes, as it does not affect outcomes
Otolaryngology evaluation and treatment or control of the sinus prior to surgery
Administer a single dose of antibiotic on the day of surgery only
Extract third molars beforehand
Which CT finding indicates increased risk when planning a zygomatic implant?
Zygomatic bone of good density and thickness
Wide nasal airway
Thin or defective zygomatic cortical bone due to prior resection or tumor
Absence of maxillary sinuses
What is the most accepted indication for removal of an infected, nonintegrated zygomatic implant?
Retain the implant and treat with local irrigations only
Remove the affected implant and perform reconstructive management according to the defect
Immediately replace it with another zygomatic implant in the same session
Do not intervene and refer to general dentistry
Which serious vascular complication, although rare, can occur during zygomatic implant placement?
Deep vein thrombosis
Severe arterial hemorrhage from injury to branches of the facial or maxillary artery
Ischemia of the upper limb
Chronic postoperative hypotension
What is the best practice for long‑term follow‑up of patients with zygomatic implants?
Periodic clinical reviews with selective imaging based on findings
Mandatory annual 3D CT scans for all patients
Telephone follow‑up only if the patient reports problems
) No follow‑up required after 6 months
Which neurologic complication can result from implant trajectory or pressure in the infraorbital region?
Peripheral facial nerve paralysis
Paresthesia or anesthesia of the infraorbital nerve distribution (upper lip and nasal ala sensation)
Sensorineural hearing loss
Chronic dysphagia
Which intraoperative measure reduces the risk of sinus membrane perforation during placement?
Use of large‑diameter burs without depth control
Preoperative CBCT planning and use of guides or controlled angulation and depth during osteotomy
Blind placement relying only on external anatomic landmarks
Avoiding irrigation during osteotomy
Which systemic factor increases the risk of infectious complications and implant failure in zygomatic implants?
Poor glycemic control in diabetes mellitus
Moderate water intake
Age under 20 years Use of preoperative mouth rinses
In the setting of persistent facial pain and implant mobility at 6 months, what is the most appropriate course of action?
Continue observation without change
Clinical and radiographic evaluation and consider explantation if there is failure or chronic infection
Increase prosthetic loading to stimulate integration
Prescribe chronic analgesics only
Name (First and Last name as you would like it to appear on your certificate, if you get 17 out of 20 correct answers):
{"name":"Complications of Zygomatic ImplantsPlease select the single best answer for each question.", "url":"https://www.quiz-maker.com/QPXHCAJW1","emurl":1,"txt":"What is the most common complication associated with zygomatic implants in the early postoperative period?, Which condition is most frequently associated with transantral placement of zygomatic implants?, What is the most likely cause of exposure of the zygomatic implant head in the palatal region?","img":"https://cloud.quiz-maker.com/uploads/121/5758525-What-do-you-know-weds.png","accounts":"@iaomscommunications","hash":"#IAOMS, #OMFS #OralSurgery #Craniofacial #Maxollofacial #HeadandKneck"}