56. Complications in implantology Flashcards
Common complications associated with autogenous bone harvesting and grafting from mandibular symphysis
- Altered neurosensory disturbances=>mental paresthesia=>
- Mandibular anterior teeth and soft tissues of chin area
- Increased risk of mandibular fractures
- More complications compared to ramus donor site
Potential complications when harvesting bone from the ramus
- Damage to inferior alveolar nerve
- Trismus
- Damage to buccal nerve=>rare
Common complications at recipient site during bone grafting procedures
- Wound dehiscence
- Flap necrosis
- Graft exposure and contamination
- Infection
- Problems w/ bone graft incorporation and resorption
How many potential postsurgical complications in bone grafting be avoided
- Proper flap reflection
- Intimate fixation of graft
- Ensuring flap coverage without tension
- Immobilizing bone graft material and barrier membranes
- Adjusting provisional restorations to prevent pressure over grafted areas
Most common complication associated with guided bone regeneration
- Premature exposure of barrier membrane=>
- Necrosis of overlying flap
Complications from inadequate soft-tissue healing after tooth extraction in guided bone regeneration
- Soft tissue or bone graft infection
- Failure to regenerate adequate bone volume
- Mucogingival problems=>loss of keratinized tissue and decrease in vestibule
Intraoperative complications associated with the lateral window sinus lift procedure
- Bleeding=>damage to vascular supply of lateral wall of sinus
- Perforation of Schneiderian membrane
How benign paroxysmal positional vertigo (BPPV) minimized during crestal (osteotome) sinus lift procedures
- Apply manual force instead of hammer percussion
- Surgical fraise in combination w/ osteotomes=>
- Minimize trauma
- Alternative techniques=>inflatable balloon techniques
- Selective drill systems, and piezoelectric surgical instruments
-BPPV=>one of the most common causes of vertigo=> sudden sensation that you’re spinning
Significant complications associated with immediate loading after implant placement
- Failure to achieve primary stability
- Implant failure
- Poorly constructed restorations=>
- Loosening or unseating of provisional restoration
Other=> Poor implant position, Bone loss, Recession of periimplant marginal soft tissues, Compromised esthetics
Potential surgical complications related to dental implants
- Damage to adjacent teeth
- Injury to nerves
- Iatrogenic jaw fractures
- Postoperative bleeding, hematoma, and infection
Most significant risk indicators for periimplantitis
- Poor oral hygiene
- History of periodontitis
- Diabetes
- Cigarette smoking
- Alcohol consumption
- Characteristics of implant surface
Cause of ultimate mechanical failure in dental implants
- Fatigue of implant materials
- Weakness in prosthetic design or dimension
- Nonpassive fit of the prosthetic framework
- Physiologic or biomechanical overload
