Tooth loss symposium Flashcards
How do we assess the complexity of an oral surgery case?
By considering medical (ASA, medications, BMI),
patient (age, ethnicity, perio status, OH, access, capacity), and
surgical factors (tooth/roots/crown, bone density, adjacent teeth, pathology, impaction, anatomy).
What are the key aspects of oral surgery in the context of tooth loss?
History and diagnosis, patient assessment (medical, clinical), predicting difficulty (simple, advanced, complex), and mitigating bone loss.
💊 Q: What medication increases the risk of MRONJ after extraction?
Bisphosphonates.
Why is it important to maintain function and aesthetics after extraction?
To preserve function, appearance, and help with future rehabilitation—extractions can cause bone loss and change anatomy.
What are the 5 stages of bone healing post-extraction?
A:
Granulation & clot formation
Granulation tissue replaces clot
Woven bone formation
Bone trabeculae fill socket
Epithelial closure and remodeling
What is piezo surgery and what’s its benef
A technique using ultrasonic frequency to cut bone with minimal trauma to nearby structures.
What types of bone grafts are used in socket preservation?
Autogenous (self), allogeneic (same species), xenogenic (other species), alloplastic (synthetic).
What is Platelet Rich Fibrin (PRF) and how is it used?
PRF is made from the patient’s blood and mixed with graft material to enhance regeneration—especially useful in oncology cases.
What is osseointegration?
The bone’s adaptation and fusion with a dental implant over several months.
What are common complications of implants?
Peri-implantitis, nerve injury, bone loss, especially in smokers, bisphosphonate users, radiotherapy patients, and those with poor OH.
What imaging is vital before placing implants?
CBCT to evaluate bone width, height, and proximity to anatomical structures.
What are 10-year success rates for prosthodontic options?
Implants: 95%,
Fixed bridges: 90%,
Cantilever bridges: 80%,
Resin bonded: 65%.
What factors contraindicate implants?
Poor OH, uncontrolled perio disease, smoking, bisphosphonates, diabetes, radiotherapy.
What is Ante’s law?
Abutment root surface area must be ≥ area of teeth being replaced.
What are indications for conventional bridgework?
Stable perio, good OH, well-restored abutments, small gaps.
What are contraindications for adhesive bridges?
Poor OH, bruxism, short crowns, large restorations, inadequate enamel.
What are pros and cons of resin bonded bridges?
✅ Conservative, cheap, minimal prep. ❌ Debonding, grey show-through, unsuitable for restored teeth.
What are pros and cons of conventional bridges?
✅ Durable, span long gaps. ❌ Requires tooth prep, may cause caries/fracture.
Why replace missing teeth?
For aesthetics, function, phonetics, occlusion, prevent drifting, and improve confidence.
Disadvantages of replacing missing teeth?
Plaque accumulation, trauma, occlusal changes, cost, maintenance.
What is osseointegration?
The direct structural and functional connection between living bone and the surface of a load-bearing dental implant.
What are the stages of osseointegration?
Initial healing and clot formation
Osteoblast migration and bone matrix formation
Woven bone formation
Remodeling into lamellar bone
Functional loading and maturation
How long does osseointegration typically take?
Usually 3–6 months, depending on bone quality and implant site.
What can impair osseointegration?
Smoking, poor OH, uncontrolled diabetes, bisphosphonate use, infection, micromovement, and radiotherapy.
