Restorative Implant Dentistry II Flashcards
Options for anterior single tooth replacement:
Traditional, resin bonded, OR cantilever FDP (for missing lateral incisor), removable, acid-etched, implant
When are cantilevered FDP’as used?
for missing lateral incisors
4yr success rate of Max single tooth implants:
97%
8ys survival rate of Max single tooth implants:
97.5% (? Greater than 4y?)
Influencing factor of tx for Max single tooth implants:
age, compliance, fear, esthetics, biologic complications (damage to adjacent teeth), pt availability, cost, open contact bw implant & adjacent teeth
Contributing factors to Max anterior single tooth replacement:
craniofacial growth, transeptal fibers, occlusal forces, interproximal wear(?), contact surfaces (size, location) root angulation, crown ht, occlusal relationship, MD space at crown and bone level, available bone ht/ BL width, transitional prosthesis, soft tissue drape type-surrounding gingival tissues
When is age a large factor when decided to place an implant:
further growth, esp. continuous eruption of adjacent teeth, esp pts w short or long face
gingiva type that reacts to disease w pocket formation and infrabony defect formation
Thick
gingiva w min attached gingiva:
thin
thick gingiva:
flat, bony architecture, dense, fibrotic, lots of attached gingiva, thick underlying osseous form, resistant to acute trauma, reacts to disease w pocket formation and infrabony defect formation
Thin gingiva:
scalloped soft tissue and bony architecture, delicate, friable, min attached gingiva, thin underlying bone characterized by dehiscence and fenestration, reacts to insults & disease w gingival recession
High-scalloed gingiva is characterized as:
thin, high esthetic risk
Gingival esthetic risk factors:
reduced IS, heavy smoker, high lip line, high-scalloped, thin gingiva, triangular shaped crowns, acute infection, 7+mm to contact point, restored adjacent teeth, 2+ missing teeth, soft-tissue defect, vertical bone deficiency
Crown shape that is low risk for esthetic complications;
rectangular
Medium esthetic risk pts:
Light smoker, medium lip line, medium-scalloped, meduium-thick, chronic infection at implant site, 5.5 to 6.5mm to contact point, less than 7mm for 1 tooth, less than 5.5mm for 1 tooth, horizontal bone deficiency
How many mm below the facial CEJ of the adjacent teeth should the midrcestal position of the edentulous site be?
2mm below the facial CEJ of adjacent teeth
How much more scalloped should the interproximal bone be than the midcrestal position?
3mm
The FP width of bone at crest for an anterior implant should have at least:
1.5mm on facial + the dimension of the implant at the crest module, plus 1mm on the palatal (I thought 1.5mm on each side!)
determines position of periimplant soft tissue?
biological width, biotype, width & ht of surrounding bone
What affects the biological factors?
type of flap, position of implant, prosth factors
Dominant factor in interproximal papilla:
tooth-side bone level
Max distance in mm from contact point to crest of bone for the papilla to still be present:
5mm, at 6mm only 60%
Interelement distance that most frequently results in adequate papillary fill:
3mm, must be AT LEAST 1.5mm
How we do presurgical planning:
clear suck down over model, mark ideal line of placement on suck down, bone sounding, drill hole in cast to desired length, place hollow cylindrical guide in cast and through suck down, extend line through implant placement site on B and L
