IMPLANT DENTISTRY EXAM I - 8180 QUESTIONS WITH
COMPLETE SOLUTIONS.
What is a dental implant? Answer - - An alloplastic material or device that is
surgically placed beneath the mucosal or periosteal layer and on/or within the
bone to provide retention and support for a fixed or removable prosthesis
T/F
The first dental implants were pieces of shell placed into extraction sockets in
600 A.D. Implants placed due to tooth removal due to caries have a better
prognosis than teeth removed due to perio disease. Answer - - True (the 1st
modern implants were by J. Maggiolo 1809)
- True
What are the 3 main implant classifications? Answer - - Morphology
- Constituent material
- Position: subperiosteal, transosseous, endosseous
Why are subperiosteal implants so difficult? *Where are they indicated?*
Answer - - Tissue must be flapped prior to impression being taken for bone
contours; framework is then made, then the tissue must be flapped again for
placement
- Meant for highly resorbed mandibles; require extensive restorative space
Why are transosseous implants not often used anymore? Answer - - They
require an incision to be made through skin to the inferior portion of the
mandible - extensive surgery
,What are the three types of endosseous implants? Which do we typically use
today? Answer - - Blades
- Cylinders
- *Screws*
T/F
Blade implants show a significantly lower number of failures. Bone staple
implants show very high success rates after 5 to 10 years. Answer - - False:
they show a significant number more failures
- True: due to osteointegration
What are the 5 and 10 year success rates for subperiosteal, blade, and bone
staple implants? Answer - - *Subperiosteal*: 60-90% @ 5 years. 36-64% @ 10
years
- *Blade*: 42-66% @ 5 years, 40-50% @ 10 years
- *Transosseous*: 93% @ 5 years, 86% @ 10 years
Who & when coined the term "osseointegration"? What is this? Answer - -
Professor Branemark in 1951
- When titanium integrates with bone
Endosseous root form implants were introduced by _________ in 1955. The
first clinical trial was begun in _______. What were the 2 aspects that this trial
provided today's implants? Answer - - P.I. Branemark
- 1965
- The Science & Predictability
, What is osseointegration? What are 5 osseointegration variables? Answer - - A
direct, structural, and functional connection between ordered, living bone and
the surface of a load carrying implant at the level of light microscopy
- Biocompatibility, macro and micro structure, surgical techniques, time of
loading, state of hosting bone
T/F As we increase in titanium grade, the tensile strength decreases. What is
the difference between CPT & Alloy titanium? Answer - - False: it increases as
we increase in grade; however, the oxidizing qualities decrease
- CPT: 100%Ti
- Alloy: 90% Ti, 6% Aluminum, 4% Vanadium
Nobel Implants are Grade ____ titanium. Straumann are Grade ____ titanium.
T/F The highest tensile strength implants are made from pure Ti. Answer - -
Nobel: Grade 1
- Straumann: Grade 4
- False: TiAl6V4 alloys have 800-1000 N/mm2
T/F
Success rate shown by many studies for endosseous implants is > 95%.
Mandibular implants are more successful than maxillary implants. Answer - -
True
- True
List the location of endosseous implants from most to least successful as
quoted by Dr. K. Answer - - Anterior mandible
- Anterior maxilla
- Posterior mandible
- Posterior maxilla
COMPLETE SOLUTIONS.
What is a dental implant? Answer - - An alloplastic material or device that is
surgically placed beneath the mucosal or periosteal layer and on/or within the
bone to provide retention and support for a fixed or removable prosthesis
T/F
The first dental implants were pieces of shell placed into extraction sockets in
600 A.D. Implants placed due to tooth removal due to caries have a better
prognosis than teeth removed due to perio disease. Answer - - True (the 1st
modern implants were by J. Maggiolo 1809)
- True
What are the 3 main implant classifications? Answer - - Morphology
- Constituent material
- Position: subperiosteal, transosseous, endosseous
Why are subperiosteal implants so difficult? *Where are they indicated?*
Answer - - Tissue must be flapped prior to impression being taken for bone
contours; framework is then made, then the tissue must be flapped again for
placement
- Meant for highly resorbed mandibles; require extensive restorative space
Why are transosseous implants not often used anymore? Answer - - They
require an incision to be made through skin to the inferior portion of the
mandible - extensive surgery
,What are the three types of endosseous implants? Which do we typically use
today? Answer - - Blades
- Cylinders
- *Screws*
T/F
Blade implants show a significantly lower number of failures. Bone staple
implants show very high success rates after 5 to 10 years. Answer - - False:
they show a significant number more failures
- True: due to osteointegration
What are the 5 and 10 year success rates for subperiosteal, blade, and bone
staple implants? Answer - - *Subperiosteal*: 60-90% @ 5 years. 36-64% @ 10
years
- *Blade*: 42-66% @ 5 years, 40-50% @ 10 years
- *Transosseous*: 93% @ 5 years, 86% @ 10 years
Who & when coined the term "osseointegration"? What is this? Answer - -
Professor Branemark in 1951
- When titanium integrates with bone
Endosseous root form implants were introduced by _________ in 1955. The
first clinical trial was begun in _______. What were the 2 aspects that this trial
provided today's implants? Answer - - P.I. Branemark
- 1965
- The Science & Predictability
, What is osseointegration? What are 5 osseointegration variables? Answer - - A
direct, structural, and functional connection between ordered, living bone and
the surface of a load carrying implant at the level of light microscopy
- Biocompatibility, macro and micro structure, surgical techniques, time of
loading, state of hosting bone
T/F As we increase in titanium grade, the tensile strength decreases. What is
the difference between CPT & Alloy titanium? Answer - - False: it increases as
we increase in grade; however, the oxidizing qualities decrease
- CPT: 100%Ti
- Alloy: 90% Ti, 6% Aluminum, 4% Vanadium
Nobel Implants are Grade ____ titanium. Straumann are Grade ____ titanium.
T/F The highest tensile strength implants are made from pure Ti. Answer - -
Nobel: Grade 1
- Straumann: Grade 4
- False: TiAl6V4 alloys have 800-1000 N/mm2
T/F
Success rate shown by many studies for endosseous implants is > 95%.
Mandibular implants are more successful than maxillary implants. Answer - -
True
- True
List the location of endosseous implants from most to least successful as
quoted by Dr. K. Answer - - Anterior mandible
- Anterior maxilla
- Posterior mandible
- Posterior maxilla
