Implantology_Dr.ep_Davy(51-95)
51. Oral hygiene cannot predict when:
Adequate instruction and recall
Complicated design of implant abutment
Good oral heath aids
Simple design of abutments are utilized.
52. The group III of the residual ridge is:
Resorption of basal bone
Minor ridge remodeling
basal bone ridge
Sharp atrophic residual ridge
53. Adequate Bone Volume for Implant by Spray JR et al. Ann periodontol 2000:
Thickness of 1 to 1.5mm buccal and lingual plate for ridge expansion.
Favorable facial bone thickness 1.8 to 2.0mm
At least 1mm buccal and lingual plate.
Minimum thickness of 1.5 to 2.5mm buccal and lingual plate
54. The Solution of Insufficient Bone Width:
Alveoloplasty
GBR
Small diameter fixture
Ridge expansion / split
All are correct
55. The Rule 2 for mesio-distal position of implant is :
Implant to tooth: 2~3mm apart
Center of restorative crown
Implant to implant: 3~4mm apart
At least 1mm buccal and lingual plate
56. When the Bone Height is insufficient the solutions are:
Small diameter fixture
Short wide fixture
Alveoloplasty
Sinus lifting
Short wide fixture and Sinus lifting is correct
57. Bone density of D2 is:
A thin layer of cortical bone with low-density trabecular
A dense trabecular bone of favorable strength
A thick layer of compact bone surrounding a core of trabecular bone
Homogenous compact bone
58. We diagnose the bone density via:
Oral Examination
General health condition/ Age/sex of patient
Asking the patient
Model analysis
59. Surgery technique for D2 :
Bone compaction
Larger final drill
Tapping – option
Bicortical installation
60. Which one is not recommended for Surgery of D4?:
Bone compaction
Bicortical installation
Larger final drill
Finish with hand wrench
61. Surgery for D3:
Larger final drill
Bone tapping
Reduce final drill diameter
Fixture installation under 15N torque
62. Healing Period of Rough surface implant:
D1 4~5 months
D2 2~3 months
D3 6~8 months
D4 3~4 months
63. Surgical Technique for Various Bone Density:
Amount of torque during fixture installation
Drilling method
Size of final drill
A and B is correct
All are correct
64. Bone Density D1:
Thick cortical bone & dense sponge bone
Most preferred density
Posterior Mx
Almost cortical bone
65. Bone Density D4:
Atrophic anterior Mx & Mn
Thin cortical bone with loose sponge bone
Almost cortical bone
Most preferred density
66. Surgical technique for D2:
Standard product protocol
Preservation of cortical bone
Reduce up and down during drilling
Almost cortical bone
67. Ridge Expansion :
Possible fracture, resorption,
Loss of cortical bone
Maxilla is easier than mandible
Loss of bone height
Loss of cortical bone and Loss of bone height is wrong
68. Suggested Implant Diameter to Molar :
3.5~4.0
4.0~4.5
4.5~5.0
3.5~4.5
69. 34. What are the traditional BraneMark protocols?:
12 months period after tooth extraction.
Healing period of 3 to 4 months.
Total treatment time 16 months.
All of them are correct.
70. Attempt to shorten overall treatment length:
Immediate loading.
Immediate implant.
Implant surface design
All of them are correct.
71. Why immediate implant?:
No bone graft or membrane addition.
Initial stability.
Primary closure is fine.
Reduction of treatment time
72. What is the contraindications for immediate implant?:
Endodontic failure.
Insufficient apical bone.
Traumatically avulsed tooth.
Periodontal bone loss without purulent.
73. The measurements for the infected site :
Saline irrigation.
Antibiotic administration.
Stay clear of buccal plate.
All of them are incorrect.
74. Surgical procedure for Immediatethe implant :
Prohibited area buccal / labial
1mm of buccal bony wall for upper incisors.
Can not follow standard principal drilling.
Non of them is correct.
75. Choose the correct answer for immediate implant:
Reducing buccal retraction, flapless if no GBR.
Initial stability is not necessary.
Tooth mobility with chronic irritation is not a contraindications.
Site preparation followed MID B-L and MID M-D for maxillary incisors.
76. Choose the wrong answer for immediate provisional restoration:
Space maintenance.
Preserve ridge contour.
Promoting osseointegration.
Promote peri implant mucosal health.
77. Why delayed Implant placement ?:
Decreased patient's psychological stress.
Able to use longer implant.
Superior aesthetic result.
In the present of active infection.
78. Rule for mesio distal position of implant :
Implant to implant 2~3mm
Implant to tooth 3~4mm
Center of restoration crown :
All of them are wrong.
79. Antero posterior mandible :
Mandibular canal is 6mm below 2nd molar apex
12% patients, anterior loop of mandible canal exstends 5mm anterior to the mental foramen.
Mental foramen average 10-12mm from Mn interior border.
All of them are correct.
80. Influence of bone density on Implant success rate :
Lower success rate in anterior mandible.
Highest failure rate in posterior mandible.
Higher success rate in better bone quality.
These reported failure are primary related to surgery healing.
81. The maxilla has a thin cortical plate and fine trabecular bone due to :
The maxilla is a force absorption unit.
Any strain to the maxilla is transferred.
The maxilla is an independent structure.
All of them are wrong.
82. Bone density and Hounsfield Units:
D1 < 1250 HU
D2 550- 750 HU
D3 350- 850 HU
D4250 - 450 HU
D5 < 350 HU
83. Bone density quality:
D1has greatest BIC
D4 magnitude of the strain is further apical
D2 has 65 - 75 BIC
Ti - D4 interface : pathologic overload .
All of them are correct.
84. Implant Treatment plan :
Reducing stress when Bone density decreased.
D3 bone benefits from longer implant.
D4 bone one implant per one tooth.
All of them are correct.
85. Treatment modifier when low bone density :
Implant number
Prosthetic designs
Implant surface condition
Implant size .
All of them are correct.
86. What's the dental Implant ?:
Medical device to replace and act as a missing biological structure.
The Implants for plastic surgery.
An artificial tooth root replacement.
An Implant is placed for joint , breast, eyes.
87. The top reason to choose a dental implant:
Hight success rate .
Safe for adjacent natural teeth.
Preventing bone loss.
All are correct .
88. The most successful and widely accepted dental implant :
Osseointegrated implant .
Endosseous implant .
Subperiosteal Implant.
Blade implant.
89. Osseointegration is:
A lack of mobility and ability of the implant to resist functional loading.
Bone ingrowth into a metal implant.
Direct structure and functional connection between living bone and surface of implant.
All are correct.
90. Interfering factors for osseointegration :
Traumatic surgery
Overloading
Implant movement
All of them are correct.
91. Progressive loading :
Functional loading within 48 hours after implant placement.
Stepwise, increased loading through primary restoration.
Prosthetic restoration after within 8 to 10 weeks after implant placement with temporary.
The prosthesis is attached in a second procedure after a healing period.
92. Evolution of surface technology:
2nd generation : RBM , SLA , HA coating , Fluoride.
3rd generation : peptides, growth factors.
Rough surfaces are better osseointegration but smooth surface is less bone resorption.
1st generation machined, sintering
93. Choose the correct answer :
The reduced implant survival is more related to arch location not bone density.
Mandible is a force distribution unit.
The trabecular bone in mandible is more coarse compared to the maxilla.
All of them is incorrect.
94. Choose the incorrect answer:
D4 bone is more likely to cause implant mobility and failure.
Each bone density has a different strength.
Bone density doesn't affect elastic modulus
The diagnosis of the bone density in a implant site is a key determinant for clinical success.
95. The advantage of Implant :
Better longevity.
No alveolar bone resorption.
More esthetic and higher bite fore compared to dentures.
All of them are correct.
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