Question 1

Which of the following defects heals best with periodontal surgical regeneration?&#10;A)Class III maxillary molar furcation&#10;B)Class II maxillary molar distal furcation&#10;C)One-wall infrabony&#10;D)Three-wall infrabony&#10;E)Horizontal bone loss

Accepted Answer

Three-wall infrabony defects have the highest potential for regeneration with periodontal surgery compared to other types of defects, due to the presence of three walls of remaining bone. The surgical technique involves placement of a bone graft or membrane to regenerate lost bone and restore support to the affected tooth. Class III and II furcation defects may require more complex surgical approaches or have a lower success rate. One-wall infrabony defects may have limited potential for regeneration due to the lack of remaining bone walls, and horizontal bone loss may require different types of treatment depending on the cause and extent of the defect.

Question 2

Which of the following bone grafts/bone substitutes is considered to be a &#34;bone filler&#34; and not osteogenic?&#10;A)Autograft&#10;B)Alloplast&#10;C)Xenograft&#10;D)Allograft&#10;E)Heterograft

Accepted Answer

An alloplast is a bone substitute that is not derived from any living tissues and is therefore not osteogenic (able to promote new bone growth). Instead, it is considered a bone filler, as it is used to fill spaces or voids in bone where new bone growth is not required or expected. Autografts, allografts, and xenografts are all capable of promoting new bone growth and can therefore be considered osteogenic. A heterograft is a type of xenograft, which means that it is derived from a different species and therefore has a higher risk of rejection, but it is still considered osteogenic.

Question 3

Which of the following bone grafts is taken from human cadavers?&#10;A)Autograft&#10;B)Allograft&#10;C)Alloplast&#10;D)Xenograft&#10;E)Heterograft

Accepted Answer

Allografts are bone grafts taken from human cadavers. Autografts are taken from the patient's own body, alloplasts are synthetic grafts, xenografts are taken from other species, and heterografts are a synonym for xenografts.

Question 4

All of the following are types of periodontal surgical regenerative procedures except one. Which one is the exception?&#10;A)Open flap debridement&#10;B)Osseous resection&#10;C)Guided tissue regeneration&#10;D)Surgery with bone grafts

Accepted Answer

Osseous resection is a resective procedure, not a regenerative one. It involves the removal of bone to reshape the alveolar bone, whereas regenerative procedures aim to restore lost periodontal structures.

Question 5

Which of the following bone materials is a xenograft?&#10;A)DFDBA&#10;B)FDBA&#10;C)Bovine bone&#10;D)Hydroxyapatite&#10;E)Intraoral bone from maxillary tuberosity

Accepted Answer

Xenograft refers to a bone material taken from a different species other than human. Bovine bone is an example of a xenograft, while DFDBA (Demineralized Freeze-Dried Bone Allograft), FDBA (Freeze-Dried Bone Allograft), hydroxyapatite, and intraoral bone from maxillary tuberosity are all human bone-derived materials, therefore not xenografts.

Question 6

Which of the following materials is used to inhibit epithelial migration into the surgical site?&#10;A)Bone grafts&#10;B)Bone substitutes&#10;C)Barrier membranes&#10;D)Surgical sutures

Accepted Answer

Barrier membranes are used to inhibit epithelial migration into the surgical site. They act as physical barriers and prevent the migration of epithelial cells, allowing the underlying bone or tissue to heal without interference. Bone grafts and substitutes are used to promote bone growth and are not specifically meant to inhibit epithelial migration. Surgical sutures are used to close wounds and are not intended to inhibit epithelial migration.

Question 7

Which of the following bone grafts is taken from an extraction site in the patient's mouth?&#10;A)Autograft&#10;B)Allograft&#10;C)Heterograft&#10;D)Xenograft&#10;E)Alloplast

Accepted Answer

An autograft is a bone graft taken from the patient's own body, and one common source of autografts is an extraction site in the patient's mouth.

Question 8

Which of the following is most important for a desirable outcome of periodontal regenerative procedures?&#10;A)Meticulous oral hygiene self-care&#10;B)Avoiding fluoride-containing toothpastes&#10;C)Avoiding hot beverages&#10;D)Eliminating hard food from diet

Accepted Answer

Meticulous oral hygiene self-care is crucial for a desirable outcome of periodontal regenerative procedures. This includes daily brushing and flossing to remove plaque and food debris and regular professional cleanings to remove any residual calculus or tartar. A healthy oral environment promotes healing and prevents the recurrence of periodontal disease. Avoiding fluoride-containing toothpaste, hot beverages, or eliminating hard food from the diet may be recommended in some cases, but they are not the most important factors in achieving periodontal regeneration.

Question 9

Which of the following cells is involved in degrading Resolut barrier membrane?&#10;A)Bone&#10;B)Periodontal ligament&#10;C)Macrophage&#10;D)Lymphocytes

Accepted Answer

Macrophages are a type of immune cell that can break down and digest foreign bodies such as the Resolut barrier membrane. Bones and periodontal ligaments are not directly involved in the degradation process. Lymphocytes are involved in the immune response, but they are not typically responsible for directly degrading foreign bodies.

Question 10

Which of the following tissues is the fastest growing?&#10;A)Bone&#10;B)Epithelium&#10;C)Connective tissue&#10;D)Root cementum

Accepted Answer

Epithelium is the fastest growing tissue as it undergoes continuous cellular division and differentiation to replace damaged or lost cells. Bone and connective tissue have a slower turnover rate, and root cementum is a specialized connective tissue that does not undergo much growth or turnover.

Question 11

Which of the following types of cells is intended to repopulate the wound area in guided tissue regeneration surgery?&#10;A)Periodontal ligament&#10;B)Gingival&#10;C)Connective tissue&#10;D)Epithelial basal

Accepted Answer

The answer of Which of the following types of cells...

Question 12

Which of the following membranes is made of collagen?&#10;A)BioGide&#10;B)Atrisorb Freeflow&#10;C)OsseoQuest&#10;D)Resolut

Accepted Answer

The answer of Which of the following membranes is made...

Question 13

Which of the following bony defects has a lesser chance of regeneration with a bone graft or bone replacement material?&#10;A)One-wall infrabony on the maxillary first premolar&#10;B)Three-wall infrabony on the mandibular second molar&#10;C)Class II buccal furcation of mandibular first molar&#10;D)Class II buccal furcation on the mandibular second molar

Accepted Answer

The answer of Which of the following bony defects has...

Question 14

Which of the following terms is used for a surgical procedure that will impede the epithelial migration during healing of the periodontal wound?&#10;A)Guided tissue regeneration&#10;B)Gingival curettage&#10;C)Incision and drainage&#10;D)Intracrevicular incision

Accepted Answer

The answer of Which of the following terms is used...

Question 15

Which of the following bone materials is an allograft?&#10;A)Bio-Oss&#10;B)DFDBA&#10;C)Perioglas&#10;D)Emdogain

Accepted Answer

The answer of Which of the following bone materials is...

Question 16

Which of the following bone materials is an alloplast?&#10;A)Capset&#10;B)DFDBA&#10;C)Gem 21S&#10;D)Bone from extraction socket

Accepted Answer

The answer of Which of the following bone materials is...

Question 17

In which of the following tissues do osteoblasts and cementoblasts originate?&#10;A)Alveolar bone&#10;B)Cementum&#10;C)Periodontal ligament&#10;D)Gingival epithelium&#10;E)Connective tissue

Accepted Answer

The answer of In which of the following tissues do...

Question 18

Which of the following materials is classified as an enamel matrix protein derivative?&#10;A)Perioglas&#10;B)Emdogain&#10;C)BioGuide&#10;D)Gore-Tex

Accepted Answer

The answer of Which of the following materials is classified...

Question 19

All of the following are goals of using bone grafts/bone substitutes in infrabony defects except one. Which one is the exception?&#10;A)Reduction in probing depths&#10;B)Loss of clinical attachment levels&#10;C)Filling of osseous defects&#10;D)Regeneration of new supporting bone, cementum, and PDL

Accepted Answer

The answer of All of the following are goals of...

Question 20

Which of the following membranes is made of PLA (poly-DL-lactide)?&#10;A)BioMend&#10;B)Reguarde&#10;C)Epi-Gide&#10;D)BioGide

Accepted Answer

The answer of Which of the following membranes is made...

Question 21

Emdogain is a porcine, enamel matrix ________ derivative.

Accepted Answer

The answer of Emdogain is a porcine, enamel matrix ________...

Question 22

Compare and contrast different bone replacement materials.

Accepted Answer

The answer of Compare and contrast different bone replacement materials....

Question 23

Bone grafts are used during periodontal surgery for vertical bony ________.

Accepted Answer

The answer of Bone grafts are used during periodontal surgery...

Question 24

Barrier membranes are used during guided tissue ________.

Accepted Answer

The answer of Barrier membranes are used during guided tissue...

Question 25

GTR is an abbreviation for ________ tissue regeneration.

Accepted Answer

The answer of GTR is an abbreviation for ________ tissue...

Question 26

Gore-Tex Titanium Reinforce is a type of nonabsorbable ________ membrane.

Accepted Answer

The answer of Gore-Tex Titanium Reinforce is a type of...

Question 27

BioMend is a type of ________ barrier membrane.

Accepted Answer

The answer of BioMend is a type of ________ barrier...

Question 28

Puros is a type of ________ bone.

Accepted Answer

The answer of Puros is a type of ________ bone....

Question 29

Demineralized freeze-dried bone is abbreviated as ________.

Accepted Answer

The answer of Demineralized freeze-dried bone is abbreviated as ________....

Question 30

PDGF is an abbreviation for platelet-derived ________ factor.

Accepted Answer

The answer of PDGF is an abbreviation for platelet-derived ________...

Question 31

A barrier membrane is placed over the ________ defect.

Accepted Answer

The answer of A barrier membrane is placed over the...

Question 32

Formation of periodontal tissue that was destroyed is referred to as periodontal ________.

Accepted Answer

The answer of Formation of periodontal tissue that was destroyed...

Deck 22: Principles of Periodontal Surgery: Periodontal Regeneration