Oral Pathology: Wound Healing and Bone Repair
93 Questions
2 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the main characteristic of hypertrophic scars?

  • It is a type of wound that heals quickly
  • It is a type of chronic wound
  • It forms a contracture
  • It is a macroscopic disturbance of normal skin architecture (correct)

    • Why do oral wounds tend to heal faster than skin wounds?

  • Due to the presence of necrotic tissue
  • Due to the moist, antibacterial, and clotting properties of saliva (correct)
  • Due to the presence of bacteria
  • Due to the presence of foreign material

    • What is the main factor that affects wound healing in patients with diabetes?

  • Systemic disease (correct)
  • Age
  • Nutrition
  • Local type of wound

    • What is the purpose of recombinant growth factors in wound healing?

    <p>To enhance the growth of new tissue</p> Signup and view all the answers

    What is the main characteristic of chronic wounds?

    <p>They are stuck in the inflammatory phase</p> Signup and view all the answers

    What is the purpose of negative pressure/vacuum therapy in wound healing?

    <p>To remove bacteria and debris from the wound</p> Signup and view all the answers

    What is the main difference between oral and skin wound healing?

    <p>Oral wounds have a more rapid and quickly resolved immune response</p> Signup and view all the answers

    What is the primary goal of wound healing?

    <p>To restore tissue integrity</p> Signup and view all the answers

    What phase of wound healing involves vessel rupture and bleeding?

    <p>Haemostasis</p> Signup and view all the answers

    What type of wound closure is characterized by wound edges being closed surgically?

    <p>Primary intention</p> Signup and view all the answers

    What factor can delay wound healing?

    <p>All of the above</p> Signup and view all the answers

    What is the result of repair in wound healing?

    <p>Lost tissue is replaced by fibrous scar</p> Signup and view all the answers

    What is the difference between labile and permanent cells in wound healing?

    <p>Labile cells divide frequently, while permanent cells do not divide</p> Signup and view all the answers

    Why do oral wounds heal faster and without scarring?

    <p>Due to the specific type of tissue</p> Signup and view all the answers

    What is the main function of macrophages in the granulation tissue?

    <p>Phagocytosis and secretion</p> Signup and view all the answers

    What type of collagen is initially formed during the wound healing process?

    <p>Type III collagen</p> Signup and view all the answers

    What is the percentage of wound strength achieved at 7-10 days?

    <p>10%</p> Signup and view all the answers

    What is the term for the process of reducing cell and capillary density during the remodelling phase?

    <p>Proteolysis</p> Signup and view all the answers

    What type of wound closure involves bringing the wound edges together using mechanical means?

    <p>Primary intention</p> Signup and view all the answers

    What is the purpose of endothelial cells in the granulation tissue?

    <p>Formation of new blood vessels</p> Signup and view all the answers

    At what time period does the wound reach 70-80% strength?

    <p>2-3 months</p> Signup and view all the answers

    What is the primary function of platelets in the wound healing process?

    <p>To form a thrombus and trap themselves within the clot</p> Signup and view all the answers

    Which of the following is a key cell in the early phase of wound healing?

    <p>Neutrophil</p> Signup and view all the answers

    What is the primary function of neutrophils in wound healing?

    <p>To remove bacteria and foreign material</p> Signup and view all the answers

    What is the role of cytokines and growth factors in wound healing?

    <p>To act as chemo-attractants</p> Signup and view all the answers

    Which of the following is a key cell in the later phase of wound healing?

    <p>Fibroblast</p> Signup and view all the answers

    What is the role of macrophages in wound healing?

    <p>To phagocytose remaining debris and secrete cytokines and growth factors</p> Signup and view all the answers

    What is the result of vasodilation in wound healing?

    <p>Increased blood flow</p> Signup and view all the answers

    Which of the following is NOT a key cell in wound healing?

    <p>Erythrocyte</p> Signup and view all the answers

    What is the role of prostaglandins, leukotrienes, and histamine in wound healing?

    <p>To cause vasodilation</p> Signup and view all the answers

    What is the result of granulation tissue formation?

    <p>Wound closure</p> Signup and view all the answers

    What is the primary function of fibroblasts in granulation tissue?

    <p>Collagen production</p> Signup and view all the answers

    What is the characteristics of wound healing by primary intention?

    <p>Wound edges are brought together surgically</p> Signup and view all the answers

    During which phase of wound healing is there a reduction in cell and capillary density?

    <p>Remodelling</p> Signup and view all the answers

    What is the role of vitamin C in wound healing?

    <p>Enhancing collagen production</p> Signup and view all the answers

    What type of collagen is replaced by type I collagen during the remodelling phase?

    <p>Type III collagen</p> Signup and view all the answers

    What is the percentage of wound strength achieved at 2-3 months after wound formation?

    <p>70-80%</p> Signup and view all the answers

    What is the function of proteases during the remodelling phase?

    <p>Breaking down collagen</p> Signup and view all the answers

    What is the primary difference between regeneration and repair in wound healing?

    <p>Regeneration replaces lost tissue with the same type, whereas repair replaces it with fibrous scar</p> Signup and view all the answers

    What determines the type of wound healing process that occurs?

    <p>The cell type, tissue architecture, and amount of tissue lost</p> Signup and view all the answers

    What is the primary goal of the haemostasis phase of wound healing?

    <p>To stop bleeding and restore vascular integrity</p> Signup and view all the answers

    Which of the following can delay wound healing?

    <p>Smoking or having diabetes</p> Signup and view all the answers

    What is the primary characteristic of chronic wounds?

    <p>They are unable to heal and persist over time</p> Signup and view all the answers

    What is the primary function of the proliferation phase of wound healing?

    <p>To stimulate the growth of new tissue</p> Signup and view all the answers

    What is the primary purpose of the remodelling phase of wound healing?

    <p>To strengthen and reorganize the newly formed tissue</p> Signup and view all the answers

    What is the primary goal of assisted wound care?

    <p>To enhance the healing process and prevent complications</p> Signup and view all the answers

    Which of the following is a systemic factor that can affect wound healing?

    <p>Nutritional deficiency (Vitamin C, Zinc)</p> Signup and view all the answers

    What is a characteristic of chronic wounds?

    <p>Accumulation of pro-inflammatory signals and macrophages</p> Signup and view all the answers

    What type of wound closure involves bringing the wound edges together using mechanical means?

    <p>Primary closure</p> Signup and view all the answers

    What is the purpose of maggot therapy in wound healing?

    <p>To remove dead tissue and bacteria</p> Signup and view all the answers

    During which phase of wound healing do fibroblasts migrate and contract?

    <p>Proliferative phase</p> Signup and view all the answers

    What is the purpose of hyperbaric oxygen therapy in wound healing?

    <p>To enhance collagen synthesis and angiogenesis</p> Signup and view all the answers

    What is the primary function of platelets in wound healing?

    <p>To trap within the clot and form thrombus</p> Signup and view all the answers

    What is the role of cytokines and growth factors in wound healing?

    <p>To act as chemo-attractants</p> Signup and view all the answers

    What is the result of vasodilation in wound healing?

    <p>Increased blood flow to the wound site</p> Signup and view all the answers

    What is the primary function of neutrophils in wound healing?

    <p>To remove bacteria and foreign material</p> Signup and view all the answers

    What is the role of macrophages in wound healing?

    <p>To proliferate and secrete growth factors</p> Signup and view all the answers

    What type of cells are fibroblasts?

    <p>Labile cells</p> Signup and view all the answers

    What is the result of granulation tissue formation?

    <p>Proliferation of key cells</p> Signup and view all the answers

    What is the function of thrombus formation?

    <p>To act as a glue to hold the wound together</p> Signup and view all the answers

    What is the role of prostaglandins, leukotrienes, and histamine in wound healing?

    <p>To cause vasodilation</p> Signup and view all the answers

    What type of cells are recruited from the circulation to the wound site?

    <p>Blood monocytes</p> Signup and view all the answers

    What is the primary role of endothelial cells in granulation tissue?

    <p>Formation of new blood vessels</p> Signup and view all the answers

    Which of the following phases of wound healing is characterized by a reduction in cell and capillary density?

    <p>Remodelling phase</p> Signup and view all the answers

    What percentage of wound strength is achieved at 2-3 months after wound formation?

    <p>70-80%</p> Signup and view all the answers

    What is the purpose of proteases during the remodelling phase of wound healing?

    <p>Breakdown of collagen</p> Signup and view all the answers

    What type of wound closure involves bringing the wound edges together naturally by means of granulation and contraction?

    <p>Secondary intention</p> Signup and view all the answers

    What is the role of vitamin C in wound healing?

    <p>Collagen synthesis</p> Signup and view all the answers

    During which phase of wound healing is type III collagen replaced by type I collagen?

    <p>Remodelling phase</p> Signup and view all the answers

    What is the primary purpose of hyperbaric oxygen therapy in wound healing?

    <p>To increase oxygen delivery to the wound site</p> Signup and view all the answers

    Which of the following is a local factor that can affect wound healing?

    <p>Foreign body presence</p> Signup and view all the answers

    What is the main difference between wound healing by primary and secondary intention?

    <p>Primary intention involves closing the wound surgically, secondary intention involves letting the wound close on its own</p> Signup and view all the answers

    What is the primary characteristic of hypertrophic scars?

    <p>Abnormal collagen remodelling</p> Signup and view all the answers

    What is the primary purpose of matrix materials in wound healing?

    <p>To provide a scaffold for tissue growth</p> Signup and view all the answers

    What determines whether wound healing proceeds by regeneration or repair?

    <p>All of the above</p> Signup and view all the answers

    What is the primary difference between primary and secondary wound closure?

    <p>Primary closure involves bringing the wound edges together, while secondary closure involves granulation</p> Signup and view all the answers

    What is the primary goal of the haemostasis phase of wound healing?

    <p>To stop bleeding and activate coagulation cascade</p> Signup and view all the answers

    During which phase of wound healing do macrophages play a crucial role?

    <p>Inflammation</p> Signup and view all the answers

    What can lead to chronic wounds?

    <p>All of the above</p> Signup and view all the answers

    What is the primary goal of the proliferation phase of wound healing?

    <p>To produce granulation tissue</p> Signup and view all the answers

    What type of wound closure is characterized by bringing the wound edges together using mechanical means?

    <p>Primary intention</p> Signup and view all the answers

    Which phase of wound healing involves the reduction of cell and capillary density?

    <p>Remodelling</p> Signup and view all the answers

    What is a common consequence of impaired wound healing?

    <p>All of the above</p> Signup and view all the answers

    Which of the following is NOT released by platelets during the haemostasis phase of wound healing?

    <p>Insulin</p> Signup and view all the answers

    Which type of wound closure is characterized by the use of sutures or staples?

    <p>Surgical closure</p> Signup and view all the answers

    What is the primary function of prostaglandins, leukotrienes, and histamine in wound healing?

    <p>To promote vasodilation</p> Signup and view all the answers

    Which of the following is a characteristic of chronic wounds?

    <p>Delayed healing rate</p> Signup and view all the answers

    What is the primary function of macrophages in the granulation tissue?

    <p>To phagocytose bacteria</p> Signup and view all the answers

    Which phase of wound healing is characterized by the proliferation of fibroblasts and the synthesis of collagen?

    <p>Proliferation</p> Signup and view all the answers

    What is the primary function of cytokines and growth factors in wound healing?

    <p>To stimulate cell proliferation and differentiation</p> Signup and view all the answers

    Which of the following is a systemic factor that can affect wound healing?

    <p>All of the above</p> Signup and view all the answers

    What is the primary goal of the remodelling phase of wound healing?

    <p>To restore tissue strength and function</p> Signup and view all the answers

    Which type of collagen is initially formed during the wound healing process?

    <p>Type III collagen</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser