92 Questions
Which of the following is a local etiology of impacted teeth?
Premature primary tooth loss/extraction
What is the most common impacted tooth?
Mandibular third molar
Which condition is characterized by a congenital fissure in the midline of the palate?
Cleft palate
What is the definition of tooth impaction?
Condition comprising tooth being partially/completely unerupted and malpositioned against another tooth, bone, or soft tissue such that adequate eruption is unlikely
What technique is used around the neck of teeth during surgery?
Reverse bevel technique
What is reflected in full thickness during surgery?
Mucoperiosteum
What is used to hold back the flap lightly against the bone?
Minnesota retractor
What is the importance of having a mental picture of during surgery?
Embedded tooth
What are the advantages of sectioning technique in impacted tooth removal?
Less trauma to surrounding tissues
What is important when using elevators to remove impacted teeth?
Applying appropriate force
What are different impacted tooth positions requiring unique techniques for removing?
Mesioangular, horizontal, vertical, and distoangular impactions
What specific steps are included in the removal phase concerning impacted maxillary third molars?
Luxation and elevation
What is important post-surgery?
Importance of irrigation, debridement, and proper closure of the wound
What is included in postoperative instructions?
Rest, diet, oral hygiene, and managing bleeding
What should be managed post-surgery?
Managing swelling, stiffness, bruising, and medications
What are the precautions "do nots" for postoperative care?
Using straws and smoking
What is the definition of cleidocranial dysostosis?
Partial or complete absence of clavicles
What is the most common systemic etiology for delayed primary exfoliation and unerupted permanent teeth?
Achondroplasia
What is the characteristic manifestation of progeria?
Wrinkles and gray hair
What is the local etiology of impacted teeth related to irregular position and pressure on adjacent teeth?
Bone density of overlying/surrounding bone
Which condition is characterized by a congenital fissure in the midline of the palate?
Cleft palate
What is the most common impacted tooth?
Mandibular second molar
What is the systemic etiology characterized by steeple head or cone head?
Oxycephaly
What is the local etiology of impacted teeth related to continued chronic inflammation causing dense overlying mucous membrane?
Bone density of overlying/surrounding bone
What is the characteristic manifestation of achondroplasia?
Dwarfism
What is the local etiology of impacted teeth related to underdeveloped jaw leading to crowding?
Continued chronic inflammation causing dense overlying mucous membrane
What is the characteristic manifestation of cleidocranial dysostosis?
Defective ossification of the clavicles
What is the local etiology of impacted teeth related to premature primary tooth loss/extraction?
Underdeveloped jaw leading to crowding
What is the risk associated with palatal vs labial or buccal surgery for impacted teeth?
Increased risk of palatal surgery due to proximity to vital structures
What is the common cause of operculitis, an infection of the overlying gingival flap?
Streptococci, staphylococci, and Vincent’s spirochetes
What is the primary reason for prioritizing impacted tooth removal before any restoration?
Risk of caries
What is the consequence of impacted teeth becoming stuck in the alveolar process and retaining the associated follicular sac?
Formation of dentigerous cyst
What is the common pathological condition associated with unerupted mandibular third molars?
Ameloblastoma
What is the primary reason for retaining impacted teeth if completely covered with bone?
To avoid ridge destruction
What is the potential consequence of impacted third molars causing anterior force?
Separation of contact points and subsequent crowding of mandibular anteriors
What is the common cause of pain associated with impacted third molars?
Root resorption
What is the primary reason for removing an impacted tooth at the bone fracture area?
To facilitate fracture reduction
What is the contraindication for impacted tooth removal in an older patient with sufficient overlying bone?
Asymptomatic impacted tooth if over 40 years old with sufficient overlying bone and no disease
What is the primary reason for not removing an impacted tooth in a patient with poor systemic health?
Potential for excessive damage to adjacent structures
What is the primary reason for not removing an impacted tooth near nerves, teeth, or bridges if the future of the second molar is in doubt?
Potential for excessive damage to adjacent structures
Is cleidocranial dysostosis characterized by delayed primary exfoliation and unerupted permanent teeth?
True
Does achondroplasia result in hereditary congenital disturbance causing dwarfism?
True
Is cleft palate a deformity manifested by a congenital fissure in the midline of the palate?
True
Does impacted mandibular third molar have the highest incidence among all impacted teeth?
True
Pericoronitis is the infection of the overlying gingival flap surrounding the crown of a partially impacted tooth.
True
Dentigerous cysts are commonly associated with unerupted mandibular third molars.
True
Impacted third molars can cause separation of contact points and subsequent crowding of mandibular anterior teeth.
True
Older patients with asymptomatic impacted teeth over 40 years old with sufficient overlying bone and no disease may not need impacted tooth removal.
True
Pain associated with impacted third molars can result from pressure on the inferior alveolar nerve.
True
Impacted teeth stuck in the alveolar process can retain the associated follicular sac, which can lead to cystic degeneration.
True
Caries is a common consequence of food impaction between the molar and a partially erupted tooth.
True
Impacted third molars should be removed if they impede fracture reduction and if the fragments are displaced enough to facilitate removal.
True
Is the definition of tooth impaction the condition comprising tooth being partially/completely unerupted and malpositioned against another tooth, bone, or soft tissue such that adequate eruption is unlikely?
True
Does cleidocranial dysostosis result in delayed primary exfoliation and unerupted permanent teeth?
True
Is cleft palate a deformity manifested by a congenital fissure in the midline of the palate?
True
Is the most common impacted tooth the mandibular third molar?
False
Is it necessary to remove impacted teeth if they cause considerable ridge destruction?
False
Is it practical to restore an impacted tooth with abnormal position, especially on the distal side?
False
Does the retention of impacted teeth in the edentulous ridge always require removal?
False
Is it common for impacted third molars to cause separation of contact points and subsequent crowding of mandibular anterior teeth?
True
Is it common for impacted teeth to lead to separation of contact points and subsequent crowding of mandibular anterior teeth?
True
Is it common for impacted third molars to cause separation of contact points and subsequent crowding of mandibular anterior teeth?
True
Is it important to prioritize impacted tooth removal before any restoration?
True
Is it common for impacted third molars to cause separation of contact points and subsequent crowding of mandibular anterior teeth?
True
Pressure from impacted 3rd upon the inferior alveolar nerve causes ________
pain
Always remove impacted teeth unless completely covered with bone; cause considerable ridge ________
destruction
Impacted 3rd molars cause anterior force, leading to separation of contact points and subsequent ________ of Mandibular anteriors
crowding
Impacted teeth stuck in the alveolar process retain the associated follicular sac, which can lead to ________ degeneration
cystic
Risk of benign and malignant neoplasms of soft tissue and one at 3rd molar region is a consequence of ________ teeth
impacted
Removal of impacted teeth after restoration puts existing restoration at risk for ________
damage
Cyst formation secondary to molar impaction is ________
high
Pericoronitis, caries, root resorption, pdl disease can cause ________
pain
Impacted teeth stuck in the alveolar process retain the associated follicular sac, which can lead to cystic ________
degeneration
Impacted teeth stuck in the alveolar process retain the associated follicular sac, which can lead to ________ cysts
dentigerous
Impacted 3rds cause anterior force, leading to separation of contact points and subsequent ________ of Mandibular anteriors
crowding
Impacted teeth stuck in the alveolar process retain the associated follicular sac, which can lead to cystic degeneration and ________
neoplasm
An impacted tooth is defined as a tooth that is partially or completely ______ and malpositioned against another tooth, bone, or soft tissue, making adequate eruption unlikely
unerupted
The local etiology of impacted teeth includes irregular position and pressure on adjacent tooth, bone density of overlying/surrounding bone, and continued chronic inflammation causing dense overlying ______
mucous membrane
The incidence of impacted teeth from most common to least common is mandibular third molar, maxillary third molar, maxillary ______ molar
canine
Systemic etiologies for impacted teeth include cleidocranial dysostosis, achondroplasia, and ______
cleft palate
Achondroplasia is a hereditary congenital disturbance characterized by ______
dwarfism
The condition oxycephaly is characterized by a steeple head, also known as a ______ head
cone
The condition progeria is characterized by premature old age, with characteristics such as no facial or pubic hair, wrinkles, gray hair, and the visage, attitude, manners of old ______
age
The primary reason for retaining impacted teeth if completely covered with bone is to prevent ______ degeneration
cystic
Impacted teeth stuck in the alveolar process can retain the associated follicular sac, which can lead to ______ degeneration
cystic
Cleidocranial dysostosis is characterized by ______ primary exfoliation and unerupted permanent teeth
delayed
Pain associated with impacted third molars can result from pressure on the inferior alveolar ______
nerve
Impacted third molars should be removed if they impede fracture reduction and if the fragments are displaced enough to facilitate ______
removal
What is the ideal time for the removal of impacted teeth?
When ⅓ of the roots are already formed and before they are two thirds formed
Which factor complicates the removal of impacted teeth related to the appearance of roots?
Curvature of roots
What is the primary advantage of early removal of impacted teeth?
Quicker recovery
Which condition is not listed as a manifestation of skeletal disease complicating the removal of impacted teeth?
Acromegaly
Study Notes
Oral Surgery and Postoperative Care
- Reverse bevel technique used around neck of teeth during surgery
- Full thickness of mucoperiosteum to be reflected during surgery
- Use of Minnesota retractor to hold back the flap lightly against the bone
- Importance of having a mental picture of the embedded tooth within the bone
- Advantages of tooth sectioning in impacted tooth removal
- Importance of appropriate force when using elevators to remove impacted teeth
- Different techniques for removing mesioangular, horizontal, vertical, and distoangular impactions
- Specific steps for removing impacted maxillary third molars
- Importance of irrigation, debridement, and proper closure of the wound post-surgery
- Postoperative instructions including rest, diet, oral hygiene, and managing bleeding
- Managing swelling, stiffness, bruising, and medications post-surgery
- Precautions and recommendations for postoperative care, including avoiding smoking and using straws, and the use of analgesics and antibiotics
Test your knowledge of oral surgery and postoperative care with this quiz covering techniques for impacted tooth removal, specific steps for removing impacted maxillary third molars, and important postoperative instructions and care.
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