Dental Surgeries and Orthodontics

What is the primary characteristic of Class 1 invasive cervical resorption according to Heithersay classification?

Small invasive resorptive lesion near the cervical area with shallow penetration into dentin (correct)
Large invasive resorptive process that has extended beyond the coronal third of the root
Well-defined invasive resorptive lesion that has penetrated close to the coronal pulp chamber
Deep invasion of dentine by resorbing tissue extending into the radicular dentin

What is a common clinical feature of invasive cervical resorption in its early stages?

Visible pink spot on the tooth surface
Swelling and inflammation of the surrounding tissues
Asymptomatic (correct)
Severe pain and sensitivity

What is a radiographic characteristic of invasive cervical resorption?

A well-defined radiopaque lesion involving the pulp chamber
An irregular radiolucency involving the buccal, lingual or proximal surface of the tooth (correct)
A narrow radiolucent line along the root surface
A periapical lesion with a circular radiolucent area

What is NOT a common cause of invasive cervical resorption?

Dental caries (D) Signup and view all the answers

What can be said about the pulp vitality in invasive cervical resorption?

The pulp remains vital in most cases (D) Signup and view all the answers

What is the characteristic appearance of the defect radiographically in internal resorption?

A mottled or clouded appearance (A) Signup and view all the answers

What is the initial pulp status in internal resorption?

Vital pulp (A) Signup and view all the answers

What is the replacement material for the resorbed dentine in internal resorption?

Osteodentine (A) Signup and view all the answers

What is the characteristic radiographic feature that helps distinguish internal resorption from caries?

Smooth, sharply defined margins (A) Signup and view all the answers

What is the clinical feature that may be present on the crown if resorption takes place in the pulp chamber?

A pink spot (C) Signup and view all the answers

What is the main difference in radiographic appearance between internal and external resorption?

Smooth sharply defined margin in internal resorption (B) Signup and view all the answers

What is the purpose of using the shift technique in radiographic diagnosis of resorption?

To localize the lesion within the root (C) Signup and view all the answers

What is a characteristic of internal resorption that affects the maxillary lateral incisor?

It remains undetected and may appear incidentally on a radiograph (D) Signup and view all the answers

What is the typical clinical feature of cervical resorption that can be confused with internal resorption?

Red inflamed gingiva with bleeding (D) Signup and view all the answers

What is the primary benefit of using CBCT in the diagnosis of resorption?

To differentiate between internal and external resorption (B) Signup and view all the answers

What is a complication of non-surgical treatment of internal resorption?

All of the above (D) Signup and view all the answers

What is the typical pulp condition associated with internal resorption in its early stages?

Vital pulp (D) Signup and view all the answers

What is the ideal treatment option for internal resorption that does not perforate the root canal?

Non-surgical RCT with lateral condensation technique (B) Signup and view all the answers

What is a challenge in treating internal resorption with a vital pulp?

Standardized root canal treatment is not possible (C) Signup and view all the answers

What can be used to vasoconstrictor in internal resorption treatment?

Acoustic Streaming (A) Signup and view all the answers

What type of resorption is characterized by a negative response in the apical and lateral aspects?

External inflammatory resorption (D) Signup and view all the answers

What is the primary objective of diagnosing root resorption clinically and radiographically?

To develop a treatment plan (A) Signup and view all the answers

Which of the following texts is not a recommended reading material for understanding root resorption?

Dental anatomy, 4th edition (D) Signup and view all the answers

What is the primary difference between internal and external resorption?

Location of resorption (B) Signup and view all the answers

Which of the following is not a objective of this lecture?

To discuss the uses of dental implants (C) Signup and view all the answers

What is the primary cause of internal root resorption?

Loss of predentine and odontoblast layer (B) Signup and view all the answers

What is a characteristic of transient internal resorption?

Self-limiting and repaired by itself with cementum-like tissue (A) Signup and view all the answers

Which of the following is NOT a factor that may injure the protective predentine and odontoblast cells?

Regular oral hygiene practices (C) Signup and view all the answers

What is the characteristic of the canal coronal to the resorption in internal inflammatory root resorption?

It is necrotic and invaded by microbes (D) Signup and view all the answers

What is the requirement for progressive internal resorption?

Continuous stimulation by infection (A) Signup and view all the answers

What is the primary function of pre-dentine and odontoblasts in the root canal?

To protect the root surface from resorption (C) Signup and view all the answers

What is the result of the mechanism of resorption in dental hard tissues?

Removal of inorganic salts and preservation of organic material (B) Signup and view all the answers

What is the primary difference between physiological and pathological root resorption?

Type of tooth affected (A) Signup and view all the answers

What is the role of macrophages in the mechanism of root resorption?

To carry away inorganic salts (B) Signup and view all the answers

What is the term for the multinucleated giant cells responsible for resorbing dental hard tissues?

Clasts (C) Signup and view all the answers

What is the primary mechanism of protection of the root surface in permanent teeth?

Through the presence of pre-cementum and cementoblasts (D) Signup and view all the answers

What is the characteristic of root resorption that distinguishes it from other physiological processes?

Involvement of multinucleated giant cells (D) Signup and view all the answers

What is the role of pre-cementum in the protection of the root surface?

To prevent resorption from occurring (D) Signup and view all the answers

What is the result of the action of dentinoclasts on dental hard tissues?

Loss of organic material and release of inorganic salts (B) Signup and view all the answers