Root Canal Treatment and Nonvital Bleaching

What is the primary reason for sealing the root-canal filling material with a base material?

To prevent the bleaching agent from penetrating into the periodontal space or root canal

What is the primary cause of tooth discoloration?

Hemolysis of erythrocytes in the dentin tubules

Which of the following is NOT a common cause of tooth discoloration in non-vital teeth?

Tooth decay

What is a crucial requirement for internal tooth bleaching?

A sealed root-canal filling Signup and view all the answers

What is the primary reason why non-vital teeth may undergo internal staining after root canal treatment?

The pulp chamber and root canal system are sealed off from the bloodstream Signup and view all the answers

What is the primary indication for non-vital bleaching?

Discolored non-vital teeth Signup and view all the answers

Which of the following is a key factor in the effectiveness of non-vital bleaching?

Precise removal of all restorative materials from the access cavity Signup and view all the answers

Which of the following bleaching agents is NOT commonly used in internal tooth bleaching?

Sodium hypochlorite Signup and view all the answers

What should be replaced prior to bleaching, according to the text?

Insufficient coronal restorations Signup and view all the answers

What is the name of the internal tooth bleaching technique first described by Spasser in 1961?

Walking-bleach technique Signup and view all the answers

What is the purpose of internal bleaching in non-vital teeth?

To improve the esthetic appearance of the tooth Signup and view all the answers

What is a contraindication for internal bleaching?

The presence of a fiber post in the root canal Signup and view all the answers

What is the purpose of a waiting period in cases of radiologically detectable periapical radiolucency?

To monitor the progression of the lesion Signup and view all the answers

What is a consequence of pulp necrosis in teeth?

Tooth discoloration Signup and view all the answers

What is the primary reason why non-vital bleaching is most effective on teeth with stable restorations?

The restorations do not respond to bleaching agents Signup and view all the answers

Why is patient compliance crucial in non-vital bleaching?

To maintain good oral hygiene practices during and after treatment Signup and view all the answers

Why is it necessary to cover the cement used to close perforations with a base?

To prevent the bleaching agent from penetrating into the periodontal space Signup and view all the answers

What is the result of the oxidative reactions of bleaching agents?

Reversion of the chromatic change Signup and view all the answers

What is a characteristic of internal tooth bleaching?

Minimally invasive and conservative Signup and view all the answers

What is the primary goal of internal tooth bleaching?

To improve the aesthetics of the smile Signup and view all the answers

What is the significance of dentin in internal tooth bleaching?

Dentin must be cleaned to facilitate diffusion of the bleaching agent Signup and view all the answers

What is the primary focus of aesthetics in dentistry?

Psychosocial impact on an individual's self-perception Signup and view all the answers

What is the main difference between vital and non-vital bleaching?

Location of application Signup and view all the answers

What is a common indication for non-vital tooth bleaching?

Discoloration after root canal treatment Signup and view all the answers

Which of the following is a contraindication for non-vital tooth bleaching?

Periodontal disease Signup and view all the answers

What is the primary cause of non-vital tooth discoloration?

Blood decomposition in the pulp chamber Signup and view all the answers

What is the purpose of using GI or RMGI in non-vital tooth bleaching?

To prevent leakage of the bleaching material Signup and view all the answers

What is the primary goal of walking bleach technique?

To facilitate the bleaching process Signup and view all the answers

Which of the following is a complication of non-vital tooth bleaching?

Leakage of the bleaching material Signup and view all the answers

What is the term for the lightening of the color of a tooth through the application of a chemical agent?

Bleaching Signup and view all the answers

Why do teeth that have undergone root canal therapy often darken?

Because the pulp chamber and root canal system are sealed off from the bloodstream Signup and view all the answers

What is essential for nonvital bleaching to be effective on teeth with stable restorations?

The restorations must match the shade of the surrounding natural teeth Signup and view all the answers

Why is patient desire for aesthetics important in nonvital bleaching?

Because it is a suitable treatment option when patients desire an improvement in the aesthetics of their smile Signup and view all the answers

What is crucial for patient compliance in nonvital bleaching?

Good oral hygiene practices during and after the treatment Signup and view all the answers

What is the most important factor in the effectiveness of internal bleaching?

Precise removal of all restorative materials from the access cavity without additional dentin elimination Signup and view all the answers

Why is it essential to clean the dentin in internal bleaching?

To facilitate diffusion of the bleaching agent through the dentinal tubules Signup and view all the answers

What happens when a fiber post is cemented in the root canal and the pulp chamber is filled with composite resin?

Removing the restorative material and post can compromise the amount of sound dentin Signup and view all the answers

What is a contraindication for internal bleaching?

Presence of restorative materials in the access cavity Signup and view all the answers

Why is it necessary to remove all restorative materials from the access cavity?

To facilitate diffusion of the bleaching agent Signup and view all the answers

What is the primary reason for patient desire for aesthetics in nonvital bleaching?

To improve the aesthetics of their smile Signup and view all the answers

Root Canal Treatment and Nonvital Bleaching

Questions and Answers

What is the primary reason for sealing the root-canal filling material with a base material?

What is the primary cause of tooth discoloration?

Which of the following is NOT a common cause of tooth discoloration in non-vital teeth?

What is a crucial requirement for internal tooth bleaching?

What is the primary reason why non-vital teeth may undergo internal staining after root canal treatment?

What is the primary indication for non-vital bleaching?

Which of the following is a key factor in the effectiveness of non-vital bleaching?

Which of the following bleaching agents is NOT commonly used in internal tooth bleaching?

What should be replaced prior to bleaching, according to the text?

What is the name of the internal tooth bleaching technique first described by Spasser in 1961?

What is the purpose of internal bleaching in non-vital teeth?

What is a contraindication for internal bleaching?

What is the purpose of a waiting period in cases of radiologically detectable periapical radiolucency?

What is a consequence of pulp necrosis in teeth?

What is the primary reason why non-vital bleaching is most effective on teeth with stable restorations?

Why is patient compliance crucial in non-vital bleaching?

Why is it necessary to cover the cement used to close perforations with a base?

What is the result of the oxidative reactions of bleaching agents?

What is a characteristic of internal tooth bleaching?

What is the primary goal of internal tooth bleaching?

What is the significance of dentin in internal tooth bleaching?

What is the primary focus of aesthetics in dentistry?

What is the main difference between vital and non-vital bleaching?

What is a common indication for non-vital tooth bleaching?

Which of the following is a contraindication for non-vital tooth bleaching?

What is the primary cause of non-vital tooth discoloration?

What is the purpose of using GI or RMGI in non-vital tooth bleaching?

What is the primary goal of walking bleach technique?

Which of the following is a complication of non-vital tooth bleaching?

What is the term for the lightening of the color of a tooth through the application of a chemical agent?

Why do teeth that have undergone root canal therapy often darken?

What is essential for nonvital bleaching to be effective on teeth with stable restorations?

Why is patient desire for aesthetics important in nonvital bleaching?

What is crucial for patient compliance in nonvital bleaching?

What is the most important factor in the effectiveness of internal bleaching?

Why is it essential to clean the dentin in internal bleaching?

What happens when a fiber post is cemented in the root canal and the pulp chamber is filled with composite resin?

What is a contraindication for internal bleaching?

Why is it necessary to remove all restorative materials from the access cavity?

What is the primary reason for patient desire for aesthetics in nonvital bleaching?

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