27 Questions
What is the primary concern in choosing a crown lengthening surgical procedure?
The need to leave a minimum of 3mm of keratinized marginal tissue
In crown lengthening, what is the minimum amount of keratinized tissue required to remain after anatomical crown exposure?
3mm
What type of incision is used in apically positioned flap crown lengthening?
Reverse bevel incision
What is the primary indication for gingivectomy crown lengthening?
Adequate zone of keratinized gingiva
What is the purpose of apically positioned flap crown lengthening?
To recontour the alveolar bone crest
What type of flap is raised in apically positioned flap crown lengthening?
Full-thickness mucoperiosteal flap
What is the primary contraindication for crown lengthening of a single tooth?
The esthetic zone
What is the primary indication for apically positioned flap crown lengthening?
Inadequate keratinized tissue
What is the purpose of crown lengthening?
To expose the anatomical crown
What is the primary goal of esthetic crown lengthening procedures?
To obtain esthetic harmony and ideal smile line
What is the primary cause of excessive gingival display?
Short clinical crowns
Which of the following procedures is NOT a type of esthetic crown lengthening procedure?
Ridge augmentation
What is the primary goal of interdental papilla reconstruction?
To improve aesthetics of the interdental area
What is the primary purpose of forced tooth eruption with fiberotomy?
To prevent crestal bone from following the root in a coronal direction
What is the primary indication for forced tooth eruption with fibrotomy?
Short clinical crowns
What is the primary advantage of apically positioned flap over gingivectomy?
Preservation of interdental papilla
What is the result of excessive gingival display crown lengthening without fiberotomy?
The entire attachment apparatus moves with the tooth
At what interval is fiberotomy typically performed?
7-10 day intervals
What is the primary complication of ridge augmentation?
Infection of the graft site
What is the purpose of bone recontouring in crown lengthening procedures?
To expose sound root structure
Which of the following is NOT a recommended reading material for esthetic crown lengthening procedures?
The Journal of Esthetic Dentistry
What is the primary goal of preventing post-extraction soft tissue collapse?
To prevent ridge defects
What is the indication for forced tooth eruption without fiberotomy?
For reducing pocket depth at sites with angular bony defects
What is the result of excessive gingival display crown lengthening with fiberotomy?
The crestal bone and gingival margin are retained at their pretreatment locations
What is the purpose of repositioning the flap apically to the level of the newly contoured bone?
To allow the tooth to erupt to the intended position
What is the outcome of forced tooth eruption when the tooth reaches the intended position?
Full-thickness flap and bone recontouring is performed to expose sound root structure
What is the significance of the bone and soft tissue level of adjacent teeth in forced tooth eruption?
It is unchanged for esthetic reasons
Learn about the process of crown lengthening, forced tooth eruption, and the role of periosteal sutures in dental surgery. Understand how the tooth is extruded and stabilized during the treatment.
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