Termination of skeletal maturity - Indicator

 # Which of the following bone indicates the termination of skeletal maturity?

A. Presence of Sesamoid

B. Appearance of pisiformis

C. Appearance of calcification of hook of hamate

D. Union of diaphysis and epiphysis on radius

The correct answer is D. Union of diaphysis and epiphysis on radius.

Some other important tips:

 * Absence of hamate and pisiform - Still 1 year for prepubertal growth spurt

* Presence of hamular process of the hamate, pisiform and sesamoid- Beginning of  growth spurt

* Initial ossification of  sesamoid - Peak pubertal growth spurt

* The epiphysis and diaphysis fusion/ ossification of sesamoid completed - Prepubertal growth spurt completed

* The epiphysis and diaphysis fusion on radius and ulna- Active growth completed

CLICK HERE FOR MORE MCQs

Fishman’s index is used in relation with:

 # Fishman’s index is used in relation with:

A. Population

B. Hand-wrist radiographs

C. Cephalograms 

D. Periodontal diseases

The correct answer is B. Hand-wrist radiographs.

The following are the most commonly used methods for determination of skeletal maturity through hand-wrist xrays: 

- Atlas method by Greulich and Pyle

- Bjork Grave and Brown method

- Singer's method of assessment

- Fishman's skeletal maturity indicators

- Hagg and Taranger method

CLICK HERE FOR MORE MCQs

Carpal radiograph is used for assessment of:

 # Carpal radiograph is used for assessment of:

A. Bone condition

B. Chronological age

C. Treatment plan

D. Skeletal maturation

The correct answer is: D. Skeletal Maturation.

There are different methods to assess the skeletal maturity of an indivudual which include:

1. Use of hand wrist radiographs

2. Evaluation of skeletal maturation using cervical vertebrae

3. Assessment of maturity by clinical and radiographic examination of different stages of tooth (Lower third molar)

Hand wrist radiograph is the most reliable among all these. 

CLICK HERE FOR MORE MCQs

Vestibuloplasty procedure

 # A vestibuloplasty procedure is performed by:

A. Reducing buccal bone from the alveolar ridge with a barrel bur and a handpiece

B. Apically repositioning the muscular and mucosal attachments of the mandible

C. Reflecting the gingiva and using Rongeurs to remove bone from the alveolar crest

D. Using a bone file to smooth rough bony projections

E. Grafting harvested iliac or rib bone onto the alveolar process

The correct answer is B. Apically repositioning the muscular and mucosal attachments of the mandible

Vestibuloplasty is a procedure performed to lengthen the residual ridge and deepen the oral vestibule.

A vestibuloplasty can only be achieved by relocating or repositioning the muscle attachments and mucous membrane covering it into a deeper or more apical position. 

Vestibuloplasties are also accompanied with the use of a mucosal graft or a skin graft. 

CLICK HERE FOR MORE MCQs