Practice Test

📝 Explanation:

Midline diastema is a common condition involving a gap between the two upper front teeth.

Various orthodontic techniques and appliances can be used to close this space, which typically involves applying controlled force to move the teeth closer together.

(a) Lingual bow with inter tooth traction: A lingual bow is an orthodontic appliance that can be used with traction (force) between teeth to close a diastema.

(b) Hawley's appliance with finger springs: A Hawley appliance is a type of removable retainer often used in orthodontics.

It can be modified with finger springs to apply gentle pressure and move teeth, including closing a diastema.

(c) Bonding tooth and inter tooth elastics: Bonding brackets or buttons to the teeth and using intermaxillary elastics (rubber bands) is a standard method to apply force and close gaps.

(d) Use of steel ligature directly on tooth: Applying a steel ligature wire directly around a tooth to move it would likely cause uncontrolled tilting of the tooth and potential damage to the tooth and surrounding tissues, rather than a proper, controlled correction of the diastema.It is not a standard or safe method for this purpose.

📝 Explanation:

A tableau, which involves a group of motionless figures representing a scene, is a form of social drama or role-playing. It is a group approach where the audience can take an active part. The session is typically followed by a discussion of the problem and potential solutions.

Tableau includes a group of models or motionless figures representing a scene from a story or from history: Tableau is used in Role playing or social drama among the options given.

Role playing sociodrama.
One of the group approaches in which the audience should take active part by suggesting alternative solutions and even by taking part in the drama
The size of group should be about 25.
Puppet show used in villages is a type of socio-drama
The drama is followed by a discussion of the probleen and detiving solutions
Useful for children's health education

📝 Explanation:

• Periodontal probe:

  • A calibrated instrument marked in millimeters.

  • Used like a miniature ruler to measure intraoral structures such as sulcus depth, attachment levels, and distances.

  • Alone, it can measure vertical dimensions but may not give the most accurate functional height of the floor of the mouth.

• Special tray:

  • Custom-made tray used in prosthodontics for impression making.

  • Helps record functional anatomy, including the floor of the mouth.

  • Alone, it provides a functional impression but lacks precise millimeter calibration.

• Combination (periodontal probe + special tray):

  • The probe provides precise millimeter measurement.

  • The tray ensures functional accuracy by recording the mouth floor in relation to denture-bearing areas.

  • Together, they give the most accurate measurement of the floor of the mouth height, which is crucial in complete denture fabrication.