A 5 year old child presents with chronic bed wetting and bilateral loose first molars. His mother says that he wants to drink water several times during night. Which of the following is the most likely diagnosis?

 # A 5 year old child presents with chronic bed wetting and bilateral loose first molars. His mother says that he wants to drink water several times during night. Which of the following is the most likely diagnosis?

A. Hand Schuller Christian disease

B. Marble bone disease

C. Nieman Pick disease

D. Polyostotic fibrous dysplasia

The correct answer is A. Hand Schuller Christian disease. 

Based on the given symptoms, the most likely diagnosis is option A, Hand Schuller Christian disease.

Hand-Schuller-Christian disease (HSC) is a rare type of Langerhans cell histiocytosis, which is characterized by the infiltration and proliferation of Langerhans cells in various tissues of the body. It usually affects children under the age of 5.

The chronic bedwetting and bilateral loose first molars in the child are indicative of bone involvement, which is a common feature of HSC. Additionally, the child's frequent need to drink water during the night may be due to the involvement of the pituitary gland, which can cause diabetes insipidus.

Marble bone disease (option B) and polyostotic fibrous dysplasia (option D) are genetic conditions that affect bone development and are not associated with bedwetting or excessive thirst.

Nieman-Pick disease (option C) is a genetic disorder that affects lipid metabolism and is not associated with the symptoms described in the scenario.

The position of the upper occlusal rim in the articulator is adjusted by : Loksewa Aayog 2079

# The position of the upper occlusal rim in the articulator is adjusted by :

(A) arbitrary means 

(B) using face-bow 

(C) visual examination 

(D) adjusting the incisal pin 

The correct answer is B. Using face bow.

The position of the upper occlusal rim in the articulator is adjusted by using a face-bow. A face-bow is a dental instrument that is used to transfer the position of the patient's maxillary arch to the articulator. The face-bow records the position of the maxilla in relation to the patient's hinge axis and transfers it to the articulator. This ensures that the upper model is mounted in the same position in the articulator as it is in the patient's mouth, allowing for accurate and precise restorations.

(A) Arbitrary means, (C) visual examination, and (D) adjusting the incisal pin are not accurate methods for adjusting the position of the upper occlusal rim in the articulator.

Kennedy classification is determined by: 2079 Lok sewa aayog

# Kennedy classification is determined by:

(A) the most anterior tooth missing 

(B) the first tooth to be lost  

(C) the largest tooth in the space 

(D) the most posterior tooth missing 

The correct answer is D. the most posterior tooth missing. 

Kennedy classification is determined by the most posterior tooth missing on both sides of the arch. Therefore, the correct option is (D) the most posterior tooth missing.

The Kennedy classification system is used to classify partially edentulous arches (i.e., arches with missing teeth) for the purpose of designing removable partial dentures. The classification is based on the location and extent of the edentulous spaces, and it takes into account the position of the remaining natural teeth and their strategic importance in supporting the prosthesis. The classification has four main categories (Class I, II, III, and IV), each of which is further divided into subcategories based on the specific edentulous spaces present in the arch.

The objective of full mouth rehabilitation is:

# The objective of full mouth rehabilitation is:

(A) to treat periodontal conditions 

(B) to minimize undue destructive stress to the tissues 

(C) to replace lost teeth 

(D) to bring in proper occlusion 

The correct answer is D. To bring in proper occlusion.

The objective of full mouth rehabilitation is to bring in proper occlusion, which means achieving a balanced and stable relationship between the upper and lower teeth and the temporomandibular joints (TMJs). Therefore, the correct option is (D) to bring in proper occlusion.

While treating periodontal conditions, minimizing undue destructive stress to the tissues, and replacing lost teeth may be important components of a full mouth rehabilitation plan, the ultimate goal is to achieve proper occlusion.