MDS PREP
All are true of PMA index except
1. Measures severity of gingivitis and periodontitis
2. Facial surfaces of 5, 8, 9, 12, 21, 25, 28 are considered
3. Each tooth is divided into 3 units
4. Maximum total score measured is 11
Pedodontics
Answer: 1
The PMA index measures the severity of gingivitis and periodontitis.
All of the following are contraindications for root planing EXCEPT
1. Deficient or overhanging margins of amalgam restorations
2. Erosion and/or abrasion
3. Recession
4. Root caries
Pedodontics
Answer: 2
Erosion and/or abrasion are not contraindications for root planing.
Occlusal guard (night guard0 or maxillary splint is given in bruxism to
1. Prevent bruxism
2. Reduce pocket formation
3. Reduce traumatic forces on teeth
4. Prevent elongaton of teeth
Pedodontics
Answer: 3
The occlusal guard (night guard) is given in bruxism to reduce traumatic forces on teeth.
The major growth sites in mandible are:
1.Anterior surface of ramus
2.Condylar process
3.Anterior part of chin
4. Posterior surface of ramus:
1) 1,2,3
2) 2,4
3) 2,3,4
4) 2,3
Pedodontics Answer: 2
•In two ways the overall pattern of growth of the mandible can be represented .It will depend on the frame of reference if both are correct. The chin moves downward and forward if the cranium is the reference area.
On the other hand, it becomes apparent that the principal sites of growth of the mandible are the posterior surface of the ramus and the condylar and coronoid processes if data from vital staining experiments are examined. Along the anterior part of the mandible there is little change
• The chin is almost inactive as a growth site. As the actual growth occurs at the mandibular condyle and along the posterior surface of the ramus it is translated downward and forward. By periosteal apposition of bone on its posterior surface the body of the mandible grows longer , at the condyle accompanied by surface remodeling while the ramus grows higher by endochondral replacement
• Conceptually,wiht is correct to view the mandible as being translated downward and forward,though at the same time it increases in size by growing upward and backward. As the bone moves downward the translation occurs largely. As the bone moves downward and forward along with the soft tissues in which it is embedded the translation occurs largely
Gingival clefts are caused by
1. Trauma from occlusion
2. Faulty brushing technique
3. Normal frenal pull
4. Improper use of floss
Pedodontics
Answer: 1
Gingival clefts are caused by trauma from occlusion.
Undermining resorption occuring from within marrow spaces towards PD ligament is found
1. Bone covering unerupted tooth
2. Bone due to hormonal changes
3. Due to necrosis of bone on compression side as a result of occlusal trauma
4. All of the above
Pedodontics
Answer: 3
Undermining resorption occurs due to necrosis of bone on the compression side as a result of occlusal trauma.
The Russell periodontal index is calculated by
1. Adding all the tooth scores and dividing the number of teeth examined
2. Adding all the tooth scores and multiplying by the number of teeth examined
3. Adding all the tooth scored and dividing by 32
4. None of the above
Pedodontics
Answer: 1
The Russell periodontal index is calculated by adding all the tooth scores and dividing by the number of teeth examined.
The diameter of the tip of a periodontal probe is
1. 0.25 mm
2. 0.75 mm
3. 0.5 mm
4. 1 mm
Pedodontics
Answer: 3
The diameter of the tip of a periodontal probe is 0.5 mm.