MDS PREP
Most of the microorganisms present a two day old dental plaque will be
1. lactobacilli
2. fusiform bacilli
3. vibrios
4. cocci
Periodontics
Answer: 4
In the early stages of dental plaque formation, particularly within the first
few days, the predominant microorganisms are typically cocci, especially Streptococcus species.
These bacteria are among the first to colonize the tooth surface after a
cleaning, forming a biofilm.
Lactobacilli are more commonly associated with mature
plaque and caries development, as they thrive in acidic environments.
Fusiform bacilli and vibrios are more
commonly found in later stages of plaque development or in specific
conditions, such as periodontal disease.
Thus, in a two-day-old dental plaque, the majority of microorganisms will
indeed be cocci
Treatment for ANUG in initial stages without systemic involvement is
1. Metronidazole and penicillin therapy
2. Gingivectomy and gingivoplasty
3. Both A and B
4. None of the above
Periodontics
Answer: 4
Treatment for ANUG in initial stages without systemic involvement is none of the above; typically, it involves debridement and possibly antibiotics.
A loosely adherent yellowish-white mass of cellular debris and microorganisms
on the teeth is termed
1. oral deposit
2. materia alba
3. dental plaque
4. salivary pellicle
Periodontics Answer: 2
Milky white, soft, and visible to the naked eye, Lacks the organized structure of dental plaquecomposed of Food debris, bacteria, dead tissue cells, leukocytes, and salivary proteins
Finger-on-finger rest is used for scaling on
1. Maxillary posterior region
2. Mandibular posterior region
3. Mandibular anterior region
4. Maxillary anterior region
Periodontics
Answer: 1
Finger-on-finger rest is used for scaling in the maxillary posterior region.
The term gingival ablation indicates
1) Gingival recession due to faulty tooth brushing
2) Gingival recession accentuated by prominent palatal root
3) Gingival recession due to friction from hard root
4) Gingival recession due to friction from soft tissue
Periodontics
Answer: 4
Gingival ablation is a surgical procedure that involves the removal of a portion of the gingival tissue. It is often used to treat conditions such as excessive gingival overgrowth or to improve the health of the gum tissue. Gingival recession due to friction from soft tissue, such as the tongue or cheek, is one possible outcome of this procedure. It does not inherently involve the removal of tissue due to tooth brushing, prominent roots, or hard tissue friction.
Laboratory test of ANUG is
1. Complement fixation
2. Dark field examination
3. Tissue culture
4. Animal inoculation
Periodontics
Answer: 2
Laboratory tests for ANUG typically involve dark field examination.
Root conditioning with citric acid helps in
1. Removal of endotoxin
2. Removal of smear layer
3. Regeneration of bone
4. All the above
Periodontics
Answer: 4
Root conditioning with citric acid helps in the removal of endotoxin and smear layer.
"Tuberous sclerosis" is seen in
1. Vascular fibroma
2. Leprosy
3. Tuberculosis
4. Bone disorders
Tuberous sclerosis is associated with vascular fibroma.