MCQs of Oral Histology – Enamel

perikymata are the external surface manifestations of:

The percentage of inorganic matter in fully developed enamel is about

The enamel of the posterior teeth is thickest at:

Hunter Schreger band are:

Enamel tufts are:

Following is not an external manifestation of enamel

Ratio of diameter of enamel rods in the DEJ to the enamel surface is:

Blunt cell processes seen on the developing ameloblasts are celled as:

Interwining of the enamel rods at the cusp timps and the incisal edges of a tooth is called:

Incremental lines of retzius are seen in:

All are true regarding the enamel spindles except:

Ionic exchange between enamel surface and environment

Approximately how many enamel rods will be present in a maxillary molar?

All are true about the striae of retzius except:

Neonatal lines are found in all of the following except:

On microscopic examination enamel rods have:

Which of the following structures is not of ectodermal origin:

The formative cells of which of the following dental tissues disappear once tissue is formed

Which of the following tissues have no reparative capacity:

The enamel has no capacity of self repair because

The type of fibrous element in enamel is:

calcification in enamel starts at:

Specific gravity of enamel is:

Inorganic content of enamel is about:

Length of enamel rods is:

The diameter of the rod is:

Which of the following statement is correct

True about direction of enamel rods:

Thin leaf like structures that extend from enamel surface in to DEJ are:

Dentino enamel junction is:

Hertwig’s root sheath is formed from:

Chronological hypoplasia is:

Moth eaten appearance of of enamel is seen in:

Formation of dentin by odontoblasts begins in:

Which of the following is correct:

The striking difference between enamel and other mineralized tissues is

Shape of enamel rod is:

Enamel is laid down:

Ameloblasts is:

Synthesis of enamel matrix proteins occurs in the:

The small ridges, perikymata, seen on facial surfaces of canines are the result of:

Among the following the structure that is most calcified is:

Enamel spindles are formed by:

Neonatal line is also referred to as:

Incremental lines of Retzius appear

Nutritional supply of the ameloblasts during most of their life cycle is from the:

Enamel rods at the cervical area at the occlusal edge and incisal lip in permanent teeth are:

Metalloprotienases are used in which stage of the amelogenesis:

The thickness of prismless enamel in diciduous teeth is:

The class of low molecular weight calcium binding proteins seen predominantly in developing enamel are:

Gnarled enamel is seen in:

The key hole, pattern appearance in the cross section is feature of:

Neonatal lines are seen in:

The shallow furrows on the enamel surface, where stria of Retzius end are known as?

Which of these DOES NOT contain collagen

The average width of enamel rods is:

Maximum amount of phosphate is seen in:

Dark bonds that are present in enamel rods at intervals of 4 μms are:

Which of the following is correct about enamel crystals?

Enamel can act in a sense like a:

Non acidic, nonionic protein which helps in enamel mineralization