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136

Oral Biology Preparation (Pr.Ast. Muy Say )

 

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1)

The taste sensations appear to be located from the parts of:

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2)

Most of the hard palate and all of the soft palate from the:

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3)

The probable reasons for a high incidence of dental caries in the teenage population relates most directly to:

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4)

During tooth eruption into the oral cavity, what happens to the epithelial covering of the enamel:

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5)

The following are all derived from the stomodeal ectoderm such as:

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6)

Shedding is predominantly the:

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7)

The following is component of the enamel organ except:

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8)

Hertwig’s root sheath consists of:

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9)

If Hertwig’s epithelial root sheath does not disintegrate:

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10)

The cranial nerve supplies to muscles of mastication is:

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11)

One of the following indicates the major components of a tooth germ:

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12)

The bud stage of tooth development occurs at:

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13)

Fluorosis is caused by:

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14)

Taste Buds are located:

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15)

All of the following statements about the eruption of a permanent tooth and the exfoliation of its predecessor are true, except:

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16)

One of the following is true about ankylosis:

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17)

Initiation of caries by Streptococcus mutans is by the production of the:

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18)

The following Which contain blood vessels is:

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19)

A unilateral cleft lip is formed when:

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20)

After fertilization of ovum series of cell division give rise to an egg cell mass called:

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21)

In humans, which branchial arch rudimentary is:

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22)

Third stage of deglutition is:

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23)

The malleus of inner ear originates from:

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24)

All of the muscles mastication is involved in closing the mandible except:

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25)

One of the following occurs during the pre-eruptive phase of a tooth:

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26)

A layer of cells that seems to be essential to enamel formation but do actually secrete the enamel except:

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27)

Facial swellings refer to:

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28) The origin of enamel is:

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29)

The dietary carbohydrate most likely involved in etiology of dental caries is:

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30)

When a tooth first erupts into the oral cavity, the attachment epithelial cuff of epithelium derived from:

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31)

The tooth in permanent dentition is the most susceptible to dental caries is:

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32)

The Hertwing’s epithelial root sheath is composed of:

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33)

One of muscles of mastication arise from the zygomatic arch and inserts on ramus of the mandible is:

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34)

All of the following is derived from the enamel organ except:

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35)

The 3 stages of Deglutition are:

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36)

Another term for the deglutition of food is:

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37)

Oral foci of Miller’s are seen in:

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38)

Dental lamina is formed when:

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39)

The apposition stage of tooth development begins:

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40)

The cell rests of Malassez are derivatives of:

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41)

Primordium for the permanent dentition appears as an extension of dental lamina into the ectomesenchym at:

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42)

The term for a fertilized egg from conception until the end of two months development:

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43)

Concerning teratogens and their effect on fetal development:

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44)

By the 6th week of tooth development, the oral epithelium is:

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45)

Deglutition problem can lead to:

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46)

The little bumps can see on someone’s tongue are:

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47)

Secondary palate is:

1st branchial arch

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48)

All the statement about epithelial diaphragm except:

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49)

If the process of morphogenesis is disturbed:

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50)

The region where the inner and outer enamel epithelium meets at the rim of the enamel organ is known as:

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51)

The reduced enamel epithelium is derived from:

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52)

One of the following is associated with an erupted tooth:

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53)

Minor salivary glands are found throughout the mouth:

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54)

The mesenchymal cells lying adjacent to the inner enamel epithelium:

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55)

The secretions of salivary glands are:

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56)

All of the following is true of parotid glands, except:

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57)

All of the following is the ectodermal in origin, except:

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58)

Concerning cleft lips and cleft palates:

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59)

In human’s fertilization normally occurs in:

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60)

Tongue begins to develop at:

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61)

Concerning the tongue:

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62)

The extrinsic muscles of the tongue:

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63)

The stratum intermedium:

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64)

Advanced bell stage of tooth development refers to:

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65)

The cap stage occurs between the:

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66)

All the statement below is true about the classification of taste, except:

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67)

The major component of dental plaque is:

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68)

During tooth eruption, the permanent successors of the primary teeth move occlusal and:

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69)

In a developing tooth, if Hertwig’s sheath and the epithelial diaphragm were failed to form, the resulting tooth would exhibit:

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70)

Initiation of dental caries depends on:

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71)

Taste bud is:

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72)

Formation of the nose includes:

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73)

The medial pterygoid follows the same angle as masseter arising from the medial pterygoid plate, where does it attach on the mandible at:

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74)

The last hard dental tissue to be deposited is:

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75)

Each taste bud consists of:

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76)

For a bacterium to be seriously considered in the etiology of dental caries, it must:

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77)

All of the following is a part of the tooth germ except:

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78)

The number of baby teeth is:

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79)

The caries, all are true except:

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80)

The dental sac gives rise to:

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81)

The vestibular lamina gives rise to:

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82)

The number of roots that are formed is determined by the:

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83)

One of the following does contribute to the formation of the upper lip:

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84)

The muscles of mastication are derived from:

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85)

The tooth germ is composed of:

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86)

An oblique facial cleft is the result of:

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87)

Supernumerary roots occur mainly with:

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88)

The epithelial rests in the periodontal ligament are derived from:

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89)

The development of secondary palate begins from:

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90)

The dental sac plays an important role in the formation of all of the following except:

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91)

All of the following is a function of dental sac except:

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92)

Widely accepted theory of dental caries is:

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93)

All the statement about early dental development, except:

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94)

All of the following is a bout of Hertwig’s epithelial root sheath except:

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95)

The density of taste buds is highest:

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96)

Concerning the palate, all of the following are true, except:

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97)

Taste buds contain:

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98)

The bell stage occurs between the:

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99)

One group of structures is entirely derived from the dental sac:

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100)

Dental caries can be classified with respect to the site of the lesion:

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101)

The three major salivary glands are:

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102)

All of the following anomalies of the head and neck, except

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103)

The Hertwig epithelial root sheath of disintegrates:

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104)

The ectomesenchymal cell condensation just beneath the enamel organ is called:

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105)

All of the following is a functional activity of the enamel organ, except:

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106)

Calcified tissues of the tooth are derived from:

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107)

Which minor salivary glands are purely serous:

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108)

All of the structure is the tooth crown except:

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109)

Inner enamel epithelium:

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110)

The nerve of the third branchial arch is:

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111)

Passive eruption is:

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112)

Miller put forth the acidogenic theory of dental caries in the year:

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113)

One of the following is a component of tooth germ:

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114)

Complete tongue activity occurs in:

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115)

The papillae that is projections on the tongue called:

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116)

The development of the root begins when:

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117)

Pure mucous salivary gland is:

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118)

One of the following represents the correct order of prenatal development:

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119)

Palatal processes of the maxilla are derived from:

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120)

Pharyngeal pouches:

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121)

Chewing sequence could be divided into:

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122)

Functions of the digestive system are:

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123)

The map of taste buds for:

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124)

In patient with reduced salivary flow the carious incidence is:

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125)

Cavity formation in a tooth, due to dental caries is due to:

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126)

The occipital somite’s myotomes give rise to:

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127)

Active eruption of the tooth:

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128)

Function of gingival cervicular fluid is:

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129)

Concrescence is:

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130)

The following organisms is found in deep carious lesions rather than in incipient lesions is:

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131)

Deglutition is the complex process that:

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132)

Bacteria responsible for initiation of caries is:

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133)

Regarding deglutition:

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134)

The statements about the branchial apparatus are true except:

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135)

The following induces the dental papilla cells to be differentiated into odontoblasts:

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136)

The most likely factor responsible for tooth eruption is:

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137)

The function of the inner enamel epithelium is:

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138)

The name of the first branchial arch is:

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139)

Streptococcus mutants is involved in dental caries initiation Other bacteria also involved is:

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140)

Turbid dentin in carious tooth is all except:

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141)

The enamel organ:

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142)

The palatal shelves:

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143)

An oblique facial cleft is formed when the:

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144)

Four basic qualities:

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145)

Component of mastication are:

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146)

After ovulation the ovum can be fertilized for about:

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147)

Cleft palate may result from all of the following except

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148)

Appositional stage is confined from:

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149)

Second stage of deglutition is:

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150)

All of the following are involved in the formation of a tooth except:

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151)

Senile carious lesions are most commonly found exclusively on the following areas of the teeth:

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152)

Taste Bud major types Cells:

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153)

Neural crest cells are a temporary group of cells unique to vertebrates that arise from the embryonic ectoderm cell layer, and in turn give rise to A diverse cell lineage including:

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154)

All of the following does occur in the active phase of tooth eruption, except:

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155)

Primordium for the permanent dentition appears as an extension of dental lamina into the ectomesenchyme:

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156)

Median rhomboid glossitis is:

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157)

The dental lamina is induced to proliferate into a tooth bud by the:

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158)

One of the following is important for the development of teeth is:

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159)

The epithelial component of the tooth germ is known as:

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160)

The following embryonic structures contribute to the formation of lower lip:

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161)

The maxillary processes:

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162)

Branchial arches sharing in tongue development are:

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163)

Streptococcus mutans is considered to be a principal etiologic agent of caries because it produces acid and it:

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164)

Caries associated with pre-eruptive enamel hypoplasia:

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165)

The dental lamina:

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166)

All of the following does occur during the eruptive phase, except:

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167)

The dental lamina initiating the permanent molars develops:

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168)

One of the following causes the discolorations of teeth is:

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169)

The muscles are derived from the first brachial arch:

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170)

Actual eruptive movements of tooth occur mainly in a:

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171)

Histological changes occurring during the eruptive phase:

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172)

Pharyngeal mucosa is innervated by the glossopharyngeal nerves because it develops from the:

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173)

The extrinsic muscles of the tongue are supplied by:

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174)

Enamel pearls occur in:

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175)

In the post-eruptive phase, a tooth undergoes primarily:

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176)

The embryological origin of the hyoid bone is:

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177)

The palate is derived from three primordia:

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178)

The dental sac is:

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179)

Appositional stage is confined to:

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180)

Eruptive phase:

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181)

The primary cause of periodontal disease is:

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182)

Odontoblasts start their secretory activity:

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183)

Odontogenesis of the primary dentition begins between:

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184)

The Hertwig epithelial root sheath can’t be seen as a continuous layer in the developing root because:

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185)

One of the following Which of induces the dental papilla cells to be differentiated into odontoblasts is:

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186)

The most pronounced effect on the oral microflora of a reduction in rate of salivary flow is a:

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187)

The number of permanent teeth is:

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188)

Normal function of saliva:

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189)

All of the following is part of the tooth germ except:

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190)

Concrescence usually occurs with:

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191)

The Stomodeum is lined by:

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192)

The lateral spread of dental caries is facilitated mostly by the:

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193)

First stage of deglutition is:

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194)

The name of the second branchial arch is:

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195)

The soft palate develops from:

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196)

One of the following characterize prenatal development It is:

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197)

During the pre-eruptive phase of tooth eruption:

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198)

The inferior parathyroid gland originates from:

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199) One of the following should a woman avoid while she is pregnant:

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200)

Chemico-parasitic theory of dental caries is proposed by:

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201)

The salivary gland is:

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202)

The pH at which initiation of caries begins is:

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203)

No basal lamina is found between the cells of the:

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204)

Dental follicle cells:

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205)

The down growth of an epithelial thickening buccal to the dental lamina is known as:

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206)

First branchial arch is supplied by:

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207)

The embryo’s stomodeum is lined by:

Your score is

The average score is 85%

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