/199 435 Dental Histology Preparation (Pr.Ast. Koe Dimora) 1 / 199 1) The presence of vital _______ qualifies dentins as a living tissue.: a. First molar, second molar b. Premier, secondary c. Smaller, median d. Odontoblastic processes e. First molar, second molar and Premier, secondary 2 / 199 2) Oncocytoma almost exclusively occurs in: a. Accessory salivary gland b. Submandibular salivary gland c. Sublingual salivary gland d. Parotid salivary gland 3 / 199 3) Where is determined in the dentin the granular layer Thomes : a. In radicular dentin b. In parapulpal dentin c. In the mantiar layer d. In coronal dentin e. In dentin in the region of the cusps 4 / 199 4) The function of dental pulp : a. Protective b. Nourishing ( nutritive ), Protective, Inductive, Defensive, Formative c. Formative d. Defensive e. Inductive 5 / 199 5) Hunter – Schreger bands appear as a result of : a. Sinuos direction of prisms b. Curving of prisms in shape of “ S “ c. Alterating of cutting prisms portions in longitudinal and transverse direction d. Not uniform optical density e. Incomplete mineralization of enamel 6 / 199 6) Multiple cystic lesions inside both the parotid glands in a patient should alert the clinician for a possible diagnosis of: a. Mumps b. Malignancy c. HIV infection d. Measles infection 7 / 199 7) Sialolithiasis is common in: a. Sublingual salivary gland b. Accessory salivary gland c. Parotid gland d. Submandibular salivary gland 8 / 199 8) Cellular intrinsic fibrillar cementum is found when the cementum needs : a. Repair b. Safe c. Care d. Keep e. Fix 9 / 199 9) Periodontium contacts directly with : a. Dental pulp b. Gingiva c. Maxillary’s bone d. Gingival sulcus 10 / 199 10) The composition of the innorganic matter of enamel is : a. Chlorapatite – 2,39 % b. CaCO3 c. Fluorapatite – 0,663 % d. Hydroxyapatite – 75,04 % e. Carbonapatite – 12,06 % 11 / 199 11) Enamel covers : a. Cement b. Primary dentin c. Dentin d. The crown of the tooth e. The root of tooth 12 / 199 12) Indicate the pulpal fibers of collagen : a. Korffes’ fibers b. Ebners’ fibers, Korffes’ fibers c. Elastic fibers d. Reticuline fibers e. Tomes’ fibers 13 / 199 13) Terms of root formation for temporary incisors are : a. 11 months b. 2,5 years c. 1 year d. 2 years e. 3 years 14 / 199 14) The first cementum laid down is called __: a. Tubule b. Root c. Enamel d. Cementoid e. Dentin 15 / 199 15) Select the components of enamel organ : a. Internal epithelial layer b. External epithelial layer, Internal epithelial layer, Reticulum stellatum, Intermediary layer c. Reticulum stellatum d. Intermediary layer 16 / 199 16) The thickness of periodontium is equal with : a. 0,20 mm b. 0,30 mm c. 0,50 mm d. 0,35 mm 17 / 199 17) Acellular afibrillar cementum is only found in : a. Saya b. Colonado c. Yard d. Coronal cementum e. Ameosay 18 / 199 18) Periodontium is situated in : a. Between cement and dentin b. Between radicular cement and cancellous bone c. Periodontal space d. Between compact lamellae of alveolus and radicular cement e. Alveole 19 / 199 19) Specify terms of eruption for first temporary molars : a. 1620 months b. 68 months c. 2030 months d. 812 months e. 1216 months 20 / 199 20) component of saliva that helps dissolve foods so they can be tasted and digestive reactions can begin: a. dummy b. sweet c. chili d. water e. salt 21 / 199 21) Calcium content of saliva is low in: a. Parotid secretions b. Accessory salivary gland secretions c. Sublingual salivary gland secretions d. Submandibular salivary gland secretions 22 / 199 22) Dentin contains organic matter about of : a. 41 % b. 3240 % c. 1520 % d. 2527 % e. 2830 % 23 / 199 23) During sleep the parotid gland is known to secrete about: a. Parotid secretion ceases during sleep b. 50% of basal salivary secretion c. 75% of basal salivary secretion d. 100% of basal salivary secretion 24 / 199 24) Dental sac is composed from the following layers : a. Superior layer b. Intermedia layer c. Inferior layer d. External layer e. Internal layers, Intermedia layer, External layer 25 / 199 25) From mesenchimal papilla is developed : a. Dentin, Pulp b. Enamel c. Cement d. Dental alveolus 26 / 199 26) In patients with diabetes mellitus the parotid gland is: a. Shrunken b. Enlarged c. Fibrosed d. Cystic in nature 27 / 199 27) Which mineralized tissue has the highest fluoride content? : a. Bone b. ACJ c. Enamel d. Dentin e. Cementum 28 / 199 28) Ends of odontoblastic processes that extend a short distance into the enamel are called _______________________.: a. Enamel spindles b. Mata c. Crown d. Tooth e. Cellin 29 / 199 29) Principal mass of a tooth represents : a. Enamel b. Dentin c. Cement d. Pulp e. Blood vessels 30 / 199 30) the secretion of saliva: a. layer b. oss c. sell d. salivation e. cell 31 / 199 31) found in the floor of the mouth; medial and partly inferior to the mandible: a. mandible b. submandibular glands c. maxilla d. molar e. apical 32 / 199 32) Warthin’s tumor is known to develop from: a. Myoepithelial cells b. Acinar cells c. Lymphoid tissue within parotid gland d. Basal cells 33 / 199 33) Which one is not Secondary dentin is deposited preferential on : a. Pulp cavity floor of molars b. Pulp cavity floor of premolars c. Vestibular wall of pulp cavity of frontal teeth d. Pulp cavity chamber of premolars e. Pulp cavity chamber of molars 34 / 199 34) fluid secreted by the salivary glands: a. center gland b. saliva c. post gland d. middle gland e. sub gland 35 / 199 35) Enamel prism is composed from : a. Head b. Handle c. Root d. ligament e. Neck 36 / 199 36) Superfical parotidectomy is contraindicated in patients with sialectasis because: a. There is a high risk of fistula formation b. There is high risk of infection c. There is risk of facial palsy d. There is high risk of dry mouth 37 / 199 37) Warthin’s tumor is commonly seen in: a. Sublingual salivary gland b. Submandibular salivary gland c. Accessory salivary gland d. Parotid gland 38 / 199 38) Name the 4 components of the periodontium. ______________: a. PDL b. Gingiva c. Cementum, alveolar bone, PDL, lamina propria of gingiva facing tooth d. Alveolar e. Cementum 39 / 199 39) A hereditary condition that results in severely impaired enamel is called ___.: a. Shreger b. Hunter c. Band Hunter d. Amelogenesis imperfect e. Bands 40 / 199 40) Retzius strips ( striae ) appear in transverse section of tooth as a : a. Herbal tufts b. Fusiform formations c. Concentric circles arranged in irregular intrvals d. Continued bands which are parallel with the long ax of a tooth e. Concentric circles arranged in regular intervals 41 / 199 41) Bone is (vascular or avascular) ____________________, cementum is ______: a. Os b. Vascular, avascular c. A;veolar d. Suture e. Bone 42 / 199 42) The base of inorganic matter is : a. Calcium fluoride – Ca FO3 b. Molybdenum – Mo c. Calcium carbonate – Ca CO3 d. Vanadium – V e. Calcium phosphate – Ca (PO4) 43 / 199 43) Benign tumors of superfical lobe of parotid gland takes a very long time to project outwards because: a. Ramus of the mandible stops tumor progression b. The styloid process stops the progression of tumor c. The external surface of the parotid gland is covered by tough parotid fascia d. Slow rate of tumor growth 44 / 199 44) Specify functions of basic substance of dental pulp : a. Ions receiver b. water receiver c. Homeostatic, A water receiver, Ions receiver d. The transmission of nervous excitation e. Hemostatic 45 / 199 45) The functions of periodontium are : a. Sensory and protective b. Transmission of pressure c. Trophic d. Supporting, Plastic, Transmission of pressure, Trophic, Sensory and protective e. Plastic 46 / 199 46) Chemical stimulation maximises the secretion of: a. Submandibular gland b. Sublingual gland c. Accessory salivary gland d. Parotid gland 47 / 199 47) Teeth development begin in the : a. 5th – 6th weeks b. 6th – 7th weeks c. 7th – 8th weeks d. 4th – 5th weeks e. 3rd intrauterineweeks 48 / 199 48) Dentin is composed from : a. Basic substance b. Odontoblasts c. Sharpeys’ fibers d. Collagen fascicles e. Dentinal tubules 49 / 199 49) In parotid surgeries the most reliable way of identifying the facial nerve is: a. By using the tragal pointer b. By tracing it from the mastoid cavity c. By removing the styloid process d. Searching at the tympanomastoid sulcus 50 / 199 50) The first salivary gland to develop is: a. Parotid gland b. Submandibular salivary gland c. Accessory salivary glands d. Sublingual salivary gland 51 / 199 51) Cellular cement is situated in : a. In the limit with enamel b. Covers the root apex, Covers the bifurcation region c. In the apical orifice d. Surrounds the root surfaces e. Covers the bifurcation region 52 / 199 52) Corresponding to the content of fibrillar structure , in the dentin is distinguished the following zones : a. Afibrillar b. That contain Korffs’ and Ebners’ fibres c. Cellular d. That contains Korffs’ fibres e. That contain Ebners’ fibres 53 / 199 53) If a cementoblast becomes surrounded by cementum matrix, it is then called a : a. Safe fiber b. Dentinal c. Cementocyte d. Fiber e. Junction 54 / 199 54) How many layers are distinguished in the normal dentine : a. Mantiar layer, Parapulpal layer, Predentin b. Parapulpal layer c. Predentin d. Translucid layer e. Tertiary dentin ( reparative ) 55 / 199 55) Plastic function of periodontium is due to : a. Plasmocytes b. Fibroblasts c. Osteoblasts d. Histiocytes e. Cementoblasts 56 / 199 56) Brush-like areas of hypocalicified enamel rods at the DEJ are called __________.: a. Enamel tufts b. Cememtum c. Tooth d. Dentin e. Enamel 57 / 199 57) Epithelial thickness or epithelial plate is devided between a. Epithelial plate b. Adamantin plate c. Bucolabial plate ,Dental plate d. Dentinal plate 58 / 199 58) Characteristic cells for health pulp are : a. Histiocytes b. Odontoblasts c. Cementoblasts d. Lymphocytes e. Ameloblasts, Lymphocytes, Odontoblasts 59 / 199 59) Parotid duct is known as: a. Stylle's duct b. Wharton's duct c. Stenson's duct d. Finely's duct 60 / 199 60) Dentin Incremental lines: a. Imbrication lines of Von Ebner b. Ebner c. Lines d. Imbrication lines e. Von Ebner 61 / 199 61) In the root of the tooth, which tissue is formed first, dentin orcementum?_: a. ACJ b. Pupl c. Enamel d. Cementum e. Dentin 62 / 199 62) What is the content of a dentinal tubules : a. All of the above b. Nerves c. Blood vessels d. Tomes’ fibers e. Lymphatic vessels 63 / 199 63) Fine intrinsic collagen fibers are formed by _______________________.: a. Enamel b. Dentin c. Fiber d. Cementoblasts e. Apical 64 / 199 64) Salivary fistula is commonly originates from: a. Submandibular salivary glands b. Sublingual salivary glands c. Parotid glands d. Accessory salivary glands 65 / 199 65) The main function of fibroblasts of the pulp is to form : a. Predentin b. Dentin c. Anatomic apex d. All of the above e. Basic substance, Collagen fibers f. The structure and functions of periodontium 66 / 199 66) Normally the mandible has a shape of : a. Trapezium b. Parabolic c. “ W “ shape d. “ U “ shape e. Ellipse 67 / 199 67) Sialadenosis commonly involves: a. Accessory salivary gland b. Parotid gland c. Sublingual gland d. Submandibular gland 68 / 199 68) Dentin Organic/H2O level: a. 30% b. 60% c. 50% d. 20% / 10% e. 40% 69 / 199 69) Submandibular salivary gland is separated into superficial and deep portions by: a. Sternomastoid muscle b. Digastric muscle c. Mylohyoid muscle d. Buccinator muscle 70 / 199 70) In the enamel can be met : a. Ebners’ growth lines b. Hunter – Schreger bands c. Retzius growth lines d. Owens’ growth lines e. Perikymaties 71 / 199 71) The most numerous cells of the pulp are : a. Odontoblasts b. Plasmatic cells c. Histiocytes d. Monocytes e. Fibroblasts 72 / 199 72) located inferior and anterior to the ears between the skin and the masseter muscle: a. middle gland b. post gland c. parotid glands d. center gland e. sub gland 73 / 199 73) Carbohydrateprotein substance corresponding to the blood group antigens are not secreted by: a. Sublingual salivary glands b. Submandibular salivary glands c. Parotid glands d. Accessory salivary glands 74 / 199 74) In radicular cement is distinguished : a. Granular layer Tomes b. Interglobular spaces Czermak c. Sharpeys’ fibers d. Cementoblasts e. Cementoblasts, Cementoblasts, Sharpeys’ fibers 75 / 199 75) Enamel prism in transversal section has a shape of : a. Cuboid b. formed c. Poligonal d. Arched e. Oval 76 / 199 76) Parotid gland swellings are very painful because: a. The parotid glands suppurate easily b. The outer layer (parotid fascia) is inelastic and firm c. The parotid gland is closely related to the external auditory canal d. There is no outer layer of fascia covering the parotid gland 77 / 199 77) Dark zones of Hunter – Schreger bands are called : a. Transverse bands b. Perikymaties c. Parazones d. Schreger lines e. Diazones 78 / 199 78) protects the mouth’s mucous membrane from infection and the teeth from decay: a. oss b. cell c. sell d. lysozyme e. layer 79 / 199 79) Irregular intertwining bundles of enamel rods, located primarily at the cusps, is known as _____________________ enamel.: a. Gnarled b. Lines c. Hunter d. Polarized e. Scslloped 80 / 199 80) Odontoblast’s shape can be : a. Fusiform b. Flat c. All of the above d. Cillindrical e. Star – form 81 / 199 81) Name four causes of external staining ____.: a. Hunter b. Bands c. Shreger d. Band Hunter e. Coffee, tea, tobacco, red wine, betel nuts 82 / 199 82) Buco – labial plate contributes to formation of : a. Dental pulp b. Enamel c. Dental buds d. Dentin e. Vestibulum oris 83 / 199 83) Lightning segments of Hunter – Schreger bands are called : a. Superposed lines b. Parasones c. Perikymaties d. Diasones e. Knotty ( nodose ) enamel 84 / 199 84) Periodontium is formed from : a. Adipose tissue b. Cement tissue c. Conjunctive tissue d. Osseous tissue e. Epithelial tissue 85 / 199 85) The peripheric processes of odontoblasts are situated in : a. Predentin, Dentinal tubules, Dentin b. Central layer c. Subodontoblastic layer d. Dentinal tubules e. Dentin 86 / 199 86) In superficial parotidectomy: a. The whole of superfical lobe and part of deep lobe of the gland is removed b. Only a part of superfical lobe is removed c. The deep lobe is removed completely d. The superfical lobe is removed completely 87 / 199 87) Specify functions of basic substance of dental pulp : a. The transmission of nervous excitation b. Hemostatic c. water receiver d. Homeostatic e. Ions receiver 88 / 199 88) What is the basic unit of the enamel structure : a. Fissures b. Enamel prisms or rods c. Diazones d. Perikymaties e. Aprismatic areas 89 / 199 89) definitive line that indicates the birth of an infant in the enamel of a tooth is called the ________________________.: a. Cementum b. Neonatal line c. Dentin d. Tooth e. Enamel 90 / 199 90) Odontoblast’s shape can be : a. Cillindrical, Shutter ( window ) shape b. Shutter ( window ) shape c. Star – form d. Fusiform e. Flat 91 / 199 91) Dental pulp is a lax conjunctive tissue formed from : a. Basic substance b. All of above c. Nerves d. Fibrous elements e. Cells f. Blood vessels 92 / 199 92) Structural element characteristic to the dentinal canaliculi is: a. Uniform calibre b. Periferic narrowing of calibre c. Presence of Sharpeys’ fibers d. Growth Ebners’ lines e. The presence of myeline nervous fibers 93 / 199 93) Specify terms of germs mineralization for second temporary molar : a. 7 months b. 8 months c. 6 months d. 6,5 months e. 7,5 months 94 / 199 94) Characteristic cells for health pulp are : a. Histiocytes b. All of the above c. Cementoblasts d. Odontoblasts, Ameloblasts, Lymphocytes e. Cartilage 95 / 199 95) Number of tubules on 1mm2 oscillate from : a. 10.000 b. 30.000, 75.000 c. 75.000 d. 15.000 e. 20.000 96 / 199 96) The fibers from radicular cement have one direction and are joined : a. With both b. With Sharpeys’ fibers c. With Tomes’ fibers d. Tangential e. Radial, With Tomes’ fibers 97 / 199 97) The enamel is covered by cement in the region of neck in : a. 65 % b. 25 % c. 35 % d. 5 % e. 10 % 98 / 199 98) beneath the tongue and superior to the submandibular glands: a. sublingual glands b. center gland c. post gland d. sub gland e. middle gland 99 / 199 99) Parotid calculi are diagnosed by: a. Plain radiograph of parotid gland b. CT scan c. Xray skull lateral view d. Plain radiograph occlusal view 100 / 199 100) Acini of parotid glands are formed by: a. Mucinous cells b. Cloudy cells c. Serous cells d. Seromucinous cells 101 / 199 101) Terms of buds formation for temporary canines : a. 89 weeks b. 910 weeks c. 78 weeks d. 67 weeks e. 1011 weeks 102 / 199 102) How many phases exist in the development of tooth tissues are : a. 6 b. Sinking of epithelium into mesenchime c. 5 d. 2 e. 3 f. 4 103 / 199 103) What is the content of a dentinal tubules : a. Lymphatic vessels b. Tomes’ fibers, Peripheric process of odontoblasts c. Nerves d. Blood vessels 104 / 199 104) Odontoblasts are cells with structure : 104) a. Body b. Polar ( arctic ), Have body, Have processes c. Do not have processes d. All of the above e. Have only one process 105 / 199 105) Structural element characteristic to the dentinal canaliculi is : a. Presence of Sharpeys’ fibers b. The presence of myeline nervous fibers c. Periferic narrowing of caliber d. Growth Ebners’ lines e. Uniform calibre 106 / 199 106) Perineural invasion is common in: a. Pleomorphic adenoma b. Adenoid cystic carcinoma c. Mucoepidermoid carcinoma d. Acinous cell carcinoma 107 / 199 107) Excess cementum formation is called : a. Cemtume b. Hyposis c. Hypercementosis d. Theiss e. Hypo 108 / 199 108) Enamel prism in transversal section has a shape of : a. Scale b. Oval c. Arched, Scale – formed d. Cuboid e. Poligonal 109 / 199 109) The organic substance of dentine is composed from : a. Fibroblast b. Collagen c. Fatty oils d. Proteins, Glucides,Aminoacids,Polysaccharid e. Calcium 110 / 199 110) Dental pulp is situated in : a. Coronal part of the tooth b. In coronal and radicular part of the tooth c. In tooth cavity d. In the region of the neck e. Radicular part of the tooth 111 / 199 111) Enamel formed at a small spot in a location other than normal is called an ________.: a. Hunter b. Lines c. Enamel pearl d. Scslloped e. Polarized 112 / 199 112) Health teeth react to currents of about : a. 12 mA b. 26 mA c. 2540 mA d. 712 mA e. 1525 mA 113 / 199 113) Which one is not the organic substance of dentine is composed from : a. Proteins b. Fatty oils c. Aminoacids d. Polysaccharid(e) e. Glucides 114 / 199 114) Approximately what % of enamel is calcium hydroxyapatite ___: a. 95-97% b. 70-80% c. 50-70% d. 40-60% e. 50-100% 115 / 199 115) The meaning of fibrillar cement : a. Like cancellous bone b. Like compact bone c. Primary cement d. Localized in the cervical third of the root e. Localized in the apical third of the root 116 / 199 116) Dentin Embryologic development: a. Dental epithelium b. Dental tube c. Dental lamina d. Dental papilla e. Dental cell 117 / 199 117) In Bulimia parotid glands are: a. Cystic in nature b. Nodular c. Shrunken in size d. Enlarged 118 / 199 118) Dentin Mineral Level (inorganic): a. 80% b. 70% c. 90% d. 100% e. 50% 119 / 199 119) In approximately 60% of cases, the cementum the enamel. (overlaps, meets, does not meet- exposed dentin): a. Overtime b. Under c. Over d. Overlaps e. Oversleep 120 / 199 120) digestive enzyme in saliva that begins the digestion of starches in the mouth: a. membrand b. obait c. cel d. cell e. salivary amylase 121 / 199 121) Enamel covers : a. Dentin in the coronal part b. The crown of the tooth, Dentin in the coronal part c. Cement d. The root of tooth, Dentin, Cement e. Dentin 122 / 199 122) Enamel prism is composed from : a. Head, Tail b. Root c. Handle d. Neck e. nail 123 / 199 123) The peripheric processes of odontoblasts are situated in : a. Subodontoblastic layer b. pulp c. Central layer d. Predentin, Dentin, Dentinal tubules e. Cementum 124 / 199 124) Adenoid cystic carcinoma is known to commonly involve: a. Minor salivary glands b. Submandibular salivary gland c. Parotid gland d. Sublingual salivary gland 125 / 199 125) Dental pulp is a lax conjunctive tissue formed from : a. Basic substance Cells, Fibrous elements, Blood vessels, Nerves b. Fibrous elements c. Blood vessels d. Cells e. Nerves 126 / 199 126) Dentinal tubules are distributed ununiformly in different layers of dentine : a. More near the enamel b. Less near the pulp c. More near the pulp, Less near the enamel d. Less near the enamel e. Do not vary 127 / 199 127) Changes in enamel rod orientation as seen by polarized light on tooth sections are called _: a. Band Hunter b. Shreger c. Hunter d. Bands e. Hunter-Shreger bands 128 / 199 128) Trauma or high fevers can cause _______________________________.: a. Necro b. Enamel hypoplasia c. Mottling d. Amelo e. Eugina 129 / 199 129) The wall of each tubule is composed of a layer of hypermineralized dentin matrix termed _______ _______: a. Peritubular dentin b. First molar, second molar and Premier, secondary c. Premier, secondary d. First molar, second molar e. Smaller, median 130 / 199 130) three solutes in saliva: a. salivary b. amylase c. salivary amylase, mucus, lysozyme d. mucus e. lysozyme 131 / 199 131) The parotid gland is divided into superficial and deep portions by: a. Internal maxillary artery b. Facial nerve branches c. Mandible d. Cartilagenous portion of external auditory canal 132 / 199 132) Odontoblasts are cells with structure : a. Have processes b. Polar ( arctic ), Have processes Have body c. Have only one process d. Have body e. Do not have processes 133 / 199 133) Periodontium innervation is derived from : a. Gingival fibers, Interalveolar fibers, Periodontal fibers b. Pulpal fibers c. Dental fibers d. All of above 134 / 199 134) An antibiotic which can cause severe staining of enamel if given during amelogenesis is __________________________.: a. Crown b. Tetracycline c. Tooth d. Mata e. Cellin 135 / 199 135) The base of inorganic matter is : a. Calcium carbonate – Ca CO3 b. Calcium fluoride – Ca FO3 c. Calcium phosphate – Ca (PO4) 2 d. Vanadium – V e. Molybdenum – Mo 136 / 199 136) From enamel organ is developed : a. Cement b. Dental alveolus c. Pulp d. Dentin e. Enamel 137 / 199 137) The radicular 1/3 of the tooth has primarily which type of cementum?: a. Solute b. Lalucell c. Cellular d. Poison e. Ameoblast 138 / 199 138) Cellular mixed fibrillar cementum can be found in the : a. Root b. Root furcation c. Dentin d. ACJ e. Apical 139 / 199 139) Hypocalcified “cracks” in enamel, usually entending from the DEJ to the surface, are called _____________________.: a. Enamel lamellae b. Lines c. Scslloped d. Hunter e. Polarized 140 / 199 140) Sublingual salivary gland is situated: a. Posterior to the mylohyoid muscle b. Above the mylohyoid c. Below the mylohyoid muscle d. Under the palatopharyngeous muscle 141 / 199 141) Name two common conditions which affect teeth and enamel due to aging ____.: a. Staining steel b. Junction c. Attrition and staining d. Dentin e. Cemen 142 / 199 142) Basic elements of the enamel are : a. Phosphorus b. Magnesium c. Fluor d. Natrium e. Calcium 143 / 199 143) Because enamel is formed in a ‘layering’ pattern, ground tooth sections show brownish lines called ___, also known as incremental lines.: a. Shreger b. Striae of Retzius c. Lines d. Retzium e. Hunter 144 / 199 144) Coarse extrinsic collagen fibers are formed by ____________________.: a. oral b. Fibroblasts c. Third d. Premiered e. Second 145 / 199 145) In radicular cement is distinguished : a. Fiber b. Collagen c. Interglobular spaces Czermak d. Granular layer Tomes e. Cementoblasts, Sharpeys’ fibers, Cementoblasts 146 / 199 146) Dentin formative cells: a. Dental lamina b. Odontoblasts c. Dental epithelium d. Dental tube e. Dental cell 147 / 199 147) The molar coreport of Ca / P in the apatites of enamel crystalles is : a. 1,50 b. 1,70 c. 1,67 d. 1,80 e. 1,20 148 / 199 148) Excess fluoride incorporated into enamel during amelogenesis can cause mottling and pitting and is called __________________.: a. Fluorosis b. Amelo c. Eugina d. Mottling e. Necro 149 / 199 149) Dentin contains inorganic matter about of : a. 7580 % b. 2830 % c. 7072 % d. 4050 % e. 90 % 150 / 199 150) Specify terms of dental germs mineralization for canines : a. 7,5 months b. 7 months c. 6 months d. 5,5 months e. 4,5 months 151 / 199 151) Submandibular salivary gland swelling is differentiated from submandibular lymphadenitis clinically by: a. Bidigital palpation b. Presence of transillumination in submandibular salivary gland c. Palpation from behind the patient d. Movement during swallowing 152 / 199 152) Chemical composition of radicular cement : a. 28 % of inorganic matter b. 42 % of inorganic matter c. 70 % of inorganic matter d. 68 % of inorganic matter, 32 % of inorganic matter e. 32 % of inorganic matter 153 / 199 153) 99.5% water, 0.5% solutes: a. saliva b. molar c. apical d. mandible e. maxilla 154 / 199 154) Oral epithelium forms in mesenchime a growth in shape of : a. Triangle b. Bell c. Cup d. Line e. Horseshoe 155 / 199 155) Normally the maxilla has a shape of : a. “ W “ shape b. “ U “ shape c. Ellipse d. Trapezium e. Parabolic 156 / 199 156) Incremental growth lines in cementum are called _________: a. alveolar b. cementusis c. fiber d. odontoblast e. Lines of Salter 157 / 199 157) Acellular cement is situated in : a. In the limit with enamel b. Surrounds the root surfaces c. In the region of bifurcation d. In the region of apex e. In apical orifice 158 / 199 158) On the surface of the crown, these lines cause very slight depressions on newly erupted teeth called _____________________.: a. Cellin b. Perikymata c. Mata d. Crown e. Tooth 159 / 199 159) Terms of root formation for first temporary molars are : a. 4 years b. 6 years c. 5 years d. 2 years e. 3 years 160 / 199 160) Enamel can sometimes be formed in other locations other than the crown. The most common area for this to occur is at the ________________________.: a. Bands b. Hunter c. Band Hunter d. Furcation e. Shreger 161 / 199 161) The two main types of cementum are called and: a. Canal b. Cyst c. Tube d. Lamina e. Cellular, acellular 162 / 199 162) Basic elements of the enamel are : a. Fluor b. Calcium , Phosphorus c. Magnesium d. Natrium 163 / 199 163) Dentinal tubules are more ____ and of ______ diameter at the pulpal aspect of the dentin: a. First molar, second molar b. First molar, second molar and Premier, secondary c. Premier, secondary d. Smaller, median e. Concentrated, larger