Gurumcqs.com offers a comprehensive collection of 2000+ basic and advanced oral anatomy MCQs, complete with answers and detailed explanations. This section is dedicated to covering all essential aspects of the oral anatomy subject, focusing on key topics related to the anatomy of the mouth and teeth. These include Basic Oral Anatomy, Calcification and Eruption of Teeth, Deciduous Dentition, Occlusion, Permanent Dentition, Physiologic Form of Tooth and Periodontium, Osseous Structures, TMJ, and more. The questions are carefully selected from reputable reference books on oral anatomy. These dental anatomy MCQs are valuable for interview preparation, entrance examinations, competitive exams, and certifications, catering to individuals with varying levels of experience, whether they are seasoned professionals, freshers, or students. Additionally, you can explore MCQs on medical topics on the platform.

71. Dentin islands are frequently found in the root canals of which of the following permanent teeth ?

A. Maxillary lateral incisor & mandibular canine
B. Maxillary 2nd premolar & maxillary 1st molar
C. Maxillary 2nd premolar & mandibular canine
D. Maxillary 1st molar & mandibular 2nd premolar

72. Ratio of mesiodistal width to height of crown of maxillary canine is______________?

A. 6:10
B. 8:10
C. 6:8
D. 7:10

73. An 8 – yr old child comes to your clinic with large front teeth having jagged margins, what is the treatment plan for this patient ?

A. Smoothen the jagged margins and apply fluoride varnish
B. Build up other teeth to large size
C. Extraction of big teeth
D. Assure him and send him back

74. Crown formation of all permanent teeth except third molars is completed between_____________?

A. Birth to 8 years
B. Birth to 12 years
C. Birth to 6 years
D. 6 years to 12 years

75. According to Schour & Massler the crown completion of both permanent maxillary and mandibular first molars is________________?

A. 1½ 2 years
B. 2½ – 3 years
C. 3-4 years
D. 3-5 years

76. Which of the following tooth shows largest Mesio- buccal ridge _____________?

A. Maxillary 1st premolar
B. Maxillary 2nd premolar
C. Mandibular 1st molar
D. Mandibular 2nd premolar

77. The number of point angles in a permanent mandibular first molar is_____________?

A. 6
B. 8
C. 4
D. 10

78. The term diphydont means____________?

A. Second dentition
B. Two same sets of dentition
C. Two separate sets of dentition
D. More than two sets of dentition

79. The root of maxillary lateral incisors if curved is usually in which direction ?

A. Distal
B. Mesial
C. Facial
D. Palatal

80. The shortest root on a maxillary first molar is_____________?

A. Mesio- buccal
B. Disto – buccal
C. Lingual
D. All are of equal length