ORAL BIOLOGY Page 1

STUDENT COURSE PORTFOLIO

3rd B.D.S: ORAL BIOLOGY

NAME: _____________________________________________________

A.C. NUMBER:____________________________________________

ACADEMIC YEAR: 2014 – 15

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Sl. No Contents Page No

1 Course Code 2

2 Credits Hours 2

3 Course Delivery 2

4 Staff Members 2

5 Purpose of Course 2

6 Aims & Objectives of Course 3

7 Theory Syllabus 3

8 Minimal Procedure Experience 3

9 Learning Resources 4

10 Competency Test 4

11 Staff Contact 6

12 Lecture and practical schedule 7

13 Marks distribution, Grading System & Clarifications 10

14 Student Attendance 11

15 Session Timings 12

16 Academic Counseling 12

17 Ethical and professional Behaviour 13

18 Emergency & Safety 13

19 MPE Completion Certificate 15

20 Laboratory Sessions 16

21 Assignments – Individual/Groups assessment 110

22 Viva Voce Assessment 127

23 Competency Test Assessment Form 129

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ORAL BIOLOGY

1. COURSE CODE: BIOL 251

2. COURSE DELIVERY: 3RD BDS (SEMESTER – 1 & 2)

3. CREDIT & CONTACT HOURS: 3(2+1+0)

Semester

Lecture Laboratory Seminar/ Poster

Presentation

Total

Credits 2 1 0 2

Contact 50 hours 56 hours 6 hours 112 hours

4. STAFF MEMBERS

Name Qualification Designation

1

Dr. Sreeja Ravindran

M.D.S

(Oral Pathology & Microbiology)

Assistant Professor & Course Coordinator

2

Dr. Syed Mukith Ur

Rahaman

M.D.S

(Oral Pathology & Microbiology)

Assistant Professor

3

Dr. Prashant Kandekar

M.D.S

(Oral Pathology & Microbiology)

Assistant Professor

5. PURPOSE FOR THIS COURSE

The purpose of Oral Biology course in a dental program is to build up the basic

knowledge about normal oral structures and apply it in future during clinical

courses and practice. This course offers the students detailed information on

oral tissues such as its physical and chemical composition, development,

anatomy and its histology. In addition, the students will have a fair idea about

the physiologic process involved in tooth eruption and shedding.

Overall, the course intends to provide a fair knowledge about the oral structures

and its appearance which gives them the groundwork to identify any deviation

from normal.

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6. AIMS & OBJECTIVES OF COURSE

At the completion of the course, the student s understanding on the

following topics:

The formation and development of normal orofacial tissues.

The interrelation ship between macroscopic and microscopic

structures of the oral cavity.

The chemical composition of enamel, dentine, cementum, bones and

differences between them.

The biology of the periodontium, oral mucous membrane, salivary

glands.

7. THEORY SYLLABUS

1. Embryology of head, face & oral cavity

2. Development of teeth

3. Enamel

4. Dentine

5. Dental pulp

6. Cementum

7. Periodontal ligament

8. Alveolar bone

9. Oral mucous membrane

10. Salivary glands

11. Maxillary sinus

12. Temporomandibular joint

13. Eruption and shedding

8. MPEs (MINIMAL PROCEDURE EXPERIENCE)

Part – 1/Laboratory Sessions: Each laboratory sessions are for 2 hours. At

the beginning of every session student will discuss briefly with the instructors the

slides studied in the previous session describing its important macroscopic /

microscopic features and its clinical aspects if any. Soon after, student will be

provided with a microscope & histology slide of atleast 3 normal oral tissues / digital

slides of normal oral tissue. Further student uses the slide to locate a specific field,

identifies the tissue, and at least four important features supporting the

identification of the tissue, followed by drawing & labeling the same using HB, lilac

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and violet colored pencils in portfolio/record book. Additionally, students will

illustrate images of some parts of oro-facial region in the record book.

At the completion of each exercise student fills a self assessment form where he

writes the microscopic findings and identifies the tissue and assess himself for

parameters given in the record book. At the end, staff / instructor cross checks the

student’s assessment and gives final assessment for each slide with remarks if

required.

Total number of histology slides from each topic is as follows:

SL NO. Topic Number

1 DEVELOPMENT OF FACE AND PALATE 3

2 DEVELOPMENT OF TOOTH 4

3 ENAMEL 5

4 DENTINE 5

5 PULP 3

6 CEMENTUM 4

7 ALVEOLAR BONE 2

8 PDL 1

9 SALIVARY GLANDS 3

10 TMJ 1

11 OMM 7

12 ERUPTION AND SHEDDIG 1

13 MAXILLARY SINUS 1

TOTAL 40

Part – 2-Individual /Group Assignment: Student should carry out research on a

topic assigned by the staff members, collect materials related to it and add the

collected information in your record book followed by discussion with the staff

members. Grades will be allotted by the supervisors on the assignment done

according to the parameters mentioned in your record book. The 2 assignments

together carry maximum of 5 marks.

The Part -2 assignments will be carried out in 2 components. 1) Individually,

where you complete a research and present the information in written form (NO

printouts or photocopies) in your record book at a given specific time. 2) Carry

out the research on a topic in groups of 6 in the form of A4 size poster, and

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attach this poster to each of your record book. Groups will present this poster

orally during class hours.

Part – 3/ Oral assessment: Student will be asked questions individually by the

staff members on any of the topics given under theory syllabus. A total of 5

marks are allotted for this assessment.

9. LEARNING RESOURCES /REFERENCE TEXT BOOKS

A. Tencate’s Oral Histology book

B. James K Avery -Essentials of Oral Histology and Embryology

C. Orban’s Oral Histology book

D. Satish Chandra – Dental Histology text book

Note: Students are strictly advised to read from any of the above mentioned text

books or other standard text books of oral biology. Handouts of lecture or practicals

are meant only for revision of the classes NOT for the study of subject.

10. COMPETENCY TEST

A. Minimum attendance required to take up competency test is 80%.

B At least 12 marks are needed in MPE (minimum Procedure experience) to take up

final competency test.

C. In the Oral Biology course, Competency test (CT) is conducted at the end of each

half of academic year i.e. ESE 1 (Competency test -1 for 10 marks), ESE 2

(Competency test -2 for 10 marks)

D. Competency tests 1 and 2 have two components each. First component includes

identification of photomicrographs of normal oral tissues, drawing and labeling them.

The second component comprises of computer based assessment.

E. Competency test 1: Identification, drawing of photomicrograph of the normal

oral tissues, and labeling of parts of the tissue within two minutes each. Topics

included are General Embryology, Enamel, and Dentine, Dental Pulp, Cementum,

Periodontal ligament.

F. Second component under CT1 will include a computer based assessment in which

students will have to identify microscopic/macroscopic structures and answer

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questions based on it within a stipulated time frame. Topics included are General

Embryology, Enamel, Dentine, Dental Pulp, Cementum, Periodontal ligament.

G. Competency test 2: Identification and drawing of digital images of

photomicrograph of the normal oral tissues, and labeling of parts of the tissue within

two minutes each. Topics included are, all the topics from the Competency test 1, &

Alveolar bone, development of tooth, oral mucous membrane, Salivary glands,

Eruption & Shedding, Maxillary Sinus & TemporoMandibular joint.

H. Second component under CT2 will include a computer based assessment in which

students will have to identify microscopic/macroscopic structures and answer

questions based on it within a stipulated time frame. Topics included are all the

topics from competency test 1 & Alveolar bone, development of tooth, oral mucous

membrane, Salivary glands, Eruption & Shedding, Maxillary Sinus &

Temporomandibular joint.

I. Student gets admission into End semester examination-2 only after passing the

competency tests.

11. CONTACT

No. Name Division Ext # Room

# E-mail Office Hours

Coordinator

1 Dr. Sreeja Ravindran

Oral Pathology &

Biology

323 333 ibnsinatripleo@gmail.com Monday 1 to 4PM

Teachers

1 Dr. Syed Mukith R

Oral Pathology &

Biology

356 363 ibnsinatripleo@gmail.com Monday 1 to 4PM

2 Dr. Prashant kandekar

Oral Pathology &

Biology

367 363 Kandekar.prashant2@gmail.com

Monday 1 to 4PM

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12. LECTURE / PRACTICAL SCHEDULE

WEEKS LECTURE /

PRACTICAL

TOPICS STAFF

1ST

WEEK

LECTURE – 1 Orientation lecture Dr. Sreeja Ravindran

LECTURE – 2 Embryology: Introduction, Development of face & Palate Tongue Dr. Sreeja Ravindran

PRACTICAL – 1 Slide discussion: 1 – 3 Dr. Sreeja Ravindran

2ND

WEEK

LECTURE – 3 Embryology: Development of Tongue & Clinical Applications Dr. Sreeja Ravindran

LECTURE – 4 Enamel: Introduction, Composition, Properties, Microscopic structures Dr. Prashant K

PRACTICAL – 2 Slide discussion: 4 – 6 Dr. Prashanth K

3RD

WEEK

LECTURE – 5 Enamel: Microscopic structures, Clinical applications Dr. Prashanth K

LECTURE – 6 Amelogenesis Dr. Prashanth K

PRACTICAL – 3 Slide discussion: 7 – 9 Dr. Prashanth K

4TH

WEEK

LECTURE – 7 Dentin: Introduction, Composition, Properties, Classification, Dr. Syed Mukhit R

LECTURE – 8 Dentin: Microscopic structures, Types of dentin, Dentin Sensitivity Dr. Syed Mukhit R

PRACTICAL – 4 Slide discussion: 10 – 12 Dr. Sreeja Ravindran

5TH

WEEK

LECTURE – 9 Dentin: Clinical Applications & Dentinogenesis Dr. Syed Mukhit R

LECTURE – 10 Pulp: Introduction, Pulp anatomy, Microscopy Dr. Sreeja Ravindran

PRACTICAL – 5 Assignment presentation and discussion All staff Members

6TH

WEEK

LECTURE – 11 Pulp: Clinical applications Dr. Sreeja Ravindran

LECTURE – 12 MPE Evaluation -1 All Staff Members

PRACTICAL – 6 Assignment presentation and discussion All Staff Members

7TH

WEEK MSE -1 THEORY EXAMINATIONS

8TH

WEEK

LECTURE – 13 Cementum: Introduction, Classification, Types of cementum Dr. Syed Mukhit R

LECTURE – 14 Cementum: Microscopy, Cementogenesis & clinical applications Dr. Syed Mukhit R

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PRACTICAL – 7 Slide discussion: 13– 15 Dr. Syed Mukhit R

9TH

WEEK

LECTURE – 15 Periodontal ligament: Introduction & Microscopy Dr. Sreeja Ravindran

LECTURE – 16 Periodontal ligament: Functions & Clinical Applications Dr. Sreeja Ravindran

PRACTICAL – 8 Slide discussion: 16– 18 Dr. Sreeja Ravindran

10TH

WEEK

LECTURE – 17 Alveolar Bone: Introduction, Classification, Anatomy & blood & nerve supply

Dr. Prashanth K

LECTURE – 18 Alveolar Bone: Microscopy, & clinical applications Dr. Prashanth K

PRACTICAL – 9 Slide discussion: 19– 21 Dr. Prashanth K

11TH

WEEK

LECTURE – 19 Tooth Development: Introduction, Stages of tooth Development & Dental lamina

Dr. Syed Mukhit R

LECTURE – 20 Tooth Development: Bud Stage, & Cap Stage Dr. Syed Mukhit R

PRACTICAL – 10 Slide discussion: 21– 24 Dr. Syed Mukhit R

12th

WEEK

LECTURE – 21 Tooth Development: Bell stage & Root Development Dr. Syed Mukhit R

LECTURE – 22 Viva Voce –Group 1 Topics-Enamel,dentine,pulp,cementum,pdl and alveolar bone

All Staff Members

PRACTICAL – 11 COMPETENCY TEST – 1 A Photomicrographic identification, drawing and labelling

All staff members

13TH

WEEK

LECTURE – 23 Viva Voce Group 2 Topics-Enamel,dentine,pulp, cementum,pdl and alveolar bone

All Staff Members

LECTURE – 24 MPE Assessment – 2 All Staff Members

PRACTICAL – 12 COMPETENCY TEST – 1 B Computer based exam

All Staff Members

14TH

WEEK ESE – 1 THEORY EXAMINATIONS

WEEKS CLASSES TOPICS STAFF INCHARGE

15th

WEEK

LECTURE – 25 Oral mucous membrane- introduction, keratinized squamous epithelium Dr. Sreeja Ravindran

LECTURE – 26 Oral mucous membrane- lamina propria, basement membrane,

keratinocytes

Dr. Sreeja Ravindran

PRACTICAL – 13 Slide discussion: 25 – 27 Dr. Sreeja Ravindran

16th

WEEK

LECTURE – 27 Oral mucous membrane- keratinocytes and non-keratinocytes Dr. Sreeja Ravidran

LECTURE – 28 Oral mucous membrane- Gingiva, Palate Dr. Prashanth

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PRACTICAL – 14 Slide discussion: 28 –30 Dr. Prashanth

17th

WEEK

LECTURE – 29 Oral Mucous Membrane – buccal mucosa, alveolar mucosa, floor of

mouth

Dr. Prashanth

LECTURE – 30 Oral Mucous Membrane – Tongue, Taste buds Dr. Prashanth

PRACTICAL – 15 Slide discussion: 31 – 33 Dr. Syed Mukhit R

18th

WEEK

LECTURE – 31 Maxillary Sinus Dr. Syed Mukhit R

LECTURE – 32 Maxillary Sinus Dr. Syed Mukhit R

PRACTICAL – 16 Slide discussion: 34 – 36 Dr. Syed Mukhit R

19th

WEEK

LECTURE – 33 TMJ – development, anatomy Dr. Prashanth K

LECTURE – 34 TMJ – histology, jaw movements Dr. Prashanth K

PRACTICAL – 17 Slide discussion: 37– 39 Dr. Prashanth K

20th

WEEK

LECTURE – 35 TMJ – Clinical applications Dr. Prashanth K

LECTURE – 36 Assignment presentation and assessment All Staff Members

PRACTICAL - 18 Poster presentation All Staff Members

21ST

WEEK MSE -2 THEORY EXAMINATIONS

22ND WEEK

LECTURE – 37 Salivary glands- introduction, anatomy Dr. Sreeja Ravindran

LECTURE – 38 Salivary glands – histology Dr. Sreeja Ravindran

PRACTICAL – 19 Slide discussion: 40– 42 Dr. Sreeja Ravindran

23RD WEEK

LECTURE – 39 Salivary glands – composition and function of saliva Dr. Sreeja Ravindran

LECTURE – 40 Eruption of teeth – introduction and phases Dr. Prashant K

PRACTICAL – 20 Slide discussion: – 43 – 45 Dr. Prashant K

24TH WEEK

LECTURE – 41 Eruption of teeth – movements of teeth Dr. Prashant K

LECTURE – 42 Shedding of teeth Dr. Syed Mukith R

PRACTICAL – 21 Slide discussion: 46– 48 Dr. Syed Mukith R

LECTURE – 43 Shedding of teeth Dr. Syed Mukith R

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25TH WEEK LECTURE – 44 Individual Assignment presentation and assessment Dr. Syed Mukith R

PRACTICAL – 22 Poster presentation and assessment All staff members

26th WEEK

LECTURE – 45 Poster presentation and assessment All staff members

LECTURE – 46 Instructions for upcoming final theory and practical examinations All staff members

PRACTICAL – 23 MPE evaluation – 3 All Staff Members

27th WEEK

PRACTICAL-24 Slide discussion from ( 1 – 48) All Staff Members

LECTURE – 47 Competency test-2 Photomicrographic identification, drawing and labeling of normal oral tissues

All Staff Members

PRACTICAL – 25 COMPETENCY TEST - 2 Computer based assessment

All Staff Members

28TH WEEK ESE – 2 THEORY EXAMINATIONS

13. MARKS DISTRIBUTION & ANNOUNCEMENT

EXAMINATION TOTAL MARKS ANNOUNCEMENT OF OBTAINED MARKS OF STUDENTS

MSE 1

10

By course coordinator during office hours immediately

after examination

ESE 1 15 By course coordinator during office hours immediately after examination

MSE 2 10 By course coordinator during office hours immediately after examination

MPE

20 During 23rd Practical session i.e. one week before

final competency test Lab Session

10

Assignments

05

Oral

assessment

05

Competency Test

20 By course coordinator during office hours immediately after the examination

C. T. –

1A

05

C.T-1B

05

CT-2A

05

C. T. – 2B

05

ESE – 1

25

1 week after examination through website in

student service portal

TOTAL

100

One week after ESE - 1 through website in

student service portal

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14. ISNC STUDENT/S ATTENDANCE POLICY: APP-ISNC-SA-008

The Maximum absence with medical excuse acceptable is not more than 25%. If

any student of ISNC crosses the limit of absenteeism he/she will not be allowed

to enter in the Examination.

If the student's absence from the Quiz, practical, midterm or end block

examination and end semester examination, a medical excuse is accepted by the

dean.

Student has no right to claim and ask for the resit exam if there is a due in

payment of his/her fee.

Five weeks after the semester commences names of students who have

exceeded their absence percentage will be informed in the college and

displayed on the notice board.

At the end of the ninth week of a semester students who have exceeded 25% of

absenteeism, a second announcement is made.

After 11 weeks, a final announcement is made of the students who have no

right to appear for the final examination.

Students who are not allowed to take the examination, will not receive any

warning letters, instead a notice will be posted at the academic affair section of

the college.

If there is an absence due to a medical condition, students should provide a

medical progress reports to the department of Academic Affairs in a period of

not more than five days from the date of absence. A medical report has to be

submitted by the student or their parents within the time frame mentioned. In

case of any delay in the submission of medical report, college is not responsible

for any excuse after this period.

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Attendance Regulations for Oral Biology

This is a yearly course with two lectures, one laboratory session, which makes total

of 3 classes every week and 84 classes in a year.

A student who misses total of 6 classes during the course will be warned first,

followed by 8 classes during the course and student will be excluded from course if

he misses 10 classes throughout the course. In case of sick leave 2 more absence are

considered which makes a maximum of 12 absences throughout the year for

exclusion of a student from the course in any given condition.

Note: 1. Excluded students has to repeat the course in the next academic year, he or

she is not entitled for resit examination.

Note: 2. No formal letters are given to the students for first and second warning;

their names are displayed on the notice board of dentistry program at the end of 5th

week or 9th week or 11th week or 13th week of each semester. However for exclusion

from course a letter is issued on the student name signed by the vice dean of

dentistry program.

15. SESSION TIMINGS

Male:

Lecture: Sunday 10 AM to 12 Noon

Laboratory: Sunday 2 PM to 4 PM

Female:

Lecture: Tuesday 1PM to 3 PM

Laboratory: Monday 8 AM to 10 AM (Group -1)

Wednesday 8 AM to 10AM (Group -2)

Note: Student reaching class late by 10 minutes from the scheduled start time is not

entitled for the attendance in that particular class.

16. ACADEMIC COUNSELLING

Student who finds difficulty in understanding the subject can report to the

concerned teacher for clarifications during above mentioned office hours.

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If the difficulty persists even after consultation with the teacher then report

to course coordinator during office hours with a written note.

If difficulty is not sorted out at the course coordinator level then student can

report to the academic guide appointed for the specified year.

17. ETHICAL & PROFESSIONAL BEHAVIOUR

Students are expected to behave in an ethical and professional manner

during the lectures and laboratories as part of their development towards

competent dental professional.

During classes students should respectfully hear and shouldn’t disturb or

interrupt the teacher and students raising the doubts.

Students are expected to maintain security of questions in written exams and

quizzes and shouldn’t give or receive unauthorized aid in examinations.

During practical/laboratory sessions students should accept criticism in a

professional manner and be respectful of the needs and time of others.

Self-assessment should be done accurately and admit to learn through

weakness and strive to improve.

18. A.EMERGENCY

In Case of Fire Alarm: Collect your belongings, turnoff gas equipment and

lights calmly and immediately exit the classroom. Go to the nearest exit or

assembly point and don’t use elevators under any circumstances.

In Case of Power Outrage: Stay at your location; adjust to the lower light

condition, if the outrage appears to longer term exit the building calmly.

In Case of Earthquake: Don’t run for building exit if far, Cover your head from

falling material, after shaking subsides calmly evacuate. Once outside the

building move away from the building to pre-designated assembly point.

B. SAFETY

Cover your clothing with lab coat or gown before entering the laboratory

Wear proper eye protection when working

Never leave your laboratory bench with the burner lit unattended

Keep your work area organized and neat

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Wear a mask in case you are working or engaged with process that generates

dust.

Avoid talking to your neighbors during working in the laboratory.

CAUTION: In the event of loss of student course portfolio, written report has to

be given immediately to the course coordinator. However the laboratory and

clinical procedures recorded in the book has to be repeated.