COLLEGE OF DENTISTRY Department OF Restorative Dentistry [RDS] Introduction to Operative Dentistry (122 RDS) FIRST YEAR, 2nd Semester STUDY GUIDE 1 Message from the Dean Assalamualaikumwarahamatullahiwabarakatahu It gives me immense pleasure to welcome all the Students to the College of Dentistry – Zulfi, Majmaah University, K.S.A. The College of Dentistry aims to improve the dental health of the people in the Kingdom through providing the students with excellent clinical trainings, supporting research and learning environment. Towards this goal the Department of Restorative Dentistry has prepared a course handbook for the benefit of the students. I have read this handbook and found that the team has done an excellent job in addressing all the questions a student will have at the start of the course. This handbook is a comprehensive course guide for the students for the subject Introduction to Operative Dentistry. I would like to congratulate the team for coming up with this handbook. It is for assured that the dedication of our energetic and benevolent faculty and staff prompts the students to be skilled and knowledgeable in attaining high standards in dental education. Best wishes Dr Abdul Rahman Al Atram 2 Message from the members of the committee Dear students, Department of Restorative Dentistry welcomes you in a very important and fascinating course which will help you learning the basics of operative dentistry. During the course, you will learn basics of cavity preparation, pulp protection and subsequent restoration. You will be encouraged to learn and improve your psychomotor skills as much as possible. Good luck 3 Approval of the course The course has been reviewed, revised and approved by Departmental meeting held on ----------------Curriculum Committee meeting held on ----------------College council meeting held on ----------------- 4 Table of contents S. No. Contents Page No. 1. Message from the dean. 2 2. Message from the course committee. 3 3. Approval of the course. 4 4. Table of contents. 5 5. General course information 6 6. General course description 7 7. General course objectives 8 8. Course contents Theory Part 9 9. Course contents Practical Part 12 10. Detailed objectives of lectures 14 11. Detailed objectives of PracticalPart 16 12. Students Assessment and Marks distribution 17 13. Student expected needed study hours per week and 18 student support 14. Teaching and learning resources 18 15. Course evaluation and improvement process 18 16. Recommended Text Books 19 17. Facilities required 20 5 Course Title Course Code General Course Information Introduction to Operative Dentistry 122 RDS Course components & credit hr lectures Practical sessions 1 Prerequisite none Co - requisite 111 RDS Year / Level 1st year 2nd semester 2 Course coordinator Course Committee Course tutors Office Location College of Dentistry Alzulfi Office Phone # Office Hours 6 Credit Hrs 3 General Course Description This preclinical one semester course includes a theoretical and a practical components. The theoretical component is designed to give the 1 st year students basic cognitive knowledge of the principles, terminology, instruments, materials and techniques utilized in the practice of Operative Dentistry. The practical component provides the student with the initial experience in the application of restorative procedures for managing the carious process on phantom heads. The student should perform a series of clinical exercises utilizing current instrumentation, materials, and techniques. 7 General Course Objectives At the end of this course, students should be able to 1. To understand the principles, terminology, instruments, materials and techniques used in the practice of Operative Dentistry. 2. To understand the basic principles of cavity design for amalgam restorations. 3. To understand use of amalgam as restorative material. 4. To understand significance of ergonomics. 8 Course content A - Lectures (14) Sr no Date Detailed content Contac t hr Weeks 1 1 1 1 1 1 1 1 1 1 Introduction to operative dentistry 1 2 3 4 5 1. Definition & scope 2. Indications 3. Classification of restorations 4. Current research trends 5. Types of restorations Basics of Dental caries 1. Role of diet 2. Plaque 3. Classification 4. Minimizing caries Hand instruments used in Operative dentistry 1. Classification 2. Parts of hand instruments 3. Types of shank angles 4. Types of cutting edges 5. Name & Uses 6. formula Rotary instruments used in Operative dentistry 1. Types 2. Speed ranges 3. Uses of hi and low speed hand pieces 4. Types of burs 5. Parts of bur 6. Shank designs Sharpening & maintenance of instruments 1. Hand piece cleaning 2. Lubrication 3. Proper place for lubrication 4. Eccentricity of bur 5. Checking water and air quality 6. Why & how to sharpen 7. Sharpening materials 8. Rules of sharpening 9 Staff 6 7 8-9 Steps of cavity preparation 1. Outline form 2. Convenience form 3. Retention from 4. Resistence form 5. Cavity Toilet Midterm Exam Contents of a prepared cavity 1. Abbreviations used in cavity prep 2. Walls 3. Floors 4. Line angles 5. Point angles Amalgam restorations/ polishing & finishing 1. Steps of restorations 2. Meaning and method of trituration 3. Instruments for condensation 4. Technique of Ag filling 5. Time of condensation 6. Difference between finishing and polishing 7. Advantage of finishing 8. Reasons ofr polishing 9. Tarnish 10. Time of polishing 11. Technique of polishing 1 1 1 1 1 1 1 1 1 1 Formative exam and rectification of mistakes 10 11 Dental Restoratives 1. Difference between intra and extra-coronal restoration 2. Terminology 3. Definition of simple, compound and complex cavities 4. Direct & indirect restorations 5. Materials for restorations 10 12-13 14 Material Properties relevant to Op Dentistry 1. Stress 2. Strain 3. Hardness 4. Toughness 5. Strength 6. Creep 7. Flexibility 8. Rigidity Significance of Ergonomics in dentistry 1. Musculoskeletal disorders 2. Risk factors 3. Body strengthening exercises Consequences of not sticking to ergonomics 11 1 1 1 1 Course contents B - Preclinical laboratory sessions Sr no 1 2 3 Topic Lab protocol Detailed content Lab protocol Unit allotment Working of phantom head Physical introduction to phantom head unit Black’s Class I Class II Class III Class IV Class V ClassVI Introduction Classification of Caries (13) Contact hr Weeks 3 1 3 1 3 1 3 1 3 1 Test 1 (5 marks) 4 5 6 Hand instruments Rotary instruments Identification Proper grasp Use Identification classification Mounting Use 12 Tutor 7 Sharpening and maintenance of instruents 8 10 11 12 3 1 Test 2 9 Oiling sterilization Identification of bur shape Use of burs Hand pieces Black’s class V Cavity prep For amalgam (incisor) Outline form convenience form resistance form retention form finishing of cavity Black’s class V cavity prep For amalgam ( molars) Outline form convenience form resistance form retention form finishing of cavity amalgam manipulation insertion condensation finishing Root exercises Restoration with amalgam 3 3 1 3 1 3 1 3 1 13 Revision and make up of any deficiency 13 Learning objectives (Theory) A – Lectures: At the end of each lecture, the students should be able to 1. Introduction to Operative Dentistry Define operative Dentistry Mention indications of operative dentistry procedures Describe goals of operative dentistry procedures Explain meaning of preclinical Operative dentistry Define categories of materials used in operative dentistry 2. Basics of Dental Caries Define Caries Define Dental Plaque Describe remineralization / demineralization of hard tooth tissue Name the main causative microorganism of caries Mention various terms used in describing caries 3. Operative Dentistry Hand Instruments Identify and define hand - instruments Name instruments included in a set of examination instruments Identify and demonstrate use of various restorative instruments Name, identify and mention uses of restorative instruments Name, identify and mention uses of accessory instruments used in operative dentistry 4. Operative Dentistry Rotary Instruments Define rotary instrument Identify and distinguish b/w high and low speed hand pieces Mention speed ranges of high and low speed hand pieces Mention uses of high and low speed hand pieces Mention types of tungsten carbide burs Identify & name basic shapes of burs Mention various lengths of shanks of drill Mention precautions to use rotary instruments 5. Maintenance and Sharpening of instruments Define the term maintenance Describe the significance of maintenance and sharpening of instruments Demonstrate ability to clean and lube dental hand pieces Describe importance of drying and cooling of HP after sterilization Mention precautions to take before sending HP for sterilization Describe why and when to sharpen an instruments List advantage of using sharp instrument State principles of sharpening 14 6. Steps of cavity preparation List steps of tooth preparation Describe meaning of term “tooth preparation” Differentiate between the terms “tooth preparation” and “cavity preparation” Mention terminology used in cavity prep Describe abbreviation used in tooth prep Contents of prepared Cavity Define Cavosurface angle Distinguish between Intracoronal and Extracoronal preparation Differentiate between resistance and retention form of a cavity Describe meaning of Extension for Prevention Enumerate various contents of a cavity 7. Amalgam Restorations finishing & polishing Define a restoration List steps of amalgam restoration Define trituration Identify instrument for carrying amalgam to prepared cavity Define carving and burnishing of amalgam Enumerate instruments used for amalgam carving Define finishing and polishing State reasons for polishing a restoration 8. Dental Restoratives Differentiate between intra and extra-coronal restoration Use terminology employed in tooth preparation Define Direct & indirect restorations Enumerate materials for restorations 9. Material Properties relevant to operative Dentistry Define and differentiate the terms Stress & strain Define : Hardness, Toughness, Strength, and Creep Define and differentiate the termsFlexibility&Rigidity Define: Elastic limit and elsticity Radiolucency /radioopacity Transparency/ transopcaity&tranlucency 15 Learning objectives (skills) B- Practical Sessions At the end of each practical session, students should be able to 1 - Introduction Describe various course contents Take care of his allocated phantom head Follow prescribed laboratory protocol 2. Classification of caries Define and Identify Black’s Class I Class II Class III Class IV Class V ClassVI 3. Hand instrument Identify instrument Mention parts of instrument Show Proper grasp of instrument Use each instrument for appropriate use 4. Rotary Instrument Identify rotary instrument Mount burs on Hand piece Differentiate between High and low speed hand pieces Describe uses of hand pieces Hold hand pieces properly for effective use 5. sharpenening and maintenance of instrument Sharpen instrument effectively Lubricate instrument Perform cleanliness of instruments 6. Black’s Class V cavity preparation Establish Outline form Convenience form Resistance form 16 Retention form Finishing of cavity Identify Class V cavity Mention the meaning of 4-walled cavity 7. Restoration of class V cavity Triturate amalgam mechanically Pack amalgam into the prepared cavity Fill the amalgam within 3-4 minutes after mixing Carve and finish amalgam Assessment of students 3-Introduction to Operative Dentistry (2 credit hours, 1 theory, 1 lab) The following percentages (%) of the total grade will be assigned : Theoretical part …………………………..……50% Practical part ………………………………...…50% In-course assessments……………………………………………….... 60% o Midterm written examination ……..…20% o Midterm practical examination ….…..10% o Weekly practical assessments………10% o Behavior and attitude ………………….5% o Research …………………………..…...2% o Presentation …………………………....1% o Quiz….. ……………………………..…...2% o Oral exam ………………………………10% Final examination …………………..…………………………………….40 % Final practical examination ……………15% Final written examination ………………25% 17 Students ‘recommended self study hours per week & student support In addition to the teaching hours in the college, the student is expected to give at least 1 hour daily to this subject for 5 days a week. The students are encouraged to keep liaison with the tutor for any ambiguity or any additional help required in understanding of the course. Teaching and learning recourses Class lectures Phantom head exercises Videos Written assignment Presentations Course evaluation & improvement process Students’ feed back through questionnaire Reviewing and assessing in the departmental meeting whether objectives of the course were achieved; if not why? Introducing new learning objectives keeping current research on the subject in view 18 Books 1. Sturdevant's Art and Science of Operative Dentistry Harold O Heymann 2. - Pickard's manual of operative dentistry, 6th Edition BY 9th edition BYG.Logan 3. Atlas of operative dentistry: preclinical and clinical procedures BY Joseph R Evans, John H Wetz, Roy A Wilko 4. Phantom Head Laboratory Manual prepared by Department of Restorative Dental Sciences, College of Dentistry, AlmajmaahUniveristy. 19 Facilities required Class room for lectures Lap top for audiovisual support Phantom head laboratory for practical sessions Instruments for practical sessions Examination instruments: Mirror Explorer Tweezers Spoon excavator Cavity preparation: Hatchet Hoe Chisel High-speed handpiece Conventional-speed contra-angle handpiece Tungsten carbide burs: Round burs: ¼, ½ Inverted cone: 33 ½ Tapered Fissure: 169, 169L, 171,172 Straight fissure: 56 Pear shape: 330L Twelve-fluted carbide bur (composite) # 7104 Thirty –fluted carbide bur # 9406 Diamond tips: round, fissure, tapered fissure, inverted cone Restoration,Condensation and carving: Amalgam carrier Amalgam condenser Discoid-cleoid carver Egg shaped carver Ball ended burnisher Plastic instrument 20 Material manipulation Glass slabs Mortar/pestle Amalgamator Dappen Dishes Cement spatula Matricing: Tofflemyre matrix retainer Matrix band Wedge Finishing and polishing: Bristle brush Rubber cup Two-sided finishing strips (composite) Instrument Sharpening: Arkansas stone Isolation from oral fluids Rubber Dam kits Rubber Dam Sheet Materials for practical sessions Amalgam Composite Etching gel Ca Hydroxide cement for lining Zinc Phosphate cement Zinc oxide cement Polycarboxylate cement GIC Plastic teeth FULL SETS for phantom head upper and lower arches Upper and lower molars 21