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  • 1. CONSERVATIVE DENTISTRY INTRODUCTION The course on Conservative Dentistry takes place from the summer term of the 2nd year (term 6) through to the autumn term of the 4th year (term 10). It consists of a programme of lectures, tutorials, laboratory based practicals and clinical teaching. There are laboratory based practical assessmentsin terms 6, 7 and 11 as well as a viva at the end of term 10. Any student deemedto be unsatisfactory will be reviewed in Clinical Practice to monitor progress. Students who fail the viva will be required to re-sit it in term 11. There is a special study module in term 13 covering mainly Endodontics but also someaspectsof Conservative Dentistry. STAFF The tutors on the courseare:- P J Lumley BDS,FDSRCPS, MDentSc, PhD, FDS RCS A C Shortall BDS, DDS, FDSRCS, FFDRCSI R L Baylis BDS, FDSRCS D A Stewardson BDS,FDSRCPS R Arnold BDS D G Perryer BDS, DGDP (UK) R J K Caddick BDS, MGDSRCS, FDS RCS (Edin) P Tomson BDS, MFDS, RCS (Eng), RCS (Edin) Instructors in dental technical methods:- G D Thomas, L.C.G.I. Cert. Ed. M A Baylis The external examiner is Professor A Watts, The University of Liverpool. AIMS 1. To provide an understanding of the range of pathological conditions that may affect the dental hard tissues. 2. To provide a background to the understanding of the measuresrequired to prevent, diagnoseand managetheseconditions. 3. To develop competence in history taking and examination as it is related to the dental hard tissues, periodontium and occlusal relationships and the ability to formulate treatment plans in the light of patients restorative needsand wishes. OUTCOMES The knowledge of the indications for, and the ability to prescribe and interpret, the following special investigations; 1. Caries detection tests. Visual, transillumination, dyes Thermal and electrical sensitivity tests Percussion, mobility, palpation and periodontal probing. Bitewing radiographs Periapical radiographs(with and without rubber dam) Tests for detecting tooth/root fracture Test cavities, selective anaesthesia Facebow transfer and mounting of study casts Detection of teeth responsible for anterior guidanceand occlusal interferences Custom incisal guidancetable 2. Ability to produce accurate definitive and differential diagnosesof the following conditions and diseases,and understanding their prognoses; Conservative Dentistry Page1 October 2003
  • 2. Dental caries, including caries risk Non caries tooth substanceloss. Attrition, abrasion, erosion, trauma Toothache Exposed cervical dentine Reversible pulpitis (hyperaemia) Irreversible pulpitis (acute/chronic) Apical periodontis, apical/lateral periodontal abscess,phoenix abscess Cracked tooth syndrome Internal/external resorption Open apices Endo-perio relationships Crown/root fracture To understand when extraction is to be preferred to tooth retention To understand consequencesof tooth loss on occlusal stability 3. Knowledge of, and ability to carry out the following range of treatments and follow up measures; Patient basedpreventive strategiesincluding, advice on diet, plaque control, tooth wear causes Direct restorations – including material/technique choices Root canal therapy – on single and multicanalled teeth with patent canals less than 15o curvature Root canal retreatment – of straightforward cases Indirect restorations – single units and facebow transfer Occlusal adjustment – only simple localised adjustment Simple bridgework. Note: There is insufficient time in Conservative Dentistry Specialty Teaching to meet all these requirements. For this reason the range of practical experience is considered jointly with Clinical Practice. A range of practical assessments are performed to judge competence. The rest of the material may be assessedas part of the end of Specialty viva, end of Specialty short answer paper or in the Final examination (seesection on assessment) COURSE CONTENT The courseconsists of lectures, tutorials, laboratory practicals and clinical sessions. The outlines of the lectures and tutorials are given in Appendix 1, the details of the laboratory practicals are given in Appendix 2. LECTURES 1 st Year Introduction to Conservative Dentistry Introduction to Endodontics Term 6 Reasonsfor restoring teeth Principals of cavity preparation and management of pit and fissure caries Instrument choice and handpieceselection in cavity preparation Operator / patient safety and moisture control Management of approximal lesions in posterior teeth and replacement restorations Management of the deep carious lesion Toothache1: Diagnosesand emergency treatment of pain of pulpal origin Conservative Dentistry Page2 October 2003
  • 3. Toothache2: Pain arising from periodontal and surrounding structures Core building/replacement of lost coronal tissue Management of smooth surfacelesions Management of approximal lesions in anterior teeth Introduction to mandibular movementsand articulators Composite bonding agents Term 7 Root canal therapy – Indications, contra indications Root canal instrumentsanatomy and access Root canal preparation Root canal obturation Management of complications in root canal therapy Clinical considerations when planning indirect restorations Rotary cutting instrumentsfor indirect restoration preparations Elastomeric impression techniques Models and die preparation Pattern fabrication investing and casting Metal ceramic crowns, laboratory aspects Clinical considerations when providing indirect restorations Restoration of endodontically treatedteeth Porcelain veneers, clinical Porcelain veneers, laboratory Term 5 Dental pain aspect of Oral Diagnosis – Conservation contribution to Symposium on Medical Histories in the Practical Dental Skills module Term 11 Introduction to bridgework 1 & 2 – 1) Indications, 2) Bridge Design Abutment design and preparation Provisional restorations / impression, occlusal registration Dentist/laboratory communication Lab aspectsof conventional bridges Lab aspectsof adhesive bridges Try in, cementation and review Management of failure in root canal therapy Introduction to Rotary NiTi instrumentation Management of the edentulous space Direct posterior composite restorations Term 13 Fibrepost restorations SESSION TUTORIALS (CONSERVATIVE DENTISTRY SPECIALTY TEACHING) Term 8 1. Introductory session to Conservative Dentistry Specialty Teaching (+video of close support dentistry) 2. Practical Occlusion Exercise 1 3. Practical Occlusion Exercise 2 4. Amalgams, composites, glass ionomer cement restorations/Caries and Toothache/Radiography Spotter part 1 Conservative Dentistry Page 3 October 2003
  • 4. Term 9 5. Root canal therapy, review of technique, cleaning and shaping 6. Root canal therapy, obturation 7. Practice viva session 8. Cast gold restorations and aids to retention 9. Cast gold restorations, laboratory aspects 10. Post crowns and impressions 11. Request topic/video or catch up session Term 10 12. Anterior direct restorations – PJC vs M-C crowns 13. Porcelain veneers(indication, preparation and fitting) 14. Porcelain techniques– laboratory 15. Radiography spotter part 2 16. Post retention non-standard techniques 17. Request topic / video/ catch up 18. Vivas, mid courseassessment TUTORIALS (CLINICAL PRACTICE) – RESTORATIVE PHASE Kit review and sharpening of instruments Local anaesthesia Caries risk evaluation and diagnoses Review of mandibular movements, whipmix facebow and articulators Treatment planning for indirect restorations 3rd Year Symposium of Dental Caries organised by Dental Pathology (Conservation contribution) Review of crown preparations CLINICAL PRACTICE – GENERAL DENTAL PRACTICE PHASE Extensive range of tutorials – seeGDP phaseschedule issued in final year LABORATORY PRACTICALS JUNIOR Management of pit and fissure caries Management of approximal lesions Management of smooth surfacelesions Management of approximal lesions and trauma to anterior teeth Use of rubber dam INTERMEDIATE Root canal therapy on anterior and premolar teeth with introduction to molars Full veneer gold, metal ceramic and porcelain jacket crowns Introduction to restoration of root filled teeth, post crown SENIOR 3 unit conventional and resin bonded bridgework Partial veneer ¾ crowns and onlays Tooth coloured composite direct restorations Root canal therapy on molar teeth and use of rotary NiTi Final year Fibrepost restorations Conservative Dentistry Page 4 October 2003
  • 5. CONSERVATIVE DENTISTRY SPECIALTY TEACHING CLINICAL EXERCISES Term 8 Session 1, Close Support Dentistry – Assisted operating Sessions 2 & 3, Occlusion Practical Sessions (facebow transfer and use of whip mix semi-adjustable articulator) Students should aim to gain experiencein:- Plastic restorations under rubber dam Root canal therapy Indirect restorations; an anterior / posterior unit with a facebow transfer and mounting on Whipmix articulator Close support dentistry Opportunity, be it limited by their time available, to complete their own indirect laboratory restorations. In a way which reflects and reinforces the teaching of the lab based junior and intermediate coursesand so allows them to undertake tasks of increasing difficulty as the year progresses and their experience increases. SEDATION TEACHING The clinical component of this is given in term 14 on 6W and there is an associated series of lectures given by Kevin Fairbrother. The patient sessions for term 8 Conservative Dentistry Specialty Teaching have been dropped to make room for this teaching in final year and space for the occlusion teaching in 3rd year. STUDENT ASSESSMENT 1. Performancein all coursework is monitored as part of continuous assessment. 2. There are four specific practical competency tests in the laboratory courses; term 6 direct plastic restorations competency tests (Class 1 & Class II), term 7 multi-rooted endo, indirect restoration competency tests (which must be passed before doing these procedures on patients), term 11 fixed bridge competency test (which must be passedbefore carrying out bridgework on patients). 3. There is a viva voce examination at the end of Conservative Dentistry Specialty Teaching which forms part of the mid courseassessment. 4. Class test examinations in the form of short answer questions are used periodically. Students who fail to pass the end of specialty teaching viva will be required to re-sit in term 11. Students deemed to be under achieving clinically will be monitored in Clinical Practice. Details are given in Appendix 3. 5. All students are required to complete 2 endodontic (single & multi-rooted) casereports in their final year. COURSE ASSESSMENT Students are requested to complete a written questionnaire as to their views on the course at the end of term 11 (Appendix 5). The results of the questionnaire are considered by the head of Conservative Dentistry and at a meeting of the teaching staff concerned with the course and recommendations of any relevant findings are submitted to the staff student committee. Any decisions and actions consequent consequently are notified to the student body by the appropriate channels. RECOMMENDED READING An up to date list of recommendedtexts is postedon 8W and 6W notice boards. Conservative Dentistry Page 5 October 2003
  • 6. Other recommendedreading matter is postedat appropriate times (i.e. Senior Lab Course reading lists). Conservative Dentistry Page 6 October 2003
  • 7. APPENDIX 1 – LECTURE AND TUTORIAL SESSION OUTLINES Lectures Reasons for restoring teeth Why restore teeth, when to restoreteeth, how to restore teeth. Principals of cavity preparation and management of pit and fissure caries Classification of carious lesions, diagnoses of pit and fissure caries, correct use of probe, washing drying, isolation, management of pit and fissure caries, fissure sealants, preventative resin restoration, cavity nomenclature, angles, walls, floors, margins, cavity preparation for pit and fissure caries. Instrument choice and handpiece selection in cavity preparation Assessment, isolation, mirror, triple syringe, probes (straight / contra- angle). Cavity preparation, air turbine, air motor, hand instruments, cavity margin finishing, air turbine, air motor, hand instruments. Operator / patient safety and moisture control Protection of eyes, airway, soft tissue, cross infection, sourcesof moisture, (physiological, pathological, operative). Need for moisture control, comfort and safety, convenience, avoidance of contamination of material. Methods of achieving moisture control; high / low volume suction, cotton wool rolls, 2x2 gauze, dry guard, triple syringe, rubber dam, retraction cord. Management of approximal lesions in posterior teeth and replacement restorations Diagnosis of posterior approximal lesions, cavity preparation for approximal caries, self retentive box, the larger cavity, different ways of obtaining retention, replacement of restorations, indications, alternatives, us eof posterior composites, indications contra-indications. Management of the deep carious lesion Methods of assessment of the pulpal depth of a carious lesion, general, pain, pulp vitality, sensitivity tests, radiographic evidence, direct observation, treatment options, restoration, stabilisation, stepwise excavation. Toothache 1. Diagnoses and emergency treatment of pain of pulpal origin Exposed vital dentine, causes,clinical features, principles of treatment, cracked tooth syndrome, pulpitis, causes, clinical features, hyperaemia, reversible / irreversible pulpitis, principles of treatment, referred pain. Toothache 2. Pain arising from periodontal and surrounding structures Apical periodontitis, causes,clinical features, acute apical abscess,chronic apical abscess,chronic apical periodontitis, pain arising from other causes. Core building / replacement of lost coronal tissue Preoperative assessment, restorability, pulpal / endodontic status, periodontal status, materials, advantagesand disadvantagesof different ways of gaining additional retention pins, slots, grooves. Management of smooth surface lesions Smooth surface enamel caries, root caries, erosion / abrasion lesions, enamel hypoplasia, choice of restorative material, recurrent caries. Management of approximal lesions in anterior teeth Diagnoses, approximal caries, trauma, development disorders, discoloured teeth, tooth wear, treatment options. Conservative Dentistry Page 7 October 2003
  • 8. Introduction to mandibular movements and articulators Determinants of movement, anatomy of the TMJ, initial opening, rotation, continued opening, translation, lateral excursions, positions and relations, intercuspal, centric relation, centric relation contact position (retruded contact position), working side, non-working side, canine guidance, group function, facebow transfer, articulator types. Composite bonding agents Clinical advantages of obtaining a good bond. Mechanisms of bonding. Differences between resin / enamel and resin / dentine bonding. Nature of bonding agents. Clinical application of bonding treatments. Root canal therapy, introduction Reinforcement of diagnosis, aims of root canal therapy, indications, contraindications. Root canal instruments anatomy and access Review of root canal armamentarium, rubber dam, files, gates- gliddens, irrigation syringes, root canal system anatomy, requirementsof access,accesscavity design. Root canal preparation Double flare technique, pre-enlargement, length determination (radiographic, electronic apex locators), instrumentation, irrigation, interappointment dressing, coronal seal. Root canal obturation Different obturation materials, sealer choice. Lateral condensation, requirements, technique, coronal seal. Management of complications in root canal therapy Technical, blocks, ledges, perforation, fractured instruments, infection, persistent infections, acute apical abscess. Clinical considerations when planning indirect restorations Assessment; conservative, periodontal, endodontic, radiographic, occlusal, use of study casts, preparation design, causesof failure, material selection, gold, porcelain, metal-ceramic crowns. Rotary cutting instruments for indirect restoration preparations Indications, preparations, rotary instruments for full veneer, metal ceramic and porcelain jacket crowns. Care of rotary instruments. Elastomeric impression techniques Materials, two-stage technique, one stage technique, stock and special trays, impressions for post crowns, gingival management, retraction cord, medicaments, electrosurgery. Models and die preparation An overview of the construction of working casts and removable dies for indirect restoration construction. Pattern fabrication investing and casting Materials, techniques, setting times, heating times and temperature, certrifugal and induction casting. Metal ceramic crowns, laboratory aspects Trimming of metal casting, applying porcelain and finishing. Clinical considerations when providing indirect restorations Conservative Dentistry Page 8 October 2003
  • 9. Clinically based lecture giving an overview of the different stages and techniques used in providing indirect restorations from preparation to cementation. Restoration of endodontically treated teeth Assessment, coronal seal, amalcore, onlays, indications for post retention, preparation design, preservation of coronal dentine, ferrule effect, post types, direct/indirect. Porcelain veneers, clinical Indications, contraindications. Alternative treatments. Preoperative assessment. Tooth preparation requirements. Try in, cementation and review. Porcelain veneers, laboratory Materials, techniques, investmentsVs foil, airborne abrasion. Management of the edentulous space Treatment options. Assessment, relevance of; history examination, special tests, preliminary treatment and review. Formulation of definitive treatment plan. Clinical examples of spacemanagement. Introduction to bridgework 1 & 2 – indications and preparation 1) Terminology. Classification systems. Indications for specific designs. Preoperative assessmentsand preparatory work. Advantages and disadvantages of conventional versus resin bonded bridges. 2) Guidelines for abutment preparation for both conventional and adhesive bridges. History of adhesive bridgework and development of metal/resin bonded techniques. Hybrid bridges. Abutment design and preparation Criteria for selection of bridge abutments. Importance of size, shape, length. Advantages and disadvantages of full versus partial coverage. Review of crown preparation techniques. Paralleling techniques. Provisional restorations / impressions, occlusal registration Importance of provisionalisation, methods of construction of provisional bridges, special considerations in impressions for bridgework. Occlusal registration with particular referenceto terminal units. Dentist/laboratory communication Shade taking, communicating shaderequirements, completing prescription sheet. Lab aspects of conventional bridges Stagesof construction of fixed bridgework. Lab aspects of adhesive bridgework Materials, techniques, Rochettevs Air Abraded. Metal vs glass fibre, porcelain vs composite. Conservative Dentistry Page 9 October 2003
  • 10. Try in, cementation and review Try in procedure, instruments for making adjustments, use of powder suspension aerosol, disclosing wax, pressure spot indicators, shimstock, GHM occlusal analysis paper, thickness gauge callipers. Cementation conventional bridges, cements, cementation procedure. Resin bonded bridges, retention techniques, choice of luting material, cementation procedure. Review, timing procedure, radiographs. Management of failure in root canal therapy Evaluation of treatment, definition of failure, reasonsfor failure, retreatment, intro surgery. Introduction to Rotary NiTi Explanation of technique. Advantagesand disadvantages. “Direct Posterior Composites” Estimation of need plus indications, longevity and clinical technique for successful posterior composite restorations. Fibre Posts Material and physical properties of fibre-reinforced composite posts. Evidence available to support their use. Comparison with metal pre-prefabricated and cast posts, advantagesand disadvantages. Indications and criteria for use. Clinical procedures. Tutorials (Conservative Dentistry Specialty Teaching) Introductory session to Conservative Dentistry Specialty Teaching Aims, requirements, patient selection, patient booking, instruments, communication with dental nurses and staff, continual assessment, staff sessional records, end of term reports, vivas, supplementary teaching, clinic tour, location of materials etc. Occlusion (Sessions 2 & 3) – See chapter 6 in Restorative Dentistry Text by A D Walmsley et al Amalgam, composite, glass ionomer cement restorations Amalgam, cavity preparation requirements, indication for replacement repair alternative matrix systems, polishing, composite, different types, cavity preparation for different situations, matrices, finishing, glass ionomer, materials, cavity design, matrices, finishing. Caries and toothache The carious process, detection, prevention, treatment, toothache, aetiology, presentation, special tests, diagnosis, treatment, exposed vital dentine, reversible pulpitis, irreversible pulpitis, apical abscess, lateral periodontal abscess. Radiography spotter part 1 Interactive session looking at various different clinical situations in which radiographshave been taken Root canal therapy, review of technique, cleaning and shaping. Indications, contraindications, root canal tray, isolation, access, length determination, electronic, radiographic, preparation techniques, irrigation, interappointment dressing, coronal seal. Root canal therapy obturation Lateral condensation, requirements, technique, master cone selection, sealer choice, evaluation, provisionalisation, coronal seal. Conservative Dentistry Page 10 October 2003
  • 11. Informal viva practice The objective of this session is to give experience and feedback on the viva situation, grades are not recorded. Cast gold restorations and aids to retention Assessment and indications for gold cast restorations, preparations, margin types, temporaries, impression techniques, try in cementation, removal of failed restorations. Examples of macromechanical, micromechanical, adhesive retention, indications and contraindications for pins, alternatives. Cast gold restorations, laboratory aspects Suitable alloys for posts, FVC’s, inlays, bridges, resin bonded bridges, soldering, investments, castings, alloys, bonding. Post crowns and impressions Optimising retention, PD and Para Post systems, prefabricatedposts, removal of existing posts. Request topic / video / catch up This session will only be available if other teaching sessions have not been cancelled. Anterior indirect restorations, PJC vs M-C Indications for each type, preparations, similarities and differences, properties different materials give to crown. Porcelain veneers (indications, preparation and fitting) Indications, alternatives, requirements, contraindications, aims of tooth preparation, indications for incisal and proximal reduction, try in, cementation. Porcelain techniques, laboratory Porcelain materials, jacket crowns, metal ceramic crowns, veneers, inlays. Pressable ceramics, castable ceramics & Cad/Cam ceramic restorations. Radiography spotter part 2 Interactive session looking at various different clinical situations in which radiographshave been taken Post retention, non-standard techniques Direct techniques, Duralay, accessory pin retention, cast prefabricated, assessment, preservation of coronal dentine. Request topic / video / catch up This session will not always be available. Vivas, mid course assessment Tutorials (Clinical Practice – Restorative Phase) Kit review and sharpening of instruments Reinforcement of importanceof clean sterile instruments for clinical work. Review of hand instruments in particular gingival margins trimmers and hatchets. Sharpening of hand instruments for cavity preparation. Local anaesthesia Conservative Dentistry Page 11 October 2003
  • 12. Indications, contraindications for LA and different types of LA, revision of infiltration, mental and ID block technique including relevant anatomy. Caries risk evaluation and diagnosis Importance of diagnosis, lighting, clean teeth, dry field, identifying patient at risk, clinical, social, medical, dietary, management, dietary analysis and advice, fluoride, plaque control. Review of mandibular movements, facebow and articulators Determinants of mandibular movement, muscles of mastication, initial and continued opening, envelope of movement, mandibular positions and relationships. Treatment planning for indirect restorations Assessment, operator, patient, tooth, periodontal, conservative, endodontic, radiographic, use of study castsreview of facebow and Whipmix. Review of crown preparations Different types of crown and finish margin, armamentarium for different margins, temporisation, different impression techniques. Root canal therapy Interactive session driven by endodontic problems students have encountered whilst treating their patients. Conservative Dentistry Page 12 October 2003
  • 13. APPENDIX 2 – OUTLINE OF PRACTICAL CLASSES JUNIOR AIM The aim of this courseis to teach the student to perform the mechanical aspectsof cavity preparation and placement of plastic restorative materials. Cavities will be cut and restorations placed in a number of plastic and natural teeth. OUTCOMES On successful completion the student is expectedto:- 1. Work in a clean and methodical manner commensuratewith clinical behaviour. 2. Diagnoseand describe carious lesions. 3. Discussappropriate prescriptions for the treatment of theselesions. 4. Understand the principals of cavity preparation. 5. Demonstrate a satisfactory level of practical ability using hand and rotary instruments (high and low speed). 6. Be able to clean and oil handpieces. 7. Understand appropriate bur selection for different procedures. 8. Assessthe need for a baselining and be able to place them. 9. Be able to chooseand use appropriate matrices. 10. Manipulate carve and polish amalgam. 11. Manipulate and place composite and glass ionomer materials. 12. Assessthe need for and be able to place self tapping pins. INTERMEDIATE AIM The aim of this course is to train the student to be able to perform the mechanical aspects of root canal therapy and crown preparations. Root canal therapy and crown preparations will be performed on a number of teeth. OBJECTIVES On successful completion the student is expectedto:- 1. Expose and interpret radiographsas used in root canal therapy. 2. Make accessto the pulp chamber. 3. Determine root canal lengths. 4. Clean and shapethe root canal system. 5. Correctly use intracanal irrigants. 6. Fit a master cone. 7. Place a root canal sealer. 8. Perform lateral condensation of gutta- percha. 9. Understand the criteria used to evaluate the above procedures. 10. Make an objective assessmentof the treatment performed. 11. Demonstratean understanding of the indications for alternative crown preparations. 12. Select and control appropriate burs for different margin designs and each stageof crown preparation. 13. Prepareteeth for full veneer, metal ceramic and porcelain jacket crowns. 14. Construct provisional restorations using the following techniques; preoperative impression, pre- formed crown matrix, aluminium cap. 15. Understand the importance of retention of coronal tooth structure when preparing teeth for post crowns. 16. Construct a provisional post retained restoration. 17. Make impressions of their preparations using a single stageor two stagetechnique. 18. Show they have waxed up full veneer and constructedmetal ceramic crowns. 19. Show they have constructedan indirect post and core. Conservative Dentistry Page 13 October 2003
  • 14. SENIOR AIM The aim of this course is to reinforce and develop tooth preparation for indirect restorations in particular bridgework and to provide an introduction to molar endodontics and approximal posterior composite restorations. OUTCOMES On successful completion the student is expectedto have:- 1. Preparedand temporised a three unit posterior bridge. 2. Preparedtwo additional teeth to receive partial veneers(3/4 crown and MOD onlay). 3. Preparedteeth to receive a resin bonded bridge. 4. Perform root canal therapy on a molar tooth using rotary NiTi instruments. 5. Have completed direct approximal posterior composite restorations. 6. Passedthe 3 unit bridge test competency. APPENDIX 3 – SUPPLEMENTARY COURSE This course provides additional clinical sessions (depending on staff availability), viva practice (+ resit vivas). The criteria used in judging whether a student should have supplementary teaching in Conservative Dentistry are; an unsatisfactory end of specialty viva, not having completed a sufficient range of work in specialty teaching, insufficient patients seen or an inadequatestandard of treatment on the clinic. Currently resource does not allow additional clinical sessions on 6W, however additional sessions are periodically available on Clinical Practice – by prior arrangement only. Conservative Dentistry Page 14 October 2003
  • 15. APPENDIX 4 – SAMPLE CLASS TEST QUESTIONS Q. What is meant by a butt joint when applied to an amalgam restoration? (1 mark) A. 90o cavo surfaceangle having no unsupported enamel prisms, which would fracture. Q. List four contra indications for direct posterior composite restorations. (4 marks) A. 1. High caries rate/poor plaque control. 2. large restorations. 3. Heavy occlusal load. 4. Inadequatemoisture control. Q. Apart from the use of dentine pins, suggest 3 cavity design features that can enhance the retention of an amalgam core. (3 marks) A. 1. Grooves. 2. Slots/boxes. 3. Utilising/enhancing existing undercuts. Q. Why must the cap be replacedon a bottle of cavity varnish immediately after use? (1 mark) A. The solvent is very volatile and will quickly evaporate from an open bottle rendering the varnish too viscous to use. Q. Why is coronal leakageimportant in root canal therapy? (2 marks) A. It leads to recontamination of the root canal system with micro-organisms and leads to failure. Conservative Dentistry Page 15 October 2003
  • 16. END OF CONS SPECIALITY QUESTIONNAIRE TO INCLUDE ALL PHANTOM HEAD AND 6W TEACHING Students are requested to respond to each of the following questions: SA = Strongly agree A = Agree N = Neutral D = Disagree SD = Strongly disagree (please tick relevant box) SA A N D SD Ratio 1. The Conservation lectures helped me understand the subject 2. The Conservation lectures provided good coverage of the subject matter 3. The Conservation phantom head classes helped me understand the subject 4. The Conservation clinical sessions were valuable 5. The Conservative Dentistry tutorials helped me understand the subject 6. Teachers in Conservation made clear the subject matter that would form the basis of examination in the subject 7. There was sufficient recommended reading 8. The recommended reading was pertinent to the course 9. Conservative Dentistry staff made clear the clinical applications of the subject 10. The mixture of lectures, tutorials, practical classes and clinics was about right 11. Conservative Dentistry staff were helpful 12. Conservative Dentistry handouts were useful 13. There were sufficient handouts on the Conservative Dentistry course 14. There were adequate Conservative Dentistry textbooks in the library Additional comments: Please return this form by …………………… to Jill Boylan, Clinical Practice Secretary, Room 108, First Floor Conservative Dentistry Page 16 October 2003

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